GENERAL DESCRIPTION

The AD823 is a dual precision, 16 MHz, JFET input op amp that can operate from a single supply of 3.0 V to 36 V or from dual supplies of ±1.5 V to ±18 V. It has true single-supply capability with an input voltage range extending below ground in single-supply mode. Output voltage swing extends to within 50 mV of each rail for IOUT ≤ 100 μA, providing outstanding output dynamic range.

An offset voltage of 800 μV maximum, an offset voltage drift of 2 μV/°C, input bias currents below 25 pA, and low input voltage noise provide dc precision with source impedances up to a Gigaohm. It provides 16 MHz, ?3 dB bandwidth, ?108 dB THD @ 20 kHz, and a 22 V/μs slew rate with a low supply current of 2.6 mA per amplifier. The AD823 drives up to 500 pF of direct capacitive load as a follower and provides an output current of 15 mA, 0.5 V from the supply rails. This allows the amplifier to handle a wide range of load conditions.

FEATURES

Single-supply operation

Output swings rail-to-rail

Input voltage range extends below ground

Single-supply capability from 3 V to 36 V

High load drive

Capacitive load drive of 500 pF, G = +1

Output current of 15 mA, 0.5 V from supplies

Excellent ac performance on 2.6 mA/amplifier

?3 dB bandwidth of 16 MHz, G = +1

350 ns settling time to 0.01 (2 V step)

Slew rate of 22 V/μs

Good dc performance

800 μV maximum input offset voltage

2 μV/°C offset voltage drift

25 pA maximum input bias current

Low distortion: ?108 dBc worst harmonic @ 20 kHz

Low noise: 16 nV/√Hz @ 10 kHz

No phase inversion with inputs to the supply rails

APPLICATIONS

Battery-powered precision instrumentation

Photodiode preamps

Active filters

12-bit to 16-bit data acquisition systems

Medical instrumentation

AD823屬于集成電路（IC） > 專用 IC。亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的AD823專用 IC專用專用集成電路 (IC) 或芯片設(shè)計用于執(zhí)行特定功能。這個類別包括可尋址開關(guān)、空芯儀表驅(qū)動器、音視頻開關(guān)、驗證芯片、自動放電、時鐘發(fā)生器、彩色掃描儀，以及各種應(yīng)用所用的其他許多集成電路。