SPX385-2.5 Datasheet, PDF (1/9 Pages) Sipex Corporation – Micropower Voltage Reference

SPX385-2.5
Micropower Voltage Reference
FEATURES
■ Trimmed Bandgap ............................ 1% and 2%
■ Wide Operating Current ............... 20µA to 20mA
■ Extended Temperature Range ... -40°C to +85°C
N/C
■ Dynamic Impedance .............................. 1Ω max
■ Offered in SOT-23, TO-92, SOIC, and SOT-89
■ Improved Replacement for LM185/285/385-2.5V,
AS385-2.5
■ Low Cost Solution
APPLICATIONS
SPX385
3 Pin SOT-23
■ Battery Operating Equipment
■ Adjustable Supplies
■ Switching Power Supplies
Cathode
Anode
■ Error Amplifiers
■ Single Supply Amplifier
Refer to page 4 for pinouts.
■ Monitors / VCR / TV
■ Personal Computers
DESCRIPTION
The SPX385-2.5 is a micropower 2-terminal band-gap voltage reference with a very wide
operating current range from 20µA 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 SPX385-2.5 is available in a SOT-23, TO-92, SOIC-8 and SOT-89 package with an operating
temperature range of -40°C to 85°C. A 1.2 and 5 volt device is also available - SPX385-1.2 and
SPX385-5.
BLOCK DIAGRAM
Cathode (K)
500k
500k
Figure 1: Block Diagram
Date:05/21/04
+
-
1.25V
Anode (A)
SPX385-2.5 Micropower Voltage Reference
1
© Copyright 2004 Sipex Corporation