Datasheet

Data Sheet AD8205
Rev. | Page 3 of 12
SPECIFICATIONS
T
A
= operating temperature range, V
S
= 5 V, unless otherwise noted.
Table 1.
Parameter Test Conditions/Comments
Y and W Grade H Grade
Unit Min Typ Max Min Typ Max
GAIN
Initial 50 50 V/V
Accuracy V
O
≥ 0.1 V dc, 25°C ±1 ±1 %
Accuracy Over Temperature Specified temperature range ±1.2 ±1.2 %
Gain vs. Temperature ±30 ±30 ppm/°C
VOLTAGE OFFSET
Offset Voltage (RTI)
1
25°C ±2 ±2 mV
Over Temperature (RTI)
1
Specified temperature range ±4.5 ±4.5 mV
Offset Drift 15 15 µV/°C
INPUT
Input Impedance
Differential 400 400 kΩ
Common Mode 200 200 kΩ
Input Voltage Range Common mode, continuous −2 65 −2 65 V
Differential
2
100 100 mV
Common-Mode Rejection 25°C, f = dc to 20 kHz
3
78 86 78 86 dB
Operating temperature range,
f = dc to 20 kHz
3
76 80 76 80 dB
OUTPUT
Output Voltage Range R
L
= 25 kΩ 0.05 4.8 0.05 4.8 V
Output Resistance
2
2
Ω
DYNAMIC RESPONSE
Small Signal −3 dB Bandwidth 50 50 kHz
Slew Rate 0.5 0.5 V/µs
NOISE
0.1 Hz to 10 Hz, RTI 20 20 µV p-p
Spectral Density, 1 kHz (RTI)
1
0.5 0.5 µV/√Hz
OFFSET ADJUSTMENT
Ratiometric Accuracy
4
Divider to supplies 0.497 0.503 0.497 0.503 V/V
Accuracy, RTO Voltage applied to V
REF
1 and
V
REF
2 in parallel
±2 ±2 mV/V
Output Offset Adjustment Range V
S
= 5 V 0.05 4.8 0.05 4.8 V
VREF Divider Resistor Values 24 32 40 24 32 40 kΩ
POWER SUPPLY
Operating Range 4.5 5.5 4.5 5.5 V
Quiescent Current Over Temperature V
O
= 0.1 V dc 2 2.2 mA
Power Supply Rejection Ratio 70 70 dB
Temperature Range
For Specified Performance Operating temperature range −40 +125 −40 +150 °C
1
RTI is referred to input.
2
Input voltage range = ±50 mV with half-scale offset.
3
Source imbalance < 2 Ω.
4
The offset adjustment is ratiometric to the power supply when V
REF
1 and V
REF
2 are used as a divider between the supplies.
D