Data Sheet AD8202
Rev. H | Page 3 of 20
SPECIFICATIONS
SINGLE SUPPLY
T
OPR
= operating temperature range, V
S
= 5 V, unless otherwise noted, RTI = referred to input, VCM = common-mode voltage.
Table 1.
AD8202 SOIC AD8202 MSOP AD8202 Die
1
Parameter Conditions Min Typ Max Min Typ Max Min Typ Max Unit
SYSTEM GAIN
Initial 20 20 20 V/V
Error vs. Temperature 0.04 ≤ V
OUT
≤ 4.8 V dc, T
OPR
±0.3 ±0.3 ±0.3 %
Gain Drift T
OPR
±20 ±20 ±30 ppm/°C
VOLTAGE OFFSET
Initial Input Offset (RTI), T
OPR
±2 ±2 ±3 mV
Offset vs. Temperature V
CM
= 0 V, T
OPR
±10 ±15 ±15 μV/°C
INPUT
Input Impedance
Differential 260 325 390 260 325 390 260 325 390 kΩ
Common Mode 135 170 205 135 170 205 135 170 205 kΩ
CMV Continuous −6 +28 −6 +28 −6 +28 V
CMRR
2
V
CM
= −6 V to +28 V
f = dc to 1 kHz 82 82 82 dB
f = 10 kHz
3
80 80 80 dB
PREAMPLIFIER
Gain 10 10 10 V/V
Gain Error ±0.3 ±0.3 ±0.3 %
Output Voltage Range 0.02 4.8 0.02 4.8 0.02 4.8 V
Output Resistance 97 100 103 97 100 103 97 100 103 kΩ
OUTPUT BUFFER
Gain 2 2 2 V/V
Gain Error 0.04 ≤ V
OUT
≤ 4.8 V dc, T
OPR
±0.3 ±0.3 ±0.3 %
Output Voltage Range
4
0.04 4.8 0.04 4.8 0.04 4.8 V
Input Bias Current 40 40 40 nA
Output Resistance 2 2 2 Ω
DYNAMIC RESPONSE
System Bandwidth V
IN
= 0.1 V p-p; V
OUT
= 2.0 V p-p 30 50 30 50 30 50 kHz
Slew Rate V
IN
= 0.2 V dc; V
OUT
= 4 V step 0.28 0.28 0.28 V/μs
NOISE
0.1 Hz to 10 Hz 10 10 10 μV p-p
Spectral Density, 1 kHz (RTI) 275 275 275 nV/√Hz
POWER SUPPLY
Operating Range 3.5 12 3.5 12 3.5 12 V
Quiescent Current vs.
Temperature
V
O
= 0.1 V dc 0.25 1.0 0.25 1.0 0.25 1.0 mA
PSRR V
S
= 3.5 V to 12 V 75 83 75 83 75 83 dB
TEMPERATURE RANGE
For Specified Performance T
OPR
−40 +125 −40 +125 −40 +150 °C
1
Die is specified for operation from −40°C to +150°C ( T
OPR
for DIE).
2
Source imbalance <2 Ω.
3
The AD8202 preamplifier exceeds 80 dB CMRR at 10 kHz. However, because the signal is available only by way of a 100 kΩ resistor, even the small amount of pin-to-
pin capacitance between Pin 1, Pin 8 and Pin 3, Pin 4 might couple an input common-mode signal larger than the greatly attenuated preamplifier output. The effect of
pin-to-pin coupling can be neglected in all applications by using filter capacitors at Node 3.
4
The output voltage range of A2 assumes that Pin 3 (A1 output) and Pin 4 (A2 Input) are shorted together. A 25 kΩ load resistor was used for testing.
