Home Power management Voltage references Series voltage references

REF5025

ACTIVE

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

A newer version of this product is available

open-in-new Compare alternates
Pin-for-pin with same functionality to the compared device
NEW REF54 ACTIVE 0.8ppm/°C drift (max), 0.11ppmp-p 1/f noise, 380μA current precision voltage reference Offers 5x higher accuracy (0.02%), 10x lower drift (0.8ppm/C) with minimal noise (0.11ppm p-p) and power consumption (380uA)

Product details

VO (V) 2.5 Initial accuracy (max) (%) 0.05 Temp coeff (max) (ppm/°C) 3 Vin (min) (V) 2.7 Vin (max) (V) 18 Iq (typ) (mA) 0.8 Rating Catalog Features TRIM/NR pin LFN 0.1 to 10 Hz (typ) (µVPP) 7.5 Iout/Iz (max) (mA) 10 Operating temperature range (°C) -40 to 125
VO (V) 2.5 Initial accuracy (max) (%) 0.05 Temp coeff (max) (ppm/°C) 3 Vin (min) (V) 2.7 Vin (max) (V) 18 Iq (typ) (mA) 0.8 Rating Catalog Features TRIM/NR pin LFN 0.1 to 10 Hz (typ) (µVPP) 7.5 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:
    • High-grade: 3 ppm/°C (maximum)
    • Standard-grade: 8 ppm/°C (maximum)
  • High accuracy:
    • High-grade: 0.05% (maximum)
    • Standard-grade: 0.1% (maximum)
  • Low noise: 3 µV PP/V
  • Excellent long-term stability:
    • 22 ppm after first 1000 hours (SOIC-8)
    • 50 ppm after first 1000 hours (VSSOP-8)
  • High-output current: ±10 mA
  • Temperature range: –40°C to 125°C
  • Low temperature drift:
    • High-grade: 3 ppm/°C (maximum)
    • Standard-grade: 8 ppm/°C (maximum)
  • High accuracy:
    • High-grade: 0.05% (maximum)
    • Standard-grade: 0.1% (maximum)
  • Low noise: 3 µV PP/V
  • Excellent long-term stability:
    • 22 ppm after first 1000 hours (SOIC-8)
    • 50 ppm after first 1000 hours (VSSOP-8)
  • High-output current: ±10 mA
  • 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 (3 ppm/°C) and high accuracy (0.05%) are achieved using proprietary design techniques. These features, combined with very low noise, make the REF50xx family an excellent choice for use in high-precision data acquisition systems.

Each reference voltage is available in both high grade (REF50xxIDGK and REF50xxID) and standard grade (REF50xxAIDGK and REF50xxAID). The reference voltages are offered in 8-pin VSSOP and SOIC packages, and are specified from –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 (3 ppm/°C) and high accuracy (0.05%) are achieved using proprietary design techniques. These features, combined with very low noise, make the REF50xx family an excellent choice for use in high-precision data acquisition systems.

Each reference voltage is available in both high grade (REF50xxIDGK and REF50xxID) and standard grade (REF50xxAIDGK and REF50xxAID). The reference voltages are offered in 8-pin VSSOP and SOIC packages, and are specified from –40°C to 125°C.

Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Same functionality with different pin-out to the compared device
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.

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 10
Type Title Date
* Data sheet REF50xx Low-Noise, Very Low Drift, Precision Voltage Reference datasheet (Rev. K) PDF | HTML 15 Jun 2023
Application note Voltage Reference Selection and Design Tips For Data Converters (Rev. B) PDF | HTML 09 Jan 2024
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
Circuit design Circuit showing overstress protection on ADC with integrated analog front end 27 Nov 2018
White paper Voltage reference selection basics white paper (Rev. A) 23 Oct 2018
EVM User's guide DAC8562TEVM User's Guide 07 Oct 2015

Design & development

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

Evaluation board

ADS1148EVM-PDK — ADS1148 performance demonstration kit for 16-bit 2-kSPS ADC with PGA for sensor measurement

The ADS1148 evaluation module (EVM) performance demonstration kit (PDK) is an platform for evaluating the ADS1148 eight-channel, 16-bit, high-precision delta-sigma (ΔΣ) analog-to-digital converter (ADC). The EVM is designed to easily accept many types of analog temperature sensors (...)

User guide: PDF | HTML
Not available on TI.com
Evaluation board

ADS1248EVM-PDK — ADS1248 performance demonstration kit for 24-bit, 2-kSPS, eight-channel delta-sigma ADC

The ADS1248 evaluation module (EVM) performance demonstration kit (PDK) is an platform for evaluating the ADS1248 eight-channel, 24-bit, high-precision delta-sigma (ΔΣ) analog-to-digital converter (ADC). The EVM is designed to easily accept many types of analog temperature sensors, (...)

User guide: PDF | HTML
Evaluation board

ADS124S08EVM — ADS124S08 evaluation module

The ADS124S08EVM is a platform for evaluation of the ADS124S08 analog-to-digital converter (ADC). The ADS124S08 is a 24-bit, 4kSPS, 12 channel, low-power Delta-Sigma ADC for sensor measurement and process control applications. The ADS124S08 also includes a highly-accurate oscillator and excellent (...)
User guide: PDF
Evaluation board

ADS1282EVM-CVAL — ADS1282-SP radiation-tolerant evaluation module

The ADS1282-SP EVM is a compact evaluation kit for evaluating the ADS1282-SP, a radiation-tolerant, extremely high-performance, dual-channel ADC. The ADS1282-SP EVM plugs directly to the MSP430FR5959 launchpad (not included with ADS1282-SP EVM) which connects to PC via USB. Complete evaluation (...)

User guide: PDF
Not available on TI.com
Evaluation board

ADS8686SEVM-PDK — ADS8686S 16-channel 16-bit 1-MSPS dual simultaneous-sampling ADC performance demonstration kit (PDK)

The ADS8686S evaluation module (EVM) performance demonstration kit (PDK) is a platform for evaluating the ADS8686S dual simultaneous-sampling analog-to-digital converter (ADC) with an integrated analog front end (AFE).

ADS8686SEVM-PDK includes the ADS8686SEVM board and a precision host interface (...)

User guide: PDF
Not available on TI.com
Evaluation board

ADS9224REVM-PDK — ADS9224R dual-channel simultaneous-sampling SAR ADC performance demonstration kit (PDK)

The ADS9224R evaluation module (EVM) performance demonstration kit (PDK) is a platform for evaluating the performance of the ADS9224R successive-approximation register (SAR) analog-to-digital converter (ADC), which is a fully-differential input, 16-bit, 3-MSPS device. ADS9224REVM-PDK (...)

User guide: PDF
Not available on TI.com
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
Not available on TI.com
Evaluation board

DLPNIRSCANEVM — DLP® NIRscan™ Evaluation Module

 

The DLP NIRscan is a complete evaluation module (EVM) to design a high performance, affordable near-infrared spectrometer.  This flexible tool contains everything a designer needs to start developing a DLP-based spectrometer right out of the box.  The EVM features the DLP 0.45 WXGA NIR (...)

User guide: PDF
Not available on TI.com
Development kit

EVMK2GX — 66AK2Gx 1GHz evaluation module

The EVMK2GX (also known as "K2G") 1GHz evaluation module (EVM) enables developers to immediately start evaluating the 66AK2Gx processor family, and to accelerate the development of audio, industrial motor control, smart grid protection and other high reliability, real-time compute intensive (...)

User guide: PDF
Not available on TI.com
Development kit

EVMK2GXS — 66AK2Gx (K2G) 1GHz High-Secure Evaluation Module

The K2G 1GHz High Secure Evaluation Module (EVM) enables developers to start  evaluating and testing the programming of the  high secure developmental version of the  66AK2Gx processor, and to accelerate the next stage of secure boot product development of audio and industrial real (...)

User guide: PDF
Simulation model

REF5025 PSpice Model (Rev. A)

SLIM163A.ZIP (39 KB) - PSpice Model
Simulation model

REF5025 TINA-TI Reference Design (Rev. A)

SLIM162A.TSC (134 KB) - TINA-TI Reference Design
Simulation model

REF5025 TINA-TI Spice Model (Rev. A)

SLIM161A.ZIP (7 KB) - TINA-TI Spice Model
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 (...)

Many TI reference designs include the REF5025

Use our reference design selection tool to review and identify designs that best match your application and parameters.

Package Pins Download
SOIC (D) 8 View options
VSSOP (DGK) 8 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos