Datasheet > REF3425_V01

REF3425_V01

更新时间： 2024-02-12 06:40:59

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
29页	2462K
描述
REF34xx Low-Drift, Low-Power, Small-Footprint Series Voltage Reference

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REF3425_V01 数据手册

REF3425, REF3430, REF3433, REF3440, REF3450

www.ti.com

SBAS804C – SEPTEMBER 2017 – REVISED FEBRUARY 2021

REF34xx Low-Drift, Low-Power, Small-Footprint Series Voltage Reference

1 Features

3 Description

•

Initial accuracy: ±0.05% (maximum)

Temperature coefficient : 6 ppm/°C (maximum)

Operating temperature range: −40°C to +125°C

Output current: ±10 mA

Low quiescent current: 95 μA (maximum)

Wide input voltage: 12 V

Output 1/f noise (0.1 Hz to 10 Hz): 3.8 µV_p-p/V

Excellent long-term stability 25 ppm/1000 hrs

Multiple small footprint 6SOT-23 package pinouts:

REF34xx and REF34xxT

The REF34xx device is a low temperature drift

(6 ppm/°C), low-power, high-precision CMOS voltage

reference, featuring ±0.05% initial accuracy, low

operating current with power consumption less than

95 μA. This device also offers very low output noise of

3.8 μV_p-p/V, which enables its ability to maintain high

signal integrity with high-resolution data converters in

noise critical systems. With a small SOT-23 package,

REF34xx offers enhanced specifications and pin-to-

pin replacement for MAX607x and ADR34xx. The

REF34xx family is compatible to most of the ADC and

DAC such as ADS1287, ADUCM360, ADS1112.

2 Applications

Stability and system reliability are further improved by

the low output-voltage hysteresis of the device and

low long-term output voltage drift. Furthermore, the

small size and low operating current of the devices

(95 μA) can benefit portable and battery-powered

applications.

•

Data acquisition systems

Analog I/O modules

Field transmitters

Lab & field instrumentation

Battery test equipment

DC power supply, AC source, electronic load

Digital multimeters

REF34xx is specified for the wide temperature range

of −40°C to +125°C. Contact the TI sales

representative for additional voltage options.

Device Information

PART NAME

REF34xx

REF34xxT⁽²⁾

PACKAGE ⁽¹⁾

BODY SIZE (NOM)

2.90 mm × 1.60 mm

SOT-23 (6)

(1) For all available packages, see the orderable addendum at

the end of the data sheet

(2) Product Preview

10 ꢀ

0.4

0.36

+125°C

0.32

124 ꢀ

ADS1287

REF

Input Signal

1 nF

0.28

+25°C

-40°C

0.24

VIN

0.2

0.16

0.12

0.08

0.04

REF34xx

CIN

1µF

COUT

10 µF

Load Current (mA)

Simplified Schematic

D001

Dropout vs. Current Load Over Temperature

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

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intellectual property matters and other important disclaimers. UNLESS OTHERWISE NOTED, this document contains PRODUCTION

Product Folder Links: REF3425 REF3430 REF3433 REF3440 REF3450

DATA.

12 3 4 5 6 7...29

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与REF3425_V01相关器件

型号	品牌	获取价格	描述	数据表
REF3425_V02	TI	获取价格	REF34xx Low-Drift, Low-Power, Small-Footprint Series Voltage Reference
REF3425_V03	TI	获取价格	REF34xx Low-Drift, Low-Power, Small-Footprint Series Voltage Reference
REF3425-EP	TI	获取价格	增强型产品 2.5V 低温漂、低功耗串联电压基准
REF3425IDBVR	TI	获取价格	2.5V 低温漂、低功耗小型串联电压基准 \| DBV \| 6 \| -40 to 125
REF3425MDBVTEP	TI	获取价格	增强型产品 2.5V 低温漂、低功耗串联电压基准 \| DBV \| 6 \| -55 to 1
REF3425QDBVRQ1	TI	获取价格	REF34-Q1 Low-Drift, Low-Power, Small-Footprint Series Voltage References
REF3425QDGKRQ1	TI	获取价格	REF34-Q1 Low-Drift, Low-Power, Small-Footprint Series Voltage References
REF3425S-Q1	TI	获取价格	REF34-Q1 Low-Drift, Low-Power, Small-Footprint Series Voltage References
REF3425SQDBVRQ1	TI	获取价格	REF34-Q1 Low-Drift, Low-Power, Small-Footprint Series Voltage References
REF3425T	TI	获取价格	REF34xx Low-Drift, Low-Power, Small-Footprint Series Voltage Reference

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