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

DAC80508

現行

具有精密內部參考的真正 16 位元、8 通道、SPI、電壓輸出 DAC

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產品規格表

DAC80508

現行
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) 0 to 5.5 INL (max) (±LSB) 1 Settling time (µs) 5 Reference type Int Architecture R-2R Rating Catalog Sample/update rate (Msps) 0.2 Power consumption (typ) (mW) 33 Operating temperature range (°C) -40 to 125 Product type Precision DAC
Resolution (Bits) 16 Number of DAC channels 8 Interface type SPI Output type Buffered Voltage Output voltage range (V) 0 to 5.5 INL (max) (±LSB) 1 Settling time (µs) 5 Reference type Int Architecture R-2R Rating Catalog Sample/update rate (Msps) 0.2 Power consumption (typ) (mW) 33 Operating temperature range (°C) -40 to 125 Product type Precision DAC
DSBGA (YZF) 16 5.7121 mm² (2.39 mm × 2.39 mm) WQFN (RTE) 16 9 mm² (3 mm × 3 mm)
  • Performance
    • INL: ±1 LSB Maximum at 16-Bit Resolution
    • TUE: ±0.1% of FSR Maximum
  • Integrated 2.5 V Precision Internal Reference
    • Initial Accuracy: ±5 mV Maximum
    • Low Drift: 2 ppm/°C Typical, DAC80508
  • High Drive Capability: 20 mA with 0.5 V from Supply Rails
  • Flexible Output Configuration
    • User Selectable Gain: 2, 1 or ½
    • Reset to Zero Scale or Midscale
    • Clear Output Function: DACx0508C
  • Wide Operating Range
    • Power Supply: 2.7 V to 5.5 V
    • Temperature Range: –40˚C to 125˚C
  • 50 MHz SPI Compatible Serial Interface
    • 1.7 V to 5.5 V Operation
    • Daisy Chain Operation
    • CRC Error Check
  • Low Power: 0.6 mA/Channel at 5.5 V
  • Small Packages:
    • 3 mm × 3 mm, 16-Pin WQFN
    • 2.4 mm x 2.4 mm, 16-Pin DSBGA
  • Performance
    • INL: ±1 LSB Maximum at 16-Bit Resolution
    • TUE: ±0.1% of FSR Maximum
  • Integrated 2.5 V Precision Internal Reference
    • Initial Accuracy: ±5 mV Maximum
    • Low Drift: 2 ppm/°C Typical, DAC80508
  • High Drive Capability: 20 mA with 0.5 V from Supply Rails
  • Flexible Output Configuration
    • User Selectable Gain: 2, 1 or ½
    • Reset to Zero Scale or Midscale
    • Clear Output Function: DACx0508C
  • Wide Operating Range
    • Power Supply: 2.7 V to 5.5 V
    • Temperature Range: –40˚C to 125˚C
  • 50 MHz SPI Compatible Serial Interface
    • 1.7 V to 5.5 V Operation
    • Daisy Chain Operation
    • CRC Error Check
  • Low Power: 0.6 mA/Channel at 5.5 V
  • Small Packages:
    • 3 mm × 3 mm, 16-Pin WQFN
    • 2.4 mm x 2.4 mm, 16-Pin DSBGA

The DACx0508 is a pin-compatible family of low power, eight-channel, buffered voltage-output, digital-to-analog converters (DACs) with 16-, 14- and 12-bit resolution. The DACx0508 includes a 2.5-V, 5-ppm/°C internal reference, eliminating the need for an external precision reference in most applications. A user selectable gain configuration provides full-scale output voltages of 1.25 V (gain = ½), 2.5 V (gain = 1) or 5 V (gain = 2). The device operates from a single 2.7-V to 5.5-V supply, is specified monotonic and provides high linearity of ±1 LSB INL.

Communication to the DACx0508 is performed through a serial interface that operates at clock rates up to 50 MHz. The VIO pin enables serial interface operation from 1.7 V to 5.5 V. The DACx0508 flexible interface enables operation with a wide range of industry-standard microprocessors and microcontrollers.

The DACx0508 incorporates a power-on-reset circuit that powers up and maintains the DAC outputs at either zero scale or midscale until a valid code is written to the device. The device consumes low current of 0.6 mA/channel at 5.5 V, making it suitable for battery-operated equipment. A per-channel power-down feature reduces the device current consumption to 15 µA.

The DACx0508 is characterized for operation over the temperature range of –40°C to 125°C and is available in small packages.

The DACx0508 is a pin-compatible family of low power, eight-channel, buffered voltage-output, digital-to-analog converters (DACs) with 16-, 14- and 12-bit resolution. The DACx0508 includes a 2.5-V, 5-ppm/°C internal reference, eliminating the need for an external precision reference in most applications. A user selectable gain configuration provides full-scale output voltages of 1.25 V (gain = ½), 2.5 V (gain = 1) or 5 V (gain = 2). The device operates from a single 2.7-V to 5.5-V supply, is specified monotonic and provides high linearity of ±1 LSB INL.

Communication to the DACx0508 is performed through a serial interface that operates at clock rates up to 50 MHz. The VIO pin enables serial interface operation from 1.7 V to 5.5 V. The DACx0508 flexible interface enables operation with a wide range of industry-standard microprocessors and microcontrollers.

The DACx0508 incorporates a power-on-reset circuit that powers up and maintains the DAC outputs at either zero scale or midscale until a valid code is written to the device. The device consumes low current of 0.6 mA/channel at 5.5 V, making it suitable for battery-operated equipment. A per-channel power-down feature reduces the device current consumption to 15 µA.

The DACx0508 is characterized for operation over the temperature range of –40°C to 125°C and is available in small packages.
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技術文件

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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 DACx0508 Octal, 16-, 14-, 12-Bit, SPI, Voltage Output DAC with Internal Reference datasheet (Rev. D) PDF | HTML 2018/8/28
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 Precision, Three-Wire High-Voltage Output Transmitter Using the DAC80501 and XTR200 PDF | HTML 2026/1/27
Circuit design Precision, Three-Wire, Analog Current Output Transmitter Using the DAC80501 and XTR200 PDF | HTML 2026/1/27
應用說明 PLC Analog Output Module Architectures PDF | HTML 2025/1/29
Circuit design Programmable voltage output with sense connections circuit (Rev. A) PDF | HTML 2024/9/20
Circuit design Circuit for differential output from a single-ended precision DAC (Rev. A) PDF | HTML 2024/9/19
Circuit design Circuit for offset adjustment of input signals using precision DAC (Rev. A) PDF | HTML 2024/9/19
Circuit design Programmable, two-stage, high-side current source circuit (Rev. A) PDF | HTML 2024/9/19
證書 DAC80508-04EVM EU Declaration of Conformity (DoC) PDF | HTML 2023/11/13
白皮書 設計準確且多功能的鋰離子 電池測試解決方案 Download English Version 2020/11/10
Application brief High-Density DACs Offer Superior Noise And Accuracy for Laser Drive Applications 2018/10/2

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

DAC80508-04EVM — DAC80508 和 DAC80504 評估模組

DAC80508-04EVM 評估模組 (EVM) 是用於評估 DAC80504 和 DAC80508 裝置的平台。DAC80508 安裝在 EVM 上。使用者可以將 DAC80508 替換爲 DAC80504。這些裝置是 16 位元緩衝電壓輸出數位轉類比轉換器 (DAC)。裝置包括 2.5V 5ppm/°C 內部參考和使用者可選增益配置，可提供 1.25V (增益 = 0.5)、2.5V (增益 = 1) 或 5V (增益 = 2) 的全刻度輸出電壓。DAC80508 採用 2.7V 至 5.5V 單電源供電，經過單調驗證，並提供 ±1 LSB INL 的出色線性度。
使用指南: PDF | HTML
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開發模組 (EVM) 的 GUI

DAC8050XEVM-GUI — DAC8050XEVM GUI Installer

The DAC8050XEVM-GUI is a windows-based software GUI that controls the DAC80502-01EVM and DAC80508-04EVM through SPI and I2C communications using the FTDI4232 interface adapter tool.
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模擬型號

DACx0508 IBIS Model (Rev. D)

SLAM325D.ZIP (56 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.
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設計工具

SBAC228 — Source files for SBAA335

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設計工具

SBAM419 — Source Files for SBAA344

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參考設計

TIDA-01525 — 8 通道 16 位元 200mA 電流輸出 DAC 參考設計

此參考設計結合 DAC80508 8 通道，16 位元數位轉類比轉換器 (DAC) 的小尺寸與高性能與精密運算放大器，打造高密度且精準的電流來源解決方案。此參考設計具備 200 mA 的最大輸出電流，並允許最低 PVDD 供應電壓，以降低功耗以實現高效率。由於 DAC80508 的參考電壓雜訊低，以及 OPA2376 的低電壓與電流雜訊，因此也具備低電流雜訊輸出。 

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參考設計

TIDA-01583 — 熱源攝影機中用於紅外線感測器偵測器的超低雜訊偏壓參考設計

非冷卻微壓計偵測器的運作需要準確且超低雜訊的偏壓電壓。切換電源供應器，LDO 或 DAC 輸出無法簡單滿足此類需求。此參考設計採用德州儀器的精密 DAC，低雜訊精密放大器，高 PSRR，低雜訊 LDO，展現如何以低成本產生準確且超低雜訊的可編程偏壓電壓及電源供應，以供非冷卻微壓計偵測器使用。
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
DSBGA (YZF) 16 Ultra Librarian
WQFN (RTE) 16 Ultra Librarian
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