Overview

Features and Benefits

Current Sense
  • Supply Range: 5V to 100V
  • Low Offset Voltage: ±500µV (Maximum)
  • 1µs Response Time
  • Gain Configurable with 2 Resistors
  • Low Input Bias Current: 170nA (Maximum)
  • PSRR: 118dB (Minimum)
  • Low Supply Current: 250µA
Voltage Sense
  • Voltage Sense Range: 0V to 100V
  • Precision 1MΩ Resistor Divider
  • Low Total Gain Error: ±0.15% (Maximum)
  • Supply Voltage Range: 2.7V to 5.5V
  • Low Supply Current: 57µA
  • Operating Temperature Range: –40°C to 125°C

Product Details

The LTC6115 is a versatile combination of a high voltage, high side current sense amplifier and a voltage sense amplifier. Design flexibility is provided by the excellent device characteristics: ±500µV maximum offset voltage for current sense and maximum ±0.15% voltage sense total gain error.

The current sensing part of the LTC6115 monitors current by sensing the voltage across an external sense resistor. The sensed voltage is converted to an output current which can then be translated to a voltage by an external resistor, ROUT. Due to its fast response, it is a perfect choice for load current warning and shut-off protection control.

The LTC6115 also includes an internal 1MΩ resistor divider and a precision voltage amplifier for accurate voltage monitoring. The resistor attenuation of 40 enables sensing of up to 100V on the VIN pin, making it suitable for precision high voltage monitoring in telecommunications, industrial and automotive applications. The full-scale output voltage can be configured by external gain resistors to maximize use of the amplifier’s rail-to-rail output. The LTC6115 is available in a 12-lead MSOP package.

Applications
  • Current Shunt Measurement
  • Battery Monitoring
  • Power Management
  • Automotive Sensing and Control
  • Industrial Monitoring

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Tools & Simulations

LTspice

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.

LTspice

Models for the following parts are available in LTspice:

LTC6115

Design Resources

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.

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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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