ADS1120-Q1
- AEC-Q100 qualified for automotive applications
- Temperature grade 1: –40°C to +125°C, TA
- Functional Safety-Capable
- Wide supply range: 2.3 V to 5.5 V
- Programmable gain: 1 V/V to 128 V/V
- Programmable data rates: 5 SPS to 2 kSPS
- 16-bit, noise-free resolution at 20 SPS
- Simultaneous 50-Hz and 60-Hz rejection at
20 SPS with single-cycle settling digital filter - Two differential or four single-ended inputs
- Dual-matched programmable current sources:
50 µA to 1.5 mA - Internal 2.048-V reference: 5 ppm/°C (typ) drift
- Internal 2% accurate oscillator
- Internal temperature sensor:
0.5°C (typ) accuracy - SPI-compatible interface (mode 1)
The ADS1120-Q1 is a precision, 16-bit, analog-to-digital converter (ADC) that offers many integrated features to reduce system cost and component count in applications measuring small sensor signals. The device features two differential or four single-ended inputs through a flexible input multiplexer (MUX), a low-noise, programmable gain amplifier (PGA), two programmable excitation current sources, a voltage reference, an oscillator, a low-side switch, and a precision temperature sensor.
The device can perform conversions at data rates up to 2000 samples-per-second (SPS) with single-cycle settling. At 20 SPS, the digital filter offers simultaneous 50-Hz and 60-Hz rejection for noisy industrial applications. The internal PGA offers gains up to 128 V/V. This PGA makes the ADS1120-Q1 ideally-suited for applications measuring small sensor signals, such as resistance temperature detectors (RTDs), thermocouples, thermistors, and bridge sensors. The device supports measurements of pseudo- or fully-differential signals when using the PGA. Alternatively, the device can be configured to bypass the internal PGA while still providing high input impedance and gains up to 4 V/V, allowing for single-ended measurements.
Power consumption is as low as 120 µA when operating in duty-cycle mode with the PGA disabled. Communication to the device is established through a mode 1 SPI-compatible interface. The ADS1120-Q1 is offered in a TSSOP-16 package and is specified over a temperature range of –40°C to +125°C.
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 | ADS1120-Q1 Automotive, 4-Channel, 2-kSPS, Low-Power, 16-Bit ADC With Integrated PGA and Reference 数据表 (Rev. B) | PDF | HTML | 2020-5-15 | ||
| 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 | 电桥测量基本指南 (Rev. A) | PDF | HTML | 英语版 (Rev.A) | PDF | HTML | 2024-3-8 | |
| 应用手册 | 使用 ADS1148 和 ADS1248 系列器件进行 RTD 比例测量和滤 波 (Rev. A) | PDF | HTML | 英语版 (Rev.A) | PDF | HTML | 2023-4-13 | |
| 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 | ||||
| 功能安全信息 | ADS1120-Q1 Functional Safety FIT Rate, FMD and Pin FMA | PDF | HTML | 2020-4-24 | |||
| 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）。
ADS1120EVM — ADS1120 评估模块
ADS1120 评估模块 (EVM) 是一个适用于 ADS1120 的评估系统，后者是一款 16 位多通道 Δ-Σ 模数转换器 (ADC)。该 EVM 使用 ADS1120 及最简单的电路来演示原型设计和器件评估功能。可通过 ADS1120EVM 连接器上的各种连接访问 ADS1120 的引脚。该 EVM 还包含一个用于个人计算机的 MSP430。该 EVM 支持通过 USB 端口连接到计算机。ADS1120EVM 由 ADCPro™ 评估软件通过插件进行控制。该软件为在 Microsoft® Windows™ 操作系统中运行而设计，可实现对 ADS1120 器件的完整评估。
ADS1220-C-EXAMPLE-CODE — ADS1220 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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