GENERAL DESCRIPTION

The AD5532B is a 32-channel, voltage output, 14-bit DAC with an additional precision infinite sample-and-hold mode. The selected DAC register is written to via the 3-wire serial interface and VOUT for this DAC is then updated to reflect the new contents of the DAC register. DAC selection is accomplished via address bits A0–A4. The output voltage range is determined by the offset voltage at the OFFS_IN pin and the gain of the output amplifier. It is restricted to a range from VSS + 2 V to VDD – 2 V because of the headroom of the output amplifier.

FEATURES

High Integration:

32-Channel DAC in 12 mm x 12 mm CSPBGA

Guaranteed Monotonic to 14 Bits

Infinite Sample-and-Hold Capability to ±0.018 Accuracy

Infinite Sample-and-Hold Total Unadjusted Error ±2.5 mV

Adjustable Voltage Output Range

Readback Capability

DSP/Microcontroller Compatible Serial Interface

Output Impedance 0.5 Ω

Output Voltage Span 10 V

Temperature Range –40°C to +85°C

APPLICATIONS

Automatic Test Equipment

Optical Networks

Level Setting

Instrumentation

Industrial Control Systems

Data Acquisition

Low Cost I/O