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ADS7886

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2.35V-5.25V 12 位 1MSPS 串行 ADC

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ADS7042 正在供货 具有 SPI 接口的 12 位 1MSPS 超低功耗、超小型 SAR ADC Next generation, smaller size, lower power consumption

ADS7886

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Resolution (Bits) 12 Sample rate (max) (ksps) 1000 Number of input channels 1 Interface type SPI Architecture SAR Input type Single-ended Rating Catalog Reference mode Supply Input voltage range (max) (V) 5.25 Input voltage range (min) (V) 0 Features Small Size Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 13.5 Analog supply voltage (min) (V) 2.35 Analog supply voltage (max) (V) 5.25 SNR (dB) 72.25 Digital supply (min) (V) 2.35 Digital supply (max) (V) 5.25
Resolution (Bits) 12 Sample rate (max) (ksps) 1000 Number of input channels 1 Interface type SPI Architecture SAR Input type Single-ended Rating Catalog Reference mode Supply Input voltage range (max) (V) 5.25 Input voltage range (min) (V) 0 Features Small Size Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 13.5 Analog supply voltage (min) (V) 2.35 Analog supply voltage (max) (V) 5.25 SNR (dB) 72.25 Digital supply (min) (V) 2.35 Digital supply (max) (V) 5.25
SOT-23 (DBV) 6 8.12 mm² (2.9 mm × 2.8 mm) SOT-SC70 (DCK) 6 4.2 mm² (2 mm × 2.1 mm)
  • 1-MHz Sample Rate Serial Device
  • 12-Bit Resolution
  • Zero Latency
  • 20-MHz Serial Interface
  • Supply Range: 2.35 V to 5.25 V
  • Typical Power Dissipation at 1 MSPS:
    • 3.9 mW at 3-V VDD
    • 7.5 mW at 5-V VDD
  • INL ±1.25 LSB Maximum, ±0.65 LSB (Typical)
  • DNL ±1 LSB Maximum, +0.4 / –0.65 LSB (Typical)
  • Typical AC Performance:
    72.25-dB SINAD, –84-dB THD
  • Unipolar Input Range: 0 V to VDD
  • Power Down Current: 1 µA
  • Wide Input Bandwidth: 15 MHz at 3 dB
  • 6-Pin SOT-23 and SC70 Packages
  • 1-MHz Sample Rate Serial Device
  • 12-Bit Resolution
  • Zero Latency
  • 20-MHz Serial Interface
  • Supply Range: 2.35 V to 5.25 V
  • Typical Power Dissipation at 1 MSPS:
    • 3.9 mW at 3-V VDD
    • 7.5 mW at 5-V VDD
  • INL ±1.25 LSB Maximum, ±0.65 LSB (Typical)
  • DNL ±1 LSB Maximum, +0.4 / –0.65 LSB (Typical)
  • Typical AC Performance:
    72.25-dB SINAD, –84-dB THD
  • Unipolar Input Range: 0 V to VDD
  • Power Down Current: 1 µA
  • Wide Input Bandwidth: 15 MHz at 3 dB
  • 6-Pin SOT-23 and SC70 Packages

The ADS7886 is a 12-bit, 1-MSPS analog-to-digital converter (ADC). The device includes a capacitor based SAR A/D converter with inherent sample and hold. The serial interface in each device is controlled by the CS and SCLK signals for glueless connections with microprocessors and DSPs. The input signal is sampled with the falling edge of CS, and SCLK is used for conversion and serial data output.

The device operates from a wide supply range from 2.35 V to 5.25 V. The low power consumption of the device makes it suitable for battery-powered applications. The device also includes a power down feature for power saving at lower conversion speeds.

The high level of the digital input to the device is not limited to device VDD. This means the digital input can go as high as 5.25 V when device supply is 2.35 V. This feature is useful when digital signals are coming from other circuit with different supply levels. Also this relaxes restriction on power-up sequencing.

The ADS7886 is available in 6-pin SOT-23 and SC70 packages and is specified for operation from –40°C to 125°C.

The ADS7886 is a 12-bit, 1-MSPS analog-to-digital converter (ADC). The device includes a capacitor based SAR A/D converter with inherent sample and hold. The serial interface in each device is controlled by the CS and SCLK signals for glueless connections with microprocessors and DSPs. The input signal is sampled with the falling edge of CS, and SCLK is used for conversion and serial data output.

The device operates from a wide supply range from 2.35 V to 5.25 V. The low power consumption of the device makes it suitable for battery-powered applications. The device also includes a power down feature for power saving at lower conversion speeds.

The high level of the digital input to the device is not limited to device VDD. This means the digital input can go as high as 5.25 V when device supply is 2.35 V. This feature is useful when digital signals are coming from other circuit with different supply levels. Also this relaxes restriction on power-up sequencing.

The ADS7886 is available in 6-pin SOT-23 and SC70 packages and is specified for operation from –40°C to 125°C.
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技术文档

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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 ADS7886 12-Bit, 1-MSPS, Micro-Power, Miniature SAR Analog-to-Digital Converters 数据表 (Rev. B) PDF | HTML 2016-8-31
电子书 Best of Baker's Best: Precision Data Converters -- SAR ADCs 2015-5-21
应用手册 Determining Minimum Acquisition Times for SAR ADCs, part 2 2011-3-17
应用手册 Determining Minimum Acquisition Times for SAR ADCs, part 1 (Rev. A) 2010-11-10

设计与开发

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评估板

ADS7886EVM — ADS7886 评估模块

The ADS7886EVM is a full-featured reference design, prototype, and software platform for the ADS7886ADC. The reference design feature contains essential circuitry to show case the A/D converter. It gives the ability to change the input components to use different input frequencies. As a prototype (...)

用户指南: PDF
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仿真模型

ADS7886 IBIS Model (Rev. A)

SBAC050 (14 KB) - IBIS 模型
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仿真模型

ADS7886 TINA-TI Spice Model

SLAM203.ZIP (25 KB) - TINA-TI Spice 模型
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仿真模型

ADS7886 TINA-TI Transient Reference Design

SLAM202.TSC (4446 KB) - TINA-TI 参考设计
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计算工具

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

模拟工程师计算器旨在加快模拟电路设计工程师经常运用的许多重复性计算。该基于 PC 的工具提供图形界面，其中显示各种常见计算列表，从使用反馈电阻器设置运算放大器增益到选择合适的电路设计元件，以稳定模数转换器 (ADC) 驱动器缓冲器电路。

除了可用作独立工具之外，该计算器还能很好地与模拟工程师口袋参考中所述的概念配合使用。

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设计工具

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.
支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
SOT-23 (DBV) 6 Ultra Librarian
SOT-SC70 (DCK) 6 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

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