AD7821 - ADI

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

Part No

AD7821
Manufacturer

ADI
ChipWorker Part#

CW430819344
Description

High Speed, P-Compatible, CMOS, 8Bit Sampling ADC
Documentation

Datasheet

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AD7821 Specifications

Attribute	Attribute Value

Part Number	AD7821
Manufacturer	ADI
ChipWorker Part#	CW430819344
Documentation	Datasheet
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Product Lifecycle Status	Active

Product Description

GENERAL DESCRIPTION
The AD7821 is a high speed, 8-bit, sampling, analog-to-digital converter that offers improved performance over the popular AD7820. It offers a conversion time of 660 ns (versus 1.36 µs for the AD7820) and 100 kHz signal bandwidth (versus 6.4 kHz). The sampling instant is better defined and occurs on the falling edge of WR or RD. The provision of a VSS pin (Pin 19) allows the part to operate from ±5 V supplies and to digitize bipolar input signals. Alternatively, for unipolar inputs, the VSS pin can be grounded and the AD7821 will operate from a single +5 V supply, like the AD7820.
FEATURES
Fast Conversion Time: 660 ns Max
100 kHz Track-and-Hold Function
1 MHz Sample Rate
Unipolar and Bipolar Input Ranges
Ratiometric Reference Inputs
No External Clock
Extended Temperature Range Operation
Skinny 20-Lead DlPs, SOIC, and 20-Terminal Surface-Mount Packages

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