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Series voltage references

REF5010

ACTIVE

10V, 3-µVpp/V noise, 3-ppm/°C drift precision series voltage reference

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Data sheet

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REF70 ACTIVE Ultra-high-precision voltage reference with low noise and low drift REF70 offers 10x lower noise (0.23 ppm), better drift performance (2 ppm/°C) and 28-ppm long-term drift in a humidity-resistant ceramic package.

REF5010

ACTIVE
Data sheet Order now

Product details

VO (V) 10 Initial accuracy (max) (%) 0.05 Temp coeff (max) (ppm/°C) 3 Vin (min) (V) 10.2 Vin (max) (V) 18 Iq (typ) (mA) 0.8 Rating Catalog Features TRIM/NR pin LFN 0.1 to 10 Hz (typ) (µVPP) 30 Iout/Iz (max) (mA) 10 Operating temperature range (°C) -40 to 125
VO (V) 10 Initial accuracy (max) (%) 0.05 Temp coeff (max) (ppm/°C) 3 Vin (min) (V) 10.2 Vin (max) (V) 18 Iq (typ) (mA) 0.8 Rating Catalog Features TRIM/NR pin LFN 0.1 to 10 Hz (typ) (µVPP) 30 Iout/Iz (max) (mA) 10 Operating temperature range (°C) -40 to 125
SOIC (D) 8 29.4 mm² 4.9 x 6 VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • Low temperature drift (maximum):
    • Enhanced-grade: 2.5ppm/°C
    • High-grade: 3ppm/°C
    • Standard-grade: 8ppm/°C
  • High accuracy (maximum):
    • Enhanced-grade: 0.025%
    • High-grade: 0.05%
    • Standard-grade: 0.1%
  • Low noise:
    • Enhanced-grade: 0.5µVPP/V
    • High/Standard-grade: 3µVPP/V
  • Excellent long-term stability:
    • 22ppm after first 1000 hours (SOIC-8)
    • 50ppm after first 1000 hours (VSSOP-8)
  • Wide input voltage support:
    • Enhanced-grade: 42V
    • High/Standard-grade: 18V
  • High-output current: ±10mA
  • Temperature range: -40°C to 125°C
  • Low temperature drift (maximum):
    • Enhanced-grade: 2.5ppm/°C
    • High-grade: 3ppm/°C
    • Standard-grade: 8ppm/°C
  • High accuracy (maximum):
    • Enhanced-grade: 0.025%
    • High-grade: 0.05%
    • Standard-grade: 0.1%
  • Low noise:
    • Enhanced-grade: 0.5µVPP/V
    • High/Standard-grade: 3µVPP/V
  • Excellent long-term stability:
    • 22ppm after first 1000 hours (SOIC-8)
    • 50ppm after first 1000 hours (VSSOP-8)
  • Wide input voltage support:
    • Enhanced-grade: 42V
    • High/Standard-grade: 18V
  • High-output current: ±10mA
  • Temperature range: -40°C to 125°C

The REF50xx is a family of low-noise, low-drift, very high precision voltage references. These references are capable of both sinking and sourcing current, and have excellent line and load regulation.

Excellent temperature drift (2.5ppm/°C) and high accuracy (0.025%) are achieved using proprietary design techniques. These features, combined with very low flicker noise (0.5µVPP/V), make the REF50xx family an excellent choice for use in high-precision data acquisition systems. REF50 family is available in enhanced grade (REF50xxEI), high grade (REF50xxI) and standard grade (REF50xxAI). The reference voltages are offered in 8-pin SOIC and VSSOP packages and are specified from –40°C to 125°C.

The REF50xxEI supports wide supply voltage rating of 42V with ultra-low IQ of 280µA. The wide supply range allows for direct connection to the battery or field supply. This also protects the device in case of power supply IC failure.

The REF50xx is a family of low-noise, low-drift, very high precision voltage references. These references are capable of both sinking and sourcing current, and have excellent line and load regulation.

Excellent temperature drift (2.5ppm/°C) and high accuracy (0.025%) are achieved using proprietary design techniques. These features, combined with very low flicker noise (0.5µVPP/V), make the REF50xx family an excellent choice for use in high-precision data acquisition systems. REF50 family is available in enhanced grade (REF50xxEI), high grade (REF50xxI) and standard grade (REF50xxAI). The reference voltages are offered in 8-pin SOIC and VSSOP packages and are specified from –40°C to 125°C.

The REF50xxEI supports wide supply voltage rating of 42V with ultra-low IQ of 280µA. The wide supply range allows for direct connection to the battery or field supply. This also protects the device in case of power supply IC failure.

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Technical documentation

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Type Title Date
* Data sheet REF50xx Low-Noise, Very Low Drift, Wide VIN Precision Voltage Reference datasheet (Rev. L) PDF | HTML 18 Oct 2024
Application note Voltage Reference Selection and Design Tips For Data Converters (Rev. B) PDF | HTML 09 Jan 2024
Application note Analog Time Gain Control (ATGC) Solutions for TI’s Ultrasound AFE PDF | HTML 18 May 2023
Application note Stacking the REF50xx for High-Voltage References (Rev. B) PDF | HTML 25 Apr 2023
E-book Tips and tricks for designing with voltage references (Rev. A) 07 May 2021
Application note Long-Term Drift in Voltage References PDF | HTML 25 Mar 2021
Application note Low-Noise Negative Reference Design with REF5025 01 Dec 2019
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 28 Jun 2019
White paper Voltage reference selection basics white paper (Rev. A) 23 Oct 2018
Application brief Level Shifting Signals With Differential Amplifiers (Rev. A) 02 Apr 2018

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

DIP-ADAPTER-EVM — DIP adapter evaluation module

Speed up your op amp prototyping and testing with the DIP adapter evaluation module (DIP-ADAPTER-EVM), which provides a fast, easy and inexpensive way to interface with small surface-mount ICs. You can connect any supported op amp using the included Samtec terminal strips or wire them (...)

User guide: PDF
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Simulation model

REF5010 PSpice Model (Rev. A)

SLIM178A.ZIP (38 KB) - PSpice Model
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Simulation model

REF5010 TINA-TI Reference Design (Rev. A)

SLIM177A.TSC (127 KB) - TINA-TI Reference Design
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Simulation model

REF5010 TINA-TI Spice Model (Rev. A)

SLIM176A.ZIP (7 KB) - TINA-TI Spice Model
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Simulation model

Ultra-Low-Noise Time Gain Control (TGC) Circuit Using Different DAC Devices (Rev. A)

SBAM480A.ZIP (274 KB) - PSpice Model
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Design tool

ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.

The ADC-TO-VREF-SELECT tool enables the pairing of TI analog-to-digital converters (ADCs) and series voltage references. Users can select an ADC device and the desired reference voltage, and the tool will list up to two voltage reference recommendations.
Supported products & hardware

Supported products & hardware

Products
Series voltage references
REF2025 — 8-ppm/°C drift, low-power, dual-output Vref & Vref/2 voltage reference REF2030 — 3-V Vref, low-drift, low-power, dual-output Vref & Vref/2 voltage reference REF2033 — 3.3-V Vref, low-drift, low-power, dual-output Vref & Vref/2 voltage reference REF2041 — 4.1-V Vref, low-drift, low-power, dual-output Vref & Vref/2 voltage reference REF34-Q1 — Automotive, low-drift, low-power, small-footprint series voltage reference REF3425 — 2.5-V, low-drift, low-power, small-footprint series voltage reference REF3430 — 3-V, low-drift, low-power, small-footprint series voltage reference REF3433 — 3.3-V, low-drift, low-power, small-footprint series voltage reference REF3440 — 4.1-V, low-drift, low-power, small-footprint series voltage reference REF3450 — 5-V, low-drift, low-power, small-footprint series voltage reference REF35 — 650-nA quiescent current, 12-ppm/°C drift, ultra-low-power precision voltage reference REF35-Q1 — Automotive, 650-nA quiescent current, 15-ppm/°C drift, ultra-low-power precision voltage reference REF4132 — 12-ppm/°C low-noise low-power precision voltage reference REF5010 — 10V, 3-µVpp/V noise, 3-ppm/°C drift precision series voltage reference REF5020 — 2.048-V, 3-µVpp/V noise, 3-ppm/°C drift precision series voltage reference REF5020A-Q1 — Automotive, low-noise, very-low drift, precision 2.048-V series voltage reference REF5025 — 2.5V, 3µVpp/V noise, 3ppm/°C drift precision series voltage reference REF5025A-Q1 — Automotive, low-noise, very-low drift, precision 2.5-V series voltage reference REF5030 — 3-V, 3-µVpp/V noise, 3-ppm/°C drift precision series voltage reference REF5030A-Q1 — Automotive, low-noise, very-low drift, precision 3-V series voltage reference REF5040 — 4.096-V, 3-µVpp/V noise, 3-ppm/°C drift precision series voltage reference REF5045 — 4.5-V, 3-µVpp/V noise, 3-ppm/°C drift precision series voltage reference REF5045A-Q1 — Automotive, low-noise, very-low drift, precision 4.5-V series voltage reference REF5050 — 5-V, 3-µVpp/V noise, 3-ppm/°C drift precision series voltage reference REF5050A-Q1 — Automotive, low-noise, very-low drift, precision 5-V series voltage reference REF54 — 0.8ppm/°C drift (max), 0.11ppmp-p 1/f noise, 380μA current precision voltage reference REF70 — Ultra-high-precision voltage reference with low noise and low drift REF80 — Temperature-controlled buried-Zener reference with 0.05ppm/°C drift and <1ppm stability
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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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Reference designs

TIDA-01427 — 2.3 nV/√Hz, Differential, Time Gain Control (TGC) DAC Reference Design for Ultrasound

The TIDA-01427 reference design provides a solution for differential signal chain used for generating a time-varying control voltage (VCNTL) to drive multiple AFE devices in a parallel configuration. TI's low-noise analog front ends (AFEs) for medical ultrasound have a time gain control (TGC) (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIPD194 — Reference Design for Low-noise Precision Variable Voltage Reference

TIPD194 is a precision dynamic voltage reference source that is able to supply a voltage range from of ±10 V with a 16-bit resolution focusing on initial accuracy and low noise.
Design guide: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
SOIC (D) 8 Ultra Librarian
VSSOP (DGK) 8 Ultra Librarian
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