描述 Description

The LM4040 is a family of bandgap circuits designed to achieve precision micro-power voltage references of 2.5V, 3.0V and 5.0V. The devices are available in 0.2% B-grade, 0.5% Cgrade and 1% D-grade initial tolerances. They are available in small outline SOT23 and SC70-5 surface mount package which are ideal for applications where space saving is important. Excellent performance is maintained over the 60μA to 15mA operating current range with a typical temperature coefficient of only 20ppm/°C. The device has been designed to be highly tolerant of capacitive loads so maintaining excellent stability. This device offers a pin for pin compatible alternative to the LM4040 voltage reference. The LM4040 is also available with AEC-Q100 approval; see LM4040Q datasheet.

特性 Features

Small packages: SOT23 and SC70-5
No Output capacitor required
Output voltage tolerance
LM4040B ......................................... ±0.2% at 25°C
LM4040C ........................................ ±0.5% at 25°C
LM4040D ........................................... ±1% at 25°C
Low output noise
(10 Hz to 10kHz) ............................................ 45μVRMS
Wide operating current range ................ 60μA to 15mA
Extended temperature range ............. -40°C to +125°C
Low temperature coefficient………..100 ppm/°C(max)

應(yīng)用 Application

Battery powered equipment
Precision power supplies
Portable instrumentation
Portable communications devices
Notebook and palmtop computers
Data acquisition systems