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ADS7038-Q1

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具有 SPI、GPIO 和 CRC 的汽车类 8 通道、1MSPS、12 位模数转换器 (ADC)

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数据表

ADS7038-Q1

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产品详情

Resolution (Bits) 12 Sample rate (max) (ksps) 1000 Number of input channels 8 Interface type SPI Architecture SAR Input type Single-ended Multichannel configuration Multiplexed Rating Automotive TI functional safety category Functional Safety-Capable Reference mode Supply Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Comparator, GPIO, Oscillator, Small Size Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 1.5 Analog supply voltage (min) (V) 2.35 Analog supply voltage (max) (V) 5.5 SNR (dB) 72.9 Digital supply (min) (V) 1.65 Digital supply (max) (V) 5.5
Resolution (Bits) 12 Sample rate (max) (ksps) 1000 Number of input channels 8 Interface type SPI Architecture SAR Input type Single-ended Multichannel configuration Multiplexed Rating Automotive TI functional safety category Functional Safety-Capable Reference mode Supply Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Comparator, GPIO, Oscillator, Small Size Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 1.5 Analog supply voltage (min) (V) 2.35 Analog supply voltage (max) (V) 5.5 SNR (dB) 72.9 Digital supply (min) (V) 1.65 Digital supply (max) (V) 5.5
WQFN (RTE) 16 9 mm² (3 mm × 3 mm)
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Small package size:
    • WQFN 3 mm × 3 mm
    • Wettable flanks for visual inspection of solder joints
  • 8 channels configurable as any combination of:
    • Up to 8 analog inputs, digital inputs, or digital outputs
  • GPIOs for I/O expansion:
    • Open-drain, push-pull digital outputs
  • Analog watchdog:
    • Programmable thresholds per channel
    • Event counter for transient rejection
  • Wide operating ranges:
    • AVDD: 2.35 V to 5.5 V
    • DVDD: 1.65 V to 5.5 V
  • Enhanced-SPI digital interface:
    • High-speed, 60-MHz interface
  • CRC for read/write operation:
    • CRC on data read/write
    • CRC on power-up configuration
  • Programmable averaging filters:
    • Programmable sample size for averaging
    • Averaging with internal conversions
    • 16-bit resolution
  • Turbo comparator mode with speeds up to3.2 MSPS
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Small package size:
    • WQFN 3 mm × 3 mm
    • Wettable flanks for visual inspection of solder joints
  • 8 channels configurable as any combination of:
    • Up to 8 analog inputs, digital inputs, or digital outputs
  • GPIOs for I/O expansion:
    • Open-drain, push-pull digital outputs
  • Analog watchdog:
    • Programmable thresholds per channel
    • Event counter for transient rejection
  • Wide operating ranges:
    • AVDD: 2.35 V to 5.5 V
    • DVDD: 1.65 V to 5.5 V
  • Enhanced-SPI digital interface:
    • High-speed, 60-MHz interface
  • CRC for read/write operation:
    • CRC on data read/write
    • CRC on power-up configuration
  • Programmable averaging filters:
    • Programmable sample size for averaging
    • Averaging with internal conversions
    • 16-bit resolution
  • Turbo comparator mode with speeds up to3.2 MSPS

The ADS7038-Q1 is an easy-to-use, 8-channel, multiplexed, 12-bit, 1-MSPS, successive approximation register analog-to-digital converter (SAR ADC). The eight channels can be independently configured as either analog inputs, digital inputs, or digital outputs. The device has an internal oscillator for the ADC conversion process.

The ADS7038-Q1 communicates through an SPI-compatible interface and operates in either autonomous or single-shot conversion mode. The ADS7038-Q1 implements the analog watchdog function by event-triggered interrupts per channel using a digital window comparator with programmable high and low thresholds, hysteresis, and an event counter. The ADS7038-Q1 has a built-in cyclic redundancy check (CRC) for data read/write operations and the power-up configuration.

The ADS7038-Q1 is an easy-to-use, 8-channel, multiplexed, 12-bit, 1-MSPS, successive approximation register analog-to-digital converter (SAR ADC). The eight channels can be independently configured as either analog inputs, digital inputs, or digital outputs. The device has an internal oscillator for the ADC conversion process.

The ADS7038-Q1 communicates through an SPI-compatible interface and operates in either autonomous or single-shot conversion mode. The ADS7038-Q1 implements the analog watchdog function by event-triggered interrupts per channel using a digital window comparator with programmable high and low thresholds, hysteresis, and an event counter. The ADS7038-Q1 has a built-in cyclic redundancy check (CRC) for data read/write operations and the power-up configuration.

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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 具有 SPI 接口、GPIO 和 CRC 的 ADS7038-Q1 小型 8 通道 12 位 ADC 数据表 (Rev. A) 英语版 (Rev.A) 2021-1-13
应用简报 区域架构和 MCU I/O 扩展 PDF | HTML 英语版 PDF | HTML 2023-2-3
功能安全信息 ADS7038-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 2022-3-21
技术文章 How an automotive ADC can help designers achieve functional safety in ADAS PDF | HTML 2020-6-9

设计与开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

评估板

ADS7038Q1EVM-PDK — ADS7038-Q1 8 通道、1MSPS、12 位 ADC 评估模块性能演示套件 (PDK)

ADS7038-Q1 评估模块 (EVM) 性能演示套件 (PDK) 平台用于评估 ADS7038-Q1 逐次逼近寄存器 (SAR) 型模数转换器 (ADC) 的性能。ADS7038Q1EVM-PDK 提供电源和通信卡，以便轻松连接到具有 I/O 扩展器 ADC 的模拟、毫微功耗、8 输入通道产品。

用户指南: PDF | HTML
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评估板

BP-ADS7128 — ADS7128 8 通道 12 位 ADC BoosterPack™ 插件模块

BP-ADS7128 BoosterPack™ 插件模块是一个用于评估逐次逼近型寄存器 (SAR) 模数转换器 (ADC) ADS7128 器件和系列器件性能的平台，这些器件是具有 I/O 扩展器的模拟、毫微功耗、八输入通道器件。

BP-ADS7128 可展示 ADS7128 的各种工作模式。它可与 MSP-EXP432E401Y MCU LaunchPad™ 开发套件（单独出售）搭配使用。

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支持软件

ADS7038-C-EXAMPLE-CODE — ADS7038 example C code

Expedite your embedded design using this example C code for the ADS7038 product family
支持的产品和硬件
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。

支持的产品和硬件
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.
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封装 引脚 CAD 符号、封装和 3D 模型
WQFN (RTE) 16 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

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