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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八通道、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 Settling time (µs) 20 Features Integrated Temp Sensor Reference type Int Architecture R-2R Rating Catalog Output range (max) (mA/V) 20 Output range (min) (mA/V) -20 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 Settling time (µs) 20 Features Integrated Temp Sensor Reference type Int Architecture R-2R Rating Catalog Output range (max) (mA/V) 20 Output range (min) (mA/V) -20 Power consumption (typ) (mW) 315 Operating temperature range (°C) -40 to 125
VQFN (RHA) 40 36 mm² 6 x 6
  • 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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* Data sheet DACx1408 8-Channel, 16-,14-,12-Bit, High-Voltage Output DACs with Internal Reference datasheet (Rev. A) PDF | HTML 2018年 11月 29日
Application note Optimized Power-Supply Circuit Solution for DAC81416 High-Voltage Output PDF | HTML 2021年 9月 19日
EVM User's guide DAC81408 EVM User's Guide (Rev. A) 2018年 12月 6日
Application brief DACx1416 Delivers Optimized Solution to Mach Zehnder Modulator Biasing 2018年 6月 29日

設計與開發

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開發板

DAC81408EVM — DAC81408 8 通道 16 位元高電壓輸出 DAC 評估模組

The DAC81408 evaluation module (EVM) is an easy-to-use platform for evaluating the functionality and performance of the DAC81408 device. DAC81408 is an 8-channel, buffered, high-voltage-output, digital-to-analog converter (DAC) in 16-bit resolution with an integrated 2.5-V internal (...)

使用指南: PDF
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SLAC775 — DAC81408EVM Software

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產品
精密 DAC (≤10 MSPS)
DAC81408 — 具有整合式內部參考的八通道、16 位元高電壓輸出 DAC
硬體開發
開發板
DAC81408EVM — DAC81408 8 通道 16 位元高電壓輸出 DAC 評估模組
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模擬型號

DAC81408 IBIS Model

SLAM335.ZIP (87 KB) - IBIS Model
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計算工具

ANALOG-ENGINEER-CALC — 類比工程師計算機

The Analog Engineer’s Calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting op-amp gain with feedback (...)
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PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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模擬工具

TINA-TI — 基於 SPICE 的類比模擬程式

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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