Home Power management Voltage references Series voltage references

REF5040A-Q1

ACTIVE

Automotive, low-noise, very-low drift, precision 4.096-V series voltage reference

A newer version of this product is available

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 Improved flicker noise, temperature drift and initial accuracy

Product details

VO (V) 4.096 Initial accuracy (max) (%) 0.1 Temp coeff (max) (ppm/°C) 8 Vin (min) (V) 4.296 Vin (max) (V) 18 Iq (typ) (mA) 0.8 Rating Automotive TI functional safety category Functional Safety-Capable Features TRIM/NR pin LFN 0.1 to 10 Hz (typ) (µVPP) 12 Iout/Iz (max) (mA) 10 Operating temperature range (°C) -40 to 125
VO (V) 4.096 Initial accuracy (max) (%) 0.1 Temp coeff (max) (ppm/°C) 8 Vin (min) (V) 4.296 Vin (max) (V) 18 Iq (typ) (mA) 0.8 Rating Automotive TI functional safety category Functional Safety-Capable Features TRIM/NR pin LFN 0.1 to 10 Hz (typ) (µVPP) 12 Iout/Iz (max) (mA) 10 Operating temperature range (°C) -40 to 125
SOIC (D) 8 29.4 mm² 4.9 x 6
  • Qualified for Automotive Applications
  • Low Temperature Drift
    • Standard Grade: 8 ppm/°C (max)
  • High Accuracy
    • Standard Grade: 0.1% (max)
  • Low Noise: 3 µVPP/V
  • Excellent Long-Term Stability:
    • 5 ppm/1000 hr (typ) after 1000 hours
  • High Output Current: ±10 mA
  • Temperature Range: –40°C to 125°C
  • Qualified for Automotive Applications
  • Low Temperature Drift
    • Standard Grade: 8 ppm/°C (max)
  • High Accuracy
    • Standard Grade: 0.1% (max)
  • Low Noise: 3 µVPP/V
  • Excellent Long-Term Stability:
    • 5 ppm/1000 hr (typ) after 1000 hours
  • High Output Current: ±10 mA
  • Temperature Range: –40°C to 125°C

The REF50xxA-Q1 family of devices is low-noise, low-drift, very-high precision-voltage reference. These reference devices are capable of both sinking and sourcing, and are very robust with regard to line and load changes.

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 REF50xxA-Q1 family of devices ideal for use in high-precision data acquisition systems.

Each reference voltage is available in a standard-grade versions. The devices are offered in SO-8 packages and are specified from –40°C to 125°C.

The REF50xxA-Q1 family of devices is low-noise, low-drift, very-high precision-voltage reference. These reference devices are capable of both sinking and sourcing, and are very robust with regard to line and load changes.

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 REF50xxA-Q1 family of devices ideal for use in high-precision data acquisition systems.

Each reference voltage is available in a standard-grade versions. The devices are offered in SO-8 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
Similar functionality to the compared device
REF34-Q1 ACTIVE Automotive, low-drift, low-power, small-footprint series voltage reference Enhanced initial accuracy (0.05%) with lower temperature drift and lower quiescent current (95 µA)

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 8
Type Title Date
* Data sheet REF50xxA-Q1 Low-Noise, Very Low Drift, Precision Voltage Reference datasheet (Rev. H) PDF | HTML 24 Feb 2015
Application note Voltage Reference Selection and Design Tips For Data Converters (Rev. B) PDF | HTML 09 Jan 2024
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
Functional safety information REF50xxA-Q1 Functional Safety FIT Rate and Failure Mode Distribution 19 Dec 2019
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

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
Not available on TI.com
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 (...)
Package Pins Download
SOIC (D) 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