| Electronic Components Datasheet Search |
|
AD7719 Datasheet(PDF) 2 Page - Analog Devices |
|
|
|||||||||||||||||||||||||||||
AD7719 Datasheet(HTML) 2 Page - Analog Devices |
|
2 / 40 page ![]() REV. 0 AD7719 –2– FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 1 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . 6 ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 TIMING CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . 7 DIGITAL INTERFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 PIN CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 PIN FUNCTION DESCRIPTIONS . . . . . . . . . . . . . . . . . . 9 TYPICAL PERFORMANCE CHARACTERISTICS . . . . 11 DUAL-CHANNEL ADC CIRCUIT INFORMATION . . . 12 Main Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Auxiliary Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Both Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 MAIN AND AUXILIARY ADC NOISE PERFORMANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 ON-CHIP REGISTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Communications Register (A3, A2, A1, A0 = 0, 0, 0, 0) . . . . . . . . . . . . . . . . . . . . 19 Status Register (A3, A2, A1, A0 = 0, 0, 0, 0; Power–On Reset = 00 Hex) . . . . . . . . . . . . . . . . . . . . . 20 Mode Register (A3, A2, A1, A0 = 0, 0, 0, 1; Power-On-Reset = 00 Hex) . . . . . . . . . . . . . . . . . . . . . 21 Operating Characteristics when Addressing the Mode and Control Registers . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Main ADC Control Register (AD0CON): (A3, A2, A1, A0 = 0, 0, 1, 0; Power-On Reset = 07 Hex) . . . . . . . . . . . . . . . . . . . . . 22 Aux ADC Control Registers (AD1CON): (A3, A2, A1, A0 = 0, 0, 1, 1; Power-On Reset = 01 Hex) . . . . . . . . . . . . . . . . . . . . . 23 Filter Register (A3, A2, A1, A0 = 0, 1, 0, 0; Power-On Reset = 45 Hex) . . . . . . . . . . . . . . . . . . . . . 24 I/O and Current Source Control Register (IOCON): (A3, A2, A1, A0 = 0, 1, 1, 1; Power-On Reset = 0000 Hex) . . . . . . . . . . . . . . . . . . . 24 Main ADC Data Result Registers (DATA0): (A3, A2, A1, A0 = 0, 1, 0, 1; Power-On Reset = 000000 Hex) . . . . . . . . . . . . . . . . . 26 Aux ADC Data Result Registers (DATA1): (A3, A2, A1, A0 = 0, 1, 1, 0; Power-On Reset = 0000 Hex) . . . . . . . . . . . . . . . . . . . 26 Main ADC Offset Calibration Coefficient Registers (OF0): (A3, A2, A1, A0 = 1, 0, 0, 0; Power-On Reset = 800000 Hex) . . . . . . . . . . . . . . . . . 26 Aux ADC Offset Calibration Coefficient Registers (OF1): (A3, A2, A1, A0 = 1, 0, 0, 1; Power-On Reset = 8000 Hex) . . . . . . . . . . . . . . . . . . . 26 Main ADC Gain Calibration Coefficient Registers (GNO): (A3, A2, A1, A0 = 1, 0, 1, 0; Power-On Reset = 5XXXX5 Hex) . . . . . . . . . . . . . . . . 25 Aux ADC Gain Calibration Coefficient Registers (GN1): (A3, A2, A1, A0 = 1, 0, 1, 1; Power-On Reset = 59XX Hex) . . . . . . . . . . . . . . . . . . . 26 ID Register (ID): (A3, A2, A1, A0 = 1, 1, 1, 1; Power-On Reset = 0X Hex) . . . . . . . . . . . . . . . . . . . . . 26 User Nonprogrammable Test Registers . . . . . . . . . . . . . . 26 CONFIGURING THE AD7719 . . . . . . . . . . . . . . . . . . . . . 27 MICROCOMPUTER/MICROPROCESSOR INTERFACING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 AD7719-to-68HC11 Interface . . . . . . . . . . . . . . . . . . . . . 28 AD7719-to-8051 Interface . . . . . . . . . . . . . . . . . . . . . . . . 28 AD7719-to-ADSP-2103/ADSP-2105 Interface . . . . . . . . 30 CIRCUIT DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . 30 Analog Input Channels . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Programmable Gain Amplifier . . . . . . . . . . . . . . . . . . . . . 32 Bipolar/Unipolar Configuration . . . . . . . . . . . . . . . . . . . . 33 Data Output Coding . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Burnout Currents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Excitation Currents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Crystal Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Reference Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Reference Detect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Reset Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Power-Down Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Idle Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 ADC Disable Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Grounding and Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 APPLICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Pressure Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Temperature Measurement . . . . . . . . . . . . . . . . . . . . . . . 37 3-Wire RTD Configurations . . . . . . . . . . . . . . . . . . . . . . 38 Smart Transmitters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 OUTLINE DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . 40 TABLE OF CONTENTS |
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |