Low Cost CMOS, High Speed, Rail-to-Rail Amplifiers

1 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 +VS. Slew rate: 170 V/ s +IN 3 6 OUT. Settling time to : 28 ns VS 4 5 NC. 08054-026. Video specifications (G = +2, RL = 150 ) NC = NO CONNECT. dB gain flatness: 25 MHz Figure 1. 8-Lead SOIC_N (R-8). Differential gain error: ada4891 -1. Differential phase error.

2 Single-supply operation OUT 1 5 +VS. Wide supply range: V to V VS 2. Output swings to within 50 mV of supply rails 08054-001. +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: mA per amplifier ada4891 -2. APPLICATIONS. OUT1 1 8 +VS. Automotive infotainment systems IN1 2 7 OUT2. Automotive driver assistance systems +IN1 3 6 IN2. Imaging VS 4 5 +IN2. 08054-027. Consumer video NC = NO CONNECT. Active filters Figure 3. 8-Lead SOIC_N (R-8) and 8-Lead MSOP (RM-8).

3 Coaxial cable drivers ada4891 -3. Clock buffers Photodiode preamp PD1 1 14 OUT2. Contact image sensor and buffers PD2 2 13 IN2. PD3 3 12 +IN2. GENERAL DESCRIPTION. +VS 4 11 VS. The ada4891 -1 (single), ada4891 -2 (dual), ada4891 -3 (triple), +IN1 5 10 +IN3. and ada4891 -4 (quad) are cmos , high speed Amplifiers that offer high performance at a low cost. The Amplifiers feature true IN1 6 9 IN3. 08054-073. single-supply capability, with an input voltage range that extends OUT1 7 8 OUT3. 300 mV below the negative rail . Figure 4.

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. The Rail-to-Rail output stage enables the output to swing to within OUT1 1 14 OUT4. IN1 2 13 IN4. 50 mV of each rail , enabling maximum dynamic range. +IN1 3 12 +IN4. The ada4891 -1/ ada4891 -2/ ada4891 -3/ ada4891 -4 family of +VS 4 11 VS. Amplifiers is ideal for imaging applications, such as consumer +IN2 5 10 +IN3. video, CCD buffers, and contact image sensor and buffers.

5 Low IN2 6 9 IN3. 08054-074. distortion and fast settling time also make them ideal for active OUT2 7 8 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 in 8-lead SOIC and 5-lead SOT-23 packages. The ada4891 -2 14-lead TSSOP packages. The Amplifiers are specified to operate is available in 8-lead SOIC and 8-lead MSOP packages. The over the extended temperature range of 40 C to +125 C.

6 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 rights of third parties that may result from its use. Specifications subject to change without notice. No One Technology Way, Box 9106, Norwood, MA 02062-9106, license is granted by implication or otherwise under any patent or patent rights of analog devices .

7 Tel: 2010 2015 analog devices , Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. Technical Support ada4891 -1/ ada4891 -2/ ada4891 -3/ ada4891 -4 Data Sheet TABLE OF CONTENTS. Features .. 1 Effect of RF on 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. 4 Video Reconstruction Filter.

8 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.

9 16 Automotive Products .. 24. Wideband, Inverting Gain Operation .. 16. Recommended 16. Rev. F | Page 2 of 24. Data Sheet ada4891 -1/ ada4891 -2/ ada4891 -3/ ada4891 -4. REVISION HISTORY. 9/15 Rev. E to Rev. F 7/10 Rev. A to Rev. B. Changes to Features .. 1 Added ada4891 -3 and ada4891 -4 .. Universal Moved Revision History Section .. 3 Added 14-Lead SOIC and 14-Lead TSSOP Packages .. Universal Changes to Table 1 .. 4 Deleted Figure 4; Renumbered Figures Sequentially .. 1. Changes to Table 2 .. 5 Changes to Features Section and General Description 1.

10 Changes to Figure 7 and Figure 10 .. 8 Added Figure 4 and Figure 5 .. 1. Changes to Figure 15 and Figure 18 .. 9 Changes to Table 1 .. 3. Changes to Figure 19, Figure 21, and Figure 22 ..10 Changes to Table 2 .. 4. Changes to Figure 25 and Figure 29 ..11 Changes to Maximum Power Dissipation Section Changes to Figure 32, Figure 33, and Figure 36 ..12 and Figure 6 .. 6. Change to Figure 47 ..14 Added Table 4; Renumbered Tables Sequentially .. 6. Changes to Ordering Guide ..24 Deleted Figure 11 .. 6. Change to Automotive Products Section.