Eight 16-bit voltage outputs in a single 64-TQFP
The Texas Instruments DAC8728SPAG packs eight independent 16-bit digital-to-analog converters with buffered voltage outputs into a 64-TQFP package. Each channel settles to 0.5 LSB within 15 µs typical, driven by a parallel data interface. The analog supply accepts 9V to 36V single-ended or ±4.5V to ±18V split rails, while the digital supply runs from 2.7V to 5.5V — so you can feed it directly from a 3.3V or 5V logic bus without a separate regulator. An external reference sets the output span, giving you control over the full-scale voltage independent of the supply.
Package and mounting
15 µs typical settling to 0.5 LSB means each channel can update at roughly 66 kHz before the output has fully settled. That is fast enough for motor-current set-points, valve-position commands, or programmable voltage references in ATE. It is not a waveform DAC — you would not use it for audio or arbitrary-waveform generation above a few kilohertz. The parallel interface lets you write all eight channels in burst mode: latch the data on the bus, then strobe the load DAC strobe to update all outputs simultaneously.
The wide analog supply range means you can run it off a 24V industrial rail or ±15V op-amp supplies without extra conversion. The digital supply is independent, so the logic interface stays at 3.3V or 5V regardless of the analog rail.
Lifecycle and compliance
It is ROHS3 compliant. For new designs, there is no LTB risk to plan around.