LT9890

Name: LT9890
Brand: Analog Devices
Price: 6.31 USD
Availability: InStock

RECOMMENDED FOR NEW DESIGNS

150 A Current Monitor for Intel Psys Applications

Data Sheet (Rev. A) Product Selection Table

Part Models: 1
1ku List Price: Starting From $6.31

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Overview

Integrated current sense element
150 A current range
26,600:1 input-to-output current ratio (5 mA at 133 A)
±1.3% TUE maximum (I_SENSE = 45 A to 150 A)
3.2 MHz small-signal bandwidth (I_SENSE = 150 A)

150 μΩ current path resistance
Powered from 2.7 V to 65 V
Intel Psys compatible
Available in 108-terminal, 10 mm × 20 mm × 2.75 mm, LGA package

Part Models: 1
1ku List Price: Starting From $6.31

Documentation

Data Sheet 1

LT9890: 150 A Current Monitor for Intel Psys Applications Data Sheet (Rev.A) 07/26/2023

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LT9890AV#PBF	108-Terminal Land Grid Array [LGA] (10 mm x 20 mm x 2.75 mm)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

LT9890

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

Evaluating the LT9890, 150 A Current Monitor for Intel Psys Applications

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Features and Benefits

Fully featured evaluation board for the LT9890
Response bandwidth greater than 1 MHz
Compatible with Intel VR14 Psys systems

Product Details

The EVAL-LT9890-A1Z showcases the LT9890 high-precision current monitor with internal current-sense element supporting up to 150 A of load current. The LT9890 IOUT pin outputs a monitor current with 26600:1 ratio to the pass current flowing through IP to IM pins. The IOUT monitor current flows through an external ground referenced 200 Ω || 100 pF network (~8 MHz low-pass filter) to the P4 (1×2, 100 mil) and J1 (SMA) headers for convenient measurement. The LT9890 current sense element is factory calibrated to 1% of the total unadjusted error and has a zero-temperature coefficient architecture. The IOUT current monitor has a response bandwidth greater than 1 MHz, providing a fast and accurate ground-referenced output signal insensitive to ground voltage variations. Minimal power loss is achieved through a low, 150 μΩ current path resistance and an aspect ratio conducive to wide printed circuit board (PCB) traces. In addition, the LT9890 is compatible with Intel VR14 Psys systems. The key performance characteristics of the EVAL-LT9890-A1Z are shown in the Performance Summary.

Design files for the EVAL-LT9890-A1Z are available on the EVALLT9890 evaluation board page.

For full details on the LT9890, see the LT9890 data sheet, which should be consulted in conjunction with this user guide when using the EVAL-LT9890-A1Z evaluation board.