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ISL12022M-R5421 数据表(PDF) 27 Page - Intersil Corporation |
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ISL12022M-R5421 数据表(HTML) 27 Page - Intersil Corporation |
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27 / 44 page  ► 24-bit Delta-Sigma Intersil Signal Path Products 2012 www.intersil.com 27 24-bit ADCs: ISL26102, ISL26104 24-bit ADCs: ISL26132, ISL26134 Industry-Leading Noise Performance Up to 4000SPS with Full Firmware Programmability Easy to Use ADC with Excellent Noise Performance at Low Cost Low Noise Highly Integrated Low Noise Highly Integrated • Best-in-Class Performance • Lowest Noise over 2.5SPS-4000SPS • Low Noise PGA with Buffer - Just 5.6nV/√Hz at 1Hz • Simultaneous 50/60 Hz Noise Rejection • 2 & 4 Ch Differential Input Multiplexer - AVDD Monitor, Onboard Temperature Sensor • Low Power - 5V Analog, 5.5V / 2.7V Digital Supplies - 50mW power dissipation, 1µA Shutdown mode - Low Side Power Switch manages Load Cell Power • SPI Compatible Serial Interface - Access to Calibration Registers • 24 / 28 Pin TSSOP Package • Extended Industrial Temp Range (-40ºC - 105ºC) • Robust ESD Rating - 8kV HBM • Drop-In Compatible with ADS1232/34 - Improved Performance with no change in circuitry • 10SPS, 80SPS Operation • Best in Class Performance – 21.6 Bits noise-free (Gain = 1) • Low Noise PGA with Buffer • Simultaneous 50/60 Hz Noise Rejection • 2 & 4 Channel, Differential-input Multiplexer • All Functions Pin-programmed • Low Power: 53mW (max), 1µA in Shutdown mode - 5V Analog, 5.5V / 2.7V Digital Supplies • Easy-to-Use SPI-compatible Serial Interface • 24 / 28 Pin TSSOP Package • Extended Industrial Temp Range (-40ºC - 105ºC) • Robust ESD Rating – 7.5kV HBM • Samples and Evaluation Board available Key Features Key Features ΔΣ ADC PGA 1, 2, 4, 8,16, 32, 64, 128 Internal Clock SDO/RDY SCLK DVDD AVDD DGND DGND XTALIN/ CLOCK VREF+ External Oscillator XTALOUT VREF- AIN1+ AIN1- AIN2+ AIN2- AIN3+ AIN3- AIN4+ AIN4- Input Multiplexer ISL26104 Only CAP CAP SDI DGND DGND CS LSPS AGND DVDD PWDN On-Chip Temp Sensor ISL26102, ISL26104 Noise Spectral Density, 80SPS, PGA Gain = 1 ISL26134 128X Gain Competitor A 128X Gain ADC PGA 1x/2x/64x/ 128x INTERNAL CLOCK SDO/RDY SCLK DVDD AVDD DGND AGND XTALIN/CLOCK VREF+ EXTERNAL OSCILLATOR XTALOUT VREF- A1/TEMP A0 AIN1+ AIN1- AIN2+ AIN2- AIN3+ AIN3- AIN4+ AIN4- ISL26134 Only CAP CAP GAIN1 GAIN0 PWDN SPEED DGND DGND ISL26132, ISL26134 ∆∑ INPUT MUX • At 10SPS, 128x Gain ISL26134 noise is 5.6nV/√Hz • Competitor A shows 10.2nV/√Hz Evalboard Available! Evalboard Available! 0.1 1 10 100 1000 0.1 1 10 100 Frequency (Hz) 0.1 1 10 100 1000 0.1 1 10 100 Frequency (Hz) 10 100 1000 10000 100000 0.1 1 10 100 Frequency (Hz) |
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