DAC7731EC

Product Summary

The DAC7731EC is a 16-bit Digital-to-Analog Converter (DAC) which provides 16 bits of monotonic performance over the specified operating temperature range and offers a +10V internal reference. Designed for automatic test equipment and industrial process control applications, the DAC7731EC output swing can be configured in a ±10V, ±5V, or +10V range. The flexibility of the output configuration allows the DAC7731EC to provide both unipolar and bipolar operation by pin strapping. The device includes a high-speed output amplifier with a maximum settling time of 5μs to ±0.003% FSR for a 20V full-scale change and only consumes 100mW (typical) of power. The DAC7731EC features a standard 3-wire, SPI-compatible serial interface with double buffering to allow asynchronous updates of the analog output as well as a serial data output line for daisy-chaining multiple DAC7731s. A user programmable reset control forces the DAC output to either min-scale (0000h) or mid-scale (8000h), overriding both the input and DAC register values. The DAC7731EC is available in a SSOP-24 package.

Parametrics

DAC7731EC absolute maximum ratings: (1)VCC to VSS: –0.3V to +32V; (2)VCC to AGND: –0.3V to +16V; (3)VSS to AGND: –16V to +0.3V; (4)AGND to DGND: –0.3V to 0.3V; (5)REFIN to AGND: 0V to VCC – 1.4V; (6)VDD to DGND: –0.3V to +6V; (7)Digital Input Voltage to DGND: –0.3V to VDD + 0.3V; (8)Digital Output Voltage to DGND: –0.3V to VDD + 0.3V; (9)Operating Temperature Range: –40℃ to +85℃; (10)Storage Temperature Range: –65℃ to +150℃; (11)Junction Temperature (TJ Max): +150℃.

Features

DAC7731EC features: (1)low power: 150mw maximum; (2)+10v internal reference; (3)unipolar or bipolar operation; (4)settling time: 5μs to ±0.003% FSR; (5)16-bit monotinicity, –40℃ to +85℃; (6)±10V, ±5V, OR +10V configurable voltage output; (7)reset to zero or mid-scale; (8)double-buffered data input; (9)daisy-chain feature for multiple dac7731s on a single bus; (10)small ssop-24 package.

Diagrams