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Product details

Parameters

VO (V) 10 Initial accuracy (Max) (%) 0.05 Temp coeff (Max) (ppm/ degree C) 3 Rating Catalog Vin (Min) (V) 10.2 Vin (Max) (V) 18 Iq (Typ) (uA) 800 Features TRIM/NR pin Iout/Iz (Max) (mA) 10 Operating temperature range (C) -40 to 125 open-in-new Find other Series voltage references

Package | Pins | Size

SOIC (D) 8 19 mm² 3.91 x 4.9 VSSOP (DGK) 8 15 mm² 3 x 4.9 open-in-new Find other Series voltage references

Features

  • Low temperature drift:
    • High-grade: 3 ppm/°C (Max)
    • Standard-grade: 8 ppm/°C (Max)
  • High Accuracy:
    • High-grade: 0.05% (Max)
    • Standard-rade: 0.1% (Max)
  • Low noise: 3 µVPP/V
  • Excellent long-term stability:
    • 50 ppm/1000 hr (Typ) First 1000 hours (VSSOP)
    • 25 ppm/1000 hr (Typ) Second 2000 hours (VSSOP)
  • High-Output Current: ±10 mA
  • Temperature range: –40°C to 125°C

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Description

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 ideal 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.

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Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet REF50xx Low-Noise, Very Low Drift, Precision Voltage Reference datasheet (Rev. I) Feb. 17, 2020
White papers Voltage Supervisor and Reset ICs: Tips, Tricks and Basics Jun. 28, 2019
White papers Voltage reference selection basics white paper (Rev. A) Oct. 23, 2018
Application notes Level Shifting Signals With Differential Amplifiers (Rev. A) Apr. 02, 2018
White papers Tips and tricks for designing with voltage references May 30, 2017
Technical articles Understanding voltage references: level shift of precision voltage references May 15, 2015
Technical articles Understanding Voltage References: Using a Shunt Reference as a Comparator May 12, 2015
Technical articles Understanding Voltage References: How to achieve shunt reference flexibility with series reference precision May 05, 2015
Application notes Stacking the REF50xx for High-Voltage References May 29, 2013

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
Description

Speed up your op amp prototyping and testing with the 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 directly to existing circuits.

The (...)

Features
  • Simplifies prototyping of SMT IC’s
  • Supports 6 common package types
  • Low Cost

Design tools & simulation

SIMULATION MODELS Download
SLIM176A.ZIP (7 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SLIM177A.TSC (127 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SLIM178A.ZIP (38 KB) - PSpice Model
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

Reference designs

REFERENCE DESIGNS Download
2.3 nV/√Hz, Differential, Time Gain Control (TGC) DAC Reference Design for Ultrasound
TIDA-01427 — 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 (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Reference Design for Low-noise Precision Variable Voltage Reference
TIPD194 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.
document-generic Schematic document-generic User guide
Design files

CAD/CAE symbols

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

Ordering & quality

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