AD628
SPECIFICATIONS
TA = 25°C, VS = 15 V, RL = 2 kΩ, REXT1 = 10 kΩ, REXT2 = ∞, VREF = 0 V, unless otherwise noted.
Table 1.
AD628AR
Typ
AD628ARM
Typ
Parameter
Conditions
Min
Max
Min
Max
Unit
DIFFERENTIAL AND OUTPUT AMPLIFIER
Gain Equation
Gain Range
G = +0.1 (1 + REXT1/REXT2
See Figure 29
VCM = 0 V; RTI of input pins2;
output amplifier G = +1
)
V/V
V/V
mV
0.11
−1.5
100
+1.5
0.11
−1.5
100
+1.5
Offset Voltage
vs. Temperature
CMRR3
4
8
4
8
μV/°C
dB
RTI of input pins;
G = +0.1 to +100
75
75
500 Hz
75
70
75
70
dB
dB
(μV/V)/°C
dB
Minimum CMRR Over Temperature −40°C to +85°C
vs. Temperature
1
94
4
1
94
4
PSRR (RTI)
VS = 10 V to 18 V
77
77
Input Voltage Range
Common Mode
Differential
−120
−120
+120
+120
−120
−120
+120
+120
V
V
Dynamic Response
Small Signal Bandwidth −3 dB
Full Power Bandwidth
Settling Time
G = +0.1
600
5
600
5
kHz
kHz
μs
G = +0.1, to 0.01%, 100 V step
40
40
Slew Rate
0.3
0.3
V/μs
Noise (RTI)
Spectral Density
1 kHz
0.1 Hz to 10 Hz
300
15
300
15
nV/√Hz
μV p-p
DIFFERENTIAL AMPLIFIER
Gain
0.1
0.1
V/V
Error
−0.1
−1.5
+0.01 +0.1
−0.1
−1.5
+0.01 +0.1
%
vs. Temperature
Nonlinearity
vs. Temperature
Offset Voltage
vs. Temperature
Input Impedance
Differential
5
5
5
5
ppm/°C
ppm
ppm
mV
3
10
+1.5
8
3
10
+1.5
8
RTI of input pins
μV/°C
220
55
220
55
kΩ
kΩ
dB
Common Mode
CMRR4
RTI of input pins;
G = +0.1 to +100
75
75
500 Hz
75
70
75
70
dB
dB
Minimum CMRR Over Temperature −40°C to +85°C
vs. Temperature
Output Resistance
Error
1
10
4
1
10
4
(μV/V)/°C
kΩ
%
−0.1
+0.1
−0.1
+0.1
Rev. G | Page 3 of 20
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