參數(shù)資料
型號： LM12434CIWM
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 模擬信號調(diào)理
英文描述： Sign Data Acquisition System with Serial I/O and Self-Calibration
中文描述： SPECIALTY ANALOG CIRCUIT, PDSO28
封裝： SOP-28
文件頁數(shù)： 2/80頁
文件大小： 1561K
代理商： LM12434CIWM
Table of Contents
1.0 FUNCTIONAL DIAGRAMSàààààààààààààààààààààààà3
2.0 ELECTRICAL SPECIFICATIONS àààààààààààààààààà5
2.1 Ratings ààààààààààààààààààààààààààààààààààààààà5
2.1.1 Absolute Maximum Ratings ààààààààààààààààà5
2.1.2 Operating Ratings ààààààààààààààààààààààààà5
2.2 Performance Characteristics ààààààààààààààààààààà5
2.2.1 Converter Static Characteristics ààààààààààààà5
2.2.2 Converter Dynamic Characteristics àààààààààà6
2.2.3 DC Characteristicsààààààààààààààààààààààààà8
2.2.4 Digital DC Characteristicsààààààààààààààààààà9
2.3 Digital Switching Characteristicsààààààààààààààààà10
2.3.1 Standard Interface Mode àààààààààààààààààà10
2.3.2 8051 Interface Modeàààààààààààààààààààààà11
2.3.3 TMS320 Interface Modeààààààààààààààààààà12
2.3.4 I
2
C Bus Interface ààààààààààààààààààààààààà13
2.4 Notes on Specifications àààààààààààààààààààààààà14
3.0 ELECTRICAL CHARACTERISTICSààààààààààààààà15
4.0 TYPICAL PERFORMANCE CHARACTERISTICS ààà19
5.0 PIN DESCRIPTIONS àààààààààààààààààààààààààààà23
6.0 OPERATIONAL INFORMATIONàààààààààààààààààà27
6.1 Functional Description ààààààààààààààààààààààààà27
6.2 Internal User-Accessible Registers àààààààààààààà31
6.2.1 Instruction RAMàààààààààààààààààààààààààà31
6.2.2 Configuration Register àààààààààààààààààààà38
6.2.3 Interruptsàààààààààààààààààààààààààààààààà38
6.2.4 Interrupt Enable Register àààààààààààààààààà39
6.2.5 Interrupt Status Register àààààààààààààààààà39
6.2.6 Limit Status Registeràààààààààààààààààààààà40
6.2.7 Timer ààààààààààààààààààààààààààààààààààà40
6.2.8 FIFOàààààààààààààààààààààààààààààààààààà40
6.3 Instruction Sequenceràààààààààààààààààààààààààà41
7.0 DIGITAL INTERFACE ààààààààààààààààààààààààààà43
7.1 Standard Interface Mode ààààààààààààààààààààààà43
7.1.1 Examples of Interfacing to the HPC 46XXX’s
MICROWIRE/PLUS
TM
and 68HC11’s SPI ààà50
7.2 8051 Interface Modeààààààààààààààààààààààààààà59
7.2.1 Example of Interfacing to the 8051àààààààààà62
7.3 TMS320 Interface Modeàààààààààààààààààààààààà66
7.3.1 Example of Interfacing to the TMS320C3x ààà69
7.4 I
2
C Bus Interfaceàààààààààààààààààààààààààààààà74
7.4.1 Example of Interfacing to an I
2
C Controllerààà76
8.0 ANALOG CONSIDERATIONS àààààààààààààààààààà77
8.1 Reference Voltage àààààààààààààààààààààààààààà77
8.2 Input Range àààààààààààààààààààààààààààààààààà77
8.3 Input Current ààààààààààààààààààààààààààààààààà77
8.4 Input Source Resistance ààààààààààààààààààààààà77
8.5 Input Bypass Capacitance àààààààààààààààààààààà77
8.6 Input Noise ààààààààààààààààààààààààààààààààààà77
8.7 Power Supply Consideration àààààààààààààààààààà77
8.8 PC Board Layout and Grounding Considerationàààà78
2
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