R2A20168NPSASP_15 Datasheet, PDF (1/10 Pages) Renesas Technology Corp – 8-bit 8ch D/A Converter with Buffer Amplifiers

Datasheet
R2A20168NP/SA/SP
8-bit 8ch D/A Converter with Buffer Amplifiers
R03DS0019EJ0200
Rev.2.00
Jul 03, 2013
Description
The R2A20168 is an integrated circuit semiconductor of CMOS structure with 8 channels of built in D/A
unnecessary and enabling configuration of a system with few component parts.
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 QFN package is added to lineup. It is suitable for a small mounting and reduces the mounting area.
Features
· Guarantee Nonlinearity error : +/-1.0LSB, Differential nonlinearity error : +/-0.7LSB
· Data transfer format: 12-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 )
· Very small size package line-up: QFN-16(pin pitch: 0.5mm), TSSOP-16(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 still camera.
· Automatic adjustment by combination with microcomputer and EEPROM.
(substitution of half fixed resistance)
Block Diagram
Number for SOP/TSSOP package
Number for QFN package
DI 14 12
CLK ^{13 11}
Vcc 9 7
Power on
reset
12-bit shift register
D0 D1 D2 D3 D4 D5 D6 D7
D8 D9 D10 D11
Channel decoder
8
12345678
8
9 11 DO
10 12 ^LD
GND 16 14
1
8–bit latch
8-bit upper
segment R-2R
8
8-bit latch
8-bit upper
segment R-2R
6
13 16 1
2
3
4
5
8
8
15 2
3
4
5
6
7 10
VrefU
Ao1 Ao2 Ao3 Ao4 Ao5 Ao6 Ao7 Ao8
R03DS0019EJ0200 Rev.2.00
Jul 03, 2013
15
1
VrefL
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