Datasheet

AD822
REV. A
–5–
(V
S
= 0, 3 volts @ T
A
= +258C, V
CM
= 0 V, V
OUT
= 0.2 V unless otherwise noted)
AD822A-3 V
Parameter Conditions Min Typ Max Units
DC PERFORMANCE
Initial Offset 0.2 1 mV
Max Offset over Temperature 0.5 1.5 mV
Offset Drift 1 µV/°C
Input Bias Current V
CM
= 0 V to +2 V 2 25 pA
at T
MAX
0.5 5 nA
Input Offset Current 220 pA
at T
MAX
0.5 nA
Open-Loop Gain V
O
= 0.2 V to 2 V
R
L
= 100 k 300 1000 V/mV
T
MIN
to T
MAX
300 V/mV
R
L
= 10 k 60 150 V/mV
T
MIN
to T
MAX
60 V/mV
R
L
= 1 k 10 30 V/mV
T
MIN
to T
MAX
8 V/mV
NOISE/HARMONIC PERFORMANCE
Input Voltage Noise
0.1 Hz to 10 Hz 2 µV p-p
f = 10 Hz 25 nV/√Hz
f = 100 Hz 21 nV/√Hz
f = 1 kHz 16 nV/√Hz
f = 10 kHz 13 nV/√Hz
Input Current Noise
0.1 Hz to 10 Hz 18 fA p-p
f = 1 kHz 0.8 fA/√Hz
Harmonic Distortion R
L
= 10 k to 1.5 V
f = 10 kHz V
O
= ±1.25 V –92 dB
DYNAMIC PERFORMANCE
Unity Gain Frequency 1.5 MHz
Full Power Response V
O
p-p = 2.5 V 240 kHz
Slew Rate 3V/µs
Settling Time
to 0.1% V
O
= 0.2 V to 2.5 V 1 µs
to 0.01% 1.4 µs
MATCHING CHARACTERISTICS
Initial Offset 1mV
Max Offset Over Temperature 2mV
Offset Drift 2 µV/°C
Input Bias Current 10 pA
Crosstalk @ f = 1 kHz R
L
= 5 kΩ –130 dB
f = 100 kHz –93 dB
INPUT CHARACTERISTICS
Common-Mode Voltage Range
2
–0.2 2 V
T
MIN
to T
MAX
–0.2 2 V
CMRR V
CM
= 0 V to +1 V 60 74 dB
T
MIN
to T
MAX
60 dB
Input Impedance
Differential 10
13
||0.5 Ω||pF
Common Mode 10
13
||2.8 Ω||pF
OUTPUT CHARACTERISTICS
Output Saturation Voltage
3
V
OL
–V
EE
I
SINK
= 20 µA57mV
T
MIN
to T
MAX
10 mV
V
CC
–V
OH
I
SOURCE
= 20 µA1014mV
T
MIN
to T
MAX
20 mV
V
OL
–V
EE
I
SINK
= 2 mA 40 55 mV
T
MIN
to T
MAX
80 mV
V
CC
–V
OH
I
SOURCE
= 2 mA 80 110 mV
T
MIN
to T
MAX
160 mV
V
OL
–V
EE
I
SINK
= 10 mA 200 400 mV
T
MIN
to T
MAX
400 mV
V
CC
–V
OH
I
SOURCE
= 10 mA 500 1000 mV
T
MIN
to T
MAX
1000 mV
Operating Output Current 15 mA
T
MIN
to T
MAX
12 mA
Capacitive Load Drive 350 pF
POWER SUPPLY
Quiescent Current T
MIN
to T
MAX
1.24 1.6 mA
Power Supply Rejection V
S
+ = 3 V to 15 V 70 80 dB
T
MIN
to T
MAX
70 dB