ADS1148
- 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
设计和开发
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
支持的产品和硬件
产品
精密 ADC
ANALOG-ENGINEER-CALC — PC software analog engineer's calculator
The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)
支持的产品和硬件
产品
精密运算放大器 (Vos<1mV)
通用运算放大器
音频运算放大器
跨阻放大器
高速运算放大器 (GBW ≥ 50MHz)
功率运算放大器
视频放大器
线路驱动器
跨导放大器和激光驱动器
全差分放大器
精密 ADC
生物传感 AFE
高速 ADC (≥10MSPS)
接收器
触摸屏控制器
差分放大器
仪表放大器
音频线路接收器
模拟电流检测放大器
数字功率监控器
配备集成型电流采样电阻的模拟电流检测放大器
配备集成型电流采样电阻的数字功率监控器
芯片与晶圆服务
PSPICE-FOR-TI — 适用于 TI 设计和模拟工具的 PSpice®
借助 PSpice for TI 的设计和仿真环境及其内置的模型库,您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案,然后再进行布局和制造,可缩短产品上市时间并降低开发成本。
在 PSpice for TI 设计和仿真工具中,您可以搜索 TI (...)
TINA-TI — 基于 SPICE 的模拟仿真程序
TINA-TI 安装需要大约 500MB。直接安装,如果想卸载也很容易。我们相信您肯定会爱不释手。
TINA 是德州仪器 (TI) 专有的 DesignSoft 产品。该免费版本具有完整的功能,但不支持完整版 TINA 所提供的某些其他功能。
如需获取可用 TINA-TI 模型的完整列表,请参阅:SpiceRack - 完整列表
需要 HSpice (...)
TIDA-00110 — 用于 4 通道 RTD 输入的模拟前端参考设计
封装 | 引脚 | CAD 符号、封装和 3D 模型 |
---|---|---|
TSSOP (PW) | 28 | Ultra Librarian |
VQFN (RHB) | 32 | Ultra Librarian |
订购和质量
- RoHS
- REACH
- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/时基故障估算
- 材料成分
- 鉴定摘要
- 持续可靠性监测
- 制造厂地点
- 封装厂地点
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。