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

DAC8812

現行

16 位元、雙序列輸入倍頻數位轉類比轉換器

立即訂購
產品規格表

DAC8812

現行
產品規格表 立即訂購

產品詳細資料

Resolution (Bits) 16 Number of DAC channels 2 Interface type SPI Output type Unbuffered Current INL (max) (±LSB) 1 Settling time (µs) 0.5 Reference type Ext Architecture Multiplying DAC Rating Catalog Features Reset to Mid-Scale Sample/update rate (Msps) 2 Power consumption (typ) (mW) 0.025 Operating temperature range (°C) -40 to 85
Resolution (Bits) 16 Number of DAC channels 2 Interface type SPI Output type Unbuffered Current INL (max) (±LSB) 1 Settling time (µs) 0.5 Reference type Ext Architecture Multiplying DAC Rating Catalog Features Reset to Mid-Scale Sample/update rate (Msps) 2 Power consumption (typ) (mW) 0.025 Operating temperature range (°C) -40 to 85
TSSOP (PW) 16 32 mm² (5 mm × 6.4 mm)
  • Relative Accuracy: 1 LSB Max
  • Differential Nonlinearity: 1 LSB Max
  • 2-mA Full-Scale Current ±20%,
    With VREF = ±10 V
  • 0.5-μs Settling Time
  • Midscale or Zero-Scale Reset
  • Separate 4Q Multiplying Reference Inputs
  • Reference Bandwidth: 10 MHz
  • Reference Dynamics: –105-dB THD
  • SPI-Compatible 3-Wire Interface:
    50 MHz
  • Double Buffered Registers to Enable
    Simultaneous Multichannel Update
  • Internal Power-On Reset
  • Industry-Standard Pin Configuration

All trademarks are the property of their respective owners. All trademarks are the property of their respective owners.

  • Relative Accuracy: 1 LSB Max
  • Differential Nonlinearity: 1 LSB Max
  • 2-mA Full-Scale Current ±20%,
    With VREF = ±10 V
  • 0.5-μs Settling Time
  • Midscale or Zero-Scale Reset
  • Separate 4Q Multiplying Reference Inputs
  • Reference Bandwidth: 10 MHz
  • Reference Dynamics: –105-dB THD
  • SPI-Compatible 3-Wire Interface:
    50 MHz
  • Double Buffered Registers to Enable
    Simultaneous Multichannel Update
  • Internal Power-On Reset
  • Industry-Standard Pin Configuration

All trademarks are the property of their respective owners. All trademarks are the property of their respective owners.

The DAC8812 is a dual, 16-bit, current-output digital-to-analog converter (DAC) designed to operate from a single 2.7-V to 5.5-V supply.

The applied external reference input voltage VREF determines the full-scale output current. An internal feedback resistor (RFB) provides temperature tracking for the full-scale output when combined with an external I-to-V precision amplifier.

A double-buffered, serial data interface offers high-speed, 3-wire, SPI and microcontroller compatible inputs using serial data in (SDI), clock (CLK), and a chip-select (CS). A common level-sensitive load DAC strobe (LDAC) input allows simultaneous update of all DAC outputs from previously loaded input registers. Additionally, an internal power-on reset forces the output voltage to zero at system turnon. An MSB pin allows system reset assertion (RS) to force all registers to zero code when MSB = 0, or to midscale code when MSB = 1.

For all available packages, see the orderable addendum at the end of the data sheet.


The DAC8812 is a dual, 16-bit, current-output digital-to-analog converter (DAC) designed to operate from a single 2.7-V to 5.5-V supply.

The applied external reference input voltage VREF determines the full-scale output current. An internal feedback resistor (RFB) provides temperature tracking for the full-scale output when combined with an external I-to-V precision amplifier.

A double-buffered, serial data interface offers high-speed, 3-wire, SPI and microcontroller compatible inputs using serial data in (SDI), clock (CLK), and a chip-select (CS). A common level-sensitive load DAC strobe (LDAC) input allows simultaneous update of all DAC outputs from previously loaded input registers. Additionally, an internal power-on reset forces the output voltage to zero at system turnon. An MSB pin allows system reset assertion (RS) to force all registers to zero code when MSB = 0, or to midscale code when MSB = 1.

For all available packages, see the orderable addendum at the end of the data sheet.


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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 DAC8812 Dual, Serial-Input 16-Bit Multiplying Digital-to-Analog Converter datasheet (Rev. F) PDF | HTML 2016/7/11
應用說明 Time Gain Control (Compensation) in Ultrasound Applications 2016/12/2
類比設計期刊 The IBIS model: A conduit into signal-integrity analysis, Part 1 2010/11/15
類比設計期刊 4Q 2010 Issue Analog Applications Journal 2010/11/15

設計與開發

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模擬型號

DAC8812 IBIS Model

SBAM069.ZIP (15 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

TIPD160 — 基於數位可調式 MDAC 的狀態變數濾波器參考設計

此以 MDAC 為基礎的狀態變數濾波器可針對增益、中心/截止頻率與品質因數提供高準確度的數位微調。此電路提供三個獨立的濾波器輸出：低通、帶通和高通，這些輸出可同時存取。  此電路適用於需要準確數位濾波器微調的廣泛應用，範圍涵蓋音訊、工業等領域！

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