DAC8550 - 16-Bit, Ultralow Glitch Voltage Output DAC

The DAC8550 is a small, low-power, voltage output, 16-bit digital-to-analog converter(DAC). It is monotonic, provides good linearity, and minimizes undesired code-to-code transientvoltages. The DAC8550 uses a versatile, 3-wire serial interface that operates at clock rates of upto 30 MHz and is compatible with standard SPI™,QSPI™, Microwire™, and digital signal processor (DSP)interfaces.

The DAC8550 requires an external reference voltage to set its output range. The DAC8550incorporates a power-on reset circuit that ensures that the DAC output powers up at midscale andremains there until a valid write takes place to the device. The DAC8550 contains a power-downfeature, accessed over the serial interface, that reduces the current consumption of the device to200 nA at 5 V.

The low-power consumption of this device in normal operation makes it ideal for portable,battery-operated equipment. Power consumption is 0.38 mW at 2.7 V, reducing to less than 1 µWin power-down mode.

The DAC8550 is available in an MSOP-8 package.

For additional flexibilty, see the DAC8551, a binary-coded counterpart to theDAC8550.

• Relative Accuracy: 8 LSB
• Glitch Energy: 0.1 nV-s
• MicroPower Operation: 140 µA at 2.7 V
• Power-On Reset to Midscale
• Power Supply: 2.7 V to 5.5 V
• 16-Bit Monotonic
• Settling Time: 10 µs to ±0.003% FSR
• Low-Power Serial Interface with Schmitt-Triggered Inputs
• On-Chip Output Buffer Amplifier with Rail-to-Rail Output Amplifier
• Power-Down Capability
• 2’s Complement Input
• SYNC Interrupt Facility
• Drop-In Compatible with DAC8531/01 and DAC8551 (Binary Input)
• Available in a Tiny MSOP-8 Package

All trademarks are the property of their respective owners.