Datasheet ADA4896-2, ADA4897-1, ADA4897-2 (Analog Devices) - 4

ADA4896-2/ADA4897-1/ADA4897-2 Data Sheet Parameter Test Conditions/Comments Min Typ Max Unit
POWER SUPPLY Operating Range 3 to 10 V Quiescent Current per Amplifier 2.8 3.0 3.2 mA DISABLE = −5 V 0.13 0.25 mA Power Supply Rejection Ratio (PSRR) Positive +VS = 4 V to 6 V, −VS = −5 V −96 −125 dB Negative +VS = 5 V, −VS = −4 V to −6 V −96 −121 dB DISABLE PIN (ADA4897-1/AD ) A4897-2 DISABLE Voltage Enabled >+VS − 0.5 V Disabled <+VS − 2 V Input Current Enabled DISABLE = +5 V −1.2 μA Disabled DISABLE = −5 V −40 μA Switching Speed Enabled 0.25 μs Disabled 12 μs
+5 V SUPPLY
TA = 25°C, G = +1, RL = 1 kΩ to midsupply, unless otherwise noted.
Table 4. Parameter Test Conditions/Comments Min Typ Max Unit
DYNAMIC PERFORMANCE −3 dB Bandwidth G = +1, VOUT = 0.02 V p-p 230 MHz G = +1, VOUT = 2 V p-p 30 MHz G = +2, VOUT = 0.02 V p-p 90 MHz Bandwidth for 0.1 dB Flatness G = +2, VOUT = 2 V p-p, RL = 100 Ω 7 MHz Slew Rate G = +2, VOUT = 3 V step 100 V/μs Settling Time to 0.1% G = +2, VOUT = 2 V step 45 ns Settling Time to 0.01% G = +2, VOUT = 2 V step 95 ns NOISE/HARMONIC PERFORMANCE Harmonic Distortion (SFDR) VOUT = 2 V p-p fC = 100 kHz −115 dBc fC = 1 MHz −93 dBc fC = 2 MHz −80 dBc fC = 5 MHz −61 dBc Input Voltage Noise f = 10 Hz 2.4 nV/√Hz f = 100 kHz 1 nV/√Hz Input Current Noise f = 10 Hz 11 pA/√Hz f = 100 kHz 2.8 pA/√Hz 0.1 Hz to 10 Hz Noise G = +101, RF = 1 kΩ, RG = 10 Ω 99 nV p-p DC PERFORMANCE Input Offset Voltage −500 −30 +500 μV Input Offset Voltage Drift 0.2 μV/°C Input Bias Current −17 −11 −4 μA Input Bias Current Drift 3 nA/°C Input Bias Offset Current −0.6 −0.02 +0.6 μA Open-Loop Gain VOUT = 0.5 V to 4.5 V 97 110 dB Rev. B | Page 4 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