SPX385AS-L Datasheet, PDF (1/8 Pages) Sipex Corporation – Micropower Voltage Reference

®
SPX385-1.2
Micropower Voltage Reference
FEATURES
■ Low Output Voltage ................................ 1.235V
■ Dynamic Impedance...............................1Ω max
■ Low Temperature Coefficient........30ppm/°C (typ)
■ Operating Current ........................ 10µA to 20mA
■ Extended Temperature Range .. -40°C to +85°C
■ Initial Tolerance..................................1% and 2%
■ Pin Compatible with LM185/285/385, 1.23V
N/C 1
N/C 2
N/C 3
ANODE 4
SPX385-1.2
8 Pin nSOIC
8 CATHODE
7 N/C
6 N/C
5 N/C
APPLICATIONS
■ Portable Meter Reference
■ Portable Test Instruments
■ Battery Operated Systems
■ Panel Meters
Now Available in Lead Free Packaging
DESCRIPTION
The SPX385-1.2 is a micropower 2-terminal band-gap voltage reference with a very wide
operating current range from 10µA 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)
Figure 1: Block Diagram
Date: 11/05/04
+
-
1.235V
Anode (A)
SPX385-1.2 Micropower Voltage Reference
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© Copyright 2004 Sipex Corporation