Datasheet AD7927 (Analog Devices) - 7
| Fabricante | Analog Devices |
| Descripción | 8-Channel, 200 kSPS, 12-Bit ADC with Sequencer in 20-Lead TSSOP |
| Páginas / Página | 29 / 7 — AD7927. Data Sheet. ABSOLUTE MAXIMUM RATINGS. Table 3. Parameter Rating. … |
| Revisión | D |
| Formato / tamaño de archivo | PDF / 490 Kb |
| Idioma del documento | Inglés |
AD7927. Data Sheet. ABSOLUTE MAXIMUM RATINGS. Table 3. Parameter Rating. ESD CAUTION
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AD7927 Data Sheet ABSOLUTE MAXIMUM RATINGS
TA = 25°C, unless otherwise noted.
Table 3.
Stresses above those listed under Absolute Maximum Ratings
Parameter Rating
may cause permanent damage to the device. This is a stress AV rating only; functional operation of the device at these or any DD to AGND −0.3 V to +7 V V other conditions above those indicated in the operational DRIVE to AGND −0.3 V to AVDD + 0.3 V Analog Input Voltage to AGND −0.3 V to AV section of this specification is not implied. Exposure to absolute DD + 0.3 V Digital Input Voltage to AGND −0.3 V to +7 V maximum rating conditions for extended periods may affect Digital Output Voltage to AGND −0.3 V to AV device reliability. DD + 0.3 V REFIN to AGND −0.3 V to AVDD + 0.3 V
ESD CAUTION
Input Current to Any Pin Except Supplies1 ±10 mA Operating Temperature Range Commercial (B Version) −40°C to +85°C Automotive (W Version) −40°C to +125°C Storage Temperature Range −65°C to +150°C Junction Temperature 150°C TSSOP, Power Dissipation 450 mW θJA Thermal Impedance 143°C/W (TSSOP) θJC Thermal Impedance 45°C/W (TSSOP) Lead Temperature, Soldering Vapor Phase (60 sec) 215°C Infrared (15 sec) 220°C ESD 1.5 kV 1 Transient currents of up to 100 mA do not cause SCR latch-up. Rev. D | Page 6 of 28 Document Outline Features General Description Functional Block Diagram Product Highlights Revision History Specifications Timing Specifications Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Terminology Typical Performance Characteristics Control Register Sequencer Operation Shadow Register Circuit Information Converter Operation Analog Input ADC Transfer Function Handling Bipolar Input Signals Typical Connection Diagram Analog Input Selection Digital Inputs VDRIVE The Reference Modes of Operation Normal Mode (PM1 = PM0 = 1) Full Shutdown (PM1 = 1, PM0 = 0) Auto Shutdown (PM1 = 0, PM0 = 1) Powering Up the AD7927 Power vs. Throughput Rate Serial Interface Writing Between Conversions Microprocessor Interfacing AD7927 to TMS320C541 AD7927 to ADSP-21xx AD7927 to DSP563xx Application Hints Grounding and Layout Outline Dimensions Ordering Guide Automotive Products
AD7927 Data Sheet ABSOLUTE MAXIMUM RATINGS
TA = 25°C, unless otherwise noted.
Table 3.
Stresses above those listed under Absolute Maximum Ratings
Parameter Rating
may cause permanent damage to the device. This is a stress AV rating only; functional operation of the device at these or any DD to AGND −0.3 V to +7 V V other conditions above those indicated in the operational DRIVE to AGND −0.3 V to AVDD + 0.3 V Analog Input Voltage to AGND −0.3 V to AV section of this specification is not implied. Exposure to absolute DD + 0.3 V Digital Input Voltage to AGND −0.3 V to +7 V maximum rating conditions for extended periods may affect Digital Output Voltage to AGND −0.3 V to AV device reliability. DD + 0.3 V REFIN to AGND −0.3 V to AVDD + 0.3 V
ESD CAUTION
Input Current to Any Pin Except Supplies1 ±10 mA Operating Temperature Range Commercial (B Version) −40°C to +85°C Automotive (W Version) −40°C to +125°C Storage Temperature Range −65°C to +150°C Junction Temperature 150°C TSSOP, Power Dissipation 450 mW θJA Thermal Impedance 143°C/W (TSSOP) θJC Thermal Impedance 45°C/W (TSSOP) Lead Temperature, Soldering Vapor Phase (60 sec) 215°C Infrared (15 sec) 220°C ESD 1.5 kV 1 Transient currents of up to 100 mA do not cause SCR latch-up. Rev. D | Page 6 of 28 Document Outline Features General Description Functional Block Diagram Product Highlights Revision History Specifications Timing Specifications Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Terminology Typical Performance Characteristics Control Register Sequencer Operation Shadow Register Circuit Information Converter Operation Analog Input ADC Transfer Function Handling Bipolar Input Signals Typical Connection Diagram Analog Input Selection Digital Inputs VDRIVE The Reference Modes of Operation Normal Mode (PM1 = PM0 = 1) Full Shutdown (PM1 = 1, PM0 = 0) Auto Shutdown (PM1 = 0, PM0 = 1) Powering Up the AD7927 Power vs. Throughput Rate Serial Interface Writing Between Conversions Microprocessor Interfacing AD7927 to TMS320C541 AD7927 to ADSP-21xx AD7927 to DSP563xx Application Hints Grounding and Layout Outline Dimensions Ordering Guide Automotive Products