The AD1851RZ-J is a 16-bit monolithic PCM audio Digital-to-analog Converter (DAC) provides a voltage output amplifier, serial-to-parallel register and voltage reference. The digital portion of the AD1851 is fabricated with CMOS logic elements that are provided by Analog Devices 2μm ABCMOS process. The analog portion of the AD1851 is fabricated with bipolar and MOS devices as well as thin-film resistors. Laser-trimming of the linearity error affords low total harmonic distortion. An optional linearity trim pin is provided to allow residual differential linearity error at midscale to be eliminated. This feature is particularly valuable for low distortion reproductions of low amplitude signals. Output glitch is also small, contributing to the overall high level of performance. The output amplifier achieves fast settling and high slew rates, providing a full ±3V signal at load currents up to 8mA. When used in current output mode, the AD1851 provides a ±1mA output signal.
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