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AD5643R

Analog Devices
Part Number AD5643R
Manufacturer Analog Devices
Description Dual 12-/14-/16-Bit nanoDAC
Published Jan 16, 2007
Detailed Description www.DataSheet4U.com Dual 12-/14-/16-Bit nanoDAC® with 5 ppm/°C On-Chip Reference AD5623R/AD5643R/AD5663R FEATURES Low p...
Datasheet PDF File AD5643R PDF File

AD5643R
AD5643R

Overview
www.
DataSheet4U.
com Dual 12-/14-/16-Bit nanoDAC® with 5 ppm/°C On-Chip Reference AD5623R/AD5643R/AD5663R FEATURES Low power, smallest pin-compatible, dual nanoDAC AD5663R: 16 bits AD5643R: 14 bits AD5623R: 12 bits User-selectable external or internal reference External reference default On-chip 1.
25 V/2.
5 V, 5 ppm/°C reference 10-lead MSOP and 3 mm × 3 mm LFCSP 2.
7 V to 5.
5 V power supply Guaranteed monotonic by design Power-on reset to zero scale Per channel power-down Serial interface up to 50 MHz Hardware LDAC and CLR functions FUNCTIONAL BLOCK DIAGRAM VDD LDAC INPUT REGISTER INTERFACE LOGIC INPUT REGISTER DAC REGISTER STRING DAC B BUFFER VOUTB DAC REGISTER STRING DAC A VREFIN /VREFOUT 1.
25V/2.
5V REFERENCE BUFFER VOUTA SCLK SYNC DIN AD5623R/AD5643R/AD5663R POWER-ON RESET POWER-DOWN LOGIC 05858-001 LDAC CLR GND Figure 1.
APPLICATIONS Process control Data acquisition systems Portable battery-powered instruments Digital gain and offset adjustment Programmable voltage and current sources Programmable attenuators Table 1.
Related Devices Part No.
AD5663 Description 2.
7 V to 5.
5 V, dual 16-bit nanoDAC, with external reference GENERAL DESCRIPTION The AD5623R/AD5643R/AD5663R, members of the nanoDAC family, are low power, dual 12-, 14-, and 16-bit buffered voltageout digital-to-analog converters (DAC) that operate from a single 2.
7 V to 5.
5 V supply and are guaranteed monotonic by design.
The AD5623R/AD5643R/AD5663R have an on-chip reference.
The AD5623R-3/AD5643R-3/AD5663R-3 have a 1.
25 V, 5 ppm/°C reference, giving a full-scale output of 2.
5 V; and the AD5623R-5/ AD5643R-5/AD5663R-5 have a 2.
5 V, 5 ppm/°C reference, giving a full-scale output of 5 V.
The on-chip reference is off at power-up, allowing the use of an external reference; and all devices can be operated from a single 2.
7 V to 5.
5 V supply.
The internal reference is turned on by writing to the DAC.
The parts incorporate a power-on reset circuit that ensures the DAC output powers up to 0 V and rema...


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