
MAX400
Ultra-Low Offset
Voltage Operational Amplifier
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implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________ 5
2005 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products, Inc.
CMRR vs. FREQUENCY
MAX400
toc04
FREQUENCY (Hz)
CMRR
(dB)
10k
1k
100
10
70
80
90
100
110
120
130
60
1
100k
PSRR vs. FREQUENCY
MAX400
toc05
FREQUENCY (Hz)
1k
100
10
1.0
60
70
80
90
100
110
120
50
0.1
10k
OPEN-LOOP FREQUENCY RESPONSE
MAX400
toc06
FREQUENCY (Hz)
OPEN
LOOP
GAIN
(dB)
1M
100k
1
10
100
1k
10k
0
40
80
120
-40
0.1
10M
VS =
±15V
TA = +25
°C
OFFSET VOLTAGE CHANGE
DUE TO THERMAL SHOCK
MAX400
toc07
TIME (s)
ABSOLUTE
CHANGE
IN
INPUT
OFFSET
VOLTAGE
(
V)
80
60
0
20
40
5
10
15
20
25
30
0
-20
100
DEVICE IMMERSED IN
+70
°C OIL BATH
THERMAL SHOCK
RESPONSE BAND
VS =
±15V
TA = +25
°C
TA = +70
°C
INPUT BIAS CURRENT
vs. TEMPERATURE
MAX400
toc08
TEMPERATURE (
°C)
INPUT
BIAS
CURRENT
(nA)
100
-50
0
50
1
2
3
4
0
VS =
±15V
INPUT BIAS CURRENT
vs. DIFFERENTIAL INPUT VOLTAGE
MAX400
toc09
DIFFERENTIAL INPUT VOLTAGE (V)
NONINVERTING
INPUT
BIAS
CURRENT
(mA)
20
10
-20
-10
0
-20
-10
0
10
20
30
-30
30
AT
|VDIFF|
≤ 1.0V, |IB| ≤2nA
VS =
±15V
TA = +25
°C
Typical Operating Characteristics (continued)