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CS5521_09 PDF预览

CS5521_09

更新时间: 2024-10-28 06:49:27
品牌 Logo 应用领域
凌云 - CIRRUS /
页数 文件大小 规格书
56页 392K
描述
16-bit or 24-bit, 2/4/8-channel ADCs with PGIA

CS5521_09 数据手册

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CS5521/22/23/24/28  
TABLE OF CONTENTS  
ANALOG CHARACTERISTICS................................................................................................ 5  
TYPICAL RMS NOISE, CS5521/23.......................................................................................... 7  
TYPICAL NOISE FREE RESOLUTION (BITS), CS5521/23 .................................................... 7  
TYPICAL RMS NOISE, CS5522/24/28..................................................................................... 8  
TYPICAL NOISE FREE RESOLUTION (BITS), CS5522/24/28 ............................................... 8  
5 V DIGITAL CHARACTERISTICS........................................................................................... 9  
3 V DIGITAL CHARACTERISTICS........................................................................................... 9  
DYNAMIC CHARACTERISTICS ............................................................................................ 10  
RECOMMENDED OPERATING CONDITIONS ..................................................................... 10  
ABSOLUTE MAXIMUM RATINGS ......................................................................................... 10  
SWITCHING CHARACTERISTICS ........................................................................................ 11  
1. GENERAL DESCRIPTION ..................................................................................................... 13  
1.1 Analog Input ..................................................................................................................... 13  
1.1.1 Instrumentation Amplifier .........................................................................................14  
1.1.2 Coarse/Fine Charge Buffers ............................................................................... 14  
1.1.3 Analog Input Span Considerations ..........................................................................15  
1.1.4 Measuring Voltages Higher than 5 V .................................................................. 15  
1.1.5 Voltage Reference .............................................................................................. 16  
1.2 Overview of ADC Register Structure and Operating Modes ............................................ 16  
1.2.1 System Initialization ............................................................................................ 18  
1.2.2 Command Register Quick Reference ............................................................... 19  
1.2.3 Command Register Descriptions ........................................................................ 20  
1.2.4 Serial Port Interface ............................................................................................ 25  
1.2.5 Reading/Writing the Offset, Gain, and Configuration Registers .......................... 26  
1.2.6 Reading/Writing the Channel-Setup Registers ................................................... 26  
1.2.6.1 Latch Outputs ...................................................................................... 28  
1.2.6.2 Channel Select Bits ............................................................................. 28  
1.2.6.3 Output Word Rate Selection ............................................................... 28  
1.2.6.4 Gain Bits .............................................................................................. 28  
1.2.6.5 Unipolar/Bipolar Bit ............................................................................. 28  
1.2.7 Configuration Register ........................................................................................ 28  
1.2.7.1 Chop Frequency Select ....................................................................... 28  
1.2.7.2 Conversion/Calibration Control Bits .................................................... 28  
1.2.7.3 Power Consumption Control Bits ........................................................ 28  
1.2.7.4 Charge Pump Disable ......................................................................... 29  
1.2.7.5 Reset System Control Bits .................................................................. 29  
1.2.7.6 Data Conversion Error Flags ............................................................... 29  
1.3 Calibration ........................................................................................................................ 31  
1.3.1 Self Calibration .................................................................................................... 31  
1.3.2 System Calibration .............................................................................................. 32  
1.3.3 Calibration Tips ................................................................................................... 34  
1.3.4 Limitations in Calibration Range ......................................................................... 34  
1.4 Performing Conversions and Reading the Data Conversion FIFO .................................. 34  
1.4.1 Conversion Protocol ............................................................................................ 35  
1.4.1.1 Single, One-Setup Conversion ............................................................ 35  
1.4.1.2 Repeated One-Setup Conversions without Wait ................................. 35  
1.4.1.3 Repeated One-Setup Conversions with Wait ...................................... 36  
1.4.1.4 Single, Multiple-Setup Conversions .................................................... 36  
1.4.1.5 Repeated Multiple-Setup Conversions without Wait ........................... 37  
1.4.1.6 Repeated Multiple-Setup Conversions with Wait ................................ 37  
1.4.2 Calibration Protocol ............................................................................................. 38  
2
DS317F8  

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