LT6658

RECOMMENDED FOR NEW DESIGNS

Precision Dual Output, High Current, Low Noise, Voltage Reference

Data Sheet (Rev. C) Product Selection Table
Part Models
95
1ku List Price
Starting From $2.77
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Part Details

  • 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
LT6658
Precision Dual Output, High Current, Low Noise, Voltage Reference
LT6658 Application Circuit LT6658 Performance Graph LT6658 Pin Configuration LT6658 Pin Configuration
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 2

Technical Articles 1

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Hardware Ecosystem

Parts Product Life Cycle Description
Positive Linear Regulators (LDO) 1
LT3040
RECOMMENDED FOR NEW DESIGNS 20V, 200mA, Ultralow Noise, Ultrahigh PSRR Precision DAC/Reference Buffer
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Tools & Simulations

LTspice 1

Models for the following parts are available in LTspice:

  • LT6658
  • LT6658-1.2
  • LT6658-1.8
  • LT6658-2.5
  • LT6658-3
  • LT6658-3.3
  • LT6658-5
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.

Evaluation Kits

eval board
schematic 1
DC2677A

LTC2358-18, LT6658, ADA4522-2 Industrial Data Acquisition Nonisolated Board

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Product Details

Demonstration circuit 2677A is a reference design for robust industrial data acquisition applications for the LTC®2358-18. The LTC2358-18 is capable of high voltage measurements with a large input common range; however, the DC2677A implements input protection that allows up to 400V of continuous input protection. Combined with gas discharge tubes, which provide protection from surges, the DC2677A is capable of surviving extreme abuse.

This reference design includes the LTC2358-18 SAR ADC, ADA4522-2 dual zero-drift operational amplifier, and an LT6658 dual-output, high current reference for sensor excitation.

The digital interface is an HSMC (high-speed mezzanine connector), which is compatible with Altera Cyclone V SoCkit and other Altera FPGA evaluation boards that support 3.3V CMOS I/O.

eval board
schematic 2
schematic 3
DC2432A

LT6658 Demo Board | Low Noise, High Current, Precision Reference

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Product Details

Demonstration circuit 2432B features the LT6658, a precision dual output reference that combines the performance of a low drift low noise reference and a linear regulator. Demonstration circuits are available with 1.25V, 2.5V, 3.0V, 3.3V, 4.096V and 5V output option parts. Both outputs are ideal for driving the precision reference inputs of high resolution ADCs and DACs, even with heavy loading while simultaneously acting as output supplies for powering microcontrollers and other supporting devices. Both outputs have the same precision specifications and track each other over temperature. Each output can be configured with external resistors to give an output voltage up to 6V.


 


eval board
schematic 4
DC2542A

LTC2358-18, LTM2893, ADA4522-1, LT6658 Demo Board | Isolated Industrial Data Acquisition Board (Requires ArrowSoCkit)

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Product Details

Demonstration circuit 2542A is a reference design for robust industrial data acquisition applications based on the LTC2358-18. The LTC2358-18 is capable of high voltage measurements with a large input common range; however, the DC2542A implements input protection that allows up to 400V of continuous input protection. Combined with gas discharge tubes, which provide protection from surges, the DC2542A is capable of surviving extreme abuse.


Please click here for the Arrow SoCkit

eval board
schematic 5
DC2432B-E

LT6658-3.3 Demo Board | Low Noise, High Current, Precision Reference

Buy Now View Details

Product Details

Demonstration circuit 2432B features the LT6658, a precision dual output reference that combines the performance of a low drift low noise reference and a linear regulator. Demonstration circuits are available with 1.25V, 1.8V, 2.5V, 3.0V, 3.3V and 5V output option parts. Both outputs are ideal for driving the precision reference inputs of high resolution ADCs and DACs, even with heavy loading while simultaneously acting as output supplies for powering microcontrollers and other supporting devices. Both outputs have the same precision specifications and A track each other over temperature. Each output can be configured with external resistors to give an output voltage up to 6V.

eval board
schematic 6
DC2432B-C

LT6658-2.5 Demo Board | Low Noise, High Current, Precision Reference

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Product Details

Demonstration circuit 2432B features the LT6658, a precision dual output reference that combines the performance of a low drift low noise reference and a linear regulator. Demonstration circuits are available with 1.25V, 1.8V, 2.5V, 3.0V, 3.3V and 5V output option parts. Both outputs are ideal for driving the precision reference inputs of high resolution ADCs and DACs, even with heavy loading while simultaneously acting as output supplies for powering microcontrollers and other supporting devices. Both outputs have the same precision specifications and A track each other over temperature. Each output can be configured with external resistors to give an output voltage up to 6V.

eval board
schematic 7
DC2432B-F

LT6658-5 Demo Board | Low Noise, High Current, Precision Reference

Buy Now View Details

Product Details

Demonstration circuit 2432B features the LT6658, a precision dual output reference that combines the performance of a low drift low noise reference and a linear regulator. Demonstration circuits are available with 1.25V, 1.8V, 2.5V, 3.0V, 3.3V and 5V output option parts. Both outputs are ideal for driving the precision reference inputs of high resolution ADCs and DACs, even with heavy loading while simultaneously acting as output supplies for powering microcontrollers and other supporting devices. Both outputs have the same precision specifications and A track each other over temperature. Each output can be configured with external resistors to give an output voltage up to 6V.

eval board
schematic 8
DC2432B-B

LT6658-1.8 Demo Board | Low Noise, High Current, Precision Reference

Buy Now View Details

Product Details

Demonstration circuit 2432B features the LT6658, a precision dual output reference that combines the performance of a low drift low noise reference and a linear regulator. Demonstration circuits are available with 1.25V, 1.8V, 2.5V, 3.0V, 3.3V and 5V output option parts. Both outputs are ideal for driving the precision reference inputs of high resolution ADCs and DACs, even with heavy loading while simultaneously acting as output supplies for powering microcontrollers and other supporting devices. Both outputs have the same precision specifications and A track each other over temperature. Each output can be configured with external resistors to give an output voltage up to 6V.

eval board
schematic 9
DC2432B-A

LT6658-1.2 Demo Board | Low Noise, High Current, Precision Reference

Buy Now View Details

Product Details

Demonstration circuit 2432B features the LT6658, a precision dual output reference that combines the performance of a low drift low noise reference and a linear regulator. Demonstration circuits are available with 1.25V, 1.8V, 2.5V, 3.0V, 3.3V and 5V output option parts. Both outputs are ideal for driving the precision reference inputs of high resolution ADCs and DACs, even with heavy loading while simultaneously acting as output supplies for powering microcontrollers and other supporting devices. Both outputs have the same precision specifications and A track each other over temperature. Each output can be configured with external resistors to give an output voltage up to 6V.

eval board
schematic 10
DC2432B-D

LT6658-3 Demo Board | Low Noise, High Current, Precision Reference

Buy Now View Details

Product Details

Demonstration circuit 2432B features the LT6658, a precision dual output reference that combines the performance of a low drift low noise reference and a linear regulator. Demonstration circuits are available with 1.25V, 1.8V, 2.5V, 3.0V, 3.3V and 5V output option parts. Both outputs are ideal for driving the precision reference inputs of high resolution ADCs and DACs, even with heavy loading while simultaneously acting as output supplies for powering microcontrollers and other supporting devices. Both outputs have the same precision specifications and A track each other over temperature. Each output can be configured with external resistors to give an output voltage up to 6V.
DC2677A
LTC2358-18, LT6658, ADA4522-2 Industrial Data Acquisition Nonisolated Board
DC2677A_UG-1387 Image
DC2432A
LT6658 Demo Board | Low Noise, High Current, Precision Reference
DC2432A - Schematic DC2432A
DC2542A
LTC2358-18, LTM2893, ADA4522-1, LT6658 Demo Board | Isolated Industrial Data Acquisition Board (Requires ArrowSoCkit)
DC2542A
DC2432B-E
LT6658-3.3 Demo Board | Low Noise, High Current, Precision Reference
DC2432B
DC2432B-C
LT6658-2.5 Demo Board | Low Noise, High Current, Precision Reference
DC2432B
DC2432B-F
LT6658-5 Demo Board | Low Noise, High Current, Precision Reference
DC2432B
DC2432B-B
LT6658-1.8 Demo Board | Low Noise, High Current, Precision Reference
DC2432B
DC2432B-A
LT6658-1.2 Demo Board | Low Noise, High Current, Precision Reference
DC2432B
DC2432B-D
LT6658-3 Demo Board | Low Noise, High Current, Precision Reference
DC2432B

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RE: LT6658 with voltage divider on output
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