AD5379 40-Channel, 14-Bit, Parallel and Serial Input, Bipolar Voltage-Output DAC

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.

The AD5379 offers guaranteed operation over a wide VSS/VDD supply range from ±11.4 V to ±16.5 V. The output amplifier headroom requirement is 2.5 V operating with a load current of 1.5 mA, and 2 V operating with a load current of 0.5 mA.

The AD5379 contains a double-buffered parallel interface in which 14 data bits are loaded into one of the input registers under the control of the WR, CS, and DAC Channel Address Pins A0 to A7. It also has a 3-wire serial interface that is com-patible with SPI®, QSPI™, MICROWIRE™, and DSP® interface standards and can handle clock speeds of up to 50 MHz.

The DAC outputs are updated upon reception of new data into the DAC registers. All the outputs can be simultaneously updated by taking the LDAC input low. Each channel has a programmable gain and an offset adjust register.

Each DAC output is gained and buffered on-chip with respect to an external REFGND input. The DAC outputs can also be switched to REFGND via the CLR pin.

Applications
  • Level setting in automatic test equipment (ATE)
  • Variable optical attenuators (VOA)
  • Optical switches
  • Industrial control systems
产品特点和性能优势
  • 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
  • Please see data sheet for additional features
  • 数模转换器 (DAC)
    专用标准产品
    数据手册
    文档备注
    AD5379: 40-Channel, 14-Bit, Parallel and Serial Input, Voltage-Output DAC Data Sheet (Rev. B)PDF 763 kB
    产品聚焦
    文档备注
    Extending the denseDAC™ Multichannel D/AsPDF 1100 kB
    订购信息
    产品型号封装包装数量温度范围美金报价 100-499美金报价 1000+RoHS
    AD5379ABC 量产108 ball CSPBGA (13x13x1.7mm)OTH 160-40 至 85至00N
    AD5379ABCZ 量产108 ball CSPBGA (13x13x1.7mm)OTH 160-40 至 85至71.1360.47Y
    评估板
    产品型号描述美金报价RoHS
    EVAL-AD5379EBZEvaluation Board159Y
    参考资料
    AD5379: 40-Channel, 14-Bit, Parallel and Serial Input, Voltage-Output DAC Data Sheet (Rev. B) ad5379
    Extending the denseDAC™ Multichannel D/As ad5532
    Digital to Analog Converters ICs Solutions Bulletin ad5590