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AD8217:  High Resolution, Zero-Drift Current Shunt Monitor

Product Details

Product Status:Recommended for New Designs

The AD8217 is a high voltage, high-resolution current shunt amplifier. It features a set gain of 20 V/V, with a maximum ±0.35% gain error over the entire temperature range. The buffered output voltage directly interfaces with any typical converter. The AD8217 offers excellent common-mode rejection from 4.5 V to 80 V, and includes an internal LDO, which directly powers the device from the high voltage rail. Therefore, no addi-tional supply is necessary, provided that the input common-mode range is 4.5 V to 80 V. The AD8217 performs unidirectional current measurements across a shunt resistor in a variety of industrial and telecom applications including motor control, battery management, and base station power amplifier bias control.

The AD8217 offers breakthrough performance throughout the −40°C to +125°C temperature range. It features a zero-drift core, which leads to a typical offset drift of ±100 nV/°C throughout the operating temperature and common-mode voltage range. Special attention is devoted to output linearity being maintained throughout the input differential voltage range of 0 mV to 250 mV, regardless of the common-mode voltage present, and the typical input offset voltage is ±100 μV. The AD8217 is offered in a 8-lead MSOP package and is specified from −40°C to +125°C.


Applications
  • High side current sensing 48 V telecom Power management Base stations Unidirectional motor control Precision high voltage current sources

FEATURES and BENEFITS

  • High common-mode voltage range
    4.5 V to 80 V operating
    0 V to 85 V survival
  • Buffered output voltage
  • Wide operating temperature range: −40°C to +125°C
  • Excellent ac and dc performance
    ±100 nV/°C typical offset drift
    ±100 μV typical offset
    ±5 ppm/°C typical gain drift
    100 dB typical CMRR at dc

Functional Block Diagram

Documentation

Title Content Type File Type
AD8217: High Resolution, Zero-DriftCurrent Shunt Monitor (Rev A, 03/2011) (pdf, 308 kB) Data Sheets PDF
Industrial ICs
Industrial ICs Solutions Bulletin, Volume 10, Issue 8
Solutions Bulletins HTML
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
AD8217 SPICE Macro Model SPICE Models HTML

Evaluation Kits & Symbols & Footprints

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

AD8217 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD8217BRMZ Status: Production 8 ld MSOP 8 Ind Tube, 50 $1.03 $0.99 Y  Material Info PCN Purchase
AD8217BRMZ-R7 Status: Production 8 ld MSOP 8 Ind Reel, 1000 - $0.99 Y  Material Info PCN Purchase
AD8217BRMZ-RL Status: Production 8 ld MSOP 8 Ind Reel, 3000 - $0.99 Y  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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