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

DAC7760

現行

適用 4-20mA 電流迴路應用的 12 位元單通道可編程電流/電壓輸出 DAC

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產品規格表

DAC7760

現行
產品規格表 立即訂購

產品詳細資料

Resolution (Bits) 12 Number of DAC channels 1 Interface type SPI Output type Buffered Current, Buffered Voltage Output voltage range (V) -10 to 10, -11 to 11, -5 to 5, -5.5 to 5.5, 0 to 10, 0 to 11, 0 to 5, 0 to 5.5 INL (max) (±LSB) 3 Settling time (µs) 10 Reference type Ext, Int Architecture String Rating Catalog Features Current Output, Low Power Sample/update rate (Msps) 0.04 Power consumption (typ) (mW) 135 Operating temperature range (°C) -40 to 125 Product type Special-function DAC
Resolution (Bits) 12 Number of DAC channels 1 Interface type SPI Output type Buffered Current, Buffered Voltage Output voltage range (V) -10 to 10, -11 to 11, -5 to 5, -5.5 to 5.5, 0 to 10, 0 to 11, 0 to 5, 0 to 5.5 INL (max) (±LSB) 3 Settling time (µs) 10 Reference type Ext, Int Architecture String Rating Catalog Features Current Output, Low Power Sample/update rate (Msps) 0.04 Power consumption (typ) (mW) 135 Operating temperature range (°C) -40 to 125 Product type Special-function DAC
VQFN (RHA) 40 36 mm² (6 mm × 6 mm) HTSSOP (PWP) 24 49.92 mm² (7.8 mm × 6.4 mm)
  • Current output: 4 mA to 20 mA; 0 mA to 20 mA; 0 mA to 24 mA
  • Voltage output:
    • 0 V to 5 V; 0 V to 10 V; ±5 V; ±10 V
    • 0 V to 5.5 V; 0 V to 11 V; ±5.5 V; ±11 V (10% overrange)
  • ±0.1% FSR total unadjusted error (TUE) maximum
  • DNL: ±1 LSB maximum
  • Simultaneous voltage and current output
  • Internal 5-V reference (10 ppm/°C, maximum)
  • Internal 4.6-V power-supply output
  • Reliability features:
    • CRC check and watchdog timer
    • Thermal alarm
    • Open alarm, short current limit
  • Wide temperature range: –40°C to 125°C
  • Packages: 6-mm × 6-mm 40-pin VQFN and 24-pin HTSSOP
  • Current output: 4 mA to 20 mA; 0 mA to 20 mA; 0 mA to 24 mA
  • Voltage output:
    • 0 V to 5 V; 0 V to 10 V; ±5 V; ±10 V
    • 0 V to 5.5 V; 0 V to 11 V; ±5.5 V; ±11 V (10% overrange)
  • ±0.1% FSR total unadjusted error (TUE) maximum
  • DNL: ±1 LSB maximum
  • Simultaneous voltage and current output
  • Internal 5-V reference (10 ppm/°C, maximum)
  • Internal 4.6-V power-supply output
  • Reliability features:
    • CRC check and watchdog timer
    • Thermal alarm
    • Open alarm, short current limit
  • Wide temperature range: –40°C to 125°C
  • Packages: 6-mm × 6-mm 40-pin VQFN and 24-pin HTSSOP

The DACx760 are precision, fully integrated, 12-bit and 16-bit digital-to-analog converters (DACs) designed to meet the requirements of industrial process-control applications. These devices are programmable as a current output with a range of 4 mA to 20 mA, 0 mA to 20 mA, or 0 mA to 24 mA; or as a voltage output with a range of 0 V to 5 V, 0 V to 10 V, ±5 V, or ±10 V with a 10% overrange (0 V to 5.5 V, 0 V to 11 V, ±5.5 V, or ±11 V). Both current and voltage outputs can be simultaneously enabled while being controlled by one data register.

These devices include a power-on-reset function for powering up in a known state (both IOUT and VOUT are disabled and in a Hi-Z state). The CLR and CLR-SEL pins set the voltage outputs to zero-scale or midscale, and the current output to the low end of the range if the output is enabled. Zero and gain registers can be programmed to digitally calibrate the device in the end system. The output slew rate is also programmable by register. These devices can superimpose an external HART signal on the current output, and operate with either a single 10-V to 36-V supply, or dual supplies of up to ±18 V.

The DACx760 are precision, fully integrated, 12-bit and 16-bit digital-to-analog converters (DACs) designed to meet the requirements of industrial process-control applications. These devices are programmable as a current output with a range of 4 mA to 20 mA, 0 mA to 20 mA, or 0 mA to 24 mA; or as a voltage output with a range of 0 V to 5 V, 0 V to 10 V, ±5 V, or ±10 V with a 10% overrange (0 V to 5.5 V, 0 V to 11 V, ±5.5 V, or ±11 V). Both current and voltage outputs can be simultaneously enabled while being controlled by one data register.

These devices include a power-on-reset function for powering up in a known state (both IOUT and VOUT are disabled and in a Hi-Z state). The CLR and CLR-SEL pins set the voltage outputs to zero-scale or midscale, and the current output to the low end of the range if the output is enabled. Zero and gain registers can be programmed to digitally calibrate the device in the end system. The output slew rate is also programmable by register. These devices can superimpose an external HART signal on the current output, and operate with either a single 10-V to 36-V supply, or dual supplies of up to ±18 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 DACx760 Single-Channel, 12- and 16-Bit Programmable Current and Voltage Output Digital-to-Analog Converters for 4-mA to 20-mA Current-Loop Applications datasheet (Rev. D) PDF | HTML 2021/12/7
應用說明 A Simple, Java-Based CRC Calculator PDF | HTML 2026/3/4
Circuit design Circuit Replacing HART® Modem Device Competitors With the DAC8740H PDF | HTML 2026/1/29
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 With an External Feedback Pin PDF | HTML 2025/7/29
應用說明 A Basic Guide to the HART Protocol PDF | HTML 2023/11/9
應用說明 Combined Voltage and Current Output with the DACx760 2014/7/24
應用說明 Implementing HART™ Communication With the DAC8760 Family 2014/1/16

設計與開發

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開發板

DAC7760EMC-EVM — DAC7760 強化評估模組

 

DAC7760EMC-EVM（EMC 強化型評估模組）提供一個易於使用的平台，可評估 DAC7760（12 位元、電壓輸出和電流輸出 DAC）在嚴苛工業環境中的性能和運作特性。此 EVM 是一個完整的評估套件，其中包含 USB 架構的電路板 (SM-USB-DIG)、USB 傳輸線和評估軟體，可搭配配備 Microsoft™ Windows XP 和 Windows 7 作業系統的個人電腦使用。

 

使用指南: PDF
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開發板

DAC7760EVM — DAC7760 12 位元可編程電流和電壓輸出 DAC 評估模組

The DAC7760EVM (evaluation module) provides an easy to use platform for evaluation of the performance and operating characteristics of the DAC7760 (12-bit, Voltage Output & Current Output DAC). The EVM is a complete evaluation kit that includes a USB-based motherboard called the (...)

使用指南: PDF
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支援軟體

SBOC433 — DAC7760EVM and DAC8760EVM Software

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模擬型號

DAC8750-60 IBIS Model

SBAM177.ZIP (50 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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參考設計

TIDA-00118 — 適用於可編程邏輯控制器 (PLC) 的 16 位元類比輸出模組參考設計

此參考設計提供適用於可編程邏輯控制器 (PLC) 的完整 4 通道、16 位元類比輸出模組設計。本產品經過設計與完整測試，符合工業自動化系統的 IEC61000-4 EMC 與突波要求。此小型設計實作四個 16 位元數位轉類比轉換器，其具有整合式輸出驅動器，可驅動多個電流和電壓輸出範圍。  使用 TI 的高速 4,242 伏特峰值數位隔離器技術，將數位資料和控制線路與 PLC 主機進行電氣隔離。此設計也包含過電流保護的隔離式電源供應器，可提供所有必要的模組電壓。此設計擁有完整文件、測試結果、設計檔案和必要的韌體，更易於評估完整訊號鏈性能並縮短上市時間。

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參考設計

TIPD119 — 適合工業應用類比輸出的電壓與電流輸出終端參考設計

此驗證參考設計針對工業應用中的類比輸出，實作結合電壓與電流輸出終端。  DAC8760 與 OPA192 的結合產生了電壓和電流輸出組合，允許單一雙終端輸出連接器用於電壓和電流輸出。  此設計具備小於 0.1% 的總未調整誤差 (TUE) ，適合精密應用。此設計使用 ISO7641FC 數位隔離器與背板/主機控制器電氣隔離。

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參考設計

TIPD153 — 單通道工業電壓及電流輸出驅動器、隔離式、經 EMC/EMI 測試的參考設計

此 TI CerTIfied 參考設計採用 DAC8760 與 ISO7641 實現隔離式單通道工業電壓與電流輸出模組。  此電路具備受數位控制的電壓或電流輸出，可根據 DAC8760 的內部暫存器設定，產生 0-20mA、0-24mA、4-20mA、0-5V、+/-5V、0-10V 與 +/-10V 的標準輸出。此設計包含通過 IEC61000-4-2/3/4/6 測試所需的必要外部保護電路，並包含 IEC61000-4 測試結果。  保護電路不會對電壓或電流輸出性能產生負面影響，使兩種輸出的總未調整誤差 (TUE) 皆 < 0.1%。

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封裝 針腳 CAD 符號、佔位空間與 3D 模型
VQFN (RHA) 40 Ultra Librarian
HTSSOP (PWP) 24 Ultra Librarian
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