鈥?/div>
10-Bit Digital-to-Analog Converter
2.7-5.5V Single Supply Operation
Simple SMBus/I
2
C
TM
Serial Interface
Low Power: 350碌A Operation, 0.5碌A Shutdown
8-Pin SOIC and 8-Pin MSOP Packages
General Description
The TC1321 is a serially accessible 10-bit voltage out-
put digital-to-analog converter (DAC). The DAC pro-
duces an output voltage that ranges from ground to an
externally supplied reference voltage. It operates from
a single power supply that can range from 2.7V to 5.5V,
making it ideal for a wide range of applications. Built
into the part is a Power-on Reset function that ensures
that the device starts at a known condition.
Communication with the TC1321 is accomplished via a
simple 2-wire SMBus/I
2
C compatible serial port, with
the TC1321 acting as a slave only device. The host can
enable the SHDN bit in the CONFIG register to activate
the Low Power Standby mode.
Applications
鈥?Programmable Voltage Sources
鈥?Digital Controlled Amplifiers/Attenuators
鈥?Process Monitoring and Control
Device Selection Table
Part
Number
Package
Temperature Range
-40掳C to +85掳C
-40掳C to +85掳C
Package Type
8-Pin MSOP and
8-Pin SOIC (Narrow)
V
REF
1
SDA 2
SCL 3
GND 4
8
V
DD
DAC-OUT
NC
V
OUT
7
6
5
TC1321EOA 8-Pin SOIC (Narrow)
TC1321EUA
8-Pin MSOP
TC1321
Typical Application
V
IN
(8)
V
DD
TC1321
鈥?/div>
V
REF
(1)
DAC
V
OUT
(5)
+
V
ADJUST
Serial Port
(3)
SCLK
(2)
SDAT
Microcontroller
2002 Microchip Technology Inc.
DS21387B-page 1
漏
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