Datasheet

REV. A–4–
AD8225
Parameter Conditions Min Typ Max Unit
GAIN
Gain 5V/V
Gain Error –0.1 +0.05 +0.1 %
Nonlinearity 2 10 ±ppm
vs. Temperature 1 5 ±ppm/°C
OFFSET VOLTAGE (RTI)
Offset Voltage 150 375 ±µV
vs. Temperature 2 ±µV/°C
vs. Supply 90 100 dB
INPUT
Input Operating Impedance
Differential 10
储 2GΩ 储 pF
Common Mode 10
储 2GΩ 储 pF
Input Voltage Range 1.6 V
S
– 1.05 V
(Common-Mode)
vs. Temperature 1.7 V
S
– 1.0 V
Input Bias Current 0.5 1.2 nA
vs. Temperature 3 pA/°C
Input Offset Current 0.15 0.5 nA
vs. Temperature 1.5 pA/°C
Common-Mode Rejection Ratio 86 94 dB
T
A
= T
MIN
to T
MAX
83 dB
f = 10 kHz* 80 dB
OUTPUT
Operating Voltage Range R
L
= 2 kΩ 0.8 V
S
– 1.05 V
vs. Temperature 0.9 V
S
– 1.2 V
Operating Voltage Range R
L
= 10 kΩ 0.8 V
S
– 1.0 V
vs. Temperature 0.9 V
S
– 1.0 V
Short Circuit Current 18 mA
DYNAMIC RESPONSE
Small Signal –3 dB Bandwidth 900 kHz
Full Power Bandwidth V
OUT
= 3.2 V p-p 420 kHz
Settling Time (0.01%) 2 V Step 3.3 µs
Settling Time (0.001%) 2 V Step 5.1 µs
Slew Rate 5 V/µs
NOISE (RTI)
Voltage 0.1 Hz to 10 Hz 1.5 µV p-p
Spectral Density, 1 kHz 45 nV/√Hz
Current 0.1 Hz to 10 Hz 4 pA p-p
Spectral Density, 1 kHz 50 fA/√Hz
REFERENCE INPUT
R
IN
18 kΩ
I
IN
60 µA
Voltage Range 0.4 V
S
– 0.9 V
Gain to Output 0.999 1 1.001
POWER SUPPLY
Operating Range 3.4 36 V
Quiescent Current 1.05 1.2 mA
TEMPERATURE RANGE
For Specified Performance –40 +85 °C
*Pin 1 connected to Pin 4. See Applications section.
Specifications subject to change without notice.
SPECIFICATIONS
(T
A
= 25C, V
S
= 5 V, R
L
= 2 k, unless otherwise noted.)