Datasheet ADA4817-1, ADA4817-2 (Analog Devices) - 4

ADA4817-1 /ADA4817-2 Data Sheet GENERAL DESCRIPTION
The ADA4817-1 (single) and ADA4817-2 (dual) FastFET™ amplifiers With a wide supply voltage range from 5 V to 10 V and the ability are unity-gain stable, ultrahigh speed, voltage feedback amplifiers to operate on either single or dual supplies, the ADA4817-1/ with FET inputs. These amplifiers were developed with the Analog ADA4817-2 are designed to work in a variety of applications inclu- Devices, Inc., proprietary eXtra fast complementary bipolar ding active filtering and analog-to-digital converter (ADC) driving. (XFCB) process, which allows the amplifiers to achieve ultralow The ADA4817-1 is available in a 3 mm × 3 mm, 8-lead LFCSP and noise (4 nV/√Hz; 2.5 fA/√Hz) as well as very high input impedances. 8-lead SOIC, and the ADA4817-2 is available in a 4 mm × 4 mm, With 1.3 pF of input capacitance, low noise (4 nV/√Hz), low offset 16-lead LFCSP. These packages feature a low distortion pinout voltage (2 mV maximum), and 1050 MHz −3 dB bandwidth, the that improves second harmonic distortion and simplifies circuit ADA4817-1/ADA4817-2 are ideal for data acquisition front ends as board layout. They also feature an exposed pad that provides a wel as wideband transimpedance applications, such as photodiode low thermal resistance path to the printed circuit board (PCB). preamps. The EPAD enables more efficient heat transfer and increases reliability. These products are rated to work over the extended industrial temperature range (−40°C to +105°C). Rev. G | Page 4 of 31 Document Outline FEATURES APPLICATIONS CONNECTION DIAGRAMS TABLE OF CONTENTS REVISION HISTORY GENERAL DESCRIPTION SPECIFICATIONS ±5 V OPERATION 5 V OPERATION ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE MAXIMUM SAFE POWER DISSIPATION ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TEST CIRCUITS THEORY OF OPERATION CLOSED-LOOP FREQUENCY RESPONSE NONINVERTING CLOSED-LOOP FREQUENCY RESPONSE INVERTING CLOSED-LOOP FREQUENCY RESPONSE WIDEBAND OPERATION DRIVING CAPACITIVE LOADS THERMAL CONSIDERATIONS POWER-DOWN OPERATION CAPACITIVE FEEDBACK HIGHER FREQUENCY ATTENUATION LAYOUT, GROUNDING, AND BYPASSING CONSIDERATIONS SIGNAL ROUTING POWER SUPPLY BYPASSING GROUNDING EXPOSED PAD LEAKAGE CURRENTS INPUT CAPACITANCE INPUT-TO-INPUT/OUTPUT COUPLING APPLICATIONS INFORMATION LOW DISTORTION PINOUT WIDEBAND PHOTODIODE PREAMP HIGH SPEED JFET INPUT INSTRUMENTATION AMPLIFIER ACTIVE LOW-PASS FILTER (LPF) OUTLINE DIMENSIONS ORDERING GUIDE