SPX385-2.5

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 ■ 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 ■ Battery Operating Equipment ■ Adjustable Supplies ■ Switching Power Supplies ■ Error Amplifiers ■ Single Supply Amplifier ■ Monitors / VCR / TV ■ Personal Computers N/C SPX385 3 Pin SOT-23 Cathode Anode Refer to page 4 for pinouts. 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 1.25V Figure 1: Block Diagram Date:05/21/04 Anode (A) SPX385-2.5 Micropower Voltage Reference © Copyright 2004 Sipex Corporation 1 ABSOLUTE MAXIMUM RATINGS Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This...