DAC7612UB

The DAC7612UB from Texas Instruments is a dual, 12-bit digital-to-analog converter (DAC) designed for reliable performance over an industrial temperature range of -40°C to +85°C. It operates from a single +5V supply and integrates essential components including an input shift register, latch, a 2.435V reference, and dual DACs with high-speed rail-to-rail output amplifiers.

This device offers guaranteed 12-bit monotonicity and linearity. Its synchronous serial interface is compatible with various DSPs and microcontrollers, utilizing Clock (CLK), Serial Data In (SDI), Chip Select (CS), and Load DACs (LOADDACS) signals. The DAC7612UB achieves a fast settling time of 7µs to 1 LSB for a full-scale step, while consuming minimal power at only 3.7mW typical.

The DAC7612UB is housed in a compact 8-lead SOIC package, making it suitable for space-constrained applications. Its output type is voltage, buffered, with an output voltage range of 0V to 5V. The architecture is R-2R, and it features an internal reference.

Key specifications include a resolution of 12 bits, two DAC channels, and an SPI interface. The typical power consumption is 3.5mW, and the maximum interface clock frequency is 20MHz. This DAC is well-suited for applications such as process control, data acquisition systems, closed-loop servo-control, PC peripherals, and portable instrumentation.