DAC 1-CH Resistor-String 12-Bit 12-Pin USON EP T/R

The DAC7551 is a single-channel, voltage-output digital-to-analog converter (DAC) with exceptional linearity and monotonicity, and a proprietary architecture that minimizes glitch energy. The low-power DAC7551 operates from a single 2.7V to 5.5V supply. The DAC7551 output amplifiers can drive a 2kO, 200pF load rail-to-rail with 5µs settling time; the output range is set using an external voltage reference.The 3-wire serial interface operates at clock rates up to 50MHz and is compatible with SPI, QSPI, Microwire, and DSP interface standards. The parts incorporate a power-on-reset circuit to ensure that the DAC output powers up to 0V and remains there until a valid write cycle to the device takes place. The part contains a power-down feature that reduces the current consumption of the device to under 2µA. Small size and low-power operation make the DAC7551 ideally suited for battery-operated, portable applications. The power consumption is typically 0.5mW at 5V, 0.23mW at 3V, and reduces to 1µW in power-down mode. The DAC7551 is available in a 12-lead SON package and is specified over -40°C to +105°C.

Relative Accuracy (INL): ±0.35LSB

Ultra-Low Glitch Energy: 0.1nV-s

Low Power Operation: 100µA at 2.7V

Power-On Reset to Zero Scale

Power Supply: 2.7V to 5.5V Single Supply

Power-Down: 0.05µA at 2.7V

12-Bit Linearity and Monotonicity

Rail-to-Rail Voltage Output

Settling Time: 5µs (Max)

SPI-Compatible Serial Interface with Schmitt-Trigger Input: Up to 50MHz

Daisy-Chain Capability

Asynchronous Hardware Clear to Zero Scale

Specified Temperature Range: -40°C to +105°C

Small, 2 x 3 mm, 12-Lead SON Package

APPLICATIONS

• Portable, Battery-Powered Instruments
• Digital Gain and Offset Adjustment
• Programmable Voltage and Current Sources
• Programmable Attenuators
• Industrial Process Control