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AD7892:  True Bipolar Input, Single Supply, Parallel, 12-Bit 600 kSPS ADC

Product Details


The AD7892 is a high speed, low power, 12-bit A/D converter that operates from a single +5 V supply. The part contains a 1.47 µs successive approximation ADC, an on-chip track/hold amplifier, an internal +2.5 V reference and on-chip versatile interface structures that allow both serial and parallel connection to a microprocessor. The part accepts an analog input range of ±10 V or ±5 V (AD7892-1), 0 V to +2.5 V (AD7892-2) and ±2.5 V (AD7892-3). Overvoltage protection on the analog inputs for the AD7892-1 and AD7892-3 allows the input voltage to go to ±17 V or ±7 V respectively without damaging the ports.

The AD7892 offers a choice of two data output formats: a single, parallel, 12-bit word or serial data. Fast bus access times and standard control inputs ensure easy parallel interface to microprocessors and digital signal processors. A high speed serial interface allows direct connection to the serial ports of microcontrollers and digital signal processors.

In addition to the traditional dc accuracy specifications such as linearity, full-scale and offset errors, the part is also specified for dynamic performance parameters including harmonic distortion and signal-to-noise ratio.

The AD7892 is fabricated in Analog Devices' Linear Compatible CMOS (LC2MOS) process, a mixed technology process that combines precision bipolar circuits with low-power CMOS logic. It is available in a 24-pin, 0.3" wide, plastic or hermetic DIP or in a 24-pin SOIC.

FEATURES and BENEFITS

  • Fast 12-Bit ADC with 1.47 µs Conversion Time
  • 600 kSPS Throughput Rate (AD7892-3)
  • 500 kSPS Throughput Rate (AD7892-1, AD7892-2)
  • Single Supply Operation
  • On-Chip Track/Hold Amplifier
  • High Speed Serial and Parallel Interface
  • Low Power, 60 mW typ
  • Selection of Input Ranges:
    ±10 V or ±5 V for AD7892-1
    0 V to +2.5 V for AD7892-2
    ±2.5 V for AD7892-3
  • Overvoltage Protection on Analog Inputs
    (AD7892-1 and AD7892-3)

Functional Block Diagram for AD7892

Documentation

Title Content Type File Type
AD7892: LC2MOS Single Supply, 12-Bit 600 kSPS ADC Data Sheet  (Rev C, 06/2000) (pdf, 144 kB) Data Sheets PDF
AD7892: Military Data Sheet  (Rev A, 09/1999) (pdf) Data Sheets PDF
AN-414: Low Cost, Low Power Devices for HDSL Applications  (pdf, 41 kB) Application Notes PDF
ADI Warns Against Misuse of COTS Integrated Circuits  (pdf, 13 kB)
(Revised 1/03)
Invites Customer Participation in Creative Mil/Aero System Solutions
Recommended Reading PDF
MS-2210: Designing Power Supplies for High Speed ADC  (pdf, 327 kB) Technical Articles PDF
Low-Power, Low-Voltage IC Choices for ECG System Requirements
(Analog Dialogue, Vol. 29, No. 3, 1995)
Technical Articles HTML
Low-Power, Low-Voltage IC Choices for ECG System Requirements
(Analog Dialogue, Vol. 29, No. 3, 1995)
Analog Dialogue HTML
Interfacing to Serial Converters Analog Dialogue HTML
Controller Board System Allows For Easy Evaluation Of General-Purpose Converters
(Analog Dialogue, Vol. 31, No. 1, 1997)
Analog Dialogue HTML
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.
Aerospace Information PDF
8- to 18-Bit SAR ADCs ... From the Leader in High Performance Analog  (pdf, 1885 kB)
8- to 18-Bit SAR ADCs with Sample Rates up to 3 MSPS -- The latest additions to ADI’s ADC portfolio offer unrivaled functionality in terms of channel count and power supply voltage, optimal power/speed ratios, and the smallest packages to meet the demands of any data acquisition application, including portable, industrial, medical, wireless, and communications.
Overview PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

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.

SampleSample & Buy

Price, packaging, availability

AD7892 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD7892AN-1 Status: Production 24 ld PDIP 24 Ind Tube, 15 $19.82 $16.84 N  Material Info PCN Purchase
AD7892AN-2 Status: Last Time Buy 24 ld PDIP 24 Ind Tube, 15 $20.81 $17.68 N  Material Info PCN/PDN Purchase
AD7892ANZ-1 Status: Production 24 ld PDIP 24 Ind Tube, 15 $18.96 $16.11 Y  Material Info PCN Purchase
AD7892ANZ-3 Status: Production 24 ld PDIP 24 Ind Tube, 15 $18.96 $16.11 Y  Material Info PCN Purchase
AD7892AR-1 Status: Production 24 ld SOIC - Wide 24 Ind Tube, 31 $18.33 $15.59 N  Material Info PCN Purchase
AD7892AR-1REEL Status: Production 24 ld SOIC - Wide 24 Ind Reel, 1000 - $15.59 N  Material Info PCN Purchase
AD7892AR-2 Status: Production 24 ld SOIC - Wide 24 Ind Tube, 31 $19.25 $16.37 N  Material Info PCN Purchase
AD7892AR-2REEL7 Status: Last Time Buy 24 ld SOIC - Wide 24 Ind Reel, 400 $19.25 $16.37 N  Material Info PCN/PDN Purchase
AD7892ARZ-1 Status: Production 24 ld SOIC - Wide 24 Ind Tube, 31 $16.70 $14.20 Y  Material Info PCN Purchase
AD7892ARZ-1REEL Status: Production 24 ld SOIC - Wide 24 Ind Reel, 1000 - $14.20 Y  Material Info PCN Purchase
AD7892ARZ-2 Status: Production 24 ld SOIC - Wide 24 Ind Tube, 31 $16.70 $14.20 Y  Material Info PCN Purchase
AD7892ARZ-2REEL Status: Last Time Buy 24 ld SOIC - Wide 24 Ind Reel, 1000 - $14.20 Y  Material Info PCN/PDN Purchase
AD7892ARZ-3 Status: Production 24 ld SOIC - Wide 24 Ind Tube, 31 $17.54 $14.91 Y  Material Info PCN Purchase
AD7892ARZ-3REEL Status: Production 24 ld SOIC - Wide 24 Ind Reel, 1000 - $14.91 Y  Material Info PCN Purchase
AD7892BN-1 Status: Production 24 ld PDIP 24 Ind Tube, 15 $23.79 $20.23 N  Material Info PCN Purchase
AD7892BNZ-1 Status: Production 24 ld PDIP 24 Ind Tube, 15 $22.74 $19.35 Y  Material Info PCN Purchase
AD7892BNZ-2 Status: Production 24 ld PDIP 24 Ind Tube, 15 $22.74 $19.35 Y  Material Info PCN Purchase
AD7892BNZ-3 Status: Production 24 ld PDIP 24 Ind Tube, 15 $22.74 $19.35 Y  Material Info PCN Purchase
AD7892BR-1 Status: Production 24 ld SOIC - Wide 24 Ind Tube, 31 $22.00 $18.70 N  Material Info PCN Purchase
AD7892BR-1REEL Status: Last Time Buy 24 ld SOIC - Wide 24 Ind Reel, 1000 - $18.70 N  Material Info PCN/PDN Purchase
AD7892BR-3 Status: Production 24 ld SOIC - Wide 24 Ind Tube, 31 $22.00 $18.70 N  Material Info PCN Purchase
AD7892BR-3REEL Status: Production 24 ld SOIC - Wide 24 Ind Reel, 1000 - $18.70 N  Material Info PCN Purchase
AD7892BRZ-1 Status: Production 24 ld SOIC - Wide 24 Ind Tube, 31 $20.04 $17.03 Y  Material Info PCN Purchase
AD7892BRZ-1REEL Status: Production 24 ld SOIC - Wide 24 Ind Reel, 1000 - $17.03 Y  Material Info PCN Purchase
AD7892BRZ-2 Status: Production 24 ld SOIC - Wide 24 Ind Tube, 31 $20.04 $17.03 Y  Material Info PCN Purchase Sample
AD7892BRZ-3 Status: Production 24 ld SOIC - Wide 24 Ind Tube, 31 $21.04 $17.88 Y  Material Info PCN Purchase
AD7892BRZ-3REEL Status: Production 24 ld SOIC - Wide 24 Ind Reel, 1000 - $17.88 Y  Material Info PCN Purchase
AD7892SQ-1 Status: Production CERDIP GLASS SEAL 24 Mil Tube, 15 $79.46 $68.87 N  Material Info PCN Purchase
Price Table Help

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.


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