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REF53-Q1

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REF53-Q1

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Product details

Rating Automotive VO (V) 1.2, 1.25, 1.8, 2.048, 2.5, 3, 3.3, 4.096, 4.5, 5 Temp coeff (max) (ppm/°C) 4 Initial accuracy (max) (%) 0.04 Iout/Iz (max) (mA) 30 Vin (min) (V) 1.71 Vin (max) (V) 18 Iq (typ) (mA) 0.085 Operating temperature range (°C) -40 to 125
Rating Automotive VO (V) 1.2, 1.25, 1.8, 2.048, 2.5, 3, 3.3, 4.096, 4.5, 5 Temp coeff (max) (ppm/°C) 4 Initial accuracy (max) (%) 0.04 Iout/Iz (max) (mA) 30 Vin (min) (V) 1.71 Vin (max) (V) 18 Iq (typ) (mA) 0.085 Operating temperature range (°C) -40 to 125
SOT-23-THN (DDC) 6 8.12 mm² (2.9 mm × 2.8 mm)
  • Low temperature drift coefficient: 4ppm/°C maximum
  • Low quiescent current: 85µA typical
  • Low noise
    • 0.1Hz to 10Hz: 3ppmp-p
    • 10Hz to 1kHz: 3ppmrms
  • High accuracy: ±0.04% maximum
  • Small Size: SOT-23-THN-6 (DDC) package
  • Designed for a wide range of applications:
    • Wide input voltage up to 18V
    • Output current: +30mA/-10mA
    • Voltage options: 1.2V, 1.25V, 1.8V, 2.048V, 2.5V, 3V, 3.3V, 4.096V, 4.5V, 5V
  • Fit for all design requirement:
    • Stable with 1µF to 50µF output low-ESR capacitor
    • High PSRR: 85dB at 1kHz
    • Specified temperature range: −40°C to +125°C
    • Operational temperature range: −55°C to +125°C
  • Low temperature drift coefficient: 4ppm/°C maximum
  • Low quiescent current: 85µA typical
  • Low noise
    • 0.1Hz to 10Hz: 3ppmp-p
    • 10Hz to 1kHz: 3ppmrms
  • High accuracy: ±0.04% maximum
  • Small Size: SOT-23-THN-6 (DDC) package
  • Designed for a wide range of applications:
    • Wide input voltage up to 18V
    • Output current: +30mA/-10mA
    • Voltage options: 1.2V, 1.25V, 1.8V, 2.048V, 2.5V, 3V, 3.3V, 4.096V, 4.5V, 5V
  • Fit for all design requirement:
    • Stable with 1µF to 50µF output low-ESR capacitor
    • High PSRR: 85dB at 1kHz
    • Specified temperature range: −40°C to +125°C
    • Operational temperature range: −55°C to +125°C

The REF53-Q1 is a family of low-power, low-noise and low-drift series voltage reference devices. The REF53-Q1 family offers low temperature drift coefficient (4ppm/°C) for a temperate range from –40°C to +125°C, low-noise (2ppmp-p) and high-accuracy (±0.04%) while consuming 150µA maximum current. The REF53-Q1 with excellent load and line regulation helps to meet strict performance requirements of high precision applications. The device family is designed as a companion device for high-resolution data converters and AFEs. The device is pin compatible performance upgrade to TI’s REF34, REF34-Q1 device families.

The REF53-Q1 family supports wide supply voltage rating of 18V. This also protects the device in case of power supply IC failure. The REF53-Q1 device supports up to 30mA load current. The wide load current support allows for direct connection of REF53-Q1 as power supply to precision sensors. The REF53-Q1 is specified for a temperate range from –40°C to +125°C. The wide temperature range enables operation across various industrial and automotive applications.

The REF53-Q1 is a family of low-power, low-noise and low-drift series voltage reference devices. The REF53-Q1 family offers low temperature drift coefficient (4ppm/°C) for a temperate range from –40°C to +125°C, low-noise (2ppmp-p) and high-accuracy (±0.04%) while consuming 150µA maximum current. The REF53-Q1 with excellent load and line regulation helps to meet strict performance requirements of high precision applications. The device family is designed as a companion device for high-resolution data converters and AFEs. The device is pin compatible performance upgrade to TI’s REF34, REF34-Q1 device families.

The REF53-Q1 family supports wide supply voltage rating of 18V. This also protects the device in case of power supply IC failure. The REF53-Q1 device supports up to 30mA load current. The wide load current support allows for direct connection of REF53-Q1 as power supply to precision sensors. The REF53-Q1 is specified for a temperate range from –40°C to +125°C. The wide temperature range enables operation across various industrial and automotive applications.

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* Data sheet REF53-Q1 , 4ppm/°C Maximum Drift, 3ppmp-p 1/f Noise, 85μA Current, 30mA Load Current, Precision Voltage Reference datasheet PDF | HTML Aug 31, 2026

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Evaluation board

REF53EVM — REF53-Q1 evaluation module

The REF53EVM is a precision voltage reference evaluation module (EVM) that demonstrates the performance of the REF53 high-precision reference device from Texas Instruments. REF53 is a family of low power, low noise, and low drift series voltage reference devices. The REF53 family offers (...)
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REF53EVM-DOC-CERT — REF53EVM EU Declaration of Conformity (DoC)

REF53EVM EU Declaration of Conformity (DoC)
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