SPX1004 Datasheet, PDF (1/5 Pages) Sipex Corporation – Precision Voltage Reference

®
SPX1004
1.2V / 2.5V Micropower Voltage Reference
FEATURES
■ Initial Voltage Tolerance:
SPX1004-1.2 = ±4mV
SPX1004-2.5 = ±20mV
■ Low Dynamic Impedance
0.6 Ω Max.
■ Low Operating Current:
SPX1004-1.2 = ±10µA
SPX1004-2.5 = ±20µA
■ Wide Operating Current Range
10µA to 20mA
■ Direct Replacement for LT1004,
LM1004 and AS1004
N/C 1
N/C 2
N/C 3
ANODE ₄
SPX1004
8 Pin nSOIC
8 CATHODE
7 N/C
6 CATHODE
5 ANODE
Now Available in Lead Free Packaging
APPLICATIONS
■ A/D and D/A Reference
■ Reference for 5V Systems
■ Digital Voltmeter
■ 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 ±4mV for SPX1004-1.2 and ±20mV
for SPX1004-2.5. Design, process and precision on chip trimming yield a very low tempera-
ture coefficient of 25 ppm/°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°C to 70°C.
BLOCK DIAGRAMS
Cathode (K)
Cathode (K)
+
-
1.235V
500k
500k
+
-
1.250V
Anode (A)
Figure 1a. SPX1004-1.2 Block Diagram
Anode (A)
Figure 1b. SPX1004-2.5 Block Diagram
Date: 5/25/04
SPX1004 1.2V/2.5V Micropower Voltage Reference
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© Copyright 2004 Sipex Corporation