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: 0.25µV/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 and 4mm × 3mm DFN

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 Refulator. 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 and DFN 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 Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits (9)

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.

Discussions

LT6658 Discussions

RE: LT6658如何能同时输出正负2.5V的电压?
16 week(s) ago in Voltage References
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Evaluation Boards Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
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.