DAC7553

V_DD to GND ...................................................0.3 V to 6 V
Digital input voltage to GND .............0.3 V to V_DD + 0.3 V
V_OUT to GND .....................................0.3 V to V_DD+ 0.3 V
Operating temperature range ..................40°C to 105°C
Storage temperature range .....................65°C to 150°C
Junction temperature (T_J Max) .................................150°C

The DAC7553 is a 12-bit, dual-channel, volt`age-output DAC with exceptional linearity and monotonicity. Its proprietary architecture minimizes undesired transients such as code-to-code glitch and channel-to-channel crosstalk. The low-power DAC7553 operates from a single 2.7-V to 5.5-V supply. The DAC7553 output amplifiers can drive a 2-kW, 200-pF load rail-to-rail with 5-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 outputs of all DACs may be updated simultaneously or sequentially. The parts incorporate a power-on-reset circuit to ensure that the DAC outputs power up at midscale and remain there until a valid write cycle to the device takes place. The parts contain a power-down feature that reduces the current con-sumption of the device to under 2 A.

The small size and low-power operation makes the DAC7553 ideally suited for battery-operated portable applications. The power consumption is typically 1.5 mW at 5 V, 0.75 mW at 3 V, and reduces to 1 W in power-down mode.

The DAC7553 is available in a 16-lead QFN package and is specified over 40°C to 105°C.