REF1004I-1.2/2K5屬于集成電路（IC）的電壓基準。由美國德州儀器公司制造生產(chǎn)的REF1004I-1.2/2K5電壓基準產(chǎn)品屬于基準電壓源系列，可通過相對較不穩(wěn)定的電源提供穩(wěn)定的電勢，電壓值始終保持恒定，以便在測量、控制和類似應用中用作比較的標準。其功能行為可能與用于大功率調(diào)節(jié)的線性穩(wěn)壓器相似，但基準電壓源器件卻不適合用于此類用途。用作比較標準時，若輸出電流容量或?qū)嶋H負載電流增大，其性能通常會降低。

FEATURES

INITIAL ACCURACY:

REF1004-1.2 ±4mV

REF1004-2.5 ±20mV

MINIMUM OPERATING CURRENT:

REF1004-1.2 10mA

REF1004-2.5 20mA

EXCELLENT LONG TERM

TEMPERATURE STABILITY

VERY LOW DYNAMIC IMPEDANCE

OPERATES UP TO 20mA

PACKAGE: 8-Lead SOIC

APPLICATIONS

BATTERY POWERED TEST EQUIPMENT

PORTABLE MEDICAL INSTRUMENTATION

PORTABLE COMMUNICATIONS DEVICES

A/D AND D/A CONVERTERS

NOTEBOOK AND PALMTOP COMPUTERS

DESCRIPTION

The REF1004-1.2 and REF1004-2.5 are two terminal

bandgap reference diodes designed for high accuracy

with outstanding temperature characteristics at low

operating currents. Prior to the introduction of the

REF1004 Micropower Voltage References, accuracy

and stability specifications could only be attained by

expensive screening of standard devices. The REF1004

is a cost effective solution when reference voltage

accuracy, low power, and long term temperature stability

are required.

REF1004 is a drop-in replacement for the LT1004 as

well as an upgraded replacement of the LM185/385

series references. The REF1004C is characterized for

operation from 0°C to 70°C and the REF1004I is

characterized for operation from –40°C to +85°C.

The REF1004 is offered in an 8-lead Plastic SOIC

package and shipped in anti-static rails or tape and

reel.