Low Noise, Low Input Bias Current, Rail-to-Rail Output, JFET Dual Operational Amplifier Data Sheet ADA4001-2 FEATURES PIN CONFIGURATION Low T V : 5 V/C typical C OS OUT A 1 8 V+ ADA4001-2 Low input bias current: 20 pA typical at V = 15 V IN A 2 7 OUT B SY TOP VIEW +IN A 3 6 IN B Low noise (Not to Scale) V 4 5 +IN B 7.7 nV/Hz typical at f = 1 kHz 1.2 V rms at 20 Hz to 20 kHz Figure 1. 8-Lead SOIC N (R Suffix) Low distortion: 0.00006% No phase reversal Rail-to-rail output Unity-gain stable APPLICATIONS Instrumentation Medical instruments Multipole filters Precision current measurement Photodiode amplifiers Sensors Audio GENERAL DESCRIPTION The ADA4001-2 is a dual channel JFET amplifier that features With fast slew rate and great stability under capacitive loads, the low input voltage noise and current noise, input bias current, ADA4001-2 is a good fit for filter applications. With low input and rail-to-rail output. bias currents and noise, it offers a wide dynamic range for photodi- ode amplifier circuits. Low noise and distortion, along with The combination of low noise and low input bias current makes high output current and excellent speed, make the ADA4001-2 this amplifier especially suitable for high impedance sensor a great choice for audio applications. amplification. With low noise and fast settling times, the ADA4001-2 provides good accuracy for medical instruments, The ADA4001-2 is specified over the 40C to +125C extended electronic measurement, and automated test equipment. Unlike industrial temperature range. many competitive amplifiers, the ADA4001-2 maintains fast The ADA4001-2 is available in an 8-lead narrow SOIC package. settling performance even with substantial capacitive loads, and, unlike many older JFET amplifiers, the ADA4001-2 does not suffer from output phase reversal when input voltages exceed the maximum common-mode voltage range. Rev. C Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 20122013 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. Technical Support www.analog.com 10375-002ADA4001-2 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Typical Performance Characteristics ..............................................5 Applications ....................................................................................... 1 Applications Information .............................................................. 10 Pin Configuration ............................................................................. 1 Total Noise Including Source Resistors ................................... 10 General Description ......................................................................... 1 I-V Conversion Applications .................................................... 10 Revision History ............................................................................... 2 Input Bias Current ...................................................................... 11 Specifications ..................................................................................... 3 Noise Considerations ................................................................. 11 Electrical Characteristics ............................................................. 3 Outline Dimensions ....................................................................... 12 Absolute Maximum Ratings ............................................................ 4 Ordering Guide .......................................................................... 12 Thermal Resistance ...................................................................... 4 ESD Caution .................................................................................. 4 REVISION HISTORY 5/13Rev. B to Rev C Changes to Photodiode Circuits Section ..................................... 10 5/12Rev. A to Rev B Changes to General Description Section ...................................... 1 Changed Input Impedance to Input Capacitance Throughout .. 3 Added Input Resistance Parameter, Table 1 .................................. 3 Change to Figure 5 Caption ............................................................ 5 2/12Rev. 0 to Rev. A Changes to Figure 27 ........................................................................ 9 2/12Revision 0: Initial Version Rev. C Page 2 of 12