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ADS7869

現行

12 通道 7 路取樣類比電機控制前端，具有 3 個 1MSPS 12 位元 ADC

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產品規格表

ADS7869

現行
產品規格表 立即訂購

產品詳細資料

Resolution (Bits) 12 Sample rate (max) (ksps) 1000 Number of input channels 12 Interface type Parallel, SPI Architecture SAR Input type Differential Multichannel configuration Simultaneous Sampling Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 2.5 Input voltage range (min) (V) 0 Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 250 Analog supply voltage (min) (V) 4.5 Analog supply voltage (max) (V) 5.5 SNR (dB) 71 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.5
Resolution (Bits) 12 Sample rate (max) (ksps) 1000 Number of input channels 12 Interface type Parallel, SPI Architecture SAR Input type Differential Multichannel configuration Simultaneous Sampling Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 2.5 Input voltage range (min) (V) 0 Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 250 Analog supply voltage (min) (V) 4.5 Analog supply voltage (max) (V) 5.5 SNR (dB) 71 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.5
TQFP (PZT) 100 256 mm² 16 x 16
  • Seven Simultaneously-Sampling Sample-and-Hold (S/H) Capacitors
  • Fully Differential Inputs
  • Flexible Digital Interface with Four Modes
    • One Mode 100% Software-Compatible to VECANA01
    • SPI and Two Parallel Modes
  • Two Up-Down Counter Modules On-Chip
  • 12-Bit System Gain Adjustment for Every Channel
  • 12-Bit Accurate System Offset Adjustment for Every Channel
  • APPLICATIONS
    • Motor Control
  • Seven Simultaneously-Sampling Sample-and-Hold (S/H) Capacitors
  • Fully Differential Inputs
  • Flexible Digital Interface with Four Modes
    • One Mode 100% Software-Compatible to VECANA01
    • SPI and Two Parallel Modes
  • Two Up-Down Counter Modules On-Chip
  • 12-Bit System Gain Adjustment for Every Channel
  • 12-Bit Accurate System Offset Adjustment for Every Channel
  • APPLICATIONS
    • Motor Control

The ADS7869 is a motor-control front-end that includes three analog-to-digital converters (ADCs) with a total of seven sample-and-hold capacitors and 12 fully differential input channels. There are four sign comparators connected to four input channels. There are also three additional fully differential inputs; each input is connected to a window comparator and a sign comparator.

In addition, the ADS7869 also offers a very flexible digital interface with a parallel port that can be configured to different standards. Furthermore, a serial peripheral interface (SPI) and a specialized serial interface with three data lines (VECANA01 mode) are provided. This allows the ADS7869 to interface with most digital signal processors (DSPs) or microcontrollers. The chip is specialized for motor-control applications. For the position sensor analysis, two up-down counters are added on the silicon. This feature ensures that the analog input of the encoder is held at the same point of time as the counter value.

The ADS7869 is a motor-control front-end that includes three analog-to-digital converters (ADCs) with a total of seven sample-and-hold capacitors and 12 fully differential input channels. There are four sign comparators connected to four input channels. There are also three additional fully differential inputs; each input is connected to a window comparator and a sign comparator.

In addition, the ADS7869 also offers a very flexible digital interface with a parallel port that can be configured to different standards. Furthermore, a serial peripheral interface (SPI) and a specialized serial interface with three data lines (VECANA01 mode) are provided. This allows the ADS7869 to interface with most digital signal processors (DSPs) or microcontrollers. The chip is specialized for motor-control applications. For the position sensor analysis, two up-down counters are added on the silicon. This feature ensures that the analog input of the encoder is held at the same point of time as the counter value.
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重要文件 類型 標題 格式選項 日期
* Data sheet Analog Motor Control Front-End with Simultaneous Sampling on Seven datasheet (Rev. E) 2006年 7月 25日
E-book Best of Baker's Best: Precision Data Converters -- SAR ADCs 2015年 5月 21日
Application note Determining Minimum Acquisition Times for SAR ADCs, part 2 2011年 3月 17日
Application note Determining Minimum Acquisition Times for SAR ADCs, part 1 (Rev. A) 2010年 11月 10日
Application note Using the ADS7869 Reference Design Evaluation Module 2005年 10月 26日

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ADS7869 Gerber files

SLAC113.ZIP (151 KB)
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模擬型號

ADS7869 IBIS Model

SBAM119.ZIP (78 KB) - IBIS Model
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計算工具

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

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)

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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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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 (...)
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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 (...)
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