M62392P/FP
8-bit 12ch I2C BUS D/A Converter with Buffer Amplifiers
REJ03D0883-0300
Rev.3.00
Mar 25, 2008
Description
The M62392P/FP is a CMOS 12 channels D/A converter with output buffer amplifiers. It can communicate with a
microcontroller via few wiring thanks to the adoption of the two-line I2C BUS.
The output buffer amplifier employs AB class output with sinking and sourcing capability of more than 1.0 mA, and an
output voltage range is nearly between ground and VrefU.
Maximum 8 ICs can be connected to a bus by using three chip-select pins, so that it is possible to handle up to 96
channels.
Features
• I2C BUS serial data method
• Wide output voltage range
Nearly between ground and VrefU (0 to 5 V)
• High output current drive capability over ±1.0 mA
• 2 setting voltage ranges by dual input pins for upper voltage references (VrefU1, U2)
Application
Conversion from digital data to analog control data for both consumer and industrial equipment.
Gain control and automatic adjustment of display-monitor or CTV.
Block Diagram
CS0 CS1 CS2 VDD VCC AO6
AO5
AO4
AO3
AO2
AO1 VrefU2 GND
24 23 22 21 20
19
18
17
16
15
14
13 12
Chip select
+−
+−
+−
+−
+−
+−
8-bit upper
segment R-2R
8-bit
latch
8
8-bit upper
segment R-2R
8-bit
latch
8-bit upper
segment R-2R
8-bit
latch
8-bit upper
segment R-2R
8-bit
latch
8-bit upper
segment R-2R
8-bit
latch
8-bit upper
segment R-2R
8-bit
latch
8-bit
latch
8-bit upper
segment R-2R
8-bit
latch
8-bit upper
segment R-2R
8-bit
latch
8-bit upper
segment R-2R
8-bit
latch
8-bit upper
segment R-2R
8-bit
latch
8-bit upper
segment R-2R
8-bit
latch
8-bit upper
segment R-2R
+−
+−
+−
+−
+−
+−
1
2
3
4
5
6
7
8
9
10 11
R SCL SDA
AO7
AO8
AO9
AO10
AO11
AO12 VrefL VrefU1
REJ03D0883-0300 Rev.3.00 Mar 25, 2008
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