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REF54
  • REF54
  • REF54

REF54

ACTIVE

0.8ppm/°C drift (max), 0.11ppmp-p 1/f noise, 380μA current precision voltage reference

Texas Instruments REF54 Product Info

1 April 2026 3

Parameters

Rating

Catalog

VO (V)

2.5, 3, 4.096, 4.5, 5

Temp coeff (max) (ppm/°C)

0.8

Initial accuracy (max) (%)

0.02

Features

Enable pin

Iout/Iz (max) (mA)

10

Vin (min) (V)

2.7

Vin (max) (V)

18

Iq (typ) (mA)

0.26

LFN 0.1 to 10 Hz (typ) (µVPP)

1.125

Operating temperature range (°C)

-40 to 125

Shutdown current (ISD) (typ) (µA)

5

Package

SOIC (D)-8-29.4 mm² 4.9 x 6

Features

  • Low temperature drift coefficient:
    • 0.8ppm/°C maximum (C grade, 0°C to 70°C)
    • 1.5ppm/°C maximum (Q grade, –40°C to 125°C)
  • Low noise (0.1Hz to 10Hz):
    • 0.11ppmp-p with CNR = 100µF
    • 0.45ppmp-p with CNR = Open
  • High accuracy: ±0.02% maximum
  • Low quiescent current: 380µA maximum
  • Low long-term stability (1khr): 25ppm, SOIC
  • Low long-term stability (1khr): 3ppm, Ceramic
  • Designed for a wide range of applications:
    • Wide input voltage up to 18V
    • Output current: ±10mA
    • Voltage options: 2.5V, 3V, 4.096V, 4.5V, 5V
  • Fit for all design requirement:
    • Stable with 1µF to 100µF output low-ESR capacitor
    • High PSRR: 100dB at 1kHz
    • Operating temperature range: −40°C to +125°C
    • Pin-to-pin to REF50xx family when TEMP pin is not used
  • Low temperature drift coefficient:
    • 0.8ppm/°C maximum (C grade, 0°C to 70°C)
    • 1.5ppm/°C maximum (Q grade, –40°C to 125°C)
  • Low noise (0.1Hz to 10Hz):
    • 0.11ppmp-p with CNR = 100µF
    • 0.45ppmp-p with CNR = Open
  • High accuracy: ±0.02% maximum
  • Low quiescent current: 380µA maximum
  • Low long-term stability (1khr): 25ppm, SOIC
  • Low long-term stability (1khr): 3ppm, Ceramic
  • Designed for a wide range of applications:
    • Wide input voltage up to 18V
    • Output current: ±10mA
    • Voltage options: 2.5V, 3V, 4.096V, 4.5V, 5V
  • Fit for all design requirement:
    • Stable with 1µF to 100µF output low-ESR capacitor
    • High PSRR: 100dB at 1kHz
    • Operating temperature range: −40°C to +125°C
    • Pin-to-pin to REF50xx family when TEMP pin is not used

Description

The REF54 is a family of high precision, low-drift, low current consumption series voltage reference devices. The REF54 family offers low temperature drift coefficient (0.8ppm/°C), low noise (0.11ppmp-p) and high accuracy (±0.02%) while consuming 380µA current. The REF54 with low long-term drift (3ppm LCCC; 25ppm SOIC ), excellent load and line regulation helps meet strict performance requirements of high precision applications. The device family is designed as a companion device for high-resolution data converters such as ADS8900B, ADS127L11, ADS1285 and DAC11001B.

The REF54 family supports wide supply voltage rating of 18V. The REF54 device supports up to 10mA load current.

The REF54 is specified for the two temperature ranges, C grade is specified for 0°C to 70°C and Q grade is specified for –40°C to +125°C . The wide temperature range enables operation across various industrial applications.

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