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

DAC8775

現行

16 位元四通道可編程電流輸出與電壓輸出類比轉數位轉換器 (DAC)

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產品規格表

DAC8775

現行
產品規格表 立即訂購

產品詳細資料

Resolution (Bits) 16 Number of DAC channels 4 Interface type SPI Output type Buffered Current, Buffered Voltage Output voltage range (V) -10 to 10, -12 to 12, -5 to 5, 0 to 10, 0 to 5, 0 to 6 INL (max) (±LSB) 12 Settling time (µs) 10 Reference type Ext, Int Architecture String Rating Catalog Features Integrated Buck Boost Converter, Low Power Sample/update rate (Msps) 0.033 Power consumption (typ) (mW) 530 Operating temperature range (°C) -40 to 125 Product type Special-function DAC
Resolution (Bits) 16 Number of DAC channels 4 Interface type SPI Output type Buffered Current, Buffered Voltage Output voltage range (V) -10 to 10, -12 to 12, -5 to 5, 0 to 10, 0 to 5, 0 to 6 INL (max) (±LSB) 12 Settling time (µs) 10 Reference type Ext, Int Architecture String Rating Catalog Features Integrated Buck Boost Converter, Low Power Sample/update rate (Msps) 0.033 Power consumption (typ) (mW) 530 Operating temperature range (°C) -40 to 125 Product type Special-function DAC
VQFN (RWF) 72 100 mm² 10 x 10
  • Output Current:
    • 0 mA to 24 mA; 3.5 mA to 23.5 mA; 0 mA to 20 mA; 4 mA to 20 mA; ±24 mA
  • Output Voltage (with/without 20% over-range):
    • 0 V to 5 V; 0 V to 10 V; ±5 V; ±10 V
    • 0 V to 6 V; 0 V to 12 V; ±6 V; ±12 V
  • Adaptive Power Management
  • Single Wide Power Supply Pin (12 V – 36 V)
  • ±0.1% FSR Total Unadjusted Error (TUE)
  • DNL: ±1 LSB Max
  • Internal 5-V Reference (10 ppm/°C max)
  • Internal 5-V Digital Power Supply Output
  • CRC/Frame Error Check, Watchdog Timer
  • Thermal Alarm, Open/Short Circuit for System Reliability
  • Safe Actions on Alarm Condition
  • Auto Learn Load Detection
  • Wide Temperature Range: –40°C to +125°C
  • Output Current:
    • 0 mA to 24 mA; 3.5 mA to 23.5 mA; 0 mA to 20 mA; 4 mA to 20 mA; ±24 mA
  • Output Voltage (with/without 20% over-range):
    • 0 V to 5 V; 0 V to 10 V; ±5 V; ±10 V
    • 0 V to 6 V; 0 V to 12 V; ±6 V; ±12 V
  • Adaptive Power Management
  • Single Wide Power Supply Pin (12 V – 36 V)
  • ±0.1% FSR Total Unadjusted Error (TUE)
  • DNL: ±1 LSB Max
  • Internal 5-V Reference (10 ppm/°C max)
  • Internal 5-V Digital Power Supply Output
  • CRC/Frame Error Check, Watchdog Timer
  • Thermal Alarm, Open/Short Circuit for System Reliability
  • Safe Actions on Alarm Condition
  • Auto Learn Load Detection
  • Wide Temperature Range: –40°C to +125°C

The DAC8775 is a quad-channel precision, fully integrated, 16-bit, digital-to-analog converter (DAC) with adaptive power management, and is designed to meet the requirements of industrial control applications. The adaptive power management circuit, when enabled, minimizes the power dissipation of the chip. When programmed as a current output, the supply voltage on the current output driver is regulated between 4.5 V and 32 V based on continuous feedback of voltage on the current output pin via an integrated buck/boost converter. When programmed as a voltage output, this circuit generates a programmable supply voltage for the voltage output stage (±15 V). DAC8775 also contains an LDO to generate the digital supply (5 V) from a single power supply pin.

DAC8775 is also implemented with a Highway Addressable Remote Transducer (HART) Signal Interface to superimpose an external HART signal on the current output. The slew rate of the current output DAC is register programmable. The device can operate with a single external power supply of +12 V to +36 V using the integrated buck/boost converters or with external power supplies when the buck/boost converters are disabled.

The DAC8775 is a quad-channel precision, fully integrated, 16-bit, digital-to-analog converter (DAC) with adaptive power management, and is designed to meet the requirements of industrial control applications. The adaptive power management circuit, when enabled, minimizes the power dissipation of the chip. When programmed as a current output, the supply voltage on the current output driver is regulated between 4.5 V and 32 V based on continuous feedback of voltage on the current output pin via an integrated buck/boost converter. When programmed as a voltage output, this circuit generates a programmable supply voltage for the voltage output stage (±15 V). DAC8775 also contains an LDO to generate the digital supply (5 V) from a single power supply pin.

DAC8775 is also implemented with a Highway Addressable Remote Transducer (HART) Signal Interface to superimpose an external HART signal on the current output. The slew rate of the current output DAC is register programmable. The device can operate with a single external power supply of +12 V to +36 V using the integrated buck/boost converters or with external power supplies when the buck/boost converters are disabled.
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open-in-new 比較替代產品
功能相同，但引腳輸出與所比較的裝置不同
DAC8760 現行 適用 4-20mA 電流迴路應用的 16 位元單通道可編程電流/電壓輸出 DAC Similar resolution product without adaptive power management in a smaller package.

技術文件

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重要文件 類型 標題 格式選項 日期
* Data sheet DAC8775 Quad-Channel, 16-Bit Programmable Current Output and Voltage Output Digital-to-Analog Converter with Adaptive Power Management datasheet PDF | HTML 2017年 2月 7日
Circuit design Circuit Replacing HART® Modem Device Competitors With the DAC8740H PDF | HTML 2026年 1月 29日
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 2025年 12月 9日
Circuit design Output Overvoltage Protection Circuit for Voltage DACs With an External Feedback Pin PDF | HTML 2025年 7月 29日
Circuit design Programmable, two-stage, high-side current source circuit (Rev. A) PDF | HTML 2024年 9月 19日
Application note A Basic Guide to the HART Protocol PDF | HTML 2023年 11月 9日
Application brief Thermal Management to Increase Density in PLC AO Modules 2018年 6月 12日

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

DAC8775EVM — DAC8775 評估模組

DAC8775 評估模組 (EVM) 是一款易於使用的平台，用於評估 DAC8775 產品的功能與性能。DAC8775 是一款 16 位元的四通道、可編程電流或電壓輸出的數位轉類比轉換器 (DAC)，並具備自適應電源管理功能。EVM 是一個完整的評估套件，包括與 Microsoft® Windows® XP 和 7/8/10 作業系統相容的 PCB、SM-USB-DIG、USB 傳輸線和評估軟體。

使用指南: PDF
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模擬型號

DAC8775 IBIS Model

SLVMBZ7.ZIP (49 KB) - IBIS Model
下載
計算工具

ANALOG-ENGINEER-CALC — 類比工程師計算機

類比工程師的計算機旨在加速類比電路設計工程師定期使用的許多重複計算。此基於 PC 的工具提供圖形介面，列出各種常見計算，從使用回饋電阻器設定運算放大器增益到選擇適當的電路設計元件以穩定類比數位轉換器 (ADC) 驅動緩衝電路。

除了作為獨立工具使用外，此計算機還與類比工程師口袋參考中描述的概念相得益彰。

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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

支援產品和硬體
啟動
模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI 是有助於評估類比電路功能的設計和模擬環境。這款全功能設計和模擬套件使用 Cadence® 的類比分析引擎。PSpice for TI 包括業界最大的模型庫之一，涵蓋我們的類比和電源產品組合，以及特定類比行為模型，且使用無需支付費用。

PSpice for TI 設計和模擬環境可讓您使用其內建函式庫來模擬複雜的混合訊號設計。在進行佈局和製造之前，建立完整的終端設備設計和解決方案原型，進而縮短上市時間並降低開發成本。 

在 PSpice for TI 設計與模擬工具中，您可以搜尋 TI (...)
要求
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 (...)
使用指南: PDF
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參考設計

TIPD216 — 四通道工業電壓和電流輸出驅動器參考設計 (經 EMC/EMI 測試)

此四通道類比輸出模組使用高度整合的 DAC8775 類比前端提供電壓和電流輸出。整合式自適應電源管理可將晶片的功耗降到最低。此外，實作外部保護電路，以抵禦 IEC61000-4 測試套件的干擾。
Design guide: PDF
電路圖: PDF
參考設計

TIPD215 — 具有自適型電源管理、功耗低於 1W 的四通道類比輸出模組參考設計

此四通道類比輸出模組使用高度整合的DAC8775數位轉類比轉換器 (DAC) 提供電壓和電流輸出。整合式自適應電源管理與LM5166降壓轉換器，即使同時以 20 mA 驅動所有四個通道，都能將參考設計的總降低至 1 W 以下。
Design guide: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
VQFN (RWF) 72 Ultra Librarian
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  • 鉛塗層/球物料
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  • 認證摘要
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