Support is limited to customers who have already adopted these products.

The ISL28617 is a high performance, differential input, differential output instrumentation amplifier designed for precision analog-to-digital applications. It can operate over a supply range of 8V (±4V) to 40V (±20V) and features a differential input voltage range up to ±34V. The output stage has rail-to-rail output drive capability optimized for differential ADC driver applications. Its versatility and small package makes it suitable for a variety of general purpose applications. Additional features not found in other instrumentation amplifiers enable high levels of DC precision and excellent AC performance. The gain of the ISL28617 can be programmed from 0. 1 to 10, 000 via two external resistors, RIN and RFB. The gain accuracy is determined by the matching of RIN and RFB. The gain resistors have Kelvin sensing, which removes gain error due to PC trace resistance. The input and output stages have individual power supply pins, which enable input signals riding on a high common mode voltage to be level shifted to a low voltage device, such as an A/D converter. The rail-to-rail output stage can be powered from the same supplies as the ADC, which preserves the ADC maximum input dynamic range and eliminates ADC input overdrive.

Features

  • Rail-to-rail differential output ADC driver
  • High voltage interface to low voltage circuits
  • Wide operating voltage range: ±4V to ±20V
  • Low input offset: 30μV
  • Excellent CMRR and PSRR: 120dB
  • Closed loop -3dB BW: 0.3MHz (AV = 1k) to 5MHz (AV= 0.1)
  • Operating temperature range: -40°C to +125°C
  • Package: 24 Ld TSSO

Applications

  • Precision test and measurement
  • High voltage industrial process control
  • Signal conditioning amplifier for remote powered sensors
  • Weigh scales
  • ECG and biomedical sense amplifiers

Product Options

Orderable Part ID Part Status Pkg. Type Carrier Type Buy Sample
Obsolete TSSOP Tube
Availability
Obsolete TSSOP Reel
Availability
Obsolete TSSOP Reel
Availability
Obsolete TSSOP Reel
Availability

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
ISL28617 Datasheet Datasheet PDF 1.44 MB
User Guides & Manuals
ISL28617VYADJEV1Z User Guide Manual PDF 220 KB
ISL28617VYXXEV1Z User Guide Manual PDF 218 KB
ISL28617SMXXEV1Z User Guide Manual PDF 211 KB
Application Notes & White Papers
AN1993: Voltage Feedback versus Current Feedback Operational Amplifiers Application Note PDF 564 KB
AN1694: The Four Basic Building Blocks of an Op Amp Application Note PDF 357 KB
AN535: Design Considerations for a Data Acquisition System (DAS) Application Note PDF 843 KB
PCNs & PDNs
PCN12094 - Alternate Manufacturing Site for Assembly of the Listed Intersil Packaged Products - Amkor Technology, Philippines (ATP) Product Change Notice PDF 98 KB
PCN12084 - Manufacturing Site Change for the Listed Intersil Products - Carsem (CAS) Ipoh Malaysia Product Change Notice PDF 135 KB
Other
TB514: Operational Amplifier Basics Other PDF 519 KB

Boards & Kits

Part Number Title Type Company
ISL28617SM100EV1Z 40V Precision Instrumentation Amplifier with Differential A/D Converter Driver Evaluation Board Evaluation
ISL28617SM10EV1Z 40V Precision Instrumentation Amplifier with Differential A/D Converter Driver Evaluation Board Evaluation
ISL28617SMR25EV1Z 40V Precision Instrumentation Amplifier with Differential A/D Converter Driver Evaluation Board Evaluation
ISL28617VY100EV1Z 40V Precision In-Amp Evaluation Board With Vishay Bulk Metal® Foil Resistors Evaluation
ISL28617VY10EV1Z 40V Precision In-Amp Evaluation Board With Vishay Bulk Metal® Foil Resistors Evaluation
ISL28617VY25EV1Z 40V Precision In-Amp Evaluation Board With Vishay Bulk Metal® Foil Resistors Evaluation