Dual, Serial Input, Voltage-Output, Multiplying, 12-Bit DAC

The MAX532 is a complete, dual, serial-input, 12-bit multiplying digital-to-analog converter (MDAC) with output amplifiers. No external user trims are required to achieve full specified performance. The MAX532's 3-wire serial interface minimizes the number of package pins, so it uses less board space than parallel-interface parts. The interface is SPI™, QSPI™ and Microwire™ compatible. A serial output, DOUT, allows cascading of two or more MAX532s and read-back of the data written to the device.

The device's serial interface minimizes digital-noise feed-through from its logic pins to its analog outputs. Serial interfacing also simplifies opto-coupler-isolated or transformer-isolated applications.

The MAX532 is specified with ±12V to ±15V power supplies. All logic inputs are TTL and CMOS compatible. It comes in space-saving 16-pin DIP and wide SO packages.

Applications

* Arbitrary Waveform Generation (AWG) * Automatic Test Equipment * Motion Control Systems * Programmable-Gain Amplifiers * Servo Controls

* Two 12-Bit MDACs with Output Amplifiers

* Fast, 6MHz 3-Wire Interface

* SPI, QSPI, and Microwire Compatible

* ±12V Output Swing

* ±10mA Output Current

* 2.5µs Settling Time to ±1/2LSB

* Guaranteed Monotonic Over Temperature

* Low Integral Nonlinearity: ±1/2LSB Max

* Low Gain Tempco: 2ppm/°C

* Operates from ±12V to ±15V Supplies

* Power-On Reset

* Available in 16-Pin DIP and Wide SO Packages