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數據轉換器
數位轉類比轉換器 (DAC)
精密 DAC (≤10 MSPS)

DAC81408

現行

具有整合式內部參考的 8 通道、16 位元高電壓輸出 DAC

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產品規格表

DAC81408

現行
產品規格表 立即訂購

產品詳細資料

Resolution (Bits) 16 Number of DAC channels 8 Interface type SPI Output type Buffered Voltage Output voltage range (V) -10 to 10, -2.5 to 2.5, -20 to 20, -5 to 5 INL (max) (±LSB) 1 Settling time (µs) 20 Reference type Int Architecture R-2R Rating Catalog Features Integrated Temp Sensor Power consumption (typ) (mW) 315 Operating temperature range (°C) -40 to 125
Resolution (Bits) 16 Number of DAC channels 8 Interface type SPI Output type Buffered Voltage Output voltage range (V) -10 to 10, -2.5 to 2.5, -20 to 20, -5 to 5 INL (max) (±LSB) 1 Settling time (µs) 20 Reference type Int Architecture R-2R Rating Catalog Features Integrated Temp Sensor Power consumption (typ) (mW) 315 Operating temperature range (°C) -40 to 125
VQFN (RHA) 40 36 mm² (6 mm × 6 mm)
  • Performance
    • Specified Monotonic at 16-Bit Resolution
    • INL: ±1 LSB Maximum at 16-Bit Resolution
    • TUE: ±0.1% of FSR Maximum
  • Integrated 2.5-V Precision Internal Reference
    • Initial Accuracy: ±2.5 mV Maximum
    • Low Drift: 5 ppm/˚C Typical
  • Flexible Output Configuration
    • Output Range: ±2.5 V, ±5 V, ±10 V, ±20 V
      0 to 5 V, 0 to 10 V, 0 to 20 V, 0 to 40 V
    • Differential Output Mode
  • High Drive Capability: ±25 mA with 1.5 V from Supply Rails
  • Three Dedicated A-B Toggle Pins for Dither Signal Generation
  • Analog Temperature Output
    • Sensor Gain of –4 mV/˚C
  • 50-MHz SPI Compatible Serial Interface
    • 4-Wire Mode, 1.7-V to 5.5-V Operation
    • Daisy Chain Operation
    • CRC Error Check
  • Temperature Range: –40˚C to +125˚C
  • Small Package
    • 6 mm × 6 mm, 40-Pin VQFN
  • Performance
    • Specified Monotonic at 16-Bit Resolution
    • INL: ±1 LSB Maximum at 16-Bit Resolution
    • TUE: ±0.1% of FSR Maximum
  • Integrated 2.5-V Precision Internal Reference
    • Initial Accuracy: ±2.5 mV Maximum
    • Low Drift: 5 ppm/˚C Typical
  • Flexible Output Configuration
    • Output Range: ±2.5 V, ±5 V, ±10 V, ±20 V
      0 to 5 V, 0 to 10 V, 0 to 20 V, 0 to 40 V
    • Differential Output Mode
  • High Drive Capability: ±25 mA with 1.5 V from Supply Rails
  • Three Dedicated A-B Toggle Pins for Dither Signal Generation
  • Analog Temperature Output
    • Sensor Gain of –4 mV/˚C
  • 50-MHz SPI Compatible Serial Interface
    • 4-Wire Mode, 1.7-V to 5.5-V Operation
    • Daisy Chain Operation
    • CRC Error Check
  • Temperature Range: –40˚C to +125˚C
  • Small Package
    • 6 mm × 6 mm, 40-Pin VQFN

The DAC81408, DAC71408, and DAC61408 (DACx1408) are a pin-compatible family of 8-channel, buffered, high-voltage output digital-to-analog converters (DACs) with 16-, 14- and 12-bit resolution. The DACx1408 includes a low drift, 2.5-V internal reference, eliminating the need for an external precision reference in most applications. These devices are specified monotonic and provide high linearity of ±1 LSB INL.

A user selectable output configuration enables full-scale bipolar output voltages: ±20 V, ±10 V, ±5 V or ±2.5 V and full-scale unipolar output voltages: 40 V, 20 V, 10 V or 5 V. The full-scale output range for each DAC channel is independently programmable. The integrated DAC output buffers can sink or source up to 25 mA thus limiting the need of additional operational amplifiers. Each pair of channels can be configured to provide a differential output with offset calibration. The three dedicated A-B toggle pins enable dither signal generation with up to three possible frequencies.

The DACx1408 incorporates a power-on-reset circuit that connects the DAC outputs to ground at power-up. The outputs remain at this state until the device registers are properly configured for operation.

Communication to the DACx1408 is performed through a 4-wire serial interface that supports operation from 1.7 V to 5.5 V.

The DAC81408, DAC71408, and DAC61408 (DACx1408) are a pin-compatible family of 8-channel, buffered, high-voltage output digital-to-analog converters (DACs) with 16-, 14- and 12-bit resolution. The DACx1408 includes a low drift, 2.5-V internal reference, eliminating the need for an external precision reference in most applications. These devices are specified monotonic and provide high linearity of ±1 LSB INL.

A user selectable output configuration enables full-scale bipolar output voltages: ±20 V, ±10 V, ±5 V or ±2.5 V and full-scale unipolar output voltages: 40 V, 20 V, 10 V or 5 V. The full-scale output range for each DAC channel is independently programmable. The integrated DAC output buffers can sink or source up to 25 mA thus limiting the need of additional operational amplifiers. Each pair of channels can be configured to provide a differential output with offset calibration. The three dedicated A-B toggle pins enable dither signal generation with up to three possible frequencies.

The DACx1408 incorporates a power-on-reset circuit that connects the DAC outputs to ground at power-up. The outputs remain at this state until the device registers are properly configured for operation.

Communication to the DACx1408 is performed through a 4-wire serial interface that supports operation from 1.7 V to 5.5 V.
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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 DACx1408 8-Channel, 16-,14-,12-Bit, High-Voltage Output DACs with Internal Reference datasheet (Rev. A) PDF | HTML 2018/11/29
應用說明 Precision Data Converter Selection Guide PDF | HTML 2026/5/14
應用說明 A Simple, Java-Based CRC Calculator PDF | HTML 2026/3/4
Circuit design 來自 +5V 供電電源且用於高電壓資料轉換器的精密、±15V 電 源供應電路 PDF | HTML Download English Version PDF | HTML 2025/12/9
Circuit design Output Overvoltage Protection Circuit for Voltage DACs Without an External Feedback Pin PDF | HTML 2025/6/18
應用說明 Optimized Power-Supply Circuit Solution for DAC81416 High-Voltage Output PDF | HTML 2021/9/19
Application brief DACx1416 Delivers Optimized Solution to Mach Zehnder Modulator Biasing 2018/6/29

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

DAC81416-08EVM — DAC81416-08 評估模組

DAC81416-08EVM 是簡單易用的平台，可用於評估 DAC81416 和 DAC81408 產品的功能與性能。此板隨附已安裝的 DAC81416。DAC81416-08EVM 具有選用電路和跨接器，可針對不同應用來配置產品。
使用指南: PDF | HTML
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開發模組 (EVM) 的 GUI

DAC81416-08EVM-GUI — Labview GUI for the DAC81416-08EVM

The DAC81416-08EVM-GUI is a windows-based software GUI that controls the DAC81416-08EVM through SPI and I2C communications using the FTDI4232 interface adapter tool.
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支援軟體

SLAC775 — DAC81408EVM Software

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模擬型號

DAC81408 IBIS Model

SLAM335.ZIP (87 KB) - IBIS 模型
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設計工具

ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.

The ADC-TO-VREF-SELECT tool enables the pairing of TI analog-to-digital converters (ADCs) and series voltage references. Users can select an ADC device and the desired reference voltage, and the tool will list up to two voltage reference recommendations.
支援產品和硬體
封裝 針腳 CAD 符號、佔位空間與 3D 模型
VQFN (RHA) 40 Ultra Librarian
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