尊敬的客户:为给您持续提供一对一优质服务,即日起,元器件订单实付商品金额<300元时,该笔订单按2元/SKU加收服务费,感谢您的关注与支持!
    首页产品索引ADS1258

    ADS1258

    购买收藏
    具有快速通道扫描和自动序列发生器的 24 位 125kSPS 16 通道 Δ-Σ ADC

    制造商:TI

    中文数据手册

    产品信息

    描述 The ADS1258 is a 16-channel (multiplexed), low-noise, 24-bit, delta-sigma () analog-to-digital converter (ADC) that provides single-cycle settled data at channel scan rates from 1.8k to 23.7k samples per second (SPS) per channel. A flexible input multiplexer accepts combinations of eight differential or 16 single-ended inputs with a full-scale differential range of 5V or true bipolar range of ±2.5V when operating with a 5V reference. The fourth-order delta-sigma modulator is followed by a fifth-order sinc digital filter optimized for low-noise performance. The differential output of the multiplexer is accessible to allow signal conditioning prior to the input of the ADC. Internal system monitor registers provide supply voltage, temperature, reference voltage, gain, and offset data. An onboard PLL generates the system clock from a 32.768kHz crystal, or can be overridden by an external clock source. A buffered system clock output (15.7MHz) is provided to drive a microcontroller or additional converters. Serial digital communication is handled via an SPI™-compatible interface. A simple command word structure controls channel configuration, data rates, digital I/O, monitor functions, etc. Programmable sensor bias current sources can be used to bias sensors or verify sensor integrity. The ADS1258 operates from a unipolar +5V or bipolar ±2.5V analog supply and a digital supply compatible with interfaces ranging from 2.7V to 5.25V. The ADS1258 is available in a QFN-48 package.特性 24 Bits, No Missing Codes Fixed-Channel or Automatic Channel Scan Fixed-Channel Data Rate: 125kSPS Auto-Scan Data Rate: 23.7kSPS/Channel Single-Conversion Settled Data 16 Single-Ended or 8 Differential Inputs Unipolar (+5V) or Bipolar (±2.5V) OperationLow Noise: 2.8µVRMS at 1.8kSPS 0.0003% Integral Nonlinearity DC Stability (typical): 0.02µV/°C Offset Drift, 0.4ppm/°C Gain Drift Open-Sensor Detection Conversion Control Pin Multiplexer Output for External Signal Conditioning On-Chip Temperature, Reference, Offset, Gain, and Supply Voltage Readback 42mW Power Dissipation Standby, Sleep, and Power-Down Modes 8 General-Purpose Inputs/Outputs (GPIO) 32.768kHz Crystal Oscillator or External Clock APPLICATIONS Medical, Avionics, and Process Control Machine and System Monitoring Fast Scan Multi-Channel InstrumentationIndustrial Systems Test and Measurement SystemsSPI is a trademark of Motorola, Inc. All other trademarks are the property of their respective owners.

    应用案例更多案例

    系列产品索引查看所有产品

    AD7767AD2S99AD586ADAU1978
    ADUM4152ADAU1977AD7328AD9265
    AS0140ATADT7517ADRF6604AD7766
    ADA4610-1AD7710AD8338ADXL213
    ADF5000ADG902AD7112AD7715
    Copyright ©2012-2024 hqchip.com.All Rights Reserved 粤ICP备14022951号工商网监认证 工商网监 营业执照