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Электронный компонент: 6251B

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July 1998
1
MIC6251/6252
MIC6251/6252
Micrel
MIC6251/6252
IttyBittyTM GainBlockTM Amplifiers
Preliminary Information
General Description
The MIC6251 and MIC6252 are IttyBittyTM GainBlockTM
amplifiers for use as follows:
MIC6251 ................................ +2, +1, 1 gain amplifier
MIC6252 .................................. +0.5, +1 gain amplifier;
average value amplifier
The MIC6251 and MIC6252 amplifiers operate from 4V to
32V. Both can use single or split supplies. These amplifiers
feature internal, well-matched, gain-setting resistors and an
input common-mode range that includes the negative supply
(ground).
The MIC6251/2 is available in the tiny SOT-23-5 surface
mount package.
Features
4V to 32V operation
Small footprint package
Internally compensated
2MHz bandwidth
6V/
s typical slew rate
Short circuit protected
Applications
Analog building blocks
Summing amplifier
Gain block
Ordering Information
Part Number
Marking
Temperature
Range Package
MIC6251BM5
A51
40
C to +85
C
SOT-23-5
MIC6252BM5
A52
40
C to +85
C
SOT-23-5
Functional Configuration
3
2
1
20k
20k
20k
4
5
IN+
V
OUT
IN
V+
20k
MIC6251
3
2
1
20k
20k
20k
4
5
IN+
V
OUT
IN
V+
20k
MIC6252
Pin Configuration
Part
Identification
OUT
V+
IN
IN+
Axx
1
3
4
5
2
V
SOT-23-5 (M5)
Part Number
Identification
MIC6251BM5
A51
MIC6252BM5
A52
Micrel, Inc. 1849 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 http://www.micrel.com
IttyBitty and GainBlock are a trademarks of Micrel, Inc.
MIC6251/6252
Micrel
MIC6251/6252
2
July 1998
Electrical Characteristics (Differential Supply)
V
V+
= +15V, V
V
= 15V; V
CM
= 0V, Note 1; T
A
= 25
C, bold values indicate 40
C
T
A
+85
C, T
A
= T
J
; unless noted.
Symbol
Parameter
Condition
Min
Typ
Max
Units
G
E
Gain Error
MIC6251: A
V
= 2, V
O
=
10V
0.3
0.5
%
MIC6252: A
V
= 0.5, V
O
=
10V
0.3
0.5
%
G
NL
Gain Non-linearity
MIC6251: A
V
= 2, V
O
=
10V
0.01
%
MIC6252: A
V
= 0.5, V
O
=
10V
0.01
%
V
OS
Offset Voltage
MIC6251: Referred to output
4
14
mV
MIC6252: Referred to output
2
7
mV
TCV
OS
Average Offset Drift
7
V/
C
I
B
Input Bias Current
50
250
nA
V
CM
Input Voltage Range, Differential
Note 3
25
V
Input Volt. Range, Common Mode
13.5
13.8
V
CMRR
Common Mode Rejection Ratio
V
CM
= 27V, 13.5V to +13.5V
65
100
dB
PSRR
Power Supply Rejection Ratio
V
S
= 25V,
15V to
2.5V
65
110
dB
V
OUT
Maximum Output Voltage Swing
R
L
= 2k
12.5
14
V
B
W
Bandwidth
2
MHz
S
R
Slew Rate
6
V/
s
I
S
Supply Current
1.3
2.0
mA
General Note : Devices are ESD protected; however, handling precautions are recommended.
Note 1:
IN+ and IN pins on the MIC6252 are interchangeable.
Note 2:
Gain setting resistors are ratio-matched but have a
20% absolute tolerance
Note 3:
Limit input current to 1mA.
Note 4:
Human body model, 1.5k in series with 100pF.
Absolute Maximum Ratings
Supply Voltage (V
V+
V
V
) ............................. 36V or
18V
Differential Input Voltage (V
IN+
V
IN
) .......................
36V
Input Voltage (V
IN+
, V
IN
) ........................ V
V
0.3V to V
V+
Output Short Circuit Current Duration ...............................
Junction Temperature (T
J
) ........................................ 150
C
Storage Temperature (T
S
) ....................... 65
C to +150
C
Lead Temperature (soldering, 10 sec.) ..................... 260
C
ESD, Note 4 ............................................................... [TBD]
Operating Ratings
Supply Voltage .................................................... 4V to 32V
Ambient Temperature Range ..................... 40
C to +85
C
SOT-23-5 Thermal Resistance (
JA
) ..................... 325
C/W
Pin Description
Pin Number
Pin Name
Pin Function
1
OUT
Amplifier Output
2
V
Negative Supply: Negative supply for split supply application or ground for
single supply application.
3
IN+
Noninverting Input: See "Electrical Characteristics: Note 1."
4
IN
Inverting Input: See "Electrical Characteristics: Note 1."
5
V+
Positive Supply
July 1998
3
MIC6251/6252
MIC6251/6252
Micrel
Typical Characteristics
1.0
1.1
1.2
1.3
1.4
-40 -20
0
20
40
60
80 100
SUPPLY CURRENT (mA)
TEMPERATURE (
C)
Supply Current
vs. Temperature
V
S
=
15V
0
0.5
1.0
1.5
0
5
10
15
20
25
30
SUPPLY CURRENT (mA)
SUPPLY VOLTAGE (V)
Supply Current
vs. Supply Voltage
T
A
= 25
C
20
30
40
50
60
70
-40 -20
0
20
40
60
80 100
INPUT BIAS CURRENT (nA)
TEMPERATURE (
C)
Input Bias Current
vs. Temperature
V
S
=
15V
-25
-20
-15
-10
-5
0
5
10
0.01
0.1
1
10
100
GAIN (dB)
FREQUENCY (MHz)
MIC6251 Gain
vs. Frequency
G = +2
V
S
=
15V
T
A
= 25
C
G = +1
0
5
10
15
20
25
30
10
100
1000 3000
PEAK-TO-PEAK OUTPUT VOLTAGE (V)
FREQUENCY (kHz)
Undistorted Output Swing vs.
Frequency
V
S
=
15V
R
L
= 2k
G = +2
T
A
= 25
C
50
60
70
80
90
100
110
0.01
0.1
1
10
100
1000
CMRR (dB)
FREQUENCY (kHz)
Common-Mode Rejection Ratio
vs. Frequency
V
S
=
15V
G = +2
T
A
= 25
C
50
60
70
80
90
100
110
120
130
0.001 0.01
0.1
1
10
100
PSRR (dB)
FREQUENCY (kHz)
Power Supply Rejection Ratio
vs. Frequency
V
S
=
15V
T
A
= 25
C
+PSRR
-PSRR
40
45
50
55
60
65
-40 -20
0
20
40
60
80 100
SHORT CIRCUIT CURRENT (mA)
TEMPERATURE (
C)
Short Circuit Current
vs. Temperature
V
S
=
15V
MIC6251/6252
Micrel
MIC6251/6252
4
July 1998
+10V
MIC6251 Large-Signal Transient Response
10V
GND
V
S
=
15V
R
L
= 2k
C
L
= 10pF
G = +2
2
s/DIV
+10V
MIC6251 Large-Signal Transient Response
10V
GND
V
S
=
15V
R
L
= 2k
C
L
= 10pF
G = +1
2
s/DIV
+10V
MIC6251 Large-Signal Transient Response
10V
GND
V
S
=
15V
R
L
= 2k
C
L
= 10pF
G = 1
2
s/DIV
+5V
MIC6252 Large-Signal Transient Response
5V
GND
V
S
=
15V
R
L
= 2k
C
L
= 10pF
G = 0.5
2
s/DIV
+100mV
MIC6251 Small-Signal Transient Response
100mV
GND
V
S
=
15V
R
L
= 2k
C
L
= 100pF
G = +2
500ns/DIV
July 1998
5
MIC6251/6252
MIC6251/6252
Micrel
NOISE VOLTAGE (4
V/DIV)
MIC6251/2 0.1Hz to 10Hz Noise
Gain = +1
VS =
15V
1s/DIV
NOISE VOLTAGE (5
V/DIV)
MIC6251/2 Wideband Noise
Gain +1
V
S
=
15V
5ms/DIV