ADS1146
- Programmable Data Rates Up to 2 kSPS
- Single-Cycle Settling for All Data Rates
- Simultaneous 50-Hz and 60-Hz Rejection at
20 SPS - Analog Multiplexer With 8 (ADS1148) and
4 (ADS1147) Independently Selectable Inputs - Programmable Gain: 1 V/V to 128 V/V
- Dual-Matched Programmable Excitation Current Sources
- Low-Drift Internal 2.048-V Reference
- Sensor Burnout Detection
- 4 or 8 General-Purpose I/Os (ADS1147 and ADS1148)
- Internal Temperature Sensor
- Power Supply and VREF Monitoring (ADS1147 and ADS1148)
- Self and System Calibration
- SPI™-Compatible Serial Interface
- Analog Supply: Unipolar (2.7 V to 5.25 V) or Bipolar (±2.5 V)
- Digital Supply: 2.7 V to 5.25 V
The ADS1146, ADS1147, and ADS1148 devices are precision, 16-bit analog-to-digital converters (ADCs) that include many integrated features to reduce system cost and component count for sensor measurement applications. The devices feature a low-noise, programmable gain amplifier (PGA), a precision delta-sigma (ΔΣ) ADC with a single-cycle settling digital filter, and an internal oscillator. The ADS1147 and ADS1148 devices also provide a built-in, low-drift voltage reference, and two matched programmable excitation current sources (IDACs).
An input multiplexer supports four differential inputs for the ADS1148, two for the ADS1147, and one for the ADS1146. In addition, the multiplexer integrates sensor burn-out detection, voltage bias for thermocouples, system monitoring, and general purpose digital I/Os (ADS1147 and ADS1148). The PGA provides selectable gains up to 128 V/V. These features provide a complete front-end solution for temperature sensor measurement applications including thermocouples, thermistors, and resistance temperature detectors (RTDs) and other small signal measurements including resistive bridge sensors. The digital filter settles in a single cycle to support fast channel cycling when using the input multiplexer and provides data rates up to 2 kSPS. For data rates of 20 SPS or less, both 50-Hz and 60-Hz interference are rejected by the filter.
技术文档
| 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 | ADS114x 16-Bit, 2-kSPS, Analog-to-Digital Converters With Programmable Gain Amplifier (PGA) for Sensor Measurement 数据表 (Rev. G) | PDF | HTML | 2016-8-11 | ||
| 应用手册 | 使用精密 ADC 的 K 型热电偶测量电路 (Rev. A) | PDF | HTML | 英语版 (Rev.A) | PDF | HTML | 2024-10-3 | |
| 应用手册 | 计算 Δ-Σ ADC 的转换延迟和系统周期时间 (Rev. A) | PDF | HTML | 英语版 (Rev.A) | PDF | HTML | 2024-3-27 | |
| 应用手册 | 热电偶测量基本指南 (Rev. A) | PDF | HTML | 英语版 (Rev.A) | PDF | HTML | 2023-4-14 | |
| 应用手册 | Δ-Σ ADC 中的数字滤波器类型 (Rev. A) | PDF | HTML | 英语版 (Rev.A) | PDF | HTML | 2023-4-13 | |
| 电子书 | Fundamentals of Precision ADC Noise Analysis (Rev. A) | 2020-6-19 | ||||
| 模拟设计期刊 | How delta-sigma ADCs work, Part 1 (Rev. A) | 2016-9-19 | ||||
| 电子书 | Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs | 2015-3-19 | ||||
| 模拟设计期刊 | ΔΣ ADC工作原理 | 英语版 | 2012-1-13 |
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）。
ADS1148EVM-PDK — 适用于 ADS1148 具有 PGA 且可进行传感器测量的 16 位 2kSPS ADC 的性能演示套件
ADS1148 评估模块 (EVM) 性能演示套件 (PDK) 是一个用于评估 ADS1148 八通道 16 位高精度 Δ-Σ (ΔΣ) 模数转换器 (ADC) 的平台。该 EVM 可轻松接受多种类型的模拟温度传感器，包括电阻式温度检测器 (RTD)、热电偶和热敏电阻。
ADS1148EVM-PDK 包括 ADS1148 EVM、精密 ADC 主板 (PAMBoard) 和随附的计算机软件，借助此软件，用户便可通过通用串行总线 (USB) 与 ADC 进行通信，并可采集数据和进行数据分析。
SBAC144 — ADS1x4x Firmware Example Code
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。
ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| TSSOP (PW) | 16 | Ultra Librarian |
订购和质量
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