SPX385AS-L-1-2【PDF 1/8 页】IC VREF SHUNT PREC 1.235V 8SOICN

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SPX385-1.2

Micropower Voltage Reference

FEATURES

■ Low Output Voltage ................................ 1.235V

■ Dynamic Impedance...............................1 ? max

N/C 1

CATHODE

■ Low Temperature Coefficient........30ppm/ ° C (typ)

N/C 2

SPX385-1.2

N/C

■ Operating Current ........................ 10 μ A to 20mA

8 Pin nSOIC

■ Extended Temperature Range .. -40 ° C to +85 ° C

■ Initial Tolerance..................................1% and 2%

N/C 3

ANODE 4

N/C

■ Pin Compatible with LM185/285/385, 1.23V

APPLICATIONS

■ Portable Meter Reference

Now Available in Lead Free Packaging

■ Portable Test Instruments

■ Battery Operated Systems

■ Panel Meters

DESCRIPTION

The SPX385-1.2 is a micropower 2-terminal band-gap voltage reference with a very wide

operating current range from 10 μ A to 20mA that provides a stable voltage. The high stability of

this device is primarily the result of the low temperature coefficient Thin Film Resistor process and

Laser Trimming of the output voltage at the wafer level.

The SPX385-1.2 is available in a TO-92, SOIC-8 and SOT-89 package with an operating

temperature range of -40 ° C to 85 ° C. A 2.5 and 5.0 volt devices are also available - SPX385-2.5,

SPX385-5.0.

BLOCK DIAGRAM

Cathode (K)

1.235V

Anode (A)

Figure 1: Block Diagram

Date: 11/05/04

SPX385-1.2 Micropower Voltage Reference

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