Datasheet

Data Sheet AD622
Rev. E | Page 3 of 16
SPECIFICATIONS
T
A
= 25°C, V
S
= ±15 V, and R
L
= 2 kΩ typical, unless otherwise noted.
Table 2.
Parameter Conditions Min Typ Max Unit
GAIN G = 1 + (50.5 k/R
G
)
Gain Range
1
1000
Gain Error
1
V
OUT
= ±10 V
G = 1 0.05 0.15 %
G = 10 0.2 0.50 %
G = 100 0.2 0.50 %
G = 1000
0.2
0.50
%
Nonlinearity V
OUT
= ±10 V
G = 1 to 1000 R
L
= 10 kΩ 10 ppm
G = 1 to 100 R
L
= 2 kΩ 10 ppm
Gain vs. Temperature Gain = 1 10 ppm/°C
Gain > 1
1
−50 ppm/°C
VOLTAGE OFFSET Total RTI Error = V
OSI
+ V
OSO
/G
Input Offset, V
OSI
V
S
= ±5 V to ±15 V 60 125 µV
Average Temperature Coefficient V
S
= ±5 V to ±15 V 1.0 µV/°C
Output Offset, V
OSO
V
S
= ±5 V to ±15 V
600
1500
µV
Average Temperature Coefficient V
S
= ±5 V to ±15 V 15 µV/°C
Offset Referred to Input vs. Supply (PSR) V
S
= ±5 V to ±15 V
G = 1 80 100 dB
G = 10 95 120 dB
G = 100
110
140
dB
G = 1000 110 140 dB
INPUT CURRENT
Input Bias Current
2.0
5.0
nA
Average Temperature Coefficient 3.0 pA/°C
Input Offset Current 0.7 2.5 nA
Average Temperature Coefficient 2.0 pA/°C
INPUT
Input Impedance
Differential 10||2 G Ω||pF
Common Mode 10||2 GΩ||pF
Input Voltage Range
2
V
S
= ±2.6 V to ±5 V
−V
S
+ 1.9
+V
S
– 1.2
V
Over Temperature −V
S
+ 2.1 +V
S
– 1.3 V
V
S
= ±5 V to ±18 V −V
S
+ 1.9 +V
S
– 1.4 V
Over Temperature −V
S
+ 2.1 +V
S
– 1.4 V
Common-Mode Rejection Ratio
DC to 60 Hz with 1 kΩ Source Imbalance
V
CM
= 0 V to ±10 V
G = 1
66
78
dB
G = 10 86 98 dB
G = 100 103 118 dB
G = 1000 103 118 dB
OUTPUT
Output Swing R
L
= 10 kΩ
V
S
= ±2.6 V to ±5 V −V
S
+ 1.1 +V
S
– 1.2 V
Over Temperature −V
S
+ 1.4 +V
S
– 1.3 V
V
S
= ±5 V to ±18 V −V
S
+ 1.2 +V
S
– 1.4 V
Over Temperature −V
S
+ 1.6 +V
S
– 1.5 V
Short Current Circuit ±18 mA