Datasheet

AD8237 Data Sheet
Rev. 0 | Page 6 of 28
Parameter Test Conditions/Comments Min Typ Max Unit
GAIN
2
G = 1 + (R2/R1)
Gain Range
3
1 1000 V/V
Gain Error V
OUT
= 0.2 V to 1.6 V, G = 1 to G = 1000 0.005 %
Gain Error vs. V
CM
15 ppm/V
Gain vs. Temperature
T
A
= −40°C to +125°C
0.5
ppm/°C
Gain Nonlinearity V
OUT
= 0.2 V to 1.6 V
G = 1, G = 10 3 ppm
G = 100 6 ppm
G = 1000 10 ppm
OUTPUT
Output Swing
R
L
= 10 kΩ to Midsupply T
A
= +25°C −V
S
+ 0.05 +V
S
− 0.05 V
T
A
= −40°C to 125°C −V
S
+ 0.07 +V
S
− 0.07 V
R
L
= 100 kΩ to Midsupply
T
A
= +25°C
−V
S
+ 0.02
+V
S
− 0.02
V
T
A
= −40°C to 125°C −V
S
+ 0.03 +V
S
− 0.03 V
Short-Circuit Current 4 mA
POWER SUPPLY
Operating Range 1.8 5.5 V
Quiescent Current T
A
= +25°C 115 130 µA
T
A
= −40°C to +125°C 150 µA
TEMPERATURE RANGE
Specified −40 +125 °C
1
Specifications apply to input voltages between 0 V and 1.8 V. When measuring voltages beyond the supplies, there is additional offset error, bias currents increase,
and input impedance decreases, especially at higher temperatures.
2
For G > 1, errors from the external resistors, R1 and R2, must be added to these specifications, including error from the FB pin bias current.
3
The AD8237 has only been characterized for gains of 1 to 1000; however, higher gains are possible.