Datasheet > ADR1581

ADR1581

更新时间： 2024-11-01 04:04:39

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
12页	520K
描述
1.25 V Micropower, Precision Shunt Voltage Reference

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ADR1581 数据手册

1.25 V Micropower, Precision Shunt

Voltage Reference

ADR1581

PIN CONFIGURATION

FEATURES

Wide operating range: 60 μA to 10 mA

Initial accuracy: ±0.12ꢀ maximum

Temperature drift: ±±0 ppm/°C maximum

Output impedance: 0.± Ω maximum

Wideband noise (10 Hz to 10 kHz): 20 μV rms

Operating temperature range: −40°C to +8±°C

High ESD rating

ADR1581

V+

V–

NC (OR V–)

TOP VIEW

NC = NO CONNECT

Figure 1. SOT-23

4 kV human body model

400 V machine model

Compact, surface-mount SOT-23 package

APPLICATIONS

Portable, battery-powered equipment

Cellular phones, notebook computers, PDAs, GPSs,

and DMMs

Computer workstations

Suitable for use with a wide range of video RAMDACs

Smart industrial transmitters

PCMCIA cards

Automotive

3 V/± V, 8-bit to 12-bit data converters

–20

–10

TEMPERATURE DRIFT (ppm/°C)

GENERAL DESCRIPTION

Figure 2. Reverse Voltage Temperature Drift Distribution

The ADR1581¹is a low cost, 2-terminal (shunt), precision band

gap reference. It provides an accurate 1.250 V output for input

currents between 60 μA and 10 mA.

100

The superior accuracy and stability of the ADR1581 is made

possible by the precise matching and thermal tracking of on-

chip components. Proprietary curvature correction design

techniques have been used to minimize the nonlinearities in

the voltage output temperature characteristics. The ADR1581

is stable with any value of capacitive load.

The low minimum operating current makes the ADR1581 ideal

for use in battery-powered 3 V or 5 V systems. However, the wide

operating current range means that the ADR1581 is extremely

versatile and suitable for use in a wide variety of high current

applications.

–5

–4

–3

–2

–1

OUTPUT ERROR (mV)

Figure 3. Reverse Voltage Error Distribution

The ADR1581 is available in two grades, A and B, both of which

are provided in the SOT-23 package. Both grades are specified

over the industrial temperature range of −40°C to +85°C.

¹Protected by U.S. Patent No. 5,969,657; other patents pending.

Rev. 0

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registeredtrademarks arethe property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

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