Datasheet AD7490 (Analog Devices) - 7

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AD7490 Data Sheet ABSOLUTE MAXIMUM RATINGS
TA = 25°C, unless otherwise noted. Stresses above those listed under Absolute Maximum Ratings
Table 3.
may cause permanent damage to the device. This is a stress
Parameter Rating
rating only; functional operation of the device at these or any other conditions above those indicated in the operational VDD to GND −0.3 V to +7 V section of this specification is not implied. Exposure to absolute VDRIVE to GND −0.3 V to VDD + 0.3 V maximum rating conditions for extended periods may affect Analog Input Voltage to GND −0.3 V to VDD + 0.3 V device reliability. Digital Input Voltage to GND −0.3 V to +7 V Digital Output Voltage to GND −0.3 V to VDD + 0.3 V REFIN to GND −0.3 V to VDD + 0.3 V
ESD CAUTION
Input Current to Any Pin Except Supplies1 ±10 mA Operating Temperature Ranges Commercial (B Version) −40°C to +85°C Storage Temperature Range −65°C to +150°C Junction Temperature 150°C LFCSP, TSSOP Package, Power Dissipation 450 mW θJA Thermal Impedance 108.2°C/W (LFCSP) 97.9°C/W (TSSOP) θJC Thermal Impedance 32.71°C/W (LFCSP) 14°C/W (TSSOP) Lead Temperature, Soldering Vapor Phase (60 sec) 215°C Infrared (15 sec) 220°C ESD 1 kV 1 Transient currents of up to 100 mA do not cause SCR latch-up. Rev. D | Page 6 of 28 Document Outline Features Functional Block Diagram General Description Product Highlights Revision History Specifications Timing Specifications Absolute Maximum Ratings ESD Caution Pin Configurations and Function Descriptions Typical Performance Characteristics Terminology Internal Register Structure Control Register Sequencer Operation Shadow Register Theory of Operation Circuit Information Converter Operation Analog Input ADC Transfer Function Handling Bipolar Input Signals Typical Connection Diagram Analog Input Channels Digital Input VDRIVE Reference Section Modes of Operation Normal Mode (PM1 = PM0 = 1) Full Shutdown (PM1 = 1, PM0 = 0) Auto Shutdown (PM1 = 0, PM0 = 1) Auto Standby (PM1 = PM0 = 0) Powering Up the AD7490 Serial Interface Power vs. Throughput Rate Microprocessor Interfacing AD7490 to TMS320C541 AD7490 to ADSP-21xx AD7490 to DSP563xx Application Hints Grounding and Layout PCB Design Guidelines for Chip Scale Package Evaluating the AD7490 Performance Outline Dimensions Ordering Guide