GENERAL DESCRIPTION

The SPT5420 contains eight 13-bit digital-to-analog CMOS converters designed primarily for automatic test equipment applications. It uses novel circuit topology to convert the 13-bit digital inputs into output voltages which are proportionate to the applied reference voltages. Each DAC’s full-scale output voltage and output voltage offset are adjustable with analog inputs (RGND, VREFB, VREFT).

The SPT5420 operates over an industrial temperature range of –40 °C to +85 °C and is available in a 10 x 10 mm, 44-lead metric quad flat pack (MQFP) plastic package.

FEATURES

• 13-bit resolution

• Pin compatible with AD7839

• Eight DACs in one package

• Buffered voltage outputs

• Wide output voltage swing V DD–2.5 V to VSS+2.5 V

• 15 µs settling time to ±0.5 LSB

• Double-buffered digital inputs

• Microprocessor and TTL/CMOS compatible

APPLICATIONS

• Automatic test equipment

• Instrumentation

• Process control