16-Channel 12-/16-Bit nanoDAC
INTERFACE LOGIC 17326-001
Data Sheet
16-Channel, 12-/16-Bit nanoDAC+ with 2 ppm/°C Voltage Reference Temperature Coeff...
Description
INTERFACE LOGIC 17326-001
Data Sheet
16-Channel, 12-/16-Bit nanoDAC+ with 2 ppm/°C Voltage Reference Temperature Coefficient, SPI Interface
AD5674/AD5674R/AD5679/AD5679R
FEATURES
High performance High relative accuracy (INL): ±4 LSB maximum at 16 bits (AD5679/AD5679R) TUE: ±0.14% of FSR maximum Offset error: ±1.5 mV maximum Gain error: ±0.06% of FSR maximum Low drift, 2.5 V voltage reference temperature coefficient: 2 ppm/°C typical 40 mA short-circuit current
Wide operating ranges −40°C to +125°C temperature range 2.7 V to 5.5 V power supply range
Simplified implementation User selectable gain of 1 or 2 (GAIN pin) 1.8 V logic compatibility
50 MHz serial peripheral interface (SPI) with readback or daisy chain
28-lead, 4 mm × 4 mm, RoHS compliant LFCSP
APPLICATIONS
Optical transceivers Base station power amplifiers Process control (programmable logic controller (PLC)
input/output cards) Industrial automation Data acquisition systems
FUNCTIONAL BLOCK DIAGRAM
VLOGIC
VDD
VREF
AD5679R/AD5679/AD5674R/AD5674
INPUT REGISTER
DAC REGISTER
2.5V REF1
STRING DAC 0
BUFFER
SCLK SYNC
SDI
INPUT REGISTER
INPUT REGISTER
INPUT REGISTER
DAC REGISTER
DAC REGISTER
DAC REGISTER
STRING DAC 1 STRING DAC 2 STRING DAC 3
BUFFER BUFFER BUFFER
VOUT0 VOUT1 VOUT2 VOUT3
SDO
LDAC RESET
POWER-ON RESET
INPUT REGISTER
INPUT REGISTER
DAC REGISTER
DAC REGISTER
STRING DAC 14
BUFFER
VOUT14
STRING DAC 15
BUFFER
VOUT15
GAIN ×1/×2
POWER-DOWN LOGIC
1ONLY APPLICABLE TO AD5679R/AD5674R.
Fig...
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