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Battery Powered Equipment
Instrumentation
Automotive Electronics
Data Acquisition Systems
DESCRIPTION
The SPX4041 is a 2-terminal, temperature compensated, band-gap voltage reference which
provides a fixed 1.24V output for input currents between 160碌A and 15mA. The bandgap voltage
(1.24V) is independently laser trimmed from the output voltage to achieve a very low temperature
coefficient, then the output voltage is trimmed to 1.24V. This trimming technique and the low
temperature coefficient (A grade: 50 ppm/擄C) thin film resistor process gives a very stable device
over the full temperature range. The SPX4041 is available in the sub miniature 3 pin SOT-23,
3 pin TO-92 or 8 pin NSOIC packages. The operating temperature is -40擄C to 85擄C. The
SPX4041 advanced design eliminates the need for an external stabilized capacitor while insuring
stability with any capacitive load, making it easy to use.
TYPICAL APPLICATIONS CIRCUIT
Cathode (K)
+
-
1.24V
Anode (A)
Figure 1: Block Diagram
Date: 11/29/04
SPX4041 Precision 1.24V Shunt Voltage Reference
漏 Copyright 2004 Sipex Corporation
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