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R2A20168NP Datasheet, PDF (1/10 Pages) Renesas Technology Corp – 8-bit 8ch D/A Converter with Buffer Amplifiers | |||
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New Product
R2A20168NP/SA/SP
8-bit 8ch D/A Converter with Buffer Amplifiers
R03DS0019EJ0100
Rev.1.00
2011.09.05
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
ï· Guarantee Nonlinearity error : +/-1.0LSB, Differential nonlinearity error : +/-0.7LSB
ï· Data transfer format: 12-bit serial data input type by 3 wire ( DI, SCK, LD )
ï· Output buffer op-amps: Operable over entire voltage range from almost ground to Vcc ( 0 to 5V )
ï· Very small size package line-up: QFN-16(pin pitch: 0.5mm), TSSOP-16(pin pitch 0.65mm)
Application
ï· Conversion from digital data to analog control data for home-use and industrial equipment.
ï· Signal gain control or automatic adjustment of LCD-TV, PDP-TV or LCD display-monitor.
ï· Blurring correction control or various control of the interchangeable lens of digital still camera.
ï· 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
8âbit latch
8-bit upper
segment R-2R
8
8-bit latch
8-bit upper
segment R-2R
6
8
VrefU
13 16 1
2
3
4
5
8
15 2
3
4
5
6
7 10
Ao1 Ao2 Ao3 Ao4 Ao5 Ao6 Ao7 Ao8
R03DS0019EJ0100 Rev.1.00
2011.09.05
15
1
VrefL
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