Datasheet

AD8221
Rev. C | Page 6 of 24
Parameter Conditions
ARM Grade
Unit Min Typ Max
REFERENCE INPUT
R
IN
20 kΩ
I
IN
V
IN+
, V
IN−
, V
REF
= 0 50 60 µA
Voltage Range −V
S
+V
S
V
Gain to Output 1 ± 0.0001 V/V
POWER SUPPLY
Operating Range V
S
= ±2.3 V to ±18 V ±2.3 ±18 V
Quiescent Current 0.9 1 mA
Over Temperature T = −40°C to +85°C 1 1.2 mA
DYNAMIC RESPONSE
Small Signal –3 dB Bandwidth
G = 1 825 kHz
G = 10 562 kHz
G = 100 100 kHz
G = 1000 14.7 kHz
Settling Time 0.01% 10 V step
G = 1 to 100 10 µs
G = 1000 80 µs
Settling Time 0.001% 10 V step
G = 1 to 100 13 µs
G = 1000 110 µs
Slew Rate G = 1 1.5 2 V/µs
G = 5 to 100 2 2.5 V/µs
GAIN G = 1 + (49.4 kΩ/R
G
)
Gain Range 1 1000 V/V
Gain Error V
OUT
± 10 V
G = 1 0.1 %
G = 10 0.3 %
G = 100 0.3 %
G = 1000 0.3 %
Gain Nonlinearity V
OUT
= −10 V to +10 V
G = 1 to 10 R
L
= 10 kΩ 5 15 ppm
G = 100 R
L
= 10 kΩ 7 20 ppm
G = 1000 R
L
= 10 kΩ 10 50 ppm
G = 1 to 100 R
L
= 2 kΩ 15 100 ppm
Gain vs. Temperature
G = 1 3 10 ppm/°C
G > 1
2
–50 ppm/°C
INPUT
Input Impedance
Differential 100||2 GΩ/pF
Common Mode 100||2 GΩ/pF
Input Operating Voltage Range
3
V
S
= ±2.3 V to ±5 V –V
S
+ 1.9 +V
S
− 1.1 V
Over Temperature T = −40°C to +85°C –V
S
+ 2.0 +V
S
− 1.2 V
Input Operating Voltage Range V
S
= ±5 V to ±18 V –V
S
+ 1.9 +V
S
− 1.2 V
Over Temperature T = −40°C to +85°C –V
S
+ 2.0 +V
S
− 1.2 V
OUTPUT R
L
= 10 kΩ
Output Swing V
S
= ±2.3 V to ±5 V –V
S
+ 1.1 +V
S
− 1.2 V
Over Temperature T = −40°C to +85°C –V
S
+ 1.4 +V
S
− 1.3 V
Output Swing V
S
= ±5 V to ±18 V –V
S
+ 1.2 +V
S
− 1.4 V
Over Temperature T = −40°C to +85°C –V
S
+ 1.6 +V
S
− 1.5 V
Short-Circuit Current 18 mA