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ADS7861

現行

雙路 500kHz 12 位元 2+2 通道同步取樣類比轉數位轉換器

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ADS7861

現行
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產品詳細資料

Resolution (Bits) 12 Sample rate (max) (ksps) 500 Number of input channels 4 Interface type SPI Architecture SAR Input type Differential Multichannel configuration Simultaneous Sampling Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 5.25 Input voltage range (min) (V) 0 Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 25 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 Digital supply (min) (V) 4.75 Digital supply (max) (V) 5.25
Resolution (Bits) 12 Sample rate (max) (ksps) 500 Number of input channels 4 Interface type SPI Architecture SAR Input type Differential Multichannel configuration Simultaneous Sampling Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 5.25 Input voltage range (min) (V) 0 Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 25 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 Digital supply (min) (V) 4.75 Digital supply (max) (V) 5.25
SSOP (DBQ) 24 51.9 mm² (8.65 mm × 6 mm) VQFN (RHB) 32 25 mm² (5 mm × 5 mm)
  • 4 INPUT CHANNELS
  • FULLY DIFFERENTIAL INPUTS
  • 2µs TOTAL THROUGHPUT PER CHANNEL
  • NO MISSING CODES
  • 1MHz EFFECTIVE SAMPLING RATE
  • LOW POWER: 40mW
  • SSI SERIAL INTERFACE
  • OPERATING TEMPERATURE RANGE: 40°C to +125°C
  • APPLICATIONS
    • MOTOR CONTROL
    • MULTI-AXIS POSITIONING SYSTEMS
    • 3-PHASE POWER CONTROL

All trademarks are the property of their respective owners.
  • 4 INPUT CHANNELS
  • FULLY DIFFERENTIAL INPUTS
  • 2µs TOTAL THROUGHPUT PER CHANNEL
  • NO MISSING CODES
  • 1MHz EFFECTIVE SAMPLING RATE
  • LOW POWER: 40mW
  • SSI SERIAL INTERFACE
  • OPERATING TEMPERATURE RANGE: 40°C to +125°C
  • APPLICATIONS
    • MOTOR CONTROL
    • MULTI-AXIS POSITIONING SYSTEMS
    • 3-PHASE POWER CONTROL

All trademarks are the property of their respective owners.

The ADS7861 is a dual, 12-bit, 500kHz, Analog-to-Digital (A/D) converter with four fully differential input channels grouped into two pairs for high speed, simultaneous signal acquisition. Inputs to the sample-and-hold amplifiers are fully differential and are maintained differential to the input of the A/D converter. This provides excellent common-mode rejection of 80dB at 50kHz which is important in high noise environments.

The ADS7861 offers a high-speed, dual serial interface and control inputs to minimize software overhead. The output data for each channel is available as a 12-bit word. The ADS7861 is offered in both an SSOP-24 and a QFN-32 package and is fully specified over the -40°C to +125°C operating range.

The ADS7861 is a dual, 12-bit, 500kHz, Analog-to-Digital (A/D) converter with four fully differential input channels grouped into two pairs for high speed, simultaneous signal acquisition. Inputs to the sample-and-hold amplifiers are fully differential and are maintained differential to the input of the A/D converter. This provides excellent common-mode rejection of 80dB at 50kHz which is important in high noise environments.

The ADS7861 offers a high-speed, dual serial interface and control inputs to minimize software overhead. The output data for each channel is available as a 12-bit word. The ADS7861 is offered in both an SSOP-24 and a QFN-32 package and is fully specified over the -40°C to +125°C operating range.
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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 Dual, 500kSPS,12-Bit, 2+2 Channel Simultaneous Sampling Analog/Digital Converter datasheet (Rev. D) 2007/8/14
電子書 Best of Baker's Best: Precision Data Converters -- SAR ADCs 2015/5/21
應用說明 Using a SAR A/D Converter for Current Measurement in Motor Control Applications (Rev. A) 2015/5/18
應用說明 Determining Minimum Acquisition Times for SAR ADCs, part 2 2011/3/17
應用說明 Determining Minimum Acquisition Times for SAR ADCs, part 1 (Rev. A) 2010/11/10
使用指南 5-6 K Interface Board User's Guide (Rev. C) 2009/3/20
應用說明 Interfacing the ADS786x to TMS470 Processors 2006/7/10
應用說明 Interfacing the ADS786x to the MSP430F2013 2006/6/15

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開發板

5-6KINTERFACE — 5-6K 介面評估模組

介面板由兩個訊號調節點，兩個序列 EVM 點和一個平行 EVM 點組成。無論介面類型為何，與 5-6K 介面電路板相容的所有 EVM 都具有標準類比介面和標準電源連接器。三個位置螺絲端子 J1 和 J2 以及兩個位置螺絲端子 J6，J8，J9 和 J11 提供對所有點位的通用電源匯流排的存取權

5-6K 介面板旨在為資料轉換器客戶提供最大靈活性，以評估德州儀器 (TI) 的資料擷取產品。介面板根據 TMS320 跨平台子卡規範 (SPRA711) 中規定的指南維護與 TMS320 系列數位訊號處理器 (DSP) 相容的介面

EVM 是一種電路板，可讓設計人員將電路板與 TI DSK (...)

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開發板

ADS8361EVM — ADS8361 評估模組

The ADS8361EVM uses a circuit board designated ADS78-8361EVM. This EVM board will accept either the ADS7861 (12bit) or the ADS8361 (16bit) ADC. The ADS7861 operates from 5 volts to supply AVdd & DVdd, while the ADS8361 operates from 2.7V to 3.6V to supply AVdd & DVdd. The evaluation board has a (...)

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計算工具

ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

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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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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SSOP (DBQ) 24 Ultra Librarian
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