GENERAL DESCRIPTION
The AD5379 contains 40 14-bit DACs in one CSPBGA package. The AD5379 provides a bipolar output range determined by the voltages applied to the VREF(+) and VREF(−) inputs. The maximum output voltage span is 17.5 V, corresponding to a bipolar output range of −8.75 V to +8.75 V, and is achieved with reference voltages of VREF(−) = −3.5 V and VREF(+) = +5 V.

FEATURES
   40-channel DAC in 13 mm × 13 mm 108-lead CSPBGA
   Guaranteed monotonic to 14 bits
   Buffered voltage outputs
      Output voltage span of 3.5 V × VREF(+)
      Maximum output voltage span of 17.5 V
   System calibration function allowing user-programmable
      offset and gain
   Pseudo differential outputs relative to REFGND
   Clear function to user-defined REFGND (CLR pin)
   Simultaneous update of DAC outputs (LDAC pin)
   DAC increment/decrement mode
   Channel grouping and addressing features
   Interface options:
      Parallel interface
      DSP/microcontroller-compatible, 3-wire serial interface
   2.5 V to 5.5 V JEDEC-compliant digital levels
   SDO daisy-chaining option
   Power-on reset
   Digital reset (RESET pin and soft reset function)

APPLICATIONS
   Level setting in automatic test equipment (ATE)
   Variable optical attenuators (VOA)
   Optical switches
   Industrial control systems