ADS1245 - 24 位低功耗 ADC，具有高 Z 输入缓冲器

ADS1245是TI德州仪器公司的一款精密ADC(<=10MSPS)产品，ADS1245是24 位低功耗 ADC，具有高 Z 输入缓冲器，本站介绍了ADS1245的封装应用图解、特点和优点、功能等，并给出了与ADS1245相关的TI元器件型号供参考。

ADS1245 - 24 位低功耗 ADC，具有高 Z 输入缓冲器 - 精密ADC(<=10MSPS) - 模数转换器 - 德州仪器

产品描述

The ADS1245 is a 24-bit, delta-sigma analog-to-digital converter (ADC). It offers excellent performance and very low power in an MSOP-10 package and is well suited for demanding high-resolution measurements, especially in portable and other space- and power-constrained systems.

The buffered input presents an impedance of 3G, minimizing measurement errors when using high-impedance sources. The ADS1245 is compatible with ADS1244 and offers a direct upgrade path for designs requiring higher input impedance.

A third-order delta-sigma () modulator and digital filter form the basis of the ADC. The analog modulator has a ±2.5V differential input range. The digital filter rejects both 50Hz and 60Hz signals, completely settles in one cycle, and outputs data at 15 samples per second (SPS).

A simple, two-wire serial interface provides all the necessary control. Data retrieval, self-calibration, and Sleep mode are handled with a few simple waveforms. When only single conversions are needed, the ADS1245 can be shut down (Sleep mode) while idle between measurements to dramatically reduce the overall power dissipation. Multiple ADS1245s can be connected together to create a synchronously sampling multichannel measurement system. The ADS1245 is designed to easily connect to microcontrollers, such as the MSP430.

The ADS1245 supports 2.5V to 5.25V analog supplies and 1.8V to 3.6V digital supplies. Power is typically less than 470µW in normal operation and less than 1µW during Sleep mode.

产品特性

20-Bit Effective Resolution
High-Impedance Buffered Input
±2.5V Differential Input Range
Pin-Compatible with ADS1244
0.0006% INL (typ), 0.0015% INL (max)
Simple Two-Wire Serial Interface
Simultaneous 50Hz and 60Hz Rejection
Single Conversions with Sleep Mode
Single-Cycle Settling
Self-Calibration
Well Suited for Multi-Channel Systems
Easily Connects to the MSP430
Current Consumption: 158µA
Analog Supply: 2.5V to 5.25V
Digital Supply: 1.8V to 3.6V
APPLICATIONS
- Hand-Held Instrumentation
- Portable Medical Equipment
- Industrial Process Control
- Test and Measurement Systems

All trademarks are the property of their respective owners.

下面可能是您感兴趣的TI德州仪器公司精密ADC(<=10MSPS)元器件

TI公司产品现货专家，订购TI公司产品不限最低起订量，TI芯片大陆现货即时发货，香港库存3-5天发货，海外库存7-10天发货

寻找全球TI代理商现货货源 - TI公司（德州仪器）电子元件在线订购

ADS1245 - 24 位低功耗 ADC，具有高 Z 输入 缓冲器

ADS1245 - 24 位低功耗 ADC，具有高 Z 输入缓冲器