company blog about TI REF35125 Ultra-Low-Power Precision Voltage Reference (650 nA/12 ppm/°C) – Genuine, In Stock — Suitable for Portable Medical Devices

Mingjiada Electronics | TI REF35125 Ultra-Low-Power Precision Voltage Reference (650 nA/12 ppm/°C) Genuine Parts in Stock—Suitable for Portable Medical Devices and Industrial Precision Measurement

Mingjiada Electronics maintains a long-term stock of TI’s (Texas Instruments) REF35125. This device belongs to TI’s REF35 series of nano-power precision series voltage references. With a typical quiescent current of 650 nA and an initial accuracy of ±0.05%, it achieves an excellent balance between ultra-low power consumption and high precision. It is specifically designed to provide a stable, reliable, and low-noise voltage reference for portable medical instruments, industrial process analysis, and precision data acquisition systems.

REF35125 Key Specifications

Manufacturer: Texas Instruments (TI)

Product Series: REF35

Output Voltage: 1.25 V (fixed)

Input Voltage Range: 1.5 V to 6 V (VREF + VDO to 6 V)

Output Current: +10 mA / −5 mA

Initial Accuracy: ±0.05% (maximum)

Temperature Coefficient: 12 ppm/°C (−40°C to 105°C, SOT-23 package) / 10 ppm/°C (−40°C to 85°C, WCSP package)

Quiescent Current: 650 nA (typical) / 2.6 µA (maximum per datasheet)

Shutdown current: 0.1 µA (typical)

Output 1/f noise (0.1 Hz–10 Hz): 3.3 ppm P-P

Long-term stability: 40 ppm @ 1,000 hours

Thermal drift: 70 ppm

Load regulation: 20 ppm/mA

Operating temperature range: −40°C to +125°C (functional operation: −55°C to +125°C)

Package options: SOT-23-6 (DBV) / 4-pin WCSP (YBH)

Environmental Compliance: RoHS-compliant, REACH-compliant

REF35125 Key Features

Nano-level power consumption design: With a typical quiescent current of 650 nA and a current consumption of only 0.1 µA in EN-pin shutdown mode, the REF35125 is an ideal choice for battery-powered and energy-harvesting applications, significantly extending the standby time and battery life of portable devices.

High Accuracy and Low Temperature Drift: Initial accuracy of ±0.05% combined with a temperature coefficient of 12 ppm/°C (SOT-23 package, −40°C to 105°C) provides a reliable reference source for precision sensors and 12–16-bit data converters.

Low-Noise Output: 1/f noise of only 3.3 ppm P-P in the 0.1 Hz to 10 Hz frequency range; when used with the NR pin, output noise can be further reduced to meet the stringent reference noise requirements of high-resolution ADCs and DACs.

Wide output current capability: Supports +10 mA/−5 mA output currents with a load regulation of 20 ppm/mA, providing a stable reference voltage for multiple loads while delivering excellent load transient response.

Compact Package Options: Available in both 6-pin SOT-23 and 4-pin WCSP packages. The WCSP package is approximately half the size of the SOT-23, making it ideal for portable device designs with extremely limited space.

Typical Applications

Combining ultra-low power consumption with high precision, the REF35125 is widely used in the following fields:

Portable Medical Devices: Battery-powered medical instruments, such as blood glucose monitors and portable patient monitors, rely on its nanoampere-level quiescent current to achieve long battery life while providing a high-precision reference for ADCs.

Industrial Process Analysis and Precision Measurement: Provides a stable reference for high-resolution data converters in flow transmitters, power quality analyzers, and process analysis instruments.

Servo Drive Control Modules: It provides a precise reference for the ADC in motor control loops, ensuring current sampling accuracy and system control performance.

Fault Indicators and Oscilloscopes: It serves as a voltage reference for the ADC/DAC in portable test instruments, ensuring measurement accuracy.

Optical Modules: In optical communication modules, it provides a low-noise reference for the internal ADC, supporting precise measurements of optical power and temperature.

Mingjiada Supply Information

Model Brand Package Part Number Stock Quantity Remarks

REF35125QDBVR TI SOT-23-6 26+ 3000 Brand new, original packaging

Mingjiada Electronics has specialized in TI precision analog devices for many years. We currently have ample inventory of the REF35125 series and support both small-batch sample requests and large-volume spot deliveries, offering a guarantee of brand-new, factory-sealed genuine products and one-stop order fulfillment services. For detailed quotes, please feel free to contact Mingjiada Electronics at any time.

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