REF35-Q1
Automotive, 650-nA quiescent current, 15-ppm/°C drift, ultra-low-power precision voltage reference
REF35-Q1
- AEC-Q100 qualified with the following results:
- Device temperature grade 1: −40°C to 125°C ambient operating temperature range
- Ultra-low quiescent current:
- 650 nA (typical)
- Initial accuracy: ±0.05 % (maximum)
- Temperature coefficient:
- 15 ppm/°C maximum for −40°C to 125°C
- Output 1/f noise (0.1 Hz to 10 Hz): 3.3 ppm P-P
- NR pin to reduce noise
- EN pin to reduce shutdown current consumption
- Long-term stability: 30 ppm at 1k hour
- Specified temperature range: −40°C to +125°C
- Operating temperature range: −55°C to +125°C
- Output current: +10 mA, −5 mA
- Input voltage: V REF + V DO to 6 V
- Output voltage options:
- 1.2 V, 1.25 V, 1.8 V, 2.048 V, 2.5 V, 3.0 V, 3.3 V, 4.096 V, 5.0 V
- Small footprint 6-pin SOT−23 package
The REF35-Q1 is a family of nanopower, low-drift, high-precision series reference devices. The REF35-Q1 family features ±0.05 % initial accuracy with typical 650 nA power consumption. The temperature coefficient (15 ppm/ºC) and long-term stability (30 ppm at 1000 hours) of the device can help improve system stability and reliability. The low power consumption combined with high precision specifications are designed for a wide variety of low current applications.
The REF35-Q1 supplies up to 10 mA current with 3.3 ppm p-p noise and 20 ppm/mA load regulation. With this feature set, REF35-Q1 creates a strong low-noise, high accuracy power supply for precision sensors and 12–16b data converters.
The family is fully specified for operation from -40°C to 125°C and is functional over -55°C to 125°C.
The REF35-Q1 is available in wide output voltage variants starting from 1.20 V to 5.0 V. The device is offered in space saving SOT23-6 pin package. Contact the TI sales representative for available voltage options.
Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | REF35-Q1 Ultra Low-Power, High-Precision Voltage Reference datasheet | PDF | HTML | 09 Aug 2022 |
Functional safety information | REF35-Q1Functional Safety FIT Rate, FMD and Pin FMA | PDF | HTML | 17 Jul 2024 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
REF35EVM — 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.
ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.
Supported products & hardware
Products
Series voltage references
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
SOT-23 (DBV) | 6 | Ultra Librarian |
Ordering & quality
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- Lead finish/Ball material
- MSL rating/Peak reflow
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- Material content
- Qualification summary
- Ongoing reliability monitoring
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Support & training
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