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Date: 1/19/05

SPX4040 Micropower 2.5V Shunt Voltage Reference

© Copyright 2005 Sipex Corporation

Precision Micropower 2.5V ShuntVoltage Reference

The SPX4040 is a 2-terminal, temperature compensated, bandgap voltage reference that

provides a fixed 2.5V output for input currents between 160µA and 15mA. The bandgap voltage

(2.5V) is independently trimmed from the output voltage to achive a very low temperature

coefficient. This trimming technique gives a stable device over the full temperature range

(100ppm/°C).

The SPX4040 is available in 3 pin TO-92, 3 SOT-23 and 8 pin NSOIC packages. The operating

temperature range is -40°C to 85°C. The SPX4040 advanced design eliminates the need for an

external stabilizing capacitor while ensuring stability with any capacitive load, making it easy to

use.

SPX4040

®

FEATURES

■ Trimmed Bandgap to 0.5% and 1%

■ Wide Operating Current 160µA to 15mA

■ Extended Temperature Range:

-40°C to 85°C

■ Low Temperature Coefficient 100 ppm/°C

■ Replacement in for LM4040

APPLICATIONS

■ Battery Operating Equipment

■ Adjustable Supplies

■ Switching Power Supplies

■ Error Amplifiers

DESCRIPTION

Anode (A)

Cathode (K)

2.5V

+

-

R

R

TYPICAL APPLICATIONS CIRCUIT

■ Single Supply Amplifier

■ Monitors / VCRs / TVs

■ Personal Computers

Now Available in Lead Free Packaging

1

2

3

4

5

6

7

8

SPX4040

8 Pin nSOIC

CATHODE

N/C

ANODE

N/C

N/C

N/C

N/C

N/C