Datasheet > REF198GRU-REEL7

REF198GRU-REEL7

更新时间： 2024-11-14 03:39:55

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
28页	659K
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Precision Micropower, Low Dropout Voltage References

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REF198GRU-REEL7 数据手册

Precision Micropower, Low Dropout

Voltage References

REF19x Series

TEST PINS

FEATURES

Test Pin 1 and Test Pin 5 are reserved for in-package Zener zap.

To achieve the highest level of accuracy at the output, the Zener

zapping technique is used to trim the output voltage. Since each

unit may require a different amount of adjustment, the resistance

value at the test pins varies widely from pin to pin and from

part to part. The user should leave Pin 1 and Pin 5

unconnected.

Initial accuracy: 2 mV maximum

Temperature coefficient: 5 ppm/°C maximum

Low supply current: 45 μA maximum

Sleep mode: 15 μA maximum

Low dropout voltage

Load regulation: 4 ppm/mA

Line regulation: 4 ppm/V

High output current: 30 mA

Short-circuit protection

REF19x

SERIES

TOP VIEW

(Not to Scale)

APPLICATIONS

Portable instruments

ADCs and DACs

Smart sensors

Solar-powered applications

Loop current-powered instruments

SLEEP

GND

OUTPUT

NOTES

1. NC = NO CONNECT.

2. TP PINS ARE FACTORY TEST

POINTS, NO USER CONNECTION.

Figure 1. 8-Lead SOIC_N and TSSOP Pin Configuration

(S Suffix and RU Suffix)

GENERAL DESCRIPTION

The REF19x series precision band gap voltage references use a

patented temperature drift curvature correction circuit and

laser trimming of highly stable, thin-film resistors to achieve a

very low temperature coefficient and high initial accuracy.

REF19x

SERIES

TOP VIEW

(Not to Scale)

SLEEP

GND

OUTPUT

NOTES

1. NC = NO CONNECT.

2. TP PINS ARE FACTORY TEST

POINTS, NO USER CONNECTION.

The REF19x series is made up of micropower, low dropout

voltage (LDV) devices, providing stable output voltage from

supplies as low as 100 mV above the output voltage and

consuming less than 45 μA of supply current. In sleep mode,

which is enabled by applying a low TTL or CMOS level to the

Figure 2. 8-Lead PDIP Pin Configuration

(P Suffix)

SLEEP

Table 1. Nominal Output Voltage

pin, the output is turned off, and supply current is

Part Number

Nominal Output Voltage (V)

further reduced to less than 15 μA.

REF191

REF192

REF193

REF194

REF195

REF196

REF198

2.048

2.50

3.00

4.50

5.00

3.30

4.096

The REF19x series references are specified over the extended

industrial temperature range (−40°C to +85°C), with typical

performance specifications over −40°C to +125°C for

applications such as automotive.

All electrical grades are available in an 8-lead SOIC_N package;

the PDIP and TSSOP packages are available only in the lowest

electrical grade. Products are also available in die form.

Rev. I

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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