The AD872A is a monolithic 12-bit, 10 MSPS analog-to-digital converter with an on-chip, high performance track-and-hold amplifier and voltage reference. The AD872A uses a multistage differential pipelined architecture with error correction logic to provide 12-bit accuracy at 10 MSPS data rates and guarantees no missing codes over the full operating temperature range. The AD872A is a redesigned version of the the AD872 which has been optimized for lower noise. The AD872A is pin compatible with the AD872, allowing the parts to be used interchangeably as system requirements change.
The low noise input track-and-hold (T/H) of the AD872A is ideally suited for high-end imaging applications. In addition, the T/H's high input impedance and fast settling characteristics allow the AD872A to easily interface with multiplexed systems that switch multiple signals through a single A/D converter. The dynamic performance of the T/H also renders the AD872A suitable for sampling single channel inputs at frequencies up to and beyond the Nyquist rate. The AD872A provides both reference output and reference input pins, allowing the on-board reference to serve as a system reference. An external reference can also be chosen to suit the dc accuracy and temperature drift requirements of the application. A single clock input is used to control all internal conversion cycles. The digital output data is presented in twos complement binary output format. An out-of-range signal indicates an overflow condition, and can be used with the most significant bit to determine low or high overflow.
The AD872A is fabricated on Analog Devices' ABCMOS-l process that utilizes high speed bipolar and CMOS transistors on a single chip.
The AD872A is packaged in a 28-pin ceramic DIP and a 44-pin leadless ceramic surface mount package (LCC). Operation is specified from 0°C to +70°C and -55°C to +125°C.
|Title||Content Type||File Type|
|AD872A: Complete 12-Bit 10 MSPS Monolithic A/D Converter Data Sheet (Rev A, 11/1997) (pdf, 330 kB)||Data Sheets|
|AD872A: Military Data Sheet (Rev B, 11/1997) (pdf, 102 kB)||Data Sheets|
|AN-302: 02: Exploit Digital Advantages in an SSB Receiver (pdf, 417 kB)||Application Notes|
ADI Warns Against Misuse of COTS Integrated Circuits
(pdf, 13 kB)
Invites Customer Participation in Creative Mil/Aero System Solutions
|MS-2210: Designing Power Supplies for High Speed ADC (pdf, 327 kB)||Technical Articles|
Correlating High-Speed ADC Performance to Multicarrier 3G Requirements
by Brad Brannon (RF Design, 6/1/2003)
Using Histogram Techniques to Measure A/D Converter Noise
(Analog Dialogue, Vol. 29, No. 2, 1995)
Choosing High-Speed Signal Processing Components for Ultrasound Systems
(Analog Dialogue, Vol. 29, No. 2, 1995)
Space Qualified Parts List
(pdf, 93 kB)
This document lists 67 (240+) space level products that are available from Analog Devices. Many of the products listed are state-of-the-art data conversion and signal processing products that were previously only available as commercial or military Class B products. Through our Space Products Group and MIL-PRF-38535 certified Level V (Class S) facility, we are pleased to offer these products to the space marketplace.
|RAQs index||Rarely Asked Questions||HTML|
|Glossary of EE Terms||Glossary||HTML|
Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.
|Price*(100-499)||Price*1000 pcs||RoHS||View PCN/ PDN||Check Inventory/
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.