ADI AD7821KR

81M-40°C ~ 85°C

Overview

The AD7821KR 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 (vs. 1.36 µs for the AD7820) and 100 kHz signal bandwidth (vs. 6.4 kHz). The sampling instant is better defined and occurs on the falling edge of WR of RD. The provision for 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 AD7821KR will operate from a single +5 V supply, like the AD7820.

The AD7821KR is fabricated in Linear-Compatible CMOS (LC2MOS), an advanced, mixed technology process combining precision bipolar circuits with low-power CMOS logic.The part features a low power dissipation of 50 mW.

Features

Tube Package
1 Functions
20 basic kinds of terminations
20 pin count

Surface Mount Mounting Type

Applications

There are a lot of Rochester Electronics, LLC
AD7821KR ADC applications.

• Digital Multimeters, PLC's (Programming Logic Controllers)
• RADAR processing, digital oscilloscopes
• CMOS Image sensors for mobile applications
• Medical Instrumentation and medical imaging
• Music recording
• Digital signal processing
• Scientific instruments
• Rotary encoder
• Displaying
• Transducer