Datasheet

AD8420 Data Sheet
Rev. 0 | Page 4 of 28
Parameter Test Conditions/Comments Min Typ Max Unit
GAIN
2
G = 1 + (R2/R1)
Gain Range 1 1000 V/V
Gain Error
G = 1 V
OUT
= 0.1 V to 1.1 V, V
REF
= 0.1 V 0.02 %
G = 10 to 1000 V
OUT
= 0.2 V to 4.8 V 0.05 0.1 %
Gain vs. Temperature T
A
= −40°C to +85°C 10 ppm/°C
OUTPUT
Output Swing V
S
= 5 V, R
L
= 10 kΩ to midsupply
V
S
= ±5 V, R
L
= 20 kΩ to ground
T
A
= +25°C −V
S
+ 0.1 +V
S
− 0.15 V
T
A
= +85°C −V
S
+ 0.1 +V
S
− 0.2 V
T
A
= −40°C −V
S
+ 0.1 +V
S
− 0.15 V
Short-Circuit Current 10 mA
POWER SUPPLY
Operating Range Single-supply operation
3
2.7 36 V
Quiescent Current V
S
= 5 V
T
A
= +25°C 55 70 80 μA
T
A
= +85°C 95 μA
T
A
= −40°C 65 μA
TEMPERATURE RANGE
Specified −40 +85 °C
Operational
4
−40 +125 °C
1
The input stage uses PNP transistors; therefore, input bias current always flows out of the part.
2
For G > 1, errors from External Resistor R1 and External Resistor R2 should be considered in addition to these specifications, including error from FB pin bias current.
3
Minimum supply voltage indicated for V
+IN
, V
−IN
, and V
REF
= 0 V.
4
See the Typical Performance Characteristics section for operation between 85°C and 125°C.