R2A20164NP Datasheet, PDF (1/9 Pages) Renesas Technology Corp – 8-bit 4ch D/A Converter with Buffer Amplifiers

New Product
R2A20164NP/SA
8-bit 4ch D/A Converter with Buffer Amplifiers
R03DS0017EJ0100
Rev.1.00
2011.09.05
Description
The R2A20164 is an integrated circuit semiconductor of CMOS structure with 4 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 Differential nonlinearity error : +/-0.7LSB, Nonlinearity error : +/-1.0LSB
 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 )
 4 reference voltage terminals ( 2ch  2 composition and completely independent of the power supply terminal)
 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 TSSOP package
Number for QFN package
DI 12 10
CLK ^{13 11}
12-bit shift register
D0 D1 D2 D3 D4 D5 D6 D7
D8 D9 D10 D11
Vcc ^{15 13}
Power on
reset
Channel
decoder
8
12 14 _Do
9 11 _LD
GND ^{9 7}
8bit Latch
8bit Latch
8bit Latch
8bit Latch
VrefU1 ^{4 2}
8-bit upper
segment R-2R
8-bit upper
segment R-2R
8-bit upper
segment R-2R
8-bit upper
segment R-2R
3 5 _VrefU2
VrefL1 1 15
R03DS0017EJ0100 Rev.1.00
2011.09.05
16
2
Ao1
1
3
Ao2
4
6
Ao3
5
7
Ao4
6 ⁸ VrefL2
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