Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
Advanced
AMS1009
Monolithic
VOLTAGE REFERENCE DIODE
Systems
FEATURES
APPLICATIONS
5 mV (
0.2%) Max. Initial Tolerance (A grade)
Power Supplies
Wide Operating Current Range
Instrumentation
Low Voltage Reference 2.5V
8 Bit A/D, D/A Reference
Max. 0.6
Dynamic Impedance (A grade)
Current Loop Measurement and Control Systems
Low Temperature Coefficient
Reference for 5V Systems
GENERAL DESCRIPTION
The AMS1009 is a precision band-gap voltage reference diode. This voltage reference features a very low dynamic impedance
and good temperature coefficient, operating over a wide current range of 400
A to 10mA. On-chip trimming is used to
provide tight tolerance and minimize temperature drift. A third terminal allows the reference voltage to be adjusted to
5% to
calibrate out system errors.
The AMS1009 is used as a precision 2.5V low voltage reference for digital voltmeters, power supplies or op amp circuitry,
and the 2.5V make it easy to obtain a stable reference from 5V logic supplies.
The AMS1009 is available in TO-92 and SO-8 packages operating over a 0
C to 70
C temperature range.
ORDERING INFORMATION:
TOL.
PACKAGE TYPE
OPERATING
TO-92
8 LEAD SOIC
TEMPERATURE RANGE
5mV
AMS1009AN
AMS1009AS
0 to 70
C
10mV AMS1009BN
AMS1009BS
0 to 70
C
PIN CONNECTIONS
TO-92
8L SOIC
Plastic Package (N)
SO Package (S)
1
2
3
1
2
8
4
3
7
5
6
N/C ADJ
N/C
N/C N/C
N/C
+
-
Bottom View
Top View
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
AMS1009
ABSOLUTE MAXIMUM RATINGS (Note 1)
Reverse Current
20mA
Soldering information
Forward Current
10mA
TO-92 package: 10 sec.
260
C
Operating Temperature Range
0
C to 70
C
SOIC package: Vapor phase (60 sec)
215
C
Storage temperature
-55
C to +150
C
Infrared (15 sec.)
220
C
ELECTRICAL CHARACTERISTICS
Electrical Characteristics at I
R
= 1 mA, and T
A
= +25C unless otherwise specified.
Parameter
Conditions
AMS1009A
Min Typ Max
AMS1009B
Min Typ Max
Units
Reverse Breakdown Voltage
2.495
2.500
2.505
2.490
2.500
2.510
V
Reverse Dynamic Impedance
0.2
0.4
0.6
1.4
0.2
0.4
1.0
1.4
Reverse Breakdown Voltage
Change with current
400
A
I
R
10mA
2.6
3
10
12
2.6
3
10
12
mV
Temperature Stability
Average Temperature Coeff.
T
MIN
T
A
T
MAX
0
C
T
A
70
C
1.8
15
4
25
1.8
15
4
25
mV
ppm/C
Long Term Stability (Note 4)
T
A
=25C.1C
T = 1000 Hr
20
20
ppm
Note 1:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics
.
The
guaranteed specifications apply only for the test conditions listed.
Note 2:
For elevated temperature operation, T
j
max is +125C
Thermal Resistance
TO-92
SO-8
JA
(junction to ambient)
170C/W (0.125" leads)
165C/W
Note 3:
Parameters identified with boldface type apply at temperature extremes. All other numbers apply at T
A
= T
J
= 25C.
Note 4:
The average temperature coefficient is defined as the maximum deviation of reference voltage at all measured temperatures between the operating T
MAX
and T
MIN
, divided by T
MAX
- T
MIN
. The measured temperatures are 0
C, 25
C and 70
C.
TYPICAL PERFORMANCE CHARACTERISTICS
0.5
1.0
1.4
1.8
2.2
10
-5
10
-1
2.6
REVERSE VOLTAGE (V)
REVERSE CURRENT (
A)
10
-4
Reverse Characteristics
T
J
=70 C
T
J
= 0 C
T
J
=25 C
0
4
8
12
16
0
4
2
Reverse Voltage Change
20
REVERSE CURRENT (mA)
REVERSE VOLTAGE CHANGE (mV)
1
5
3
10
-2
10
-3
0
10
0
1.0
2.5
0
1
20
TIME (
s)
Response Time
VOLTAGE SWING (V)
2.0
~
~
5k
OUTPUT
INPUT
OUTPUT
INPUT
~
~
~~
~~
~~
~~
4
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
AMS1009
TYPICAL APPLICATIONS
2.5V Reference
Wide Supply Range, Adjustable Reference
*Does not affect Temperature Coefficient
Low Temperature Coefficient Power Regulator
PACKAGE DIMENSIONS
inches (millimeters) unless otherwise noted.
3 LEAD TO-92 PLASTIC PACKAGE (N)
10k*
TRIM
OUTPUT
AMS1009
V
IN
= 5V TO 35V
3.6k
10k
OUTPUT
AMS1009
+3.6V TO +40V
62
LM334
R
V
+
V
-
IN
ADJ
OUT
AMS1085
V
IN
AMS1009
1.2k
375
2k
V
OUT
0.1400.010
(3.5560.127)
0.0600.010
(1.5240.254)
0.0150.002
(0.3810.051)
0.0160.003
(0.4060.076)
0.0500.005
(1.2700.127)
0.0600.005
(1.5240.127)
DIA
0.1800.005
(4.5720.127)
0.1800.005
(4.5720.127)
0.050
(1.270)
MAX
0.500
(12.70)
MIN
UNCONTROLLED
LEAD DIMENSIONS
10
NOM
5 NOM
N (TO-92 ) AMS DRW# 042391
0.90
(2.286)
NOM
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
AMS1009
PACKAGE DIMENSIONS
inches (millimeters) unless otherwise noted (Continued).
8 LEAD SOIC PLASTIC PACKAGE (S)
0-8 TYP
0.010-0.020
(0.254-0.508)
S (SO-8 ) AMS DRW# 042293
x 45
0.016-0.050
(0.406-1.270)
0.008-0.010
(0.203-0.254)
0.004-0.010
(0.101-0.254)
0.014-0.019
(0.355-0.483)
0.053-0.069
(1.346-1.752)
0.050
(1.270)
TYP
0.150-0.157**
(3.810-3.988)
0.228-0.244
(5.791-6.197)
0.189-0.197*
(4.801-5.004)
*DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
**DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
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