Texas Instruments' DAC7558 is an octal-channel, voltage-output DAC with superior linearity and monotonicity. Its proprietary architecture minimises undesired transients such as code-to-code glitch and channel-to-channel crosstalk. The chip's output amplifiers can drive a 2 kΩ, 200 pF load rail-to-rail with 5 μs 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. 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. The chip operates from a single 2,7 V to 5,5 V supply with typical power consumption of 7,5 mW at 5 V, 3,7 mW at 3 V, and reduces to 1 μW in power-down mode. It comes in a 32-lead QFN package.
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