ADS1258
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
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.
ADS中有关DAC控件使用问题?我使用的是ADS2020版本,目前我只能对三个元件参数进行扫描,每个元件的参数扫描点为300个,高于这一扫描数,ADS仿真器便会未响应。
2023-02-10
国产16通道24位高精度模数转换器SC9259(兼容TI的ADS1258)用于水下探测系统对于采用声波的发射和反射实现水下距离探测的系统,模拟信号的传播链路可以由FPGA控制输出数字信号,经ADC模数转换器转换为小模拟信号,由功率放大器放大处理,最后通过天线天线发射。接收端天线接收发射出去后遇到物体反射回来的声波,经低噪音放大器放大和滤波器滤波,由模数转换器采样转换输出给数据处理器进行信号处理。系统框图如下:要实现水下探测系统的高精度测量要求,信
2022-05-27
国产16通道24位高精度模数转换器SC9259(兼容TI的ADS1258)用于水下探测系统对于采用声波的发射和反射实现水下距离探测的系统,模拟信号的传播链路可以由FPGA控制输出数字信号,经ADC模数转换器转换为小模拟信号,由功率放大器放大处理,最后通过天线天线发射。接收端天线接收发射出去后遇到物体反射回来的声波,经低噪音放大器放大和滤波器滤波,由模数转换器采样转换输出给数据处理器进行信号处理。系统框图如下:要实现水下探测系统的高精度测量要求,信
2022-05-27
2023-07-05
2024-02-26
国产16通道24位高精度模数转换器SC9259(兼容TI的ADS1258)用于水下探测系统对于采用声波的发射和反射实现水下距离探测的系统,模拟信号的传播链路可以由FPGA控制输出数字信号,经ADC模数转换器转换为小模拟信号,由功率放大器放大处理,最后通过天线天线发射。接收端天线接收发射出去后遇到物体反射回来的声波,经低噪音放大器放大和滤波器滤波,由模数转换器采样转换输出给数据处理器进行信号处理。系统框图如下:要实现水下探测系统的高精度测量要求,信
2022-05-27
国产16通道24位高精度模数转换器SC9259(兼容TI的ADS1258)用于水下探测系统对于采用声波的发射和反射实现水下距离探测的系统,模拟信号的传播链路可以由FPGA控制输出数字信号,经ADC模数转换器转换为小模拟信号,由功率放大器放大处理,最后通过天线天线发射。接收端天线接收发射出去后遇到物体反射回来的声波,经低噪音放大器放大和滤波器滤波,由模数转换器采样转换输出给数据处理器进行信号处理。系统框图如下:要实现水下探测系统的高精度测量要求,信
2022-05-27
国产16通道24位高精度模数转换器SC9259(兼容TI的ADS1258)用于水下探测系统对于采用声波的发射和反射实现水下距离探测的系统,模拟信号的传播链路可以由FPGA控制输出数字信号,经ADC模数转换器转换为小模拟信号,由功率放大器放大处理,最后通过天线天线发射。接收端天线接收发射出去后遇到物体反射回来的声波,经低噪音放大器放大和滤波器滤波,由模数转换器采样转换输出给数据处理器进行信号处理。系统框图如下:要实现水下探测系统的高精度测量要求,信
2022-05-27