FEATURES

High performance alternative to REF1004,

LT1004 and LM185/385 references

4A typical knee current

Small outline SOT23 package

SO8 and E-Line alternatives available

20ppm/°C typical temperature coefficient

Unconditionally stable

0.5%, 1%, 2% and 3% tolerance

Contact Zetex marketing for availability of tighter

tolerance devices

APPLICATIONS

Battery powered equipment

Precision power supplies

Portable instrumentation

Portable communications devices

Notebook and palmtop computers

Data acquisition systems

A/D and D/A converters

Test equipment

DESCRIPTION

The ZXRE1004 is a 1.22 volt bandgap reference circuit

designed for ultra low current operation, typically 4

A.

The device is available in a SOT23 surface mount

package offering the ultimate in space and power

saving. These features make the ZXRE1004 particularly

suitable for portable and battery powered applications.

SOT23 tolerance selection is available to 0.5% for

precision applications. Excellent performance is

maintained over the 8

A to 20mA operating current

range with a typical temperature coefficient of only

20ppm/°C. The device has been designed to be highly

tolerant of capacitive loads so maintaining excellent

stability.

As well as the SOT23, the ZXRE1004 can offer a pin for

pin compatible alternative to the REF1004, LT1004 and

LM185/385 series of voltage references with SO8 and

E-Line (TO92 style) equivalents .

SOT23 MICROPOWER (4

A) 1.22V VOLTAGE REFERENCE

1

1.5V

27k

1.22V

SCHEMATIC DIAGRAM

APPLICATIONS CIRCUIT

Ultra low quiescent reference from a 1.5V battery

source.

ZXRE1004

ISSUE 2 - JUNE 1999