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 Catalog 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 85 Power consumption (typ) (mW) 5 Analog supply voltage (min) (V) 2.35 Analog supply voltage (max) (V) 5.5 SNR (dB) 73.1 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 Catalog 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 85 Power consumption (typ) (mW) 5 Analog supply voltage (min) (V) 2.35 Analog supply voltage (max) (V) 5.5 SNR (dB) 73.1 Digital supply (min) (V) 1.65 Digital supply (max) (V) 5.5
WQFN (RTE) 16 9 mm² (3 mm × 3 mm)
  • Small package size:
    • WQFN 3 mm × 3 mm
  • 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
    • –40°C to +85°C temperature range
  • Enhanced-SPI digital interface:
    • High-speed, 60-MHz interface
    • Achieve full throughput with >13.5-MHz SPI
  • CRC for read/write operation:
    • CRC on data read/write
    • CRC on power-up configuration
  • Programmable averaging filters
  • Root-mean-square module:
    • 16-bit true RMS output
    • Programmable RMS time window
  • Zero-crossing-detect module:
    • ZCD output corresponding to analog input
    • Built-in transient rejection and hysteresis
    • Digitally adjustable detection threshold
  • Small package size:
    • WQFN 3 mm × 3 mm
  • 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
    • –40°C to +85°C temperature range
  • Enhanced-SPI digital interface:
    • High-speed, 60-MHz interface
    • Achieve full throughput with >13.5-MHz SPI
  • CRC for read/write operation:
    • CRC on data read/write
    • CRC on power-up configuration
  • Programmable averaging filters
  • Root-mean-square module:
    • 16-bit true RMS output
    • Programmable RMS time window
  • Zero-crossing-detect module:
    • ZCD output corresponding to analog input
    • Built-in transient rejection and hysteresis
    • Digitally adjustable detection threshold

The ADS7028 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 ADS7028 communicates through an SPI-compatible interface and operates in either autonomous or single-shot conversion mode. The ADS7028 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 ADS7028 has a built-in cyclic redundancy check (CRC) for data read/write operations and the power-up configuration. The ADS7028 features a root-mean-square (RMS) module that computes a 16-bit true RMS result for any analog input channel. The integrated zero-crossing-detect (ZCD) module allows for transient rejection and hysteresis near the configurable threshold crossings.

The ADS7028 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 ADS7028 communicates through an SPI-compatible interface and operates in either autonomous or single-shot conversion mode. The ADS7028 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 ADS7028 has a built-in cyclic redundancy check (CRC) for data read/write operations and the power-up configuration. The ADS7028 features a root-mean-square (RMS) module that computes a 16-bit true RMS result for any analog input channel. The integrated zero-crossing-detect (ZCD) module allows for transient rejection and hysteresis near the configurable threshold crossings.

下载 观看带字幕的视频 视频

您可能感兴趣的相似产品

open-in-new 比较替代产品
功能与比较器件相同且具有相同引脚。
ADS7128 正在供货 具有 I2C 接口、GPIO、CRC 和 RMS 模块的小型 8 通道 12 位模数转换器 (ADC) Smaller sample rate (140kSPS), I2C interface
TLA2518 正在供货 具有 SPI 接口和 GPIO 的小型 8 通道、12 位模数转换器 (ADC) Reduced performance; typical specifications only

技术文档

未找到结果。请清除搜索并重试。
查看全部 6
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 ADS7028 Small, 8-Channel, 12-Bit ADC with SPI Interface, GPIOs, and CRC 数据表 (Rev. A) PDF | HTML 2020-4-30
应用手册 一款基于浏览器的简单 CRC 计算器 PDF | HTML PDF | HTML 2026-3-16
应用简报 ADS7x28 真均方根模块 PDF | HTML 英语版 PDF | HTML 2023-2-7
应用简报 Resolution-Boosting ADS7138 Using Programmable Averaging Filter 2019-12-1
用户指南 BP-ADS7128 BoosterPack™ Plug-In Module User's Guide 2019-5-21
应用简报 Zero-Crossing Detection with False Trigger Avoidance 2019-1-9

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
支持的产品和硬件
有库存
限制:
??asset.out-of-stock-ti_zh_CN??
无货
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。

支持的产品和硬件
有库存
限制:
??asset.out-of-stock-ti_zh_CN??
无货
支持软件

SBAC284 — ADS7128 C Header File

支持的产品和硬件
仿真模型

ADS7028 IBIS Model

SBAM438.ZIP (71 KB) - IBIS 模型
支持的产品和硬件
仿真模型

TLA2528 TINA-TI Reference Design

SBAM432.TSC (272 KB) - TINA-TI 参考设计
支持的产品和硬件
仿真模型

TLA2528 TINA-TI Spice Model

SBAM431.ZIP (11 KB) - TINA-TI Spice 模型
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
计算工具

SBAR008 — ADS7xx8 CRC Calculator

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.
支持的产品和硬件
参考设计

TIDA-00420 — 基于 ADC、数字隔离、宽输入、16 通道、交流/直流二进制输入参考设计

此参考设计展示了一种经过成本优化、基于可扩展 ADC 且具有增强型隔离功能的交流/直流二进制输入模块 (BIM) 架构。10 位或 12 位 SAR ADC 的 16 个通道用于感应多个二进制输入。运算放大器除了使每通道成本保持较低之外,还为每个输入提供了出色的信号调节。数字隔离器(基础型或增强型)用于隔离主机 MCU 或处理器。支持对温度、湿度和磁场的测量以用于诊断。具有可配置输出的增强型隔离直流/直流电源可为二进制模块提供所需的电源。

支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
WQFN (RTE) 16 Ultra Librarian

订购和质量

推荐产品可能包含与 TI 此产品相关的参数、评估模块或参考设计。

支持和培训

可获得 TI 工程师技术支持的 TI E2E™ 论坛

所有内容均由 TI 和社区贡献者按“原样”提供,并不构成 TI 规范。请参阅使用条款

如果您对质量、包装或订购 TI 产品有疑问,请参阅 TI 支持。​​​​​​​​​​​​​​

视频