REF35

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Referencia de tensión de precisión de potencia ultrabaja, corriente quiescente de 650 nA y deriva de

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Hoja de datos

document-pdfAcrobat REF35 Ultra Low-Power, High-Precision Voltage Reference datasheet (Rev. C) (Inglés) PDF | HTML

REF35

ACTIVO

Hoja de datos

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Detalles del producto

Rating

Catalog

VO (V)

1.024, 1.2, 1.25, 1.6, 1.7, 1.8, 2.048, 2.5, 3, 3, 3.3, 3.6, 4.096, 5

Temp coeff (max) (ppm/°C)

12

Initial accuracy (max) (%)

0.05

Features

Enable pin, Noise-reduction pin

Iout/Iz (max) (mA)

10

Vin (min) (V)

1.7

Vin (max) (V)

6

Iq (typ) (mA)

0.00065, 0.00068

LFN 0.1 to 10 Hz (typ) (µVPP)

8.2

Operating temperature range (°C)

-40 to 125

Shutdown current (ISD) (typ) (µA)

0.1

Rating

Catalog

VO (V)

1.024, 1.2, 1.25, 1.6, 1.7, 1.8, 2.048, 2.5, 3, 3, 3.3, 3.6, 4.096, 5

Temp coeff (max) (ppm/°C)

12

Initial accuracy (max) (%)

0.05

Features

Enable pin, Noise-reduction pin

Iout/Iz (max) (mA)

10

Vin (min) (V)

1.7

Vin (max) (V)

6

Iq (typ) (mA)

0.00065, 0.00068

LFN 0.1 to 10 Hz (typ) (µVPP)

8.2

Operating temperature range (°C)

-40 to 125

Shutdown current (ISD) (typ) (µA)

0.1

SOT-23 (DBV)

6

8.12 mm² (2.9 mm × 2.8 mm)

DSBGA (YBH)

4

0.64 mm² (0 mm × 0 mm)

Ultra-low quiescent current:
- 650nA (typical)
Initial accuracy: ±0.05% (maximum)
Temperature coefficient (maximum):
- 12ppm/°C (−40°C to 105°C, SOT23 package)
- 10ppm/°C (−40°C to 85°C, WCSP package)
Output 1/f noise (0.1Hz to 10Hz): 3.3ppmP-P
NR pin to reduce noise
EN pin to reduce shutdown current consumption
Long-term stability: 40ppm at 1k hour
Thermal hysteresis: 70ppm
Operating temperature range: −55°C to +125°C
Output current: +10mA, −5mA
Input voltage: VREF + VDO to 6V
Output voltage options:
- 1.024V, 1.2V, 1.25V, 1.6V, 1.8V, 2.048V, 2.5V, 3.0V, 3.3V, 4.096V, 5.0V
Small footprint 6-pin SOT−23 package
Smallest footprint 4-pin WCSP package

Ultra-low quiescent current:
- 650nA (typical)
Initial accuracy: ±0.05% (maximum)
Temperature coefficient (maximum):
- 12ppm/°C (−40°C to 105°C, SOT23 package)
- 10ppm/°C (−40°C to 85°C, WCSP package)
Output 1/f noise (0.1Hz to 10Hz): 3.3ppmP-P
NR pin to reduce noise
EN pin to reduce shutdown current consumption
Long-term stability: 40ppm at 1k hour
Thermal hysteresis: 70ppm
Operating temperature range: −55°C to +125°C
Output current: +10mA, −5mA
Input voltage: VREF + VDO to 6V
Output voltage options:
- 1.024V, 1.2V, 1.25V, 1.6V, 1.8V, 2.048V, 2.5V, 3.0V, 3.3V, 4.096V, 5.0V
Small footprint 6-pin SOT−23 package
Smallest footprint 4-pin WCSP package

The REF35 is a family of nanopower, low-drift, high-precision series reference devices. The REF35 family features ±0.05% initial accuracy with 650nA typical power consumption. The temperature coefficient (12ppm/°C) and long-term stability (40ppm 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 portable and low current applications.

The REF35 supplies up to 10mA current with 3.3ppmp-p noise and 20ppm/mA load regulation. With this feature set, REF35 creates a strong low-noise, high accuracy power supply for precision sensors and 12–16b data converters.

The family is specified for operation from –40°C to 105°C and is functional over –55°C to 125°C. The wide temperature is suited for industrial applications.

REF35 is available in wide output voltage variants starting from 1.024V to 5.0V. The device is offered in a space-saving, 6-pin SOT-23 and 4-pin WCSP package options. Contact your local TI sales representative for available voltage and package options.

The REF35 is a family of nanopower, low-drift, high-precision series reference devices. The REF35 family features ±0.05% initial accuracy with 650nA typical power consumption. The temperature coefficient (12ppm/°C) and long-term stability (40ppm 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 portable and low current applications.

The REF35 supplies up to 10mA current with 3.3ppmp-p noise and 20ppm/mA load regulation. With this feature set, REF35 creates a strong low-noise, high accuracy power supply for precision sensors and 12–16b data converters.

The family is specified for operation from –40°C to 105°C and is functional over –55°C to 125°C. The wide temperature is suited for industrial applications.

REF35 is available in wide output voltage variants starting from 1.024V to 5.0V. The device is offered in a space-saving, 6-pin SOT-23 and 4-pin WCSP package options. Contact your local TI sales representative for available voltage and package options.

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Documentación principal	Tipo	Título	Opciones de formato	Fecha
*	Hoja de datos	REF35 Ultra Low-Power, High-Precision Voltage Reference datasheet (Rev. C)	PDF \| HTML	13/09/2024
	Nota sobre la aplicación	Precision Current Sources and Sinks Using Voltage References (Rev. A)	PDF \| HTML	15/04/2026
	Informe	Simplifying Power Architectures With Low-Noise Power Devices (Rev. A)	PDF \| HTML	4/11/2024
	Artículo técnico	Accurately measure vital signs with low Iq and a small form factor (Rev. B)	PDF \| HTML	18/04/2024
	Nota sobre la aplicación	Voltage Reference Selection and Design Tips For Data Converters (Rev. B)	PDF \| HTML	9/01/2024
	Informe	Simplifying Power Conversion in High-Voltage Systems	PDF \| HTML	9/11/2023
	Libro electrónico	Tips and tricks for designing with voltage references (Rev. A)		7/05/2021
	Informe	Simplifying Signal Chain Design for High Performance in Small Systems		22/10/2020
	Application brief	Voltage Reference Solutions in Motor Control Drives		29/07/2019
	Informe	Voltage reference selection basics white paper (Rev. A)		23/10/2018
	Analog Design Journal	Getting the most out of your instrumentation amplifier design		10/10/2005

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

REF35EVM — Módulo de evaluación REF35

El módulo de evaluación (EVM) REF35 es una plataforma para desarrollar la referencia de tensión de potencia ultrabaja REF35. REF35 tiene una deriva de temperatura de 10 ppm/°C (máx.) y se usa principalmente como referencia de voltaje de precisión para convertidores de datos de bajo consumo.

Guía del usuario: PDF | HTML

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Modelo de simulación

REF35102 PSpice Model

SNAM282.ZIP (24 KB) - Modelo PSpice

Productos y hardware compatibles

Encapsulado	Pines	Símbolos CAD, huellas y modelos 3D
SOT-23 (DBV)	6	Ultra Librarian
DSBGA (YBH)	4	Ultra Librarian

REF35

Referencia de tensión de precisión de potencia ultrabaja, corriente quiescente de 650 nA y deriva de

REF35

Detalles del producto

Documentación técnica

Diseño y desarrollo

REF35EVM — Módulo de evaluación REF35

ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.

TIDA-010961 — Diseño de ref. de codif. angular inductivo absoluto, alta resolución, baja latencia y baja potencia

TIDA-010982 — Plataforma de transmisor de campo, diseño de referencia de interfaz con suministro bucle 4mA a 20mA

Pedidos y calidad

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

Serie de videos

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