Datasheet

AD8235
Rev. 0 | Page 6 of 20
Parameter Test Conditions Min Typ Max Unit
GAIN
Gain Range G = 5 + 420 kΩ/R
G
5 200
1
V/V
Gain Error V
S
= ±0.9 V, V
REF
= 0 V, V
OUT
= −0.6 V to +0.6 V
G = 5 0.005 0.05 %
G = 10 0.03 0.2 %
G = 100 0.06 0.2 %
G = 200 0.15 0.3 %
Nonlinearity R
L
= 10 kΩ or 100 kΩ
G = 5 1 10 ppm
G = 10 1 10 ppm
G = 100 0.5 10 ppm
G = 200 0.4 10 ppm
Gain vs. Temperature −40°C to +125°C
G = 5 0.35 1.5 ppm/°C
G > 10 −50 ppm/°C
INPUT
Differential Impedance 440||1.6 GΩ||pF
Common-Mode Impedance 110||6.2 GΩ||pF
Input Voltage Range −40°C to +125°C 0 +V
S
V
OUTPUT
Output Voltage High, V
OH
R
L
= 100 kΩ 1.78 1.79 V
−40°C to +125°C 1.78 V
R
L
= 10 kΩ 1.65 1.75 V
−40°C to +125°C 1.65 V
Output Voltage Low, V
OL
R
L
= 100 kΩ 2 5 mV
−40°C to +125°C 5 mV
R
L
= 10 kΩ 12 25 mV
−40°C to +125°C 25 mV
Short-Circuit Limit, I
SC
±6 mA
REFERENCE INPUT
R
IN
−IN, +IN = 0 V 210 kΩ
I
IN
20 nA
Voltage Range −V
S
+V
S
V
Gain to Output 1 V/V
SHUTDOWN OPERATION
Shutdown Current 6 500 nA
−40°C to +125°C 1.5 μA
SDN PIN INPUT VOLTAGE RANGE
V
OH
−40°C to +125°C +V
S
− 0.5 +V
S
V
V
OL
−40°C to +125°C −V
S
−V
S
+ 0.5 V
TEMPERATURE RANGE
For Specified Performance −40 +125 °C
1
Although the specifications of the AD8235 list only low to midrange gains, gains can be set beyond 200.