Datasheet AD7940 (Analog Devices) - 7

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AD7940 ABSOLUTE MAXIMUM RATINGS
TA = 25°C, unless otherwise noted.
Table 4.
Stresses above those listed under Absolute Maximum Ratings
Parameter Rating
may cause permanent damage to the device. This is a stress V to GND −0.3 V to +7 V rating only; functional operation of the device at these or any DD other conditions above those listed in the operational sections Analog Input Voltage to GND −0.3 V to V + 0.3 V DD of this specification is not implied. Exposure to absolute Digital Input Voltage to GND −0.3 V to +7 V maximum rating conditions for extended periods may affect Digital Output Voltage to GND −0.3 V to V + 0.3 V DD device reliability. Input Current to Any Pin Except Supplies1 ±10 mA Operating Temperature Range Commercial (B Version) −40°C to +85°C
ESD CAUTION
Storage Temperature Range −65°C to +150°C Junction Temperature 150°C SOT-23 Package, Power Dissipation 450 mW θ Thermal Impedance 229.6°C/W JA θ Thermal Impedance 91.99°C/W JC MSOP Package, Power Dissipation 450 mW θ Thermal Impedance 205.9°C/W JA θ Thermal Impedance 43.74°C/W JC Lead Temperature, Soldering Vapor Phase (60 secs) 215°C Infared (15 secs) 220°C ESD 4 kV 1 Transient currents of up to 100 mA wil not cause SCR latch-up. Rev. A | Page 6 of 20 Document Outline Table of Contents Specifications1F Timing Specifications Absolute Maximum Ratings ESD Caution Pin Configurations and Function Descriptions Terminology Typical Performance Characteristics Circuit Information Converter Operation Analog Input ADC Transfer Function Typical Connection Diagram Digital Inputs Modes of Operation Normal Mode Power-Down Mode Power vs. Throughput Rate Serial Interface Microprocessor Interfacing AD7940 to TMS320C541 AD7940 to ADSP-218x AD7940 to DSP563xx Application Hints Grounding and Layout Evaluating the AD7940 Performance Outline Dimensions Ordering Guide