Data Sheet
Quad, 12-/14-/16-Bit nanoDACs with 5 ppm/°C On-Chip Reference AD5624R/AD5644R/AD5664R
FEATURES
Low power, smallest pin-compatible, quad nanoDACs AD5664R: 16 bits AD5644R: 14 bits AD5624R: 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; 10-lead, 3 mm × 3 mm LFCSP_WD; and 12-ball, 1.665 mm × 2.245 mm WLCSP
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
APPLICATIONS
Process controls Data acquisition systems Portable battery-powered instruments Digital gain and offset adjustment Programmable voltage and current sources Programmable attenuators
FUNCTIONAL BLOCK DIAGRAM
VDD
GND
VREFIN/VREFOUT
AD5624R/AD5644R/AD5664R
1.25V/2.5V REF
SCLK SYNC
DIN
INPUT REGISTER
DAC REGISTER
STRING DAC A
BUFFER
VOUTA
INTERFACE LOGIC
INPUT REGISTER
DAC REGISTER
STRING DAC B
BUFFER
INPUT REGISTER
DAC .