Datasheet ADA4896-2, ADA4897-1, ADA4897-2 (Analog Devices) - 7

Data Sheet ADA4896-2/ADA4897-1/ADA4897-2 Parameter Test Conditions/Comments Min Typ Max Unit
Power Supply Rejection Ratio (PSRR) Positive +VS = 2.7 V to 3.7 V, −VS = 0 V −96 −121 dB Negative +VS = 3 V, −VS = −0.3 V to +0.7 V −96 −120 dB DISABLE PIN (ADA4897-1/AD ) A4897-2 DISABLE Voltage Enabled >+VS − 0.5 V Disabled <−VS + 2 V Input Current Enabled DISABLE = +3 V −1.2 μA Disabled DISABLE = 0 V −15 μA Switching Speed Enabled 0.25 μs Disabled 12 μs Rev. B | Page 7 of 28 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ±5 V SUPPLY +5 V SUPPLY +3 V SUPPLY ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE MAXIMUM POWER DISSIPATION ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION AMPLIFIER DESCRIPTION INPUT PROTECTION DISABLE OPERATION DC ERRORS BIAS CURRENT CANCELLATION NOISE CONSIDERATIONS CAPACITANCE DRIVE APPLICATIONS INFORMATION TYPICAL PERFORMANCE VALUES LOW NOISE, GAIN SELECTABLE AMPLIFIER MEDICAL ULTRASOUND APPLICATIONS Overview of the Ultrasound System ADA4896-2/ADA4897-1/ADA4897-2 in the Ultrasound System LAYOUT CONSIDERATIONS Ground Plane Power Supply Bypassing OUTLINE DIMENSIONS ORDERING GUIDE