0.4 V/C Offset Drift, 105 MHz Low Power, Low Noise, Rail-to-Rail Amplifier Enhanced Product ADA4805-2-EP FEATURES TYPICAL APPLICATIONS CIRCUIT +7.5V Low input offset voltage: 125 V (maximum) 5V REF ADA4805-2-EP Low input offset voltage drift ADR435 VDD 0.4 V/C (typical) C4 C2 C3 100nF 10F 0.1F 2.7 V/C (maximum) Ultralow supply current: 500 A per amplifier +7.5V Fully specified at V = 3 V, 5 V, 5 V S 0V TO ADA4805-2-EP High speed performance V REF VDD REF IN+ 3 dB bandwidth: 105 MHz R3 20 AD7980 Slew rate: 160 V/s IN GND Settling time to 0.1%: 35 ns C1 2.7nF Rail-to-rail outputs Input common-mode range: V 0.1 V to +V 1 V S S Figure 1. Driving the AD7980 with the ADA4805-2-EP Low noise: 5.9 nV/Hz at 100 kHz 0.6 pA/Hz at 100 kHz The Analog Devices, Inc., proprietary extra fast complementary Low distortion: 102 dBc/126 dBc HD2/HD3 at 100 kHz bipolar (XFCB) process allows both low voltage and low current Low input bias current: 470 nA (typical) noise (5.9 nV/Hz, 0.6 pA/Hz). The ADA4805-2-EP operates Small packaging over a wide range of supply voltages from 1.5 V to 5 V, as well as 8-lead MSOP single 3 V and 5 V supplies, making it ideal for high speed, low ENHANCED PRODUCT FEATURES power instruments. Supports defense and aerospace applications (AQEC standard) The ADA4805-2-EP is available in an 8-lead MSOP package and is Extended industrial temperature range (55C to +125C) rated to work over the extended industrial temperature range of Controlled manufacturing baseline 55C to +125C. Additional application and technical infor- 1 assembly/test site mation can be found in the ADA4805-1/ADA4805-2 data sheet. 1 fabrication site 0 INPUT FREQUENCY = 10kHz Enhanced product change notification SNR = 89.4dB 20 THD = 104dB Qualification data available upon request SINAD = 89.3dB 40 APPLICATIONS 60 High resolution, high precision analog-to-digital converter (ADC) drivers 80 Battery-powered instrumentation 100 Micropower active filters 120 Portable point of sales terminals Active radio frequency identification (RFID) readers 140 Photomultipliers 160 ADC reference buffers 180 0 10 20 30 40 50 60 70 80 GENERAL DESCRIPTION FREQUENCY (kHz) The ADA4805-2-EP is a high speed voltage feedback, rail-to-rail Figure 2. FFT Plot for the Circuit Configuration in Figure 1 output amplifier with an exceptionally low quiescent current of Table 1. Complementary ADCs to the ADA4805-2-EP 500 A, making it ideal for low power, high resolution data Throughput Resolution SNR conversion systems. Despite being low power, this amplifier Product ADC Power (mW) (MSPS) (Bits) (dB) provides excellent overall performance. It offers a high bandwidth AD7982 7.0 1 18 98 of 105 MHz at a gain of +1, a high slew rate of 160 V/s, and a AD7984 10.5 1.33 18 98.5 low input offset voltage of 125 V (maximum). AD7980 4.0 1 16 91 AD7685 10 0.25 16 88 Rev. 0 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 2016 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. 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AMPLITUDE (dB) 13741-010 13741-102ADA4805-2-EP Enhanced Product TABLE OF CONTENTS Features .............................................................................................. 1 Absolute Maximum Ratings ............................................................6 Enhanced Product Features ............................................................ 1 Thermal Resistance .......................................................................6 Applications ....................................................................................... 1 Maximum Power Dissipation ......................................................6 General Description ......................................................................... 1 ESD Caution...................................................................................6 Typical Applications Circuit ............................................................ 1 Pin Configuration and Function Descriptions ..............................7 Revision History ............................................................................... 2 Typical Performance Characteristics ..............................................8 Specifications ..................................................................................... 3 Outline Dimensions ..........................................................................9 5 V Supply ................................................................................... 3 Ordering Guide .............................................................................9 5 V Supply ...................................................................................... 4 3 V Supply ...................................................................................... 5 REVISION HISTORY 4/16Revision 0: Initial Version Rev. 0 Page 2 of 9