REF35

AKTIV

Extrem energieeffiziente Präzisionsspannungsreferenz mit 650 Na Ruhestrom, 12 ppm/Grad C Drift

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Datenblatt

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

REF35

AKTIV

Datenblatt

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Produktdetails

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)

Initial accuracy (max) (%)

0.05

Features

Enable pin, Noise-reduction pin

Iout/Iz (max) (mA)

Vin (min) (V)

1.7

Vin (max) (V)

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)

Initial accuracy (max) (%)

0.05

Features

Enable pin, Noise-reduction pin

Iout/Iz (max) (mA)

Vin (min) (V)

1.7

Vin (max) (V)

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

DSBGA (YBH)

0.64 mm² 0.8 x 0.8

SOT-23 (DBV)

8.12 mm² 2.9 x 2.8

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 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.

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Top-Dokumentation	Typ	Titel	Format-Optionen	Datum
*	Data sheet	REF35 Ultra Low-Power, High-Precision Voltage Reference datasheet (Rev. C)	PDF \| HTML	13 Sep 2024
	White paper	Simplifying Power Architectures With Low-Noise Power Devices (Rev. A)	PDF \| HTML	04 Nov 2024
	Technical article	Accurately measure vital signs with low Iq and a small form factor (Rev. B)	PDF \| HTML	18 Apr 2024
	Application note	Voltage Reference Selection and Design Tips For Data Converters (Rev. B)	PDF \| HTML	09 Jan 2024
	White paper	Simplifying Power Conversion in High-Voltage Systems	PDF \| HTML	09 Nov 2023
	E-book	Tips and tricks for designing with voltage references (Rev. A)		07 Mai 2021
	White paper	Simplifying Signal Chain Design for High Performance in Small Systems		22 Okt 2020
	Application note	Precision Current Sources and Sinks Using Voltage References		30 Jun 2020
	Application brief	Voltage Reference Solutions in Motor Control Drives		29 Jul 2019
	White paper	Voltage reference selection basics white paper (Rev. A)		23 Okt 2018
	Analog Design Journal	Getting the most out of your instrumentation amplifier design		10 Okt 2005

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

Evaluierungsplatine

REF35EVM — REF35 – Evaluierungsmodul

Das Evaluierungsmodul (EVM) REF35 ist eine Plattform zum Entwickeln der extrem energieeffizienten Spannungsrefernz REF35. Das REF35 weist eine Temperaturdrift von 10 ppm/°C (max.) auf und wird in erster Linie als eine Präzisionsspannungsreferenz für energieeffiziente Datenwandler verwendet.

Benutzerhandbuch: PDF | HTML

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Simulationsmodell

REF35102 PSpice Model

SNAM282.ZIP (24 KB) - PSpice Model

Gehäuse	Pins	CAD-Symbole, Footprints und 3D-Modelle
DSBGA (YBH)	4	Ultra Librarian
SOT-23 (DBV)	6	Ultra Librarian

REF35

Extrem energieeffiziente Präzisionsspannungsreferenz mit 650 Na Ruhestrom, 12 ppm/Grad C Drift

REF35

Produktdetails

Technische Dokumentation

Design und Entwicklung

REF35EVM — REF35 – Evaluierungsmodul

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

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

Serienspannungsreferenzen

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Highspeed-ADCs (≥ 10 MSPS)

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