M62366GP
3 V Type 8-bit 12ch D/A Converter with Buffer Amplifiers
REJ03D0876-0300
Rev.3.00
Mar 25, 2008
Description
The M62366GP is a CMOS semiconductor IC, containing 12 channels of 8-bit D/A converters, with a high-
performance buffer operational amplifier provided in the output of each channel. It is operable with a low supply
voltage between 2.7 to 3.6 V, and is easy to use due to serial data input, and 3-pin (DI, CLK, LD) connection with
microcomputer.
The IC also contains D
O
pin terminal, enabling cascade connection. The built-in buffer operational amplifiers are of
full-swing design with a wide operating supply voltage range for input/output voltage. In addition, this IC provides
improved stability against a capacitive load, and therefore is suitable for application to electronic volume (VCA) control,
substitute for adjustment semi-fixed resistor, etc.
Features
•
•
•
•
•
Operable with a low voltage between 2.7 to 3.6 V
12-bit serial data input (connected via 3 pins: DI, CLK, LD)
12 channels of R-2R and segment type high-performance 8-bit D/A converters
12 buffer operational amplifiers with full swing of output voltage between V
CC
and GND
High oscillation stability against the capacitive load of buffer operational amplifiers
Application
Adjustment/control of industrial or home-use electric equipment, such as VTR camera, VTR set, TV, and CRT display.
Block Diagram
GND
20
A
O2
19
A
O1
18
DI
17
CLK
16
LD
15
Do
14
A
O12
13
A
O11
12
V
CC
11
8-bit R-2R
+segment
D/A converter
Ch2
latch
8
-bit
−
...
+
−
D/A
1
L
+
−
+
−
+
12-bit shift register
D0 1 2 3 4 5 6 D7 D8 9 10 D11
D/A
12
D/A
11
(8)
(12)
Address
decoder
L
L
(12)
(12)
8
-bit
latch
........
L
4
5
L
6
L
7
L
8
L
9
L
10
L
D/A
−
+
Ch3
8-bit R-2R
+segment
D/A converter
D/A
−
+
D/A
−
+
D/A
−
+
D/A
−
+
D/A
−
+
D/A
−
+
−
+
Buffer
operational
amplifier
1
V
SS
(VrefL)
2
V
O3
3
V
O4
4
V
O5
5
V
O6
6
V
O7
7
V
O8
8
V
O9
9
V
O10
10
V
DD
(VrefU)
REJ03D0876-0300 Rev.3.00 Mar 25, 2008
Page 1 of 7
RENESAS [ RENESAS TECHNOLOGY CORP ]
