MC144112

MOTOROLA SEMICONDUCTOR TECHNICAL DATA Order this document by MC144112/D Advance Information Quad Six-Bit Digital-to-Analog Converter CMOS The MC144112 contains four independent DACs which are controlled through a common serial data port. When all DACs are utilized, there are 24 bits in the serial data stream. However, if not all DACs are utilized, the bit stream length may be reduced by up to six bits per unused DAC. For new designs, the MC144112 is preferred over the MC144110 and MC144111. The newer MC144112 offers a wider operating temperature range, lower operating supply voltage, and lower supply current. Operating Supply Voltage Range: 2.7 to 5.5 V * Maximum Supply Current (per Package) — All DAC Outputs = Zero: 1.25 mA @ 2.7 V 2.1 mA @ 4.5 V All DAC Outputs = Full Scale: 30 µA @ 5.5 V Integral Nonlinearity: – 1 1/4 to 1/4 LSB Operating Temperature Range: – 40 to 85°C Direct R–2R Network Outputs Direct Interface to Motorola SPI Serial Data Port Digital Data Output Permits Cascading BLOCK DIAGRAM MC144112 14 1 D SUFFIX SOG PACKAGE CASE 751A ORDERING INFORMATION MC144112D SOG Package Plastic DIP availability dependent on market demand. PIN ASSIGNMENT Din NC R1 Out NC R2 Out ENB VSS 1 2 3 4 5 6 7 14 13 12 11 10 9 8 VDD Dout R4 Out NC R3 Out NC CLK NC = NO CONNECTION R1 OUT 3 R2 OUT 5 R3 OUT 10 R4 OUT 12 R–2R LADDER NETWORKS 6 6 6 6 R4 OUT INVERTING BUFFERS VDD 6 6 LOAD 6 LATCHES 2R 6 6 2R ENB R 2R R 2R R 2R R 2R R 2R CLK 8 D ** C Q CLOCK 6 ...