LT6658 Precision Dual-Output, High Current, Low Noise Voltage Reference

Linear Technology's LT6658 combines the performance of a low-drift, low-noise reference and a linear regulator

Image of Linear Technology LT6658 Precision Dual Output, High Current, Low Noise Voltage ReferenceThe LT6658 precision 2.5 V dual-output reference from Linear Technology combines the performance of a low drift low noise reference and a linear regulator. 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 powering microcontrollers and other supporting devices. Both outputs have the same precision specifications and track each other over temperature and load. Both outputs are nominally 2.5 V; however, each can be configured with external resistors to give an output voltage up to 6 V.

Using Kelvin connections, the LT6658 typically has 0.1 ppm/mA load regulation with up to 150 mA load current. A noise reduction pin is available to band-limit and lower the total integrated noise. Dual outputs provide flexibility for powering reference and regulator applications and localizing PCB routing. The outputs have excellent supply rejection and are stable with 1 μF to 50 μF capacitors. Short circuit and thermal protection help maintain stability and prevent thermal overstress. The LT6658 is offered in the MSE16 exposed pad package.

  • Dual output tracking reference
  • Each output configurable: 2.5 V to 6 V
  • Output 1: 150 mA source / 20 mA sink
  • Output 2: 50 mA source / 20 mA sink
  • Low noise: 1.5 ppmP-P (0.1 Hz to 10 Hz)
  • Wide operating voltage range to 36 V
  • Low drift:
    • A-Grade: 10 ppm/°C max
    • B-Grade: 20 ppm/°C max
  • High accuracy:
    • A-Grade: ±0.05% max
    • B-Grade: ±0.1% max
  • Load regulation: 0.1 ppm/mA
  • AC PSRR: 96 dB at 10 kHz
  • Kelvin sense connection on outputs
  • Thermal shutdown
  • Separate supply pins for each output
  • Available in exposed pad package MSE16

Video: LT6658 Precision Dual Output, High Current, Low Noise, Low Drift Reference

Image of Linear Technology LT6658 Graphs

LT6658 Precision Voltage Reference

ImageManufacturer Part NumberDescriptionToleranceTemperature CoefficientAvailable QuantityView Details
LT6658BIMSE-2.5#PBF datasheet linkIC VREF SERIES DL 2.5V 16MSOPLT6658BIMSE-2.5#PBFIC VREF SERIES DL 2.5V 16MSOP±0.1%20ppm/°C426 - Immediate
LT6658BIMSE-2.5#PBF product page link
LT6658BHMSE-2.5#PBF datasheet linkIC VREF SERIES DL 2.5V 16MSOPLT6658BHMSE-2.5#PBFIC VREF SERIES DL 2.5V 16MSOP±0.1%20ppm/°C259 - Immediate
LT6658BHMSE-2.5#PBF product page link
LT6658AIMSE-2.5#PBF datasheet linkIC VREF SERIES DL 2.5V 16MSOPLT6658AIMSE-2.5#PBFIC VREF SERIES DL 2.5V 16MSOP±0.05%10ppm/°C225 - Immediate
LT6658AIMSE-2.5#PBF product page link
LT6658AHMSE-2.5#PBF datasheet linkIC VREF SERIES DL 2.5V 16MSOPLT6658AHMSE-2.5#PBFIC VREF SERIES DL 2.5V 16MSOP±0.05%10ppm/°C126 - Immediate
LT6658AHMSE-2.5#PBF product page link

Demonstration Board

ImageManufacturer Part NumberDescriptionMain PurposeUtilized IC / PartPrimary AttributesAvailable QuantityView Details
DC2432A datasheet linkDEMO BOARD FOR LT6658DC2432ADEMO BOARD FOR LT6658Power Management, Voltage ReferenceLT66582-Channel (Dual)3 - Immediate
DC2432A product page link
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Published: 2017-04-19