Series voltage references
Maintain accurate output voltages for your signal-chain application
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High precision
Achieve stability across variable temperatures and voltages with low drift and high initial accuracy.
Dual output
Reduce errors, cost and solution size with two outputs (VREF and VREF/2).
Automotive
Leverage AEC-Q100-qualified series voltage references for automotive designs.
Design & development resources
ADC to series voltage reference selection tool
The ADC-TO-VREF-SELECT tool enables the pairing of TI analog-to-digital converters (ADCs) and series voltage references. Users can select an ADC device and the desired input voltage, and the tool will list the top three voltage reference recommendations. There is also an option to use (...)
REF35 evaluation module for 680-nA IQ, 6-ppm/°C drift, ultra-low-power precision voltage reference
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.
REF70 evaluation module for ultra-high-precision voltage reference with low noise and low drift
The REF70 evaluation module (EVM) is a platform for evaluating the REF70, which is an ultra-low-noise, high-precision voltage reference. REF70 offers an ultra-low 1/f noise of 0.23 ppmp-p during operation, while maintaining a very precise voltage output over temperature of 2 ppm/°C. REF70EVM (...)
New products
Automotive, 650-nA quiescent current, 15-ppm/°C drift, ultra-low-power precision voltage reference
Approx. price (USD) 1ku | 0.824
Power trends
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.
Featured products for low quiescent current (IQ)
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.
Discover featured applications
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 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 note
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 for 680-nA IQ, 6-ppm/°C drift, ultra-low-power precision voltage reference
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
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 for 680-nA IQ, 6-ppm/°C drift, ultra-low-power precision voltage reference
- 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
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