AS1004

Micropower Voltage Reference

Description

The AS1004 is a two-terminal precision band-gap voltage

reference with a low turn-on current of 10

µA.

Emulating a 1.235 V zener diode, the AS1004 operates more

than three orders of magnitude of output current with minute

output impedance and guaranteed stability. With an initial

tolerance of

± 4 mV and guaranteed temperature perfor-

mance, it is ideal for precision instrumentation, especially in

low power applications. Being a low-voltage reference, the

AS1004 is also well-suited as a reference for low-voltage

power supply applications, especially in power supplies

intended for low-voltage logic systems, laptop computers

and other portable or battery operated equipment.

The AS1004 is pin-for-pin compatible with the LT1004 and

the LM385 and offers improved specifications over both the

LM385 and the MP5010. It is also available as a 2.5 V

reference with a guaranteed start-up current of 20

µA.

Features

AS1004-1.2

AS1004-2.5

for AS1004-1.2

for AS1004-2.5

Over three orders of magnitude

of operating current!

guaranteed

Ordering Information

Description

Temperature Range

Order Codes

TO-92

0 to 70

° C

AS1004-1.2LP

AS1004-2.5LP

8-Pin Plastic SOIC

0 to 70

° C

AS1004-1.2D

AS1004-2.5D

SOT-89

0 to 70

° C

AS1004-1.2S

AS1004-2.5S

© ASTEC Semiconductor

ANODE

CATHODE

N/C

8

1

N/C

CATHODE

7

2

N/C

N/C

6

3

N/C

CATHODE

5

4

ANODE

ANODE

N/C

ANODE

CATHODE

TO-92 (LP)

SOIC (D)

SOT-89 (S)

29