Texas Instruments ADS1257 24-Bit Analog-to-Digital Conver ter (ADC) UPD65626GF-266-3BA
发布时间：2018/7/23
Texas Instruments ADS1257 24-Bit Analog-to-Digital Converter (ADC) is a low-noise, 30kSPS, 24-bit, delta-sigma (ΔΣ) analog-to-digital converter (ADC). This ADC comes with an integrated multiplexer, input buffer, and programmable gain amplifier (PGA) in a small 20-pin, 5mm×5mm VQFN package. The combination of integration, high conversion rate, and 24-bit resolution together in a small package makes the device ideally suited for space-constrained applications. The input multiplexer accepts either two differential or three single-ended input measurements. The sensor break circuit verifies the input connection continuity to the ADC. The selectable input buffer greatly increases the input impedance, and in many cases, eliminates the need for external buffers.
Features
Up to 23-Bits Noise-Free Resolution
Small 5mm×5mm VQFN Package
4 Analog Inputs
2 Differential or 3 Single-Ended Measurements
Excellent DC Performance
Offset Drift: 4nV/°C (Gain = 64)
Gain Drift: 0.8ppm/°C
Nonlinearity: 3ppm (Gain = 1)
Programmable Data Rates: 2.5SPS to 30kSPS
Single-Cycle Settled Conversions (≤ 1000SPS)
50Hz and 60Hz Rejection
High Impedance Input Buffer
Differential-Input PGA
Integrated Sensor Break Detection
2 General-Purpose Input/Outputs
Power Supplies
Analog: 5V
Digital: 1.8V to 3.6V
5V Tolerant SPI?-Compatible Serial Interface
Applications
Factory Automation and Process Control
Test and Measurement
Medical Equipment
Scientific Instrumentation
ADS1256EVM-PDK Performance Demonstration Kit
Texas Instruments ADS1256EVM-PDK Performance Demonstration Kit is a complete evaluation/demonstration kit, which combines the ADS1256EVM with the DSP-based MMB0 motherboard for use with a personal computer. The MMB0 motherboard allows the ADS1256EVM to connect to a computer via a USB port. The ADS1256EVM-PDK is controlled by the ADCPro? evaluation software using a plug-in. The software is designed to run on the Microsoft? Windows operating system and allows for the complete evaluation of the ADS1256 device.
Features
Easy-to-use evaluation software for Microsoft? Windows XP and Windows 7
Built-in analysis tools including scope, FFT, and histogram displays
Data collection to ASCII text files
Complete control of board settings
Easily expandable with new analysis plug in tools from Texas Instruments
