ChipFind - документация

Электронный компонент: ADR366AUJZ-REEL7

Скачать:  PDF   ZIP

Document Outline

Low Power, Low Noise Voltage References
with Sink/Source Capability
ADR360/ADR361/ADR363/ADR364/ADR365/ADR366
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
2005 Analog Devices, Inc. All rights reserved.
FEATURES
Compact TSOT-23-5 packages
Low temperature coefficient
B grade: 9 ppm/C
A grade: 25 ppm/C
Initial accuracy
B grade: 3 mV maximum
A grade: 6 mV maximum
Ultralow output noise: 6.8 V p-p (0.1 Hz to 10 Hz)
Low dropout: 300 mV
Low supply current: 190 A, Maximum
No external capacitor required
Output current: +5 mA/-1 mA
Wide temperature range: -40C to +125C
APPLICATIONS
Battery-powered instrumentations
Portable medical instrumentations
Data acquisition systems
Industrial process controls
Automotive
PIN CONFIGURATION
05467-001
NC
1
GND
2
V
IN
3
TRIM
5
V
OUT
4
ADR36x
TOP VIEW
(Not to Scale)
NC = NO CONNECT
Figure 1. 5-Lead TSOT (UJ Suffix)
Table 1.
Model V
OUT
(V)
1
Temperature
Coefficient (ppm/C)
Accuracy (mV)
ADR360B 2.048
9
3
ADR360A 2.048
25
6
ADR361B 2.5
9
3
ADR361A 2.5
25
6
ADR363B 3.0
9
3
ADR363A 3.0
25
6
ADR364B 4.096
9
4
ADR364A 4.096
25
8
ADR365B 5.0
9
4
ADR365A 5.0
25
8
ADR366B 3.3
9
4
ADR366A 3.3
25
8
1
Contact Analog Devices, Inc. for other voltage options.
GENERAL DESCRIPTION
The ADR360/ADR361/ADR363/ADR364/ADR365/ADR366
are precision 2.048 V, 2.5 V, 3.0 V, 4.096 V, 5.0 V, and 3.3 V band
gap voltage references that feature low power, high precision in
a tiny footprint. Using ADI's patented temperature drift
curvature correction techniques, the ADR36x references achieve
a low temperature drift of 9 ppm/C in the TSOT package.
The ADR36x family of micropower, low dropout voltage
references provides a stable output voltage from a minimum
supply of 300 mV above the output. Their advanced design
eliminates the need for external capacitors, which further
reduces board space and system cost. The combination of low
power operation, small size, and ease of use makes the ADR36x
precision voltage references ideally suited for battery-operated
applications.
ADR360/ADR361/ADR363/ADR364/ADR365/ADR366
Rev. 0 | Page 2 of 20
TABLE OF CONTENTS
ADR360--Specifications ................................................................. 3
ADR361--Specifications ................................................................. 4
ADR363--Specifications ................................................................. 5
ADR364--Specifications ................................................................. 6
ADR365--Specifications ................................................................. 7
ADR366--Specifications ................................................................. 8
Absolute Maximum Ratings............................................................ 9
Thermal Resistance ...................................................................... 9
ESD Caution...................................................................................9
Terminology .................................................................................... 10
Typical Performance Characteristics ........................................... 11
Theory of Operation ...................................................................... 16
Applications..................................................................................... 17
Basic Voltage Reference Connection ....................................... 17
Outline Dimensions ....................................................................... 19
Ordering Guide .......................................................................... 19
REVISION HISTORY
4/05--Revision 0: Initial Version
ADR360/ADR361/ADR363/ADR364/ADR365/ADR366
Rev. 0 | Page 3 of 20
ADR360--SPECIFICATIONS
Electrical Characteristics (V
IN
= 2.35 V to 15 V, T
A
= 25C, unless otherwise noted.)
Table 2.
Parameter Symbol
Conditions
Min
Typ
Max
Unit
OUTPUT VOLTAGE
V
O
A
Grade
2.042 2.048 2.054 V
V
O
B
Grade
2.045 2.048 2.051 V
INITIAL ACCURACY
V
OERR
A
Grade
6
mV
V
OERR
A
Grade
0.29
%
V
OERR
B
Grade
3
mV
V
OERR
B
Grade
0.15
%
A Grade, -40C < T
A
< +125C
25
ppm/C
TEMPERATURE COEFFICIENT
TCV
O
B Grade, -40C < T
A
< +125C
9
ppm/C
SUPPLY VOLTAGE HEADROOM
V
IN
- V
O
300
mV
LINE REGULATION
V
O
/V
IN
V
IN
= 2.45 V to 15 V, -40C < T
A
< +125C
0.105
mV/V
I
LOAD
= 0 mA to 5 mA, -40C < T
A
< +125C, V
IN
= 3 V
0.37
mV/mA
LOAD REGULATION
V
O
/I
LOAD
I
LOAD
= -1 mA to 0 mA, -40C < T
A
< +125C, V
IN
= 3 V
0.82
mV/mA
QUIESCENT CURRENT
I
IN
-40C < T
A
< +125C
150
190
A
VOLTAGE NOISE
e
N p-p
0.1 Hz to 10 Hz
6.8
V p-p
TURN-ON SETTLING TIME
t
R
25
s
LONG-TERM STABILITY
1
V
O
1, 000 Hours
50
ppm
OUTPUT VOLTAGE HYSTERESIS
V
O_HYS
100
ppm
RIPPLE REJECTION RATIO
RRR
f
IN
= 60 kHz
70
dB
V
IN
= 5 V
25
mA
SHORT CIRCUIT TO GND
I
SC
V
IN
= 15 V
30
mA
1
The long-term stability specification is noncumulative. The drift subsequent 1,000 hour periods are significantly lower than in the first 1,000 hour period.
ADR360/ADR361/ADR363/ADR364/ADR365/ADR366
Rev. 0 | Page 4 of 20
ADR361--SPECIFICATIONS
Electrical Characteristics (V
IN
= 2.8 V to 15 V, T
A
= 25C, unless otherwise noted.)
Table 3.
Parameter Symbol
Conditions
Min
Typ
Max
Unit
OUTPUT VOLTAGE
V
O
A
Grade
2.494 2.500 2.506 V
V
O
B
Grade
2.497 2.500 2.503 V
INITIAL ACCURACY
V
OERR
A Grade
6
mV
V
OERR
A Grade
0.24
%
V
OERR
B Grade
3
mV
V
OERR
B Grade
0.12
%
A Grade, -40C < T
A
< +125C
25
ppm/C
TEMPERATURE COEFFICIENT
TCV
O
B Grade, -40C < T
A
< +125C
9
ppm/C
SUPPLY VOLTAGE HEADROOM
V
IN
- V
O
300
mV
LINE REGULATION
V
O
/V
IN
V
IN
= 2.8 V to 15 V, -40C < T
A
< +125C
0.125
mV/V
I
LOAD
= 0 mA to 5 mA, -40C < T
A
< +125C, V
IN
= 3.5 V
0.45
mV/mA
LOAD REGULATION
V
O
/I
LOAD
I
LOAD
= -1 mA to 0 mA, -40C < T
A
< +125C, V
IN
= 3.5 V
1
mV/mA
QUIESCENT CURRENT
I
IN
-40C < T
A
< +125C
150
190
A
VOLTAGE NOISE
e
N p-p
0.1 Hz to 10 Hz
8.25
V p-p
TURN-ON SETTLING TIME
t
R
25
s
LONG-TERM STABILITY
1
V
O
1, 000 Hours
50
ppm
OUTPUT VOLTAGE HYSTERESIS
V
O_HYS
100
ppm
RIPPLE REJECTION RATIO
RRR
f
IN
= 60 kHz
70
dB
V
IN
= 5 V
25
mA
SHORT CIRCUIT TO GND
I
SC
V
IN
= 15 V
30
mA
1
The long-term stability specification is noncumulative. The drift subsequent 1,000 hour periods are significantly lower than in the first 1,000 hour period.
ADR360/ADR361/ADR363/ADR364/ADR365/ADR366
Rev. 0 | Page 5 of 20
ADR363--SPECIFICATIONS
Electrical Characteristics (V
IN
= 3.3 V to 15 V, T
A
= 25C, unless otherwise noted.)
Table 4.
Parameter Symbol
Conditions
Min
Typ
Max
Unit
OUTPUT VOLTAGE
V
O
A
Grade
2.994 3.000 3.006 V
V
O
B
Grade
2.997 3.000 3.003 V
INITIAL ACCURACY
V
OERR
A
Grade
6
mV
V
OERR
A
Grade
0.2
%
V
OERR
B
Grade
3
mV
V
OERR
B
Grade
0.1
%
A Grade, -40C < T
A
< +125C
25
ppm/C
TEMPERATURE COEFFICIENT
TCV
O
B Grade, -40C < T
A
< +125C
9
ppm/C
SUPPLY VOLTAGE HEADROOM
V
IN
- V
O
300
mV
LINE REGULATION
V
O
/V
IN
V
IN
= 3.3 V to 15 V, -40C < T
A
< +125C
0.15
mV/V
I
LOAD
= 0 mA to 5 mA, -40C < T
A
< +125C, V
IN
= 4 V
0.54
mV/mA
LOAD REGULATION
V
O
/I
LOAD
I
LOAD
= -1 mA to 0 mA, -40C < T
A
< +125C, V
IN
= 4 V
1.2
mV/mA
QUIESCENT CURRENT
I
IN
-40C < T
A
< +125C
150
190
A
VOLTAGE NOISE
e
N p-p
0.1 Hz to 10 Hz
8.7
V p-p
TURN-ON SETTLING TIME
t
R
25
s
LONG-TERM STABILITY
1
V
O
1, 000 Hours
50
ppm
OUTPUT VOLTAGE HYSTERESIS
V
O_HYS
100
ppm
RIPPLE REJECTION RATIO
RRR
f
IN
= 60 kHz
70
dB
V
IN
= 5 V
25
mA
SHORT CIRCUIT TO GND
I
SC
V
IN
= 15 V
30
mA
1
The long-term stability specification is noncumulative. The drift subsequent 1,000 hour periods are significantly lower than in the first 1,000 hour period.
ADR360/ADR361/ADR363/ADR364/ADR365/ADR366
Rev. 0 | Page 6 of 20
ADR364--SPECIFICATIONS
Electrical Characteristics (V
IN
= 4.4 V to 15 V, T
A
= 25C, unless otherwise noted.)
Table 5.
Parameter Symbol
Conditions
Min
Typ
Max
Unit
OUTPUT VOLTAGE
V
O
A
Grade
4.088 4.096 4.104 V
V
O
B
Grade
4.092 4.096 4.100 V
INITIAL ACCURACY
V
OERR
A
Grade
8
mV
V
OERR
A
Grade
0.2
%
V
OERR
B
Grade
4
mV
V
OERR
B
Grade
0.1
%
A Grade, -40C < T
A
< +125C
25
ppm/C
TEMPERATURE COEFFICIENT
TCV
O
B Grade, -40C < T
A
< +125C
9
ppm/C
SUPPLY VOLTAGE HEADROOM
V
IN
- V
O
300
mV
LINE REGULATION
V
O
/V
IN
V
IN
= 4.4 V to 15 V, -40C < T
A
< +125C
0.205
mV/V
I
LOAD
= 0 mA to 5 mA, -40C < T
A
< +125C, V
IN
= 5 V
0.735
mV/mA
LOAD REGULATION
V
O
/I
LOAD
I
LOAD
= -1 mA to 0 mA, -40C < T
A
< +125C, V
IN
= 5 V
1.75
mV/mA
QUIESCENT CURRENT
I
IN
-40C < T
A
< +125C
150
190
A
VOLTAGE NOISE
e
N p-p
0.1 Hz to 10 Hz
11
V p-p
TURN-ON SETTLING TIME
t
R
25
s
LONG-TERM STABILITY
1
V
O
1, 000 Hours
50
ppm
OUTPUT VOLTAGE HYSTERESIS
V
O_HYS
100
ppm
RIPPLE REJECTION RATIO
RRR
f
IN
= 60 kHz
70
dB
V
IN
= 5 V
25
mA
SHORT CIRCUIT TO GND
I
SC
V
IN
= 15 V
30
mA
1
The long-term stability specification is noncumulative. The drift subsequent 1,000 hour periods are significantly lower than in the first 1,000 hour period.
ADR360/ADR361/ADR363/ADR364/ADR365/ADR366
Rev. 0 | Page 7 of 20
ADR365--SPECIFICATIONS
Electrical Characteristics (V
IN
= 5.3 V to 15 V, T
A
= 25C, unless otherwise noted.)
Table 6.
Parameter Symbol
Conditions
Min
Typ
Max
Unit
OUTPUT VOLTAGE
V
O
A
Grade
4.992 5.000 5.008 V
V
O
B
Grade
4.996 5.000 5.004 V
INITIAL ACCURACY
V
OERR
A
Grade
8
mV
V
OERR
A
Grade
0.16
%
V
OERR
B
Grade
4
mV
V
OERR
B
Grade
0.08
%
A Grade, -40C < T
A
< +125C
25
ppm/C
TEMPERATURE COEFFICIENT
TCV
O
B Grade, -40C < T
A
< +125C
9
ppm/C
SUPPLY VOLTAGE HEADROOM
V
IN
- V
O
300
mV
LINE REGULATION
V
O
/V
IN
V
IN
= 5.3 V to 15 V, -40C < T
A
< +125C
0.25
mV/V
I
LOAD
= 0 mA to 5 mA, -40C < T
A
< +125C, V
IN
= 6V
0.9
mV/mA
LOAD REGULATION
V
O
/I
LOAD
I
LOAD
= -1 mA to 0 mA, -40C < T
A
< +125C, V
IN
= 6 V
2
mV/mA
QUIESCENT CURRENT
I
IN
-40C < T
A
< +125C
150
190
A
VOLTAGE NOISE
e
N p-p
0.1 Hz to 10 Hz
12.8
V p-p
TURN-ON SETTLING TIME
t
R
20
s
LONG-TERM STABILITY
1
V
O
1, 000 Hours
50
ppm
OUTPUT VOLTAGE HYSTERESIS
V
O_HYS
100
ppm
RIPPLE REJECTION RATIO
RRR
f
IN
= 60 kHz
70
dB
V
IN
= 5 V
25
mA
SHORT CIRCUIT TO GND
I
SC
V
IN
= 15 V
30
mA
1
The long-term stability specification is noncumulative. The drift subsequent 1,000 hour periods are significantly lower than in the first 1,000 hour period.
ADR360/ADR361/ADR363/ADR364/ADR365/ADR366
Rev. 0 | Page 8 of 20
ADR366--SPECIFICATIONS
Electrical Characteristics (V
IN
= 3.6 V to 15 V, T
A
= 25C, unless otherwise noted.)
Table 7.
Parameter Symbol
Conditions
Min
Typ
Max
Unit
OUTPUT VOLTAGE
V
O
A
Grade
3.292 3.300 3.308 V
V
O
B
Grade
3.296 3.300 3.304 V
INITIAL ACCURACY
V
OERR
A
Grade
8
mV
V
OERR
A
Grade
0.25
%
V
OERR
B
Grade
4
mV
V
OERR
B
Grade
0.125
%
A Grade, -40C < T
A
< +125C
25
ppm/C
TEMPERATURE COEFFICIENT
TCV
O
B Grade, -40C < T
A
< +125C
9
ppm/C
SUPPLY VOLTAGE HEADROOM
V
IN
- V
O
300
mV
LINE REGULATION
V
O
/V
IN
V
IN
= 3.6 V to 15 V, -40C < T
A
< +125C
0.165
mV/V
I
LOAD
= 0 mA to 5 mA, -40C < T
A
< +125C, V
IN
= 4.2 V
0.6
mV/mA
LOAD REGULATION
V
O
/I
LOAD
I
LOAD
= -1 mA to 0 mA, -40C < T
A
< +125C, V
IN
= 4.2 V
1.35
mV/mA
QUIESCENT CURRENT
I
IN
-40C < T
A
< +125C
150
190
A
VOLTAGE NOISE
e
N p-p
0.1 Hz to 10 Hz
9.3
V p-p
TURN-ON SETTLING TIME
t
R
25
s
LONG-TERM STABILITY
1
V
O
1, 000 Hours
50
ppm
OUTPUT VOLTAGE HYSTERESIS
V
O_HYS
100
ppm
RIPPLE REJECTION RATIO
RRR
f
IN
= 60 kHz
70
dB
V
IN
= 5 V
25
mA
SHORT CIRCUIT TO GND
I
SC
V
IN
= 15 V
30
mA
1
The long-term stability specification is noncumulative. The drift subsequent 1,000 hour periods are significantly lower than in the first 1,000 hour period.
ADR360/ADR361/ADR363/ADR364/ADR365/ADR366
Rev. 0 | Page 9 of 20
ABSOLUTE MAXIMUM RATINGS
@ 25C, unless otherwise noted.
Table 8.
Parameter Rating
Supply Voltage
18 V
Output Short-Circuit Duration to GND
V
IN
< 15 V
V
IN
> 15 V

Indefinite
10 sec
Storage Temperature Range
-65C to +125C
Operating Temperature Range
40C to +125C
Junction Temperature Range
65C to +125C
Lead Temperature Range (Soldering, 60 sec)
300C
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
THERMAL RESISTANCE
JA
is specified for the worst-case conditions, that is,
JA
is
specified for device soldered in circuit board for surface-mount
packages.
Table 9. Thermal Resistance
Package Type
JA
JC
Unit
TSOT-23-5 (UJ-5)
230
146
C/W
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the
human body and test equipment and can discharge without detection. Although this product features
proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy
electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance
degradation or loss of functionality.
ADR360/ADR361/ADR363/ADR364/ADR365/ADR366
Rev. 0 | Page 10 of 20
TERMINOLOGY
Temperature Coefficient
The change of output voltage with respect to operating
temperature changes normalized by the output voltage at 25C.
This parameter is expressed in ppm/C and can be determined
by
[
]
( ) ( )
(
)
(
)
6
1
2
1
2
10
25
C
ppm/
=
T
T
C
V
T
V
T
V
TCV
O
O
O
O
where:
V
O
(25C) = V
O
at 25C.
V
O
(T
1
) = V
O
at Temperature 1.
V
O
(T
2
) = V
O
at Temperature 2.
Line Regulation
The change in output voltage due to a specified change in input
voltage. This parameter accounts for the effects of self-heating.
Line regulation is expressed in either percent per volt, parts-
per-million per volt, or microvolts per volt change in input
voltage.
Load Regulation
The change in output voltage due to a specified change in load
current. This parameter accounts for the effects of self-heating.
Load regulation is expressed in either microvolts per
milliampere, parts-per-million per milliampere, or ohms of dc
output resistance.
Long-Term Stability
Typical shift of output voltage at 25C on a sample of parts
subjected to a test of 1,000 hours at 25C.
V
O
= V
O
(t
0
) V
O
(t
1
)
[
]
( ) ( )
( )


=
6
0
1
0
10
t
V
t
V
t
V
ppm
V
O
O
O
O
where:
V
O
(t
0
) = V
O
at 25C at Time 0.
V
O
(t
1
) = V
O
at 25C after 1,000 hours operation at 25C.
Thermal Hysteresis
The change of output voltage after the device is cycled through
temperature from +25C to 40C to +125C and back to
+25C. This is a typical value from a sample of parts put
through such a cycle.
V
O_HYS
= V
O
(25C) V
O_TC
[
]
(
)
(
)
6
10
25
25
=
C
V
V
C
V
ppm
V
O
O_TC
O
O_HYS
where:
V
O
(25C) = V
O
at 25C.
V
O_TC
= V
O
at 25C after temperature cycle at +25C to 40C to
+125C and back to +25C.
NOTES
Input Capacitor
Input capacitors are not required on the ADR36x. There is no
limit for the value of the capacitor used on the input, but a 1 F
to 10 F capacitor on the input improves transient response in
applications where the supply suddenly changes. An additional
0.1 F capacitor in parallel also helps reduce noise from the
supply.
Output Capacitor
The ADR36x does not require output capacitors for stability
under any load condition. An output capacitor, typically 0.1 F,
filters out any low level noise voltage and does not affect the
operation of the part. On the other hand, the load transient
response can improve with an additional 1 F to 10 F output
capacitor in parallel. A capacitor here acts as a source of stored
energy for a sudden increase in load current. The only
parameter that degrades by adding an output capacitor is the
turn-on time. The degradation depends on the size of the
capacitor chosen.
ADR360/ADR361/ADR363/ADR364/ADR365/ADR366
Rev. 0 | Page 11 of 20
TYPICAL PERFORMANCE CHARACTERISTICS
2.052
2.044
40
05467-002
TEMPERATURE (
C)
V
OUT
(V
)
2.050
2.048
2.046
20
0
20
40
60
80
100
120
Figure 2. ADR360 Output Voltage vs. Temperature
2.504
2.494
40
05467-003
TEMPERATURE (
C)
V
OUT
(V
)
125
2.502
2.500
2.498
2.496
25 10
5
20
35
50
65
80
95
110
Figure 3. ADR361 Output Voltage vs. Temperature
3.003
2.996
40
05467-004
TEMPERATURE (
C)
V
OUT
(V
)
20
0
20
40
60
80
100
120
3.002
3.001
3.000
2.999
2.998
2.997
Figure 4. ADR363 Output Voltage vs. Temperature
4.998
4.990
40
05467-005
TEMPERATURE (
C)
V
OUT
(V
)
125
4.997
4.996
4.995
4.994
4.993
4.992
4.991
25 10
5
20
35
50
65
80
95
110
Figure 5. ADR365 Output Voltage vs. Temperature
0.165
0.115
2.8
05467-006
SUPPLY VOLTAGE (V)
IDD (mA)
0.155
0.145
0.135
0.125
4.1
5.3
6.6
7.8
9.1
10.3 11.6 12.8 14.1
+125
C
+25
C
40
C
Figure 6. ADR361 Supply Current vs. Input Voltage
0.17
0.14
5.3
05467-007
V
IN
(V)
IDD (
m
A)
0.16
0.15
6.3
7.3
8.3
9.3
10.3
11.3
12.3
13.3
14.3
+125
C
+25
C
40
C
Figure 7. ADR365 Supply Current vs. Input Voltage
ADR360/ADR361/ADR363/ADR364/ADR365/ADR366
Rev. 0 | Page 12 of 20
0.18
0
40
125
05467-036
TEMPERATURE (
C)
LOAD REGULATION (mV/mA)
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
25 10
5
20
35
50
65
80
95
110
V
IN
= 9V
V
IN
= 3.5V
Figure 8. ADR361 Load Regulation vs. Temperature
0.14
0
40
125
05467-037
TEMPERATURE (
C)
LOAD REGULATION (mV/mA)
25 10
5
20
35
50
65
80
95
110
0.12
0.10
0.08
0.06
0.04
0.02
V
IN
= 9V
V
IN
= 6V
Figure 9. ADR365 Load Regulation vs. Temperature
25
0
40
05467-008
TEMPERATURE (
C)
LINE REGULATION (ppm/V)
20
0
20
40
60
80
100
120
20
15
10
5
Figure 10. ADR360 Line Regulation vs. Temperature, V
IN
= 2.45 V to 15 V
9
0
40
05467-009
TEMPERATURE (
C)
LINE REGULATION (ppm/V)
125
25 10
5
20
35
50
65
80
95
110
8
7
6
5
4
3
2
1
Figure 11. ADR361 Line Regulation vs. Temperature, V
IN
= 2.8 V to 15 V
12
0
40
05467-010
TEMPERATURE (
C)
LINE REGULATION (ppm/V)
20
0
20
40
60
80
100
120
10
8
6
4
2
Figure 12. ADR365 Line Regulation vs. Temperature, V
IN
= 5.3 V to 15 V
1.6
0
2
05467-011
LOAD CURRENT (mA)
DIFFERENTIAL VOLTAGE (V)
10
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
2
4
6
8
+125
C
+25
C
40
C
Figure 13. ADR361 Minimum Input Voltage vs. Load Current
ADR360/ADR361/ADR363/ADR364/ADR365/ADR366
Rev. 0 | Page 13 of 20
1.8
0
2
05467-012
LOAD CURRENT (mA)
DIFFERENTIAL VOLTAGE (V)
10
0
2
4
6
8
+125
C
40
C
+25
C
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
Figure 14. ADR365 Minimum Input Voltage vs. Load Current
XX
XX
05467-013
XX
2
V/DIV
TIME = 1s/DIV
Figure 15. ADR361 Minimum Input Voltage vs. Load Current
XX
XX
05467-014
XX
50
V/DIV
TIME = 1s/DIV
Figure 16. ADR361 10 Hz to 10 kHz Noise
XX
XX
05467-015
XX
TIME = 1s/DIV
2
V/DIV
Figure 17. ADR363 0.1 Hz to 10 kHz Noise
XX
XX
05467-016
XX
50
V/DIV
TIME = 1s/DIV
Figure 18. ADR363 10 Hz to 10 kHz Noise
XX
XX
05467-017
XX
2
V/DIV
TIME = 1s/DIV
Figure 19. ADR365 0.1 Hz to 10 Hz Noise
ADR360/ADR361/ADR363/ADR364/ADR365/ADR366
Rev. 0 | Page 14 of 20
XX
XX
05467-018
XX
100
V/DIV
TIME = 1s/DIV
Figure 20. ADR365 10 Hz to 10 kHz Noise
50
0
100
100k
05467-031
FREQUENCY (Hz)
OUTP
UT IMP
E
D
ANCE
(
)
45
40
35
30
25
20
15
10
5
1k
10k
Figure 21. Voltage Noise Density vs. Frequency
10
90
1M
05467-030
FREQUENCY (Hz)
RIP
P
L
E
RE
J
E
CTION (dB)
0
10
20
30
40
50
60
70
80
100
1k
10k
100k
Figure 22. Ripple Rejection Ratio
XX
XX
05467-019
XX
V
OUT
V
IN
500mV/DIV
500mV/DIV
4
s/DIV
Figure 23. ADR361 Line Transient Response (Increasing), No Capacitors
XX
XX
05467-020
XX
V
OUT
V
IN
500mV/DIV
500mV/DIV
10
s/DIV
Figure 24. ADR361 Line Transient Response (Decreasing), No Capacitors
XX
XX
05467-021
XX
V
OUT
V
IN
20mV/DIV
500mV/DIV
100
s/DIV
Figure 25. ADR361 Line Transient Response, 0.1 F Input Capacitor
ADR360/ADR361/ADR363/ADR364/ADR365/ADR366
Rev. 0 | Page 15 of 20
XX
XX
05467-032
XX
2ms/DIV
100mV/DIV
LOAD ON
LOAD OFF
V
OUT
Figure 26. ADR361 Load Transient Response
XX
XX
05467-033
XX
100mV/DIV
LOAD ON
V
OUT
100
s/DIV
Figure 27. ADR361 Load Transient Response, 0.1 F Input, Output Capacitor
XX
XX
05467-022
XX
5V/DIV
INPUT
OUTPUT
10
s/DIV
2.5V/DIV
Figure 28. ADR361 Turn-On Response Time at 5 V
XX
XX
05467-023
XX
400ns/DIV
OUTPUT
INPUT
5V/DIV
2.5V/DIV
Figure 29. ADR361 Turn-Off Response at 5 V
XX
XX
05467-034
XX
5V/DIV
2V/DIV
100
s/DIV
V
OUT
V
IN
Figure 30. ADR361 Turn-On Response, 0.1 F Output Capacitor
XX
XX
05467-035
XX
2V/DIV
5V/DIV
V
IN
V
OUT
2ms/DIV
Figure 31. ADR361 Turn-Off Response, 0.1 F Output Capacitor
ADR360/ADR361/ADR363/ADR364/ADR365/ADR366
Rev. 0 | Page 16 of 20
THEORY OF OPERATION
Band gap references are the high performance solution for low
supply voltage and low power voltage reference applications,
and the ADR36x family is no exception. The uniqueness of
these products lies in their architecture. The ideal zero TC band
gap voltage is referenced to the output not to ground (see
Figure 32). Therefore, if noise exists on the ground line, it is
greatly attenuated on V
OUT
. The band gap cell consists of the
PNP pair Q51 and Q52 running at unequal current densities.
The difference in V
BE
results in a voltage with a positive TC,
which is amplified by a ratio of
R54
R58
2
This PTAT voltage, combined with the V
BE
s of Q51 and Q52,
produces the stable band gap voltage.
Reduction in the band gap curvature is performed by the ratio
of the resistors R44 and R59, one of which is linearly
temperature dependent. Precision laser trimming and other
patented circuit techniques are used to further enhance the drift
performance.
SHDN
R60
Q51
R54
R61
R53
Q52
R58
R59
R44
R48
R49
Q1
V
IN
V
OUT (FORCE)
V
OUT (SENSE)
GND
05467-024
Figure 32. Simplified Schematic
Device Power Dissipation Considerations
The ADR36x family is capable of delivering load currents to
5 mA with an input voltage that ranges from 2.348 V (ADR360
only) to 18 V. When this device is used in applications with large
input voltages, care should be taken to avoid exceeding the
specified maximum power dissipation or junction temperature
because it could result in premature device failure. Use the
following formula to calculate a device's maximum junction
temperature or dissipation:
JA
A
J
D
T
T
P =
In this equation, T
J
and T
A
are, respectively, the junction and
ambient temperatures, P
D
is the device power dissipation, and
JA
is the device package thermal resistance.
ADR360/ADR361/ADR363/ADR364/ADR365/ADR366
Rev. 0 | Page 17 of 20
APPLICATIONS
BASIC VOLTAGE REFERENCE CONNECTION
The circuit in Figure 33 illustrates the basic configuration for
the ADR36x family. Decoupling capacitors are not required for
circuit stability. The ADR36x family is capable of driving
capacitive loads from 0 F to 10 F. However, a 0.1 F ceramic
output capacitor is recommended to absorb and deliver the
charge as is required by a dynamic load.
1
2
3
NC
GND
V
IN
ADR36x
5
4
TRIM
V
OUT
INPUT
0.1
F
OUTPUT
0.1
F
05467-025
Figure 33. Basic Configuration for the ADR36x Family
Stacking Reference ICs for Arbitrary Outputs
Some applications may require two reference voltage sources,
which are a combined sum of standard outputs. Figure 34 shows
how this stacked output reference can be implemented.
05467-026
NC
NC
GND
GND
V
IN
V
IN
ADR36x
ADR36x
TRIM
TRIM
V
OUT
V
OUT
1
1
2
2
3
3
5
5
4
4
V
OUT2
V
OUT1
V
IN
C1
0.1
F
C2
0.1
F
Figure 34. Stacking Voltage References with the ADR36x
Two reference ICs are used, and fed from an unregulated input,
V
IN
. The outputs of the individual ICs are connected in series,
which provides two output voltages, V
OUT1
and V
OUT2
. V
OUT1
is
the terminal voltage of U1, while V
OUT2
is the sum of this voltage
and the terminal voltage of U2. U1 and U2 are chosen for the
two voltages that supply the required outputs (see Table 10). For
example, if both U1 and U2 are ADR361s, V
OUT1
is 2.5 V and
V
OUT2
is 5.0 V.
Table 10. Output
U1/U2 V
OUT1
V
OUT2
ADR361/ADR365 2.5
7.5
ADR361/ADR361 2.5
5.0
ADR365/ADR361 5
7.5
A Negative Precision Reference Without Precision
Resistors
A negative reference is easily generated by adding an op amp,
A1, and is configured in Figure 35. V
OUTF
and V
OUTS
are at virtual
ground and, therefore, the negative reference can be taken
directly from the output of the op amp. The op amp must be
dual-supply, low offset, and rail-to-rail if the negative supply
voltage is close to the reference output.
05467-027
NC
GND
V
IN
ADR36x
TRIM
V
OUT
1
2
3
+
5
4
V
REF
V
DD
+V
DD
Figure 35. Negative Reference
ADR360/ADR361/ADR363/ADR364/ADR365/ADR366
Rev. 0 | Page 18 of 20
General Purpose Current Source
Many times in low power applications, the need arises for a
precision current source that can operate on low supply
voltages. The ADR36x can be configured as a precision current
source (see Figure 36). The circuit configuration illustrated is a
floating current source with a grounded load. The reference's
output voltage is bootstrapped across R
SET
, which sets the output
current into the load. With this configuration, circuit precision
is maintained for load currents ranging from the reference's
supply current, typically 150 A, to approximately 5 mA.
NC
GND
V
IN
ADR36x
TRIM
V
OUT
1
2
3
5
4
I
SY
I
SET
+ I
SY
I
SET
R1
P
1
+V
DD
RL
05467-028
Figure 36. Precision Current Source
Trim Terminal
The ADR36x trim terminal can be used to adjust the output
voltage over a nominal voltage. This feature allows a system
designer to trim system errors by setting the reference to a
voltage other than the standard voltage option. The resistor R1
is used for fine adjustment and can be omitted if desired. The
resistor values should be carefully chosen to ensure that the
maximum current drive of the part is not exceeded.
05467-029
1
2
3
5
4
+V
DD
NC
GND
V
IN
ADR36x
TRIM
V
OUT
V
OUT
R1
100k
POT
10k
R2
1k
Figure 37. ADR36x Trim Configuration
ADR360/ADR361/ADR363/ADR364/ADR365/ADR366
Rev. 0 | Page 19 of 20
OUTLINE DIMENSIONS
*COMPLIANT TO JEDEC STANDARDS MO-193-AB WITH
THE EXCEPTION OF PACKAGE HEIGHT AND THICKNESS.
PIN 1
1.60 BSC
2.80 BSC
1.90
BSC
0.95 BSC
0.20
0.08
0.60
0.45
0.30
8
4
0
0.50
0.30
0.10 MAX
SEATING
PLANE
*1.00 MAX
*0.90
0.87
0.84
2.90 BSC
5
4
1
2
3
Figure 38. 5-Lead Thin Small Outline Transistor Package [TSOT]
(UJ-5)
Dimensions shown in millimeters
ORDERING GUIDE
Output
Voltage Initial
Accuracy
Temperature
Coefficient
Models*
(V
O
)
(mV)
(%)
(ppm/C)
Package
Description
Package
Option
Temperature
Range
Branding
ADR360AUJZ-REEL7
1
2.048
6
0.29
25
TSOT
UJ-5
40C to +125C
R0C
ADR360BUJZ-REEL7
1
2.048
3
0.15
9
TSOT
UJ-5
40C to +125C
R0D
ADR361AUJZ-REEL7
1
2.5
6
0.24
25
TSOT
UJ-5
40C to +125C
R0E
ADR361BUJZ-REEL7
1
2.5
3
0.12
9
TSOT
UJ-5
40C to +125C
R0F
ADR363AUJZ-REEL7
1
3.0
6
0.2
25
TSOT
UJ-5
40C to +125C
R0G
ADR363BUJZ-REEL7
1
3.0
3
0.1
9
TSOT
UJ-5
40C to +125C
R0H
ADR364AUJZ-REEL7
1
4.096
8
0.2
25
TSOT
UJ-5
40C to +125C
R0J
ADR364BUJZ-REEL7
1
4.096
4
0.1
9
TSOT
UJ-5
40C to +125C
R0K
ADR365AUJZ-REEL7
1
5.0
8
0.16
25
TSOT
UJ-5
40C to +125C
R0L
ADR365BUJZ-REEL7
1
5.0
4
0.08
9
TSOT
UJ-5
40C to +125C
R0M
ADR366AUJZ-REEL7
1
3.3
8
0.25
25
TSOT
UJ-5
40C to +125C
R08
ADR366BUJZ-REEL7
1
3.3
4
0.125
9
TSOT
UJ-5
40C to +125C
R09
1
Z = Pb-free part
*3,000 pieces per reel
ADR360/ADR361/ADR363/ADR364/ADR365/ADR366
Rev. 0 | Page 20 of 20
NOTES
2005 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D0546704/05(0)