M62353AGP Datasheet, PDF (1/9 Pages) Mitsubishi Electric Semiconductor – 8BIT 8CH D-A CONVERTER WITH BUFFER AMPLIFIERS

M62353AGP
8-bit 8ch D/A Converter with Buffer Amplifiers
REJ03D0869-0201
Rev.2.01
Dec 27, 2007
Description
M62353A is a CMOS structured semiconductor integrated circuit integrating 8 channels of built-in D/A converters with
high performance buffer operational amplifier for each channel output.
The 3-wire serial interface (DI, CLK, LD) method is used for the transfer format of digital data to allow connection
with microcomputer with minimum wiring. DO terminal is provided to allow cascading serial use.
Built-in buffer operational amplifiers are designed to operate or full swing in the whole voltage range from V_CC to GND
for each input/output. And their higher stability for capacitive load perfectly fits in to the use for electronic volume
(VCA) or the replacement for semi-variable resistor for tuning.
Features
• 12-bit serial data input (3 wire serial data transfer method, DI, CLK, LD)
• Corresponds to TTL input for digital input (VINH ≥ 2 V, VINL ≤ 0.8 V)
• R-2R + segment method high performance 8ch 8-bit D/A converters
• 8ch buffer operational amplifiers operating in the whole voltage range from V_CC to GND
• Buffer operational amplifiers with high oscillation stability for capacitive load
Application
Adjustment or control of industrial or home-use electronic equipments such as VTR camera, VTR set, TV, and CRT
display.
Block Diagram
GND
AO1
DI
CLK
LD
DO
AO8
V_CC
16
15
14
13
12
11
10
9
Ch1
8-bit R-2R
+ segment
D/A converter
8-bit
latch
....
(8)
12-bit shift register
D0 1 2 3 4 5 6 D7 D8 9 10 D11
(8)
(8)
Address
decoder
........
8
D/A
L
(8)
8-bit
latch
Ch2
8-bit R-2R
+ segment
D/A converter
L
3
D/A
L
4
D/A
L
5
D/A
L
6
D/A
L
7
D/A
Buffer
OP AMP
1
V_SS
(VrefL)
2
AO2
3
AO3
4
AO4
5
AO5
6
AO6
7
AO7
8
V_DD
(VrefU)
REJ03D0869-0201 Rev.2.01 Dec 27, 2007
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