Overview

Features and Benefits

  • Dual Output Tracking Reference
    • Each Output Configurable to 6V
    • Output 1: 150mA Source/20mA Sink
    • Output 2: 50mA Source/20mA Sink
  • Low Drift:
    • A-Grade: 10ppm/°C Max
    • B-Grade: 20ppm/°C Max
  • High Accuracy:
    • A-Grade: ±0.05% Max
    • B-Grade: ±0.1% Max
  • Low Noise: 1.5ppmP-P (0.1Hz to 10Hz)
  • Wide Operating Voltage Range to 36V
  • Load Regulation: 0.1ppm/mA
  • AC PSRR: 96dB at 10kHz
  • Kelvin Sense Connection on Outputs
  • Thermal Shutdown
  • Separate Supply Pins for Each Output
  • Available Output Voltage Options: 1.2V, 1.8V, 2.5V, 3V, 3.3V, 5V. All Options are Adjustable
  • Available in Exposed Pad Package MSE16

Product Details

The LT6658 is a family of precision dual output references combining the performance of a precision voltage reference and a linear regulator that we call the Refulato. Both outputs are ideal for driving the reference inputs of high resolution ADCs and DACs, even with heavy loading, while simultaneously powering microcontrollers and other circuitry. Both outputs have the same precision specifications and track each other over temperature and load. Each output can be configured with external resistors to give an output voltage up to 6V.

Using Kelvin connections, the LT6658 typically has 0.1ppm/mA load regulation with up to 150mA load current. A noise reduction pin is available to band-limit and lower the total integrated noise.

Separate supply pins are provided for each output, providing an option to reduce power consumption and isolate the buffer amplifiers. The outputs have excellent supply rejection and are stable with 1µF to 50µF capacitors.

The LT6658 is available in a 16-lead MSOP with an exposed pad for thermal management. Short circuit and thermal protection help to prevent thermal overstress.

Applications

  • Microcontroller or FPGA with ADC/DAC Applications
  • Data Acquisition Systems
  • Automotive Control and Monitoring
  • Precision Low Noise Regulators
  • Instrumentation and Process Control

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.

Evaluation Kits (8)

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:

LT6658
lt6658-1
LT6658-1.2
LT6658-1.8
lt6658-2
LT6658-2.5
LT6658-3
LT6658-3.3
LT6658-5

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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Evaluation Boards Pricing displayed is based on 1-piece.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.