DAC 1-CH Resistor-String 16-bit 8-Pin VSSOP T/R

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 transient voltages. The DAC8550 uses a versatile, 3-wire serial interface that operates at clock rates of up to 30MHz and is compatible with standardSPI,QSPI,Microwire, and digital signal processor (DSP) interfaces. The DAC8550 requires an external reference voltage to set its output range. The DAC8550 incorporates a power-on reset circuit that ensures that the DAC output powers up at midscale and remains there until a valid write takes place to the device. The DAC8550 contains a power-down feature, accessed over the serial interface, that reduces the current consumption of the device to 200nA at 5V. The low-power consumption of this device in normal operation makes it idealfor portable, battery-operated equipment.Power consumption is 0.38mW at 2.7V, reducing to less than 1µW in power-down mode. The DAC8550 is available in an MSOP-8package. For additional flexibilty, see the DAC8551, a binary-codedcounterpart to the DAC8550.

Relative Accuracy: 3LSB

Glitch Energy: 0.1nV-s

MicroPower Operation: 140µA at 2.7V

Power-On Reset to Midscale

Power Supply: +2.7V to +5.5V

16-Bit Monotonic Over Temperature

Settling Time: 10µs 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\ InterruptFacility

Drop-In Compatible with DAC8531/01 and DAC8551 (Binary Input)

Available in a Tiny MSOP-8 Package

APPLICATIONS

• Process Control
• Data Acquisition Systems
• Closed-Loop Servo-Control
• PC Peripherals
• Portable Instrumentation
• Programmable Attenuation