Series voltage references
Maintain accurate output voltages for your signal-chain application
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Our high-precision and low-noise series voltage references are stable across a wide temperature range. We also offer series voltage references with low-power consumption and small packages for battery-powered and space-constrained applications. Many of our series voltage references are AEC-Q100 qualified for automotive applications.
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High precision
Low IQ
Small package
Dual output
Automotive
Voltage reference highlights
Ultra-precise references for test and measurement equipment
The precision voltage reference appears at two critical points in the PMU measurement chain—as the DAC reference (determining forcing accuracy) and as the ADC reference (determining measurement accuracy). Reference errors at either point directly degrade system performance because these errors are systematic, propagate through every measurement, and cannot be calibrated out. TI's ultra-precise voltage references are key to minimize these errors.
Benefits of TI's ultra-precise voltage references:
- Ultra-low temperature drift
- Nearly 0 ppm long-term stability (after initial drift)
- 0.12 ppm p-p 1/f noise
The benefits of extreme precision from buried Zener technology in calibration (Rev. B)
Voltage Reference Selection and Design Tips For Data Converters (Rev. B)
Low-noise, highly linear digital multimeter and data acquisition signal chain reference design
Low quiescent current (IQ)
Minimize power consumption and extend battery life with low quiescent current (IQ) series references. Our broad portfolio of low-IQ series voltage references helps minimize power losses in all systems and obtain the most run time from battery-operated devices like blood glucose monitors, wireless headsets and pressure transmitters. Our small form-factor ICs help your applications achieve low standby power, while lowering system cost.
Low noise & precision
Achieve reliable stability for variable temperatures and voltages with high-precision series references. Our precision series voltage references offer best-in-class performance for many demanding industrial and automotive applications.
Technical resources
Choosing the Right Voltage Reference for Your Automotive Application
Voltage Reference Overview for ADC
Important Parameters of a Voltage Reference
Discover featured applications
Elevate the accuracy and performance of your test and measurement designs with our precision references
Our precision series references provide best-in-class noise, temperature coefficient and long-term drift for test and measurement applications such as automated test equipment, electronic lab and field test equipment, and analytic instrumentations.
Benefits:
- Noise as low as 0.23 ppm
- Accuracy as low as ±0.025%
- 2 ppm/°C temperature drift
Featured resources
- TIDM-CONNECTED-ETHERNET – Connected Ethernet, USB, and LCD Reference Design
- TIPD164 – Analog Input Module for Industrial Outputs and Temperature Sensors Reference Design
- TIPD159 – Voltage-Mode Multiplying DAC Reference Design
Elevate your HEV/EV signal-chain designs with series voltage references that don't compromise on precision
For accurate and reliable real-time system diagnostics, next-generation hybrid electric vehicles (HEVs) and EVs require precision voltage references for data conversion. We offer high-precision solutions to measure critical system parameters with best-in-class power consumption, noise and temperature drift.
Benefits:
- Low temperature drift (to 6 ppm/°C with the REF34-Q1)
- Microampere power consumption
- An optional ENABLE pin saves power by setting a shutdown mode to consume 3 µA of standby current
Featured resources
- TIDA-00753 – Three Phase AC Current Measurements Using Current Transformer Reference Design
- TIDA-020018 – Automotive shunt-based isolated current sensor reference design for DC/DC and OBC applications
- PMP22650 – GaN-based, 6.6-kW, bidirectional, onboard charger reference design
- REF5025A-Q1 – Automotive, low-noise, very-low drift, precision 2.5-V series voltage reference
- REF34-Q1 – Automotive, low-drift, low-power, small-footprint series voltage reference
- REF4132-Q1 – Automotive 12-ppm/°C low-noise low-power precision voltage reference
- Choosing the Right Voltage Reference for Your Automotive Application – Application brief
Bring accuracy to the forefront by adding series voltage references to your factory automation designs
In factory automation, current and voltage fluctuations may cause system faults and signal transmission failures. A series voltage reference enables quality analog signal measurements from the data converters in programmable logic controller, field transmitter or industrial PC designs.
Benefits:
- Adjustable devices offered in multiple output voltages
- Low temperature drift and quiescent current (IQ)
- Shutdown mode enables ultra-low IQ consumption
Featured resources
- TIDA-00468 – Optimized Latency, Power and Memory Footprint Thermocouple Sensing Front-end Reference Design
- REF35EVM – REF35 evaluation module
- ADS1148EVM-PDK – ADS1148 performance demonstration kit for 16-bit 2-kSPS ADC with PGA for sensor measurement
- Low-Noise Negative Reference Design with REF5025 – Application note
Maximize measurement accuracy by adding a high-precision series voltage reference to your body control modules
Preserve stability in body control modules and automotive gateways across system or environmental changes by adding a series voltage reference to your data converters. Take advantage of our low-noise and high-precision references in small packages.
Benefits:
- Low temperature drift (to 6 ppm/°C with the REF34-Q1)
- Microampere power consumption
- An optional ENABLE pin saves power by setting a shutdown mode to consume 3 µA of standby current
Featured resources
- REF34-Q1 – Automotive, low-drift, low-power, small-footprint series voltage reference
- REF5025A-Q1 – Automotive, low-noise, very-low drift, precision 2.5-V series voltage reference
- Choosing the Right Voltage Reference for Your Automotive Application – Application brief
Pair series voltage references with data converters for high-precision measurement in grid infrastructures
Data converters are essential to every grid instructure application, including electric vehicle charging stations, smart meters, solar energy systems and residential breakers. Our porfolio of data converter voltage references can take your design to new heights.
Benefits:
- A large selection of voltage references to pair with 10- to 24-bit data converters
- Thermal drift as low as 25 ppm at 1k hr and 2 ppm/°C
- Peak-to-peak noise as low as 0.23 ppm
Featured resources
- TIDA-00119 – 12-Bit, 8 Channel, Integrated Analog Input module for Programmable Logic Controllers (PLC)
- TIDA-00171 – Isolated Current Shunt and Voltage Measurement Reference Design for Motor Drives
- TIDM-SERVODRIVE – Industrial Servo Drive and AC Inverter Drive Reference Design
- REF35EVM – REF35 evaluation module
Reach new levels in power and noise requirements for medical applications using precision or nanopower series voltage references
Series voltage references extract highly accurate measurements from the analog front end of medical applications. Our portfolio enables battery-powered solutions, noise-sensitive solutions, and everything in between.
Benefits:
- The REF35 saves space in a small-outline transistor (SOT)-23-6 package with ultra-low quiescent current; low drift; and 11 voltage variants, from 1.024 V to 5.0 V
- The REF70 elevates noise-sensitive medical imaging applications by pairing with high-resolution data converters, offering low noise in both ceramic and plastic packages
Featured resources
Design & development resources
ADC/DAC-Voltage Reference Selection Tool and Error Calculator
REF35 evaluation module
The REF35 evaluation module (EVM) is a platform for developing the REF35 ultra-low-power voltage reference. REF35 has a 10-ppm/°C (max) temperature drift and is used primarily as a precision voltage reference for low-power data converters.
REF81 evaluation module
New products
15 ppm°/C drift, 27uA Iq in SOT-23-3 package series voltage reference
Approx. price (USD) 1ku | 0.39
Temperature-controlled buried-Zener reference with 0.05ppm/°C drift and <1ppm stability
Approx. price (USD) 1ku | 84.86