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Power Supply Monitor
DESCRIPTION
The SPX1004 is a 2-terminal bandgap precision voltage reference that provides a stable
fixed output voltage of 1.2V and 2.5V with a tolerance of
鹵4mV
for SPX1004-1.2 and
鹵20mV
for SPX1004-2.5. Design, process and precision on chip trimming yield a very low tempera-
ture coefficient of 25 ppm/擄C.
The SPX1004 can be used as a pin-to-pin replacement for the LT1004, LM1004 or AS1004.
The SPX1004 is available in SOT-89, SOIC-8 and TO-92 packages over the operating
temperature range of 0擄C to 70擄C.
BLOCK DIAGRAMS
Cathode (K)
Cathode (K)
500k
+
-
1.235V
500k
+
-
1.250V
Anode (A)
Anode (A)
Figure 1a. SPX1004-1.2 Block Diagram
Date: 5/25/04
Figure 1b. SPX1004-2.5 Block Diagram
漏 Copyright 2004 Sipex Corporation
SPX1004 1.2V/2.5V Micropower Voltage Reference
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