DAC7731

Features:

* LOW POWER: 150mW MAXIMUM
* +10V INTERNAL REFERENCE
* UNIPOLAR OR BIPOLAR OPERATION
* SETTLING TIME: 5µs to ±0.003% FSR
*16-BIT MONOTINICITY, 40°C TO +85°C
* ±10V, ±5V, OR +10V CONFIGURABLE VOLTAGE
   OUTPUT
* RESET TO ZERO OR MID-SCALE
* DOUBLE-BUFFERED DATA INPUT
* DAISY-CHAIN FEATURE FOR MULTIPLE
    DAC7731s ON A SINGLE BUS
* SMALL SSOP-24 PACKAGE


Application

* PROCESS CONTROL
* ATE PIN ELECTRONICS
* CLOSED-LOOP SERVO CONTROL
*MOTOR CONTROL
* DATA ACQUISITION SYSTEMS


Pinout

Specifications

VCC to VSS ...................................................................... 0.3V to +32V
VCC to AGND .................................................................. 0.3V to +16V
VSS to AGND .................................................................. 16V to +0.3V
AGND to DGND................................................................. 0.3V to 0.3V
REFIN to AGND .......................................................... 0V to VCC 1.4V
VDD to DGND ................................................................... 0.3V to +6V
Digital Input Voltage to DGND ............................. 0.3V to VDD + 0.3V
Digital Output Voltage to DGND .......................... 0.3V to VDD + 0.3V
Operating Temperature Range ............................... 40°C to +85°C
Storage Temperature Range ..................................65°C to +150°C
Junction Temperature (TJ Max) ................................................ +150°C


Description

The DAC7731 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 DAC7731's output swing can be configured in a  ±10V,  ±5V, or +10V range. The flexibility of the output configuration allows the DAC7731 to provide both unipolar and bipolar operation by pin strapping. The DAC7731 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 DAC7731 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 DAC7731's. 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 DAC7731 is available in a SSOP-24 package and three performance grades specified to operate from 40°C to +85°C.