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AD620–SPECIFICATIONS
(Typical @ +25؇C, V
S
=
؎
15 V, and R
L
= 2 k⍀, unless otherwise noted)
AD620A AD620B AD620S
1
Model Conditions Min Typ Max Min Typ Max Min Typ Max Units
GAIN G = 1 + (49.4 k/R
G
)
Gain Range 1 10,000 1 10,000 1 10,000
Gain Error
2
V
OUT
= ±10 V
G = 1 0.03 0.10 0.01 0.02 0.03 0.10 %
G = 10 0.15 0.30 0.10 0.15 0.15 0.30 %
G = 100 0.15 0.30 0.10 0.15 0.15 0.30 %
G = 1000 0.40 0.70 0.35 0.50 0.40 0.70 %
Nonlinearity, V
OUT
= –10 V to +10 V,
G = 1–1000 R
L
= 10 kΩ 10 40 10 40 10 40 ppm
G = 1–100 R
L
= 2 kΩ 10 95 10 95 10 95 ppm
Gain vs. Temperature
G =1 10 10 10 ppm/°C
Gain >1
2
–50 –50 –50 ppm/°C
VOLTAGE OFFSET (Total RTI Error = V
OSI
+ V
OSO
/G)
Input Offset, V
OSI
V
S
= ±5 V to ±15 V 30 125 15 50 30 125 µV
Over Temperature V
S
= ±5 V to ±15 V 185 85 225 µV
Average TC V
S
= ±5 V to ±15 V 0.3 1.0 0.1 0.6 0.3 1.0 µV/°C
Output Offset, V
OSO
V
S
= ±15 V 400 1000 200 500 400 1000 µV
V
S
= ±5 V 1500 750 1500 µV
Over Temperature V
S
= ±5 V to ±15 V 2000 1000 2000 µV
Average TC V
S
= ±5 V to ±15 V 5.0 15 2.5 7.0 5.0 15 µV/°C
Offset Referred to the
Input vs.
Supply (PSR) V
S
= ±2.3 V to ±18 V
G = 1 80 100 80 100 80 100 dB
G = 10 95 120 100 120 95 120 dB
G = 100 110 140 120 140 110 140 dB
G = 1000 110 140 120 140 110 140 dB
INPUT CURRENT
Input Bias Current 0.5 2.0 0.5 1.0 0.5 2 nA
Over Temperature 2.5 1.5 4 nA
Average TC 3.0 3.0 8.0 pA/°C
Input Offset Current 0.3 1.0 0.3 0.5 0.3 1.0 nA
Over Temperature 1.5 0.75 2.0 nA
Average TC 1.5 1.5 8.0 pA/°C
INPUT
Input Impedance
Differential 10ʈ210ʈ210ʈ2GΩʈpF
Common-Mode 10ʈ210ʈ210ʈ2GΩʈpF
Input Voltage Range
3
V
S
= ±2.3 V to ±5 V –V
S
+ 1.9 +V
S
– 1.2 –V
S
+ 1.9 +V
S
– 1.2 –V
S
+ 1.9 +V
S
– 1.2 V
Over Temperature –V
S
+ 2.1 +V
S
– 1.3 –V
S
+ 2.1 +V
S
– 1.3 –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
S
+ 1.9 +V
S
– 1.4 –V
S
+ 1.9 +V
S
– 1.4 V
Over Temperature –V
S
+ 2.1 +V
S
– 1.4 –V
S
+ 2.1 +V
S
– 1.4 –V
S
+ 2.3 +V
S
– 1.4 V
Common-Mode Rejection
Ratio DC to 60 Hz with
I kΩ Source Imbalance V
CM
= 0 V to ±10 V
G = 1 7390 8090 7390 dB
G = 10 93 110 100 110 93 110 dB
G = 100 110 130 120 130 110 130 dB
G = 1000 110 130 120 130 110 130 dB
OUTPUT
Output Swing R
L
= 10 kΩ,
V
S
= ±2.3 V to ±5 V –V
S
+ 1.1 +V
S
– 1.2 –V
S
+ 1.1 +V
S
– 1.2 –V
S
+ 1.1 +V
S
– 1.2 V
Over Temperature –V
S
+ 1.4 +V
S
– 1.3 –V
S
+ 1.4 +V
S
– 1.3 –V
S
+ 1.6 +V
S
– 1.3 V
V
S
= ±5 V to ±18 V –V
S
+ 1.2 +V
S
– 1.4 –V
S
+ 1.2 +V
S
– 1.4 –V
S
+ 1.2 +V
S
– 1.4 V
Over Temperature –V
S
+ 1.6 +V
S
– 1.5 –V
S
+ 1.6 +V
S
– 1.5 –V
S
+ 2.3 +V
S
– 1.5 V
Short Current Circuit ±18 ±18 ±18 mA
REV. E
–2–