New Product
R2A20162NS/SA/SP
8-bit 2ch D/A Converter with Buffer
R03DS0016EJ0100
Rev.1.00
2011.09.05
Description
The R2A20162 is an integrated circuit semiconductor of CMOS structure with 2 channels of built in D/A
converters with output buffer op-amps. It is the electrical characteristic improvement version of the M62342.
Serial data transfer type input can easily be used through a combination of three lines: DI, CLK, and LD.
Outputs incorporate buffer op-amps that have a drive capacity of 1 mA or above for both sink source, and
can operate over the entire voltage range from almost ground to Vcc ( 0 to 5V ), making peripheral elements
unnecessary and enabling configuration of a system with few component parts.
Very small SON package is added to lineup. It is suitable for a small mounting and reduces the mounting area.
Features
Guarantee Differential Nonlinearity error : +/- 0.7LSB, Nonlinearity error : +/- 1.0LSB,
Data transfer format: 10-bit serial data input type by 3 wire ( DI, SCK, LD )
Output buffer op-amps: Operable over entire voltage range from almost ground to Vcc ( 0 to 5V )
High output current capacity: +/- 1mA or Higher
Very mall size package line-up: SON-8 (pin pitch: 0.5mm), TSSOP-8 (pin pitch 0.65mm)
Application
Conversion from digital data to analog control data for home-use and industrial equipment.
Signal gain control or automatic adjustment of LCD-TV, PDP-TV or LCD display-monitor.
Blurring correction control or various control of the interchangeable lens of digital camera for self
adjustment by combination with microcomputer and EEPROM. (substitution of half fixed resistance)
Block Diagram
Vcc
4
LD
8
CLK
7
GND
5
DI
6
10-bit shift register
Power on
reset
Channel
decoder
8
8-bit latch
8-bit latch
8-bit upper
segment R-2R
8-bit upper
Segment R-2R
1
Ao1
R03DS0016EJ0100 Rev.1.00
2011.09.05
2
Ao2
3
N.C.
Page 1 of 7
New Product
R2A20162NS/SA/SP
Pin Arrangement
R2A20162NS (Top view)
R2A20162SA/SP (Top view)
Ao1 1
8 LD
Ao1 1
8 LD
Ao2 2
7 CLK
Ao2 2
7 CLK
N.C. 3
6 DI
N.C. 3
6 DI
5 GND
Vcc
Vcc 4
4
N.C.: Not connected
Outline: PWSN0008KA-A [NS]
5 GND
N.C.: Not connected
Outline: PRSP0008DE-C [SP]
PTSP-0008JC-B [SA]
Pin Description
Pin No.
Pin Name
6
DI
Function
Serial data input terminal.
(Input serial data with a 10-bit data length.)
Serial clock input terminal
(Input signal from DI terminal is input to 10-bit shift register at rise of serial
clock.)
7
CLK
8
LD
1
Ao1
2
A02
8-bit resolution D/A converter output terminals
(After power-on, all channels are reset and DAC data 00h is output.)
3
N.C.
Not connected
4
Vcc
Power supply terminal
5
GND
GND terminal
Load terminal
(When High level is input to LD terminal, value in 10-bit shift register is
loaded into decoder and 8-bit latch.)
R03DS0016EJ0100 Rev.1.00
2011.09.05
Page 2 of 7
New Product
R2A20162NS/SA/SP
Absolute Maximum Ratings
Item
(Ta= +25deg unless otherwise noted)
Symbol
Conditions
Ratings
Unit
Supply voltage
Vcc
-0.3 to +6.5
V
Input voltage
Vin
-0.3 to Vcc+0.3
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