AD823A - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

AD823A
Manufacturer

ADI
ChipWorker Part#

CW760519613
Description

17MHz, Rail-to-Rail FET Input Dual Amplifier
Documentation

Datasheet

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AD823A Specifications

Attribute	Attribute Value

Part Number	AD823A
Manufacturer	ADI
ChipWorker Part#	CW760519613
Documentation	Datasheet
	expand all
Product Lifecycle Status	Unknown

Product Description

Product Details
The AD823A is a dual precision, 17 MHz, JFET input op amp manufactured in the extra fast complementary bipolar (XFCB) process. The AD823A can operate from a single supply of 3 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 17 mV of each rail for IOUT ≤ 100 µA, providing outstanding output dynamic range.
An offset voltage of 700 µV maximum, an offset voltage drift of 1 µV/°C, typical input bias currents of 0.3 pA, and low input voltage noise provide dc precision with source impedances up to 1 GΩ. The AD823A provides 17 MHz, −3 dB bandwidth, −110 dB THD at 20 kHz, and a 30 V/µs slew rate with a low supply current of 2.6 mA per amplifier. The AD823A drives more than 1000 pF of direct capacitive load as a follower and provides a linear output current of 40 mA, 0.5 V from the supply rails. This lets the amplifier handle a wide range of load conditions.
This combination of ac and dc performance, plus the outstanding load drive capability, results in an exceptionally versatile ampli¬fier for applications such as ADC drivers, high speed active filters, and other low voltage, high dynamic range systems.
The AD823A is available over the industrial temperature range of −40°C to +85°C and is offered in an 8-lead SOIC package and the 8-lead MSOP package.
**Applications**
Battery-powered precision instrumentation
hotodiode preamps
Active filters
12-bit to 16-bit data acquisition systems
Medical instrumentation
### Features and Benefits
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 1000 pF, G = +1
\- Linear output current of 40mA, 0.5 V from supplies
Excellent ac performance on 2.6 mA/amplifier
\- −3 dB bandwidth of 17 MHz, G = +1
\- 325 ns settling time to 0.01% (2 V step)
\- Slew rate of 30 V/µs
Good dc performance
\- 700 µV maximum input offset voltage
\- 1 µV/°C offset voltage drift
\- 25 pA maximum input bias current
Low distortion: −110 dBc worst harmonic at 20 kHz
Low noise: 14 nV/√Hz at 10 kHz
No phase inversion with inputs to the supply rails

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