DAC7551

    The DAC7551 is a single-channel, voltage-output DAC with exceptional linearity and monotonicity. Its proprietary architecture minimizes glitch energy. The low-power DAC7551 operates from a single 2.7-V to 5.5-V supply. The DAC7551 output amplifiers can drive a 2-k Ω , 200-pF load rail-to-rail with 5- µ s settling time; the output range is set using an external voltage reference.

    The 3-wire serial interface operates at clock rates up to 50 MHz and is compatible with SPI, QSPI, Microwire ™ , and DSP interface standards. The parts incorporate a power-on-reset circuit to ensure that the DAC outputs power up to zero volts and remain there until a valid write cycle to the device takes place. The parts contain a power-down feature that reduces the current consumption of the device to under 2 µ A.

    The small size and low-power operation makes the DAC7551 ideally suited for battery-operated portable applications. The power consumption is typically 0.5 mW at 5 V, 0.23 mW at 3 V, and reduces to 1 µ W.

    The DAC7551 is available in a 12-lead SON package and is specified over 40 ° C to 105 ° C.