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Analog Devices AD7846AP

Analog Devices

Part Number:	Analog Devices AD7846AP
Manufacturer:	Analog Devices
Part Type:	All Parts > Integrated Circuits (ICs) > Data Converter ICs > Analog-Devices-AD7846AP
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Description:	DAC 1-CH Resistor-String 16-bit 28-Pin PLCC Tube

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DAC 1-CH Resistor-String 16-bit 28-Pin PLCC Tube

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DAC 1-CH Resistor-String 16-bit 28-Pin PLCC Tube
28-LCC (J-Lead) Voltage - Buffered String DAC S-PQCC-J28 digital to analog converter -15V 9mus 4.57mm -40C~85C
IC DAC 16BIT LC2MOS VOUT 28PLCC
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.

Analog Devices AD7846AP

Analog Devices

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