Analog Devices Inc. AD75004KP

Description
The AD75004 is a monolithic BIMOS device that integrates four complete 12-bit digital-to-analog converters (DACs), a high stability bandgap reference, and double-buffered input latches. The DACs utilize precision high-speed bipolar current steering switches and laser-trimmed thin-film resistor networks for fast settling time and high accuracy.
The on-chip double-buffered latches provide microprocessor compatibility and allow direct interface to 8-bit buses. The 12 bits of data from the first rank of latches can be transferred to the second rank, avoiding the generation of spurious analog output values. The latches respond to strobe pulses as short as 50 ns, enabling use with fast microprocessors.
The bandgap reference on the chip exhibits low noise, long-term stability, and temperature drift characteristics comparable to discrete reference diodes. Its absolute value is laser-trimmed to 5.00 V with 0.6% maximum error, and its temperature coefficient is also laser-trimmed.

Features
Four complete 12-bit DAC functions
Double-buffered latches
Simultaneous update of all DACs possible
±5 V output range
High stability bandgap reference
Monolithic BIMOS construction
Guaranteed monotonic over temperature
3/4 LSB linearity guaranteed over temperature
4 μs max settling time to 0.01%
Operates with ±12 V supplies
Low power: 720 mW max including reference
TTL/5 V CMOS compatible logic inputs
8-bit microprocessor interface
24-pin PDIP or 28-lead PLCC package

Applications
Process control
Data acquisition systems
Industrial automation
Instrumentation
Audio signal processing
Medical imaging
ATE systems