Data Sheet
FEATURES
Quad-channel high voltage DAC 12-bit resolution Pin selectable 30 V or 60 V output range Integrated ...
Data Sheet
FEATURES
Quad-channel high
voltage DAC 12-bit resolution Pin selectable 30 V or 60 V output range Integrated precision reference Low power serial interface with readback capability Integrated temperature sensor alarm function Power-on reset Simultaneous updating via LDAC Wide operating temperature: −40°C to +105°C
High
Voltage, Quad-Channel 12-Bit
Voltage Output DAC AD5504
GENERAL DESCRIPTION
The AD5504 is a quad-channel, 12-bit, serial input, digital-toanalog converter with on-chip high
voltage output
amplifiers and an integrated precision reference. The DAC output
voltage ranges are programmable via the range select pin (R_SEL). If R_SEL is held high, the DAC output ranges are 0 V to 30 V. If R_SEL is held low, the DAC output ranges are 0 V to 60 V. The on-chip output
amplifiers allow an output swing within the range of AGND + 0.5 V to VDD − 0.5 V. The AD5504 has a high speed serial interface, which is compatible with SPI®-, QSPI™-, MICROWIRE™-, and DSP-interface standards and can handle clock speeds of up to 16.667 MHz.
APPLICATIONS
Programmable
voltage sources High
voltage LED drivers Receiver bias in optical communications
FUNCTIONAL BLOCK DIAGRAM
CLR R_SEL VLOGIC LDAC VDD 1713kΩ – VOUTA + 1713kΩ 122.36kΩ INPUT REGISTER B DAC REGISTER B DAC B 12 – VOUTB + 1713kΩ 122.36kΩ INPUT REGISTER C DAC REGISTER C DAC C 12 – VOUTC + 1713kΩ 122.36kΩ INPUT REGISTER D DAC REGISTER D DAC D 12 – VOUTD +
REFERENCE 122.36kΩ SDI SDO SCLK SYNC ALARM INPUT CONTROL LOGIC 12 INPU...