R2A20178NP

New Product R2A20178NP 8-bit 8ch Multiplying D/A Converter with Buffer Amplifiers R03DS0021EJ0100 Rev.1.00 2011.09.05 Description The R2A20178 is a CMOS 8-bit 8ch D/A converter having a multiplying function and output buffer amplifiers. It has a serial data input and can easily communicate with a microcontroller by simple three-wiring method (DI, CLK, LD), and it is suitable for a use in automatic adjustment applications in conjunction with a MCU. The reference voltage terminals (VDAref1, VDAref2) are 4ch x 2 configuration, and the 4 quadrant operation is possible. Features  Guarantee Nonlinearity error : +/-1.0LSB, Differential nonlinearity error : +/-0.7LSB  Three-wiring serial data transmission  High performance 8ch D/A converter employing an R-2R with higher-order segment method  8 buffer amplifiers operating in a whole supply voltage range from VDD to GND  High anti-oscillation stability for capacitive loads  4 quadrant multiplication  Very small package : QFN (pin pitch 0.5mm) Application  Digital to analog conversion for consumer and industrial equipment.  Self adjustment by combination with microcomputer and EEPROM (substitution of half fixed resistance)  Signal gain control or automatic adjustment of LCD-TV, PDP-TV or LCD display-monitor.  Voltage control of transmission power amplifier of transceiver Block Diagram VDD 2 DI 5 CLK 4 12-bit shift register D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 Address decoder 3 LD RESET 16 VDAref1 14 8-bit Latch 8-b...