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REF3220

ACTIVE

2.048 4ppm/°C, 100-µA, 6-pin SOT-23 series (bandgap) voltage reference

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REF35 ACTIVE 650-nA quiescent current, 12-ppm/°C drift, ultra-low-power precision voltage reference 680-nA ultra-low-power, wide OTP programmable-voltage option from 1.024 V to 5 V and high precision at 0.05% intial accuracy and 6ppm/°C drift.

Product details

VO (V) 2.048 Initial accuracy (max) (%) 0.2 Temp coeff (max) (ppm/°C) 20 Vin (min) (V) 2.098 Vin (max) (V) 5.5 Iq (typ) (mA) 0.1 Rating Catalog Features Enable pin LFN 0.1 to 10 Hz (typ) (µVPP) 27 Iout/Iz (max) (mA) 10 Operating temperature range (°C) -40 to 125
VO (V) 2.048 Initial accuracy (max) (%) 0.2 Temp coeff (max) (ppm/°C) 20 Vin (min) (V) 2.098 Vin (max) (V) 5.5 Iq (typ) (mA) 0.1 Rating Catalog Features Enable pin LFN 0.1 to 10 Hz (typ) (µVPP) 27 Iout/Iz (max) (mA) 10 Operating temperature range (°C) -40 to 125
SOT-23 (DBV) 6 8.12 mm² 2.9 x 2.8
  • Excellent Specified Drift Performance:
    • 7ppm/°C (max) at 0°C to +125°C
    • 20ppm/°C (max) at –40°C to +125°C
  • Microsize Package: SOT23-6
  • High Output Current: ±10mA
  • High Accuracy: 0.01%
  • Low Quiescent Current: 100µA
  • Low Dropout: 5mV
  • Excellent Specified Drift Performance:
    • 7ppm/°C (max) at 0°C to +125°C
    • 20ppm/°C (max) at –40°C to +125°C
  • Microsize Package: SOT23-6
  • High Output Current: ±10mA
  • High Accuracy: 0.01%
  • Low Quiescent Current: 100µA
  • Low Dropout: 5mV

The REF32xx is a very low drift, micropower, low-dropout, precision voltage reference family available in the tiny SOT23-6 package.

The small size and low power consumption (120&micr;A max) of the REF32xx make it ideal for portable and battery-powered applications. This reference is stable with any capacitive load.

The REF32xx can be operated from a supply as low as 5mV above the output voltage, under no load conditions. All models are specified for the wide temperature range of –40°C to +125°C.

The REF32xx is a very low drift, micropower, low-dropout, precision voltage reference family available in the tiny SOT23-6 package.

The small size and low power consumption (120&micr;A max) of the REF32xx make it ideal for portable and battery-powered applications. This reference is stable with any capacitive load.

The REF32xx can be operated from a supply as low as 5mV above the output voltage, under no load conditions. All models are specified for the wide temperature range of –40°C to +125°C.

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REF3425 ACTIVE 2.5-V, 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

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Type Title Date
* Data sheet 4ppm/°C, 100µA, SOT23-6 Series Voltage Reference datasheet (Rev. C) 22 Jun 2011
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
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.

Simulation model

REF3220 PSpice Model (Rev. B)

SBVC016B.ZIP (37 KB) - PSpice Model
Simulation model

REF3220 TINA-TI Reference Design (Rev. D)

SBVC010D.ZIP (6 KB) - TINA-TI Reference Design
Simulation model

REF3220 TINA-TI Spice Model (Rev. A)

SBVM008A.ZIP (6 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 (...)
Reference designs

TIDA-00561 — Wireless pH Sensor Transmitter (DevPack for SensorTag) Reference Design

TIDA-00561 shows how to build an industrial-grade wireless pH transmitter for process control. This reference design includes a designed pH front-end which can be connected directly via its onboard connector to most pH probes used in process control. The performance data was tested and (...)
Design guide: PDF
Schematic: PDF
Package Pins Download
SOT-23 (DBV) 6 View options

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