AD760

a FEATURES ±0.2 LSB (±0.00031%) Typ Peak DNL and INL ±0.5 LSB (±0.00076%) Typ Unipolar Offset, Bipolar Zero 17-Bit Monotonicity Guaranteed 18-Bit Resolution (in Serial Mode) Complete 16/18-Bit D/A Function On-Chip Output Amplifier On-Chip Buried Zener Voltage Reference Microprocessor Compatible Serial or Byte Input Double Buffered Latches Asynchronous Clear Function Serial Output Pin Facilitates Daisy Chaining Pin Strappable Unipolar or Bipolar Output Low THD+N: 0.005% MUX Output Control on Power-Up and Supply Glitches PRODUCT DESCRIPTION UNI/ BIP CLR 17 OR LBE HBE 18 SER 19 CLR 20 LDAC 21 REF IN 25 16/18-Bit Self-Calibrating Serial/Byte DACPORT AD760 FUNCTIONAL BLOCK DIAGRAM MSB/ 18/16 SIN LSB SERIAL OR OR OR DB0 DB1 DB2 14 13 12 CS 16 DB7 7 AD760 CONTROL LOGIC 16/18-BIT INPUT REGISTER 10k 16/18-BIT DAC LATCH 10k MAIN DAC 9.95k RAM 24 15 SOUT SPAN/ BIP OFF 23 27 28 VOUT MUXOUT MUX I N AGND REF OUT 26 +10V REF CALIBRATION DAC 22 CALIBRATION SEQUENCER 1 2 3 4 5 6 The AD760 is a complete 16/18-bit self-calibrating monolithic DAC (DACPORT®) with onboard voltage reference, double buffered latches and output amplifier. It is manufactured on Analog Devices’ BiMOS II process. This process allows the fabrication of low power CMOS logic functions on the same chip as high precision bipolar linear circuitry. Self-calibration is initiated by simply pulsing the CAL pin low. The CALOK pin indicates when calibration has been successfully completed. The output multiplexer (MUXOU...