Low Cost CMOS, High Speed, Rail-to-Rail Amplifiers Data Sheet ADA4891-1/ADA4891-2/ADA4891-3/ADA4891-4 FEATURES CONNECTION DIAGRAMS Qualified for automotive applications ADA4891-1 High speed and fast settling NC 1 8 NC 3 dB bandwidth: 220 MHz (G = +1) IN 2 7 +V S +IN 3 6 OUT Slew rate: 170 V/s V 4 5 NC S Settling time to 0.1%: 28 ns Video specifications (G = +2, RL = 150 ) NC = NO CONNECT 0.1 dB gain flatness: 25 MHz Figure 1. 8-Lead SOIC N (R-8) Differential gain error: 0.05% ADA4891-1 Differential phase error: 0.25 1 +V OUT 5 S Single-supply operation Wide supply range: 2.7 V to 5.5 V V 2 S Output swings to within 50 mV of supply rails +IN 3 4 IN Low distortion: 79 dBc SFDR at 1 MHz Linear output current: 125 mA at 40 dBc Figure 2. 5-Lead SOT-23 (RJ-5) Low power: 4.4 mA per amplifier ADA4891-2 APPLICATIONS OUT1 1 8 +V S Automotive infotainment systems IN1 2 7 OUT2 Automotive driver assistance systems +IN1 3 6 IN2 Imaging V 4 5 +IN2 S Consumer video NC = NO CONNECT Active filters Figure 3. 8-Lead SOIC N (R-8) and 8-Lead MSOP (RM-8) Coaxial cable drivers ADA4891-3 Clock buffers PD1 1 14 OUT2 Photodiode preamp PD2 2 13 IN2 Contact image sensor and buffers PD3 3 12 +IN2 GENERAL DESCRIPTION +V 4 11 V S S The ADA4891-1 (single), ADA4891-2 (dual), ADA4891-3 (triple), +IN1 5 10 +IN3 and ADA4891-4 (quad) are CMOS, high speed amplifiers that IN1 6 9 IN3 offer high performance at a low cost. The amplifiers feature true OUT1 7 8 OUT3 single-supply capability, with an input voltage range that extends 300 mV below the negative rail. Figure 4. 14-Lead SOIC N (R-14) and 14-Lead TSSOP (RU-14) In spite of their low cost, the ADA4891-1/ADA4891-2/ADA4891-3/ ADA4891-4 ADA4891-4 family provides high performance and versatility. 1 14 OUT4 OUT1 The rail-to-rail output stage enables the output to swing to within 2 13 IN1 IN4 50 mV of each rail, enabling maximum dynamic range. 3 12 +IN4 +IN1 The ADA4891-1/ADA4891-2/ADA4891-3/ADA4891-4 family of +V 4 11 V S S amplifiers is ideal for imaging applications, such as consumer 5 10 +IN2 +IN3 video, CCD buffers, and contact image sensor and buffers. Low 6 9 IN3 IN2 distortion and fast settling time also make them ideal for active 7 8 OUT2 OUT3 filter applications. Figure 5. 14-Lead SOIC N (R-14) and 14-Lead TSSOP (RU-14) The ADA4891-1/ADA4891-2/ADA4891-3/ADA4891-4 are avail- able in a wide variety of packages. The ADA4891-1 is available 14-lead TSSOP packages. The amplifiers are specified to operate in 8-lead SOIC and 5-lead SOT-23 packages. The ADA4891-2 over the extended temperature range of 40C to +125C. is available in 8-lead SOIC and 8-lead MSOP packages. The ADA4891-3 and ADA4891-4 are available in 14-lead SOIC and Rev. F 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 20102015 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Technical Support www.analog.com Trademarks and registered trademarks are the property of their respective owners. 08054-001 08054-026 08054-027 08054-074 08054-073ADA4891-1/ADA4891-2/ADA4891-3/ADA4891-4 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Effect of RF on 0.1 dB Gain Flatness ........................................ 17 Applications ....................................................................................... 1 Driving Capacitive Loads .......................................................... 18 General Description ......................................................................... 1 Terminating Unused Amplifiers .............................................. 19 Connection Diagrams ...................................................................... 1 Disable Feature (ADA4891-3 Only) ......................................... 19 Revision History ............................................................................... 3 Single-Supply Operation ........................................................... 19 Specifications ..................................................................................... 4 Video Reconstruction Filter ...................................................... 20 5 V Operation ............................................................................... 4 Multiplexer .................................................................................. 20 3 V Operation ............................................................................... 5 Layout, Grounding, and Bypassing .............................................. 21 Absolute Maximum Ratings ............................................................ 7 Power Supply Bypassing ............................................................ 21 Maximum Power Dissipation ..................................................... 7 Grounding ................................................................................... 21 ESD Caution .................................................................................. 7 Input and Output Capacitance ................................................. 21 Typical Performance Characteristics ............................................. 8 Input-to-Output Coupling ........................................................ 21 Applications Information .............................................................. 16 Leakage Currents ........................................................................ 21 Using the ADA4891-1/ADA4891-2/ADA4891-3/ Outline Dimensions ....................................................................... 22 ADA4891-4 ................................................................................. 16 Ordering Guide .......................................................................... 24 Wideband, Noninverting Gain Operation .............................. 16 Automotive Products ................................................................. 24 Wideband, Inverting Gain Operation ..................................... 16 Recommended Values ................................................................ 16 Rev. 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