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

DAC7811

現行

具有 0.2us 安定時間的 12 位元單通道序列輸入加乘 DAC

立即訂購
產品規格表

DAC7811

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 Unbuffered Current INL (max) (±LSB) 1 Settling time (µs) 0.2 Reference type Ext Architecture Multiplying DAC Rating Catalog Features SDO Sample/update rate (Msps) 5 Power consumption (typ) (mW) 0.025 Operating temperature range (°C) -40 to 125
Resolution (Bits) 12 Number of DAC channels 1 Interface type SPI Output type Unbuffered Current INL (max) (±LSB) 1 Settling time (µs) 0.2 Reference type Ext Architecture Multiplying DAC Rating Catalog Features SDO Sample/update rate (Msps) 5 Power consumption (typ) (mW) 0.025 Operating temperature range (°C) -40 to 125
VSSOP (DGS) 10 14.7 mm² (3 mm × 4.9 mm)
  • 2.7-V to 5.5-V Supply Operation
  • 50-MHz Serial Interface
  • 10-MHz Multiplying Bandwidth
  • ±15-V Reference Input
  • Low Glitch Energy: 5 nV-s
  • Extended Temperature Range:
    –40°C to +125°C
  • 10-Pin VSSOP Package
  • 12-Bit Monotonic
  • 4-Quadrant Multiplication
  • Power-On Reset With Brownout Detection
  • Daisy-Chain Mode
  • Readback Function
  • Industry-Standard Pin Configuration
  • 2.7-V to 5.5-V Supply Operation
  • 50-MHz Serial Interface
  • 10-MHz Multiplying Bandwidth
  • ±15-V Reference Input
  • Low Glitch Energy: 5 nV-s
  • Extended Temperature Range:
    –40°C to +125°C
  • 10-Pin VSSOP Package
  • 12-Bit Monotonic
  • 4-Quadrant Multiplication
  • Power-On Reset With Brownout Detection
  • Daisy-Chain Mode
  • Readback Function
  • Industry-Standard Pin Configuration

The DAC7811 is a CMOS, 12-bit, current output digital-to-analog converter (DAC). This device operates from a 2.7-V to 5.5-V power supply, making it suitable for battery-powered and many other applications.

This DAC uses a double-buffered 3-wire serial interface that is compatible with SPI, QSPI™, MICROWIRE, and most DSP interface standards. In addition, a serial data out pin (SDO) allows for daisy-chaining when multiple devices are used. Data readback allows the user to read the contents of the DAC register via the SDO pin. On power-up, the internal shift register and latches are filled with zeroes and the DAC outputs are at zero scale.

The DAC7811 offers excellent 4-quadrant multiplication characteristics, with large signal multiplying bandwidth of 10 MHz. The applied external reference input voltage (VREF) determines the full-scale output current. An integrated feedback resistor (RFB) provides temperature tracking and full-scale voltage output when combined with an external current-to-voltage precision amplifier.

The DAC7811 is available in a 10-lead VSSOP package.

The DAC7811 is a CMOS, 12-bit, current output digital-to-analog converter (DAC). This device operates from a 2.7-V to 5.5-V power supply, making it suitable for battery-powered and many other applications.

This DAC uses a double-buffered 3-wire serial interface that is compatible with SPI, QSPI™, MICROWIRE, and most DSP interface standards. In addition, a serial data out pin (SDO) allows for daisy-chaining when multiple devices are used. Data readback allows the user to read the contents of the DAC register via the SDO pin. On power-up, the internal shift register and latches are filled with zeroes and the DAC outputs are at zero scale.

The DAC7811 offers excellent 4-quadrant multiplication characteristics, with large signal multiplying bandwidth of 10 MHz. The applied external reference input voltage (VREF) determines the full-scale output current. An integrated feedback resistor (RFB) provides temperature tracking and full-scale voltage output when combined with an external current-to-voltage precision amplifier.

The DAC7811 is available in a 10-lead VSSOP package.
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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 DAC7811 12-Bit, Serial Input, Multiplying Digital-to-Analog Converter datasheet (Rev. E) PDF | HTML 2018/3/8
應用說明 Time Gain Control (Compensation) in Ultrasound Applications 2016/12/2

設計與開發

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開發板

DAC7811EVM — DAC7811 評估模組

The EVM features the DAC7811 digital-to-analog converter. This EVM is designed around standardized TI modular specifications. This simple modular form factor allows direct evaluation of the DACs performance and operating characteristics. Using the 5-6KINTERFACE board, the DAC7811EVM can be (...)

使用指南: PDF
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DXP — DXP EVM GUI

DAC 操作器程序 (DXP) 是一款德州儀器的軟體工具，無需昂貴的模式產生器或編寫複雜軟體，即可評估 DAC。搭配德州儀器 DAC EVM 和模組化主機板使用時，可為 DAC 產生簡單易用的數位訊號，以產生用於量測和評估用途的類比輸出。

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模擬型號

DAC7811 PSpice Transient Model

SBAM488.ZIP (8228 KB) - PSpice 模型
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模擬型號

Discrete Impedance Spectroscopy TINA-TI Reference Design (Single-Ended)

SBOMBM1 (1083 KB) - TINA-TI 參考設計
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模擬型號

Impedance Spectroscopy TINA-TI Reference Design (Differential)

SBOMBM0 (94 KB) - TINA-TI 參考設計
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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

TIPD157 — 單電源供電、單極乘法 DAC 參考設計

此倍頻 DAC (MDAC) 參考設計可輸出 0V 至 2.5V 的單極電壓。此設計不需要雙供應器來實現單極正輸出電壓。此設計將偏壓電壓套用至輸出跨阻抗級，省去對負電源軌的需求。

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參考設計

TIPD159 — 電壓模式倍頻 DAC 參考設計

此倍頻 DAC (MDAC) 電路可產生 0V 至 2.5V 的單極電壓輸出。此設計與一般 MDAC 電路不同，不需要雙供應器來實現單極正輸出電壓。此設計使用「反向」MDAC 組成二進位加權電壓分壓器，免去對負軌的需求。

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VSSOP (DGS) 10 Ultra Librarian
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