Datasheet AD7890 (Analog Devices) - 7
| 制造商 | Analog Devices |
| 描述 | LC2MOS 8-Channel, 12-Bit Serial Data Acquisition System |
| 页数 / 页 | 29 / 7 — AD7890. ABSOLUTE MAXIMUM RATINGS. Parameter Rating. ESD CAUTION |
| 修订版 | C |
| 文件格式/大小 | PDF / 395 Kb |
| 文件语言 | 英语 |
AD7890. ABSOLUTE MAXIMUM RATINGS. Parameter Rating. ESD CAUTION
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AD7890 ABSOLUTE MAXIMUM RATINGS
TA = 25°C, unless otherwise noted.
Parameter Rating
Stresses above those listed under Absolute Maximum Ratings VDD to AGND −0.3 V to +7 V may cause permanent damage to the device. This is a stress VDD to DGND −0.3 V to +7 V rating only; functional operation of the device at these or any Analog Input Voltage to AGND other conditions above those indicated in the operational AD7890-10, AD7890-4 ±17 V section of this specification is not implied. Exposure to absolute AD7890-2 −5 V, +10 V maximum rating conditions for extended periods may affect Reference Input Voltage to AGND −0.3 V to VDD + 0.3 V device reliability. Digital Input Voltage to DGND −0.3 V to VDD + 0.3 V Digital Output Voltage to DGND −0.3 V to V
ESD CAUTION
DD + 0.3 V Operating Temperature Range Commercial (A, B Versions) −40°C to +85°C Extended (S Version) −55°C to +125°C Storage Temperature Range −65°C to +150°C Junction Temperature 150°C PDIP Package, Power Dissipation 450 mW θ JA Thermal Impedance 105°C/W Lead Temperature (Soldering, 10 sec) 260°C CERDIP Package, Power Dissipation 450 mW θ JA Thermal Impedance 70°C/W Lead Temperature (Soldering, 10 sec) 300°C SOIC_W Package, Power Dissipation 450 mW θJA Thermal Impedance 75°C/W Lead Temperature, Soldering Vapor Phase (60 sec) 215°C Infrared (15 sec) 220°C Rev. C | Page 6 of 28 Document Outline FEATURES GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TERMINOLOGY CONTROL REGISTER THEORY OF OPERATION CONVERTER DETAILS CIRCUIT DESCRIPTION AD7890-10 Analog Input AD7890-4 Analog Input AD7890-2 Analog Input TRACK/HOLD AMPLIFIER REFERENCE TIMING AND CONTROL CEXT FUNCTIONING SERIAL INTERFACE SELF-CLOCKING MODE Write Operation EXTERNAL CLOCKING MODE Read Operation Write Operation SIMPLIFYING THE INTERFACE MICROPROCESSOR/MICROCONTROLLER INTERFACE AD7890 TO 8051 INTERFACE AD7890 TO 68HC11 INTERFACE AD7890 TO ADSP-2101 INTERFACE AD7890 TO DSP56000 INTERFACE AD7890 TO TMS320C25/30 INTERFACE ANTIALIASING FILTER PERFORMANCE LINEARITY NOISE DYNAMIC PERFORMANCE EFFECTIVE NUMBER OF BITS OUTLINE DIMENSIONS ORDERING GUIDE
TA = 25°C, unless otherwise noted.
Parameter Rating
Stresses above those listed under Absolute Maximum Ratings VDD to AGND −0.3 V to +7 V may cause permanent damage to the device. This is a stress VDD to DGND −0.3 V to +7 V rating only; functional operation of the device at these or any Analog Input Voltage to AGND other conditions above those indicated in the operational AD7890-10, AD7890-4 ±17 V section of this specification is not implied. Exposure to absolute AD7890-2 −5 V, +10 V maximum rating conditions for extended periods may affect Reference Input Voltage to AGND −0.3 V to VDD + 0.3 V device reliability. Digital Input Voltage to DGND −0.3 V to VDD + 0.3 V Digital Output Voltage to DGND −0.3 V to V
ESD CAUTION
DD + 0.3 V Operating Temperature Range Commercial (A, B Versions) −40°C to +85°C Extended (S Version) −55°C to +125°C Storage Temperature Range −65°C to +150°C Junction Temperature 150°C PDIP Package, Power Dissipation 450 mW θ JA Thermal Impedance 105°C/W Lead Temperature (Soldering, 10 sec) 260°C CERDIP Package, Power Dissipation 450 mW θ JA Thermal Impedance 70°C/W Lead Temperature (Soldering, 10 sec) 300°C SOIC_W Package, Power Dissipation 450 mW θJA Thermal Impedance 75°C/W Lead Temperature, Soldering Vapor Phase (60 sec) 215°C Infrared (15 sec) 220°C Rev. C | Page 6 of 28 Document Outline FEATURES GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TERMINOLOGY CONTROL REGISTER THEORY OF OPERATION CONVERTER DETAILS CIRCUIT DESCRIPTION AD7890-10 Analog Input AD7890-4 Analog Input AD7890-2 Analog Input TRACK/HOLD AMPLIFIER REFERENCE TIMING AND CONTROL CEXT FUNCTIONING SERIAL INTERFACE SELF-CLOCKING MODE Write Operation EXTERNAL CLOCKING MODE Read Operation Write Operation SIMPLIFYING THE INTERFACE MICROPROCESSOR/MICROCONTROLLER INTERFACE AD7890 TO 8051 INTERFACE AD7890 TO 68HC11 INTERFACE AD7890 TO ADSP-2101 INTERFACE AD7890 TO DSP56000 INTERFACE AD7890 TO TMS320C25/30 INTERFACE ANTIALIASING FILTER PERFORMANCE LINEARITY NOISE DYNAMIC PERFORMANCE EFFECTIVE NUMBER OF BITS OUTLINE DIMENSIONS ORDERING GUIDE