Datasheet AD7440, AD7450A (Analog Devices) - 8

AD7440/AD7450A Data Sheet ABSOLUTE MAXIMUM RATINGS
TA = 25°C, unless otherwise noted.
1.6mA IOL Table 4. Parameter Rating TO OUTPUT 1.6V
V to GND –0.3 V to +7 V
PIN C
DD
L 25pF
V to GND –0.3 V to V + 0.3 V IN+ DD V to GND –0.3 V to V + 0.3 V
200
µ
A IOH
IN– DD 03051-A-004 Digital Input Voltage to GND –0.3 V to +7 V Figure 4. Load Circuit for Digital Output Timing Specifications Digital Output Voltage to GND –0.3 V to V + 0.3 V DD V to GND –0.3 V to V + 0.3 V REF DD Input Current to Any Pin Except Supplies1 ±10 mA
ESD CAUTION
Operating Temperature Range Commercial (B Version) –40°C to +85°C Storage Temperature Range –65°C to +150°C Junction Temperature 150°C θ Thermal Impedance JA MSOP 205.9°C/W SOT-23 211.5°C/W θ Thermal Impedance JC MSOP 43.74°C/W SOT-23 91.99°C/W 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. Stresses at or above those listed under Absolute Maximum Ratings may cause permanent damage to the product. This is a stress rating only; functional operation of the product at these or any other conditions above those indicated in the operational section of this specification is not implied. Operation beyond the maximum operating conditions for extended periods may affect product reliability. Rev. D | Page 8 of 27 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY AD7440–SPECIFICATIONS AD7450A–SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TERMINOLOGY AD7440/AD7450A–TYPICAL PERFORMANCE CHARACTERISTICS CIRCUIT INFORMATION CONVERTER OPERATION ADC TRANSFER FUNCTION TYPICAL CONNECTION DIAGRAM ANALOG INPUT Analog Input Structure DRIVING DIFFERENTIAL INPUTS Differential Amplifier Op Amp Pair RF Transformer DIGITAL INPUTS REFERENCE Example 1 Example 2 SINGLE-ENDED OPERATION SERIAL INTERFACE Timing Example 1 Timing Example 2 MODES OF OPERATION NORMAL MODE POWER-DOWN MODE POWER-UP TIME POWER vs. THROUGHPUT RATE GROUNDING AND LAYOUT HINTS EVALUATING THE AD7440/AD7450A PERFORMANCE OUTLINE DIMENSIONS ORDERING GUIDE