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AD5378:  32-Channel 14-Bit Serial/Parallel Bipolar D/A Converter

产品详情

The AD5378 contains 32 14-bit DACs in one CSPBGA package. The AD5378 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 AD5378 guarantees 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 AD5378 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, which is compatible with SPI®, QSPI™, MICROWIRE™, and DSP interface standards and can handle clock speeds of up to 50 MHz.

The DAC outputs are updated when the DAC registers receive new data. All the outputs can be updated simultaneously 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. Table 1 and Table 2 show the product portfolio for high channel count bipolar and unipolar voltage output DACs.

Applications

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

特点和优势

  • 32-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
  • See data sheet for additional features

AD5378 Functional Block Diagram

提示:

AD5379评估板(EVAL-AD5379EB)可用于评估AD5378。

文档

快讯名称 内容类型 文件类型
AD5378: 32-Channel, 14-Bit, Parallel and Serial Input, Bipolar Voltage Output DAC Data Sheet (Rev A, 07/2009) (pdf, 751 kB) 产品数据手册 PDF
Digital to Analog Converters ICs Solutions Bulletin  (pdf) 解决方案通报 PDF
Automatic Test Equipment Brochure  (pdf, 2037 kB) 概况 PDF
ADI公司扩展了其denseDAC™数据转换器系列 概况 HTML
Extending the denseDAC™ Multichannel D/As  (pdf, 1100 kB)
denseDAC multichannel D/As are Analog Devices digital-to-analog converters with 8 to 40 channels, offering 12-bit to 16-bit resolution.
概况 PDF
RAQs index 非常见问题解答 HTML
术语表 专业词汇表 HTML

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Sample样片申请及购买

价格,封装及供货状态

AD5378 型号选项
产品型号 封装 引脚 温度范围 包装和数量 报价*(100-499) 报价*1000 pcs RoHS 查看PCN/PDN 查看库存/
购买/样片
AD5378ABC 产品状态: 最后订购时间 108 ball CSPBGA (13x13x1.7mm) 108 工业 Tray, 160 $ 58.39 $ 52.54 N  材料信息 查看PCN/PDN 订购
AD5378ABCZ 产品状态: 量产 108 ball CSPBGA (13x13x1.7mm) 108 工业 Tray, 160 $ 50.55 $ 45.49 Y  材料信息 通知我 订购
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