The AD7846 is a 16-bit DAC constructed with the Analog Devices, Inc., LC2MOS process. It has VREF+ and VREF− reference inputs and an on-chip output amplifier. These can be configured to give a unipolar output range (0 V to +5 V, 0 V to +10 V) or bipolar output ranges (±5 V, ±10 V). The DAC uses a segmented architecture. The four MSBs in the DAC latch select one of the segments in a 16-resistor string. Both taps of the segment are buffered by amplifiers and fed to a 12-bit DAC, which provides a further 12 bits of resolution. This architecture ensures 16-bit monotonicity. Excellent integral linearity results from tight matching between the input offset voltages of the two buffer amplifiers. In addition to the excellent accuracy specifications, the AD7846 also offers a comprehensive microprocessor interface. There are 16 data I/O pins, plus control lines (CS, R/W, LDAC and CLR). R/W and CS allow writing to and reading from the I/O latch. This is the readback function, which is useful in ATE applications. LDAC allows simultaneous updating of DACs in a multi-DAC system and the CLR line will reset the contents of the DAC latch to 00…000 or 10…000 depending on the state of R/W. This means that the DAC output can be reset to 0 V in both the unipolar and bipolar configurations. The AD7846 is available in 28-lead plastic, ceramic, and PLCC packages. Product Highlights * 16-Bit Monotonicity The guaranteed 16-bit monotonicity over temperature makes the AD7846 ideal for closed-loop applications. * Readback The ability to read back the DAC register contents minimizes software routines when the AD7846 is used in ATE systems. * Power Dissipation Power dissipation of 100 mW makes the AD7846 the lowest power, high accuracy DAC on the market. * 16-bit monotonicity over temperature * ±2 LSBs integral linearity error * Microprocessor compatible with readback capability * Unipolar or bipolar output * Multiplying capability * Low power (100 mW typical) https://elecena.pl/product/17776235/lcmos-16-bit-voltage-output-dac 2021-04-18 https://elecena.pl/product/17776235/lcmos-16-bit-voltage-output-dac 2025-01-19