AD820 - ADI

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

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Part No

AD820
Manufacturer

ADI
ChipWorker Part#

CW134558934
Package

SOIC
Description

Single Supply, Rail to Rail Low Power FET-Input Op Amp
Documentation

Datasheet
Ships from

Moscow
Наличие

In Stock
Estimated Price

Price on Request

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ChipWorker Qualifications — ISO 9001, ISO 45001, ISO 14001, MA Certification. Over 11 years of experience, more than 1000 clients in Russia, support for small MOQ

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AD820 Specifications

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Attribute	Attribute Value

Part Number	AD820
Manufacturer	ADI
ChipWorker Part#	CW134558934
Documentation	Datasheet
Case/Package	SOIC
	expand all
Product Lifecycle Status	Unknown
RoHS	RoHS Compliant

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Product Description

Product Details
The AD820 is a precision, low power FET input op amp that can operate from a single supply of 5 V to 36 V, or dual supplies of ±2.5 V to ±18 V. It has true single-supply capability, with an input voltage range extending below the negative rail, allowing the AD820 to accommodate input signals below ground in the single-supply mode. Output voltage swing extends to within 10 mV of each rail, providing the maximum output dynamic range.
Offset voltage of 800 μV maximum, offset voltage drift of 2 μV/°C, typical input bias currents below 25 pA, and low input voltage noise provide dc precision with source impedances up to 1 GΩ. 1.8 MHz unity gain bandwidth, −93 dB THD at 10 kHz, and 3 V/μs slew rate are provided for a low supply current of 800 μA. The AD820 drives up to 350 pF of direct capacitive load and provides a minimum output current of 15 mA. This allows the amplifier to 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 amplifier for the single-supply user.
The AD820 is available in two performance grades. The A and B grades are rated over the industrial temperature range of −40°C to +85°C. The AD820 is offered in three 8-lead package options: plastic DIP (PDIP), surface mount (SOIC) and (MSOP).
**Applications**
* Battery-powered precision instrumentation
* Photodiode preamps
* Active filters
* 12-bit to 14-bit data acquisition systems
* Medical instrumentation
* Low power references and regulators
Data Sheet, Rev. F, 11/08
### Features and Benefits
True single-supply operation
Output swings rail-to-rail
Input voltage range extends below ground
Single-supply capability from 5 V to 36 V
Dual-supply capability from ±2.5 V to ±18 V
Excellent load drive
Capacitive load drive up to 350 pF
Minimum output current of 15 mA
Excellent ac performance for low power
800 μA maximum quiescent current
Unity-gain bandwidth: 1.8 MHz
Slew rate of 3 V/μs
Excellent 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 @ 10 kHz

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