Datasheet AD822 (Analog Devices)

Single-Supply, Rail-to-Rail Low Power FET-Input Op Amp Data Sheet AD822 FEATURES CONNECTION DIAGRAM True single-supply operation OUT1 1 8 V+ Output swings rail-to-rail Input voltage range extends below ground –IN1 2 7 OUT2 Single-supply capability from 5 V to 30 V +IN1 3 6 –IN2 Dual-supply capability from ±2.5 V to ±15 V V– 4 5
001
AD822 +IN2 High load drive
00874-
Capacitive load drive of 350 pF, G = +1
Figure 1. 8-Lead PDIP (N Suffix); 8-Lead MSOP (RM Suffix);
Minimum output current of 15 mA
and 8-Lead SOIC_N (R Suffix)
Excellent ac performance for low power 800 µA maximum quiescent current per amplifier Unity-gain bandwidth: 1.8 MHz Slew rate of 3 V/μs Good dc performance 800 µV maximum input offset voltage 2 µV/°C typical offset voltage drift 25 pA maximum input bias current Low noise 13 nV/√Hz at 10 kHz No phase inversion APPLICATIONS Battery-powered precision instrumentation Photodiode preamps Active filters 12-bit to 14-bit data acquisition systems Medical instrumentation Low power references and regulators GENERAL DESCRIPTION
The AD822 is a dual precision, low power FET input op amp
100
that can operate from a single supply of 5 V to 30 V or from dual supplies of ±2.5 V to ±15 V. It has true single-supply capability
z) H
with an input voltage range extending below the negative rail,
/√
al owing the AD822 to accommodate input signals below ground
E (nV
while in the single-supply mode. Output voltage swing extends
OIS N
to within 10 mV of each rail, providing the maximum output
10 GE A
dynamic range.
LT O
Offset voltage of 800 µV maximum, offset voltage drift of 2 µV/°C,
V UT
input bias currents below 25 pA, and low input voltage noise
INP
provide dc precision with source impedances up to a gigaohm. The 1.8 MHz unity-gain bandwidth, –93 dB total harmonic
1
002 distortion (THD) at 10 kHz, and 3 V/µs slew rate are provided
10 100 1k 10k FREQUENCY (Hz)
00874- with a low supply current of 800 µA per amplifier. Figure 2. Input Voltage Noise vs. Frequency
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Document Outline FEATURES APPLICATIONS CONNECTION DIAGRAM GENERAL DESCRIPTION REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE MAXIMUM POWER DISSIPATION ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS APPLICATIONS INFORMATION INPUT CHARACTERISTICS OUTPUT CHARACTERISTICS SINGLE-SUPPLY VOLTAGE TO FREQUENCY CONVERTER LOW DROPOUT BIPOLAR BRIDGE DRIVER OUTLINE DIMENSIONS ORDERING GUIDE