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Zero-Drift, Single-Supply, Rail-to-Rail Input/Output ...

Zero-Drift, Single-Supply, Rail-to-Rail Input/Output operational amplifier data Sheet AD8628/AD8629/AD8630. FEATURES PIN CONFIGURATIONS. Lowest auto-zero amplifier noise OUT 1 5 V+. Low offset voltage: 1 V AD8628. TOP VIEW. input offset drift: V/ C V 2. (Not to Scale). 02735-001. Rail-to-Rail input and output swing +IN 3 4 IN. 5 V single-supply operation High gain, CMRR, and PSRR: 130 dB Figure 1. 5-Lead TSOT (UJ-5) and 5-Lead SOT-23 (RJ-5). Very low input bias current: 100 pA maximum Low supply current: mA. Overload recovery time: 50 s NC 1 8 NC.

Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Operational Amplifier Data Sheet AD8628/AD8629/AD8630 FEATURES Lowest auto-zero amplifier noise Low offset voltage: 1 µV AD8628

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Transcription of Zero-Drift, Single-Supply, Rail-to-Rail Input/Output ...

1 Zero-Drift, Single-Supply, Rail-to-Rail Input/Output operational amplifier data Sheet AD8628/AD8629/AD8630. FEATURES PIN CONFIGURATIONS. Lowest auto-zero amplifier noise OUT 1 5 V+. Low offset voltage: 1 V AD8628. TOP VIEW. input offset drift: V/ C V 2. (Not to Scale). 02735-001. Rail-to-Rail input and output swing +IN 3 4 IN. 5 V single-supply operation High gain, CMRR, and PSRR: 130 dB Figure 1. 5-Lead TSOT (UJ-5) and 5-Lead SOT-23 (RJ-5). Very low input bias current: 100 pA maximum Low supply current: mA. Overload recovery time: 50 s NC 1 8 NC.

2 AD8628. No external components required IN 2 7 V+. +IN 3 TOP VIEW 6 OUT. Qualified for automotive applications V 4 (Not to Scale) 5 NC. 02735-002. NC = NO CONNECT. APPLICATIONS Figure 2. 8-Lead SOIC_N (R-8). Automotive sensors Pressure and position sensors Strain gage amplifiers OUT A 1 8 V+. Medical instrumentation IN A 2 AD8629 7 OUT B. TOP VIEW. Thermocouple amplifiers +IN A 3 6 IN B. 02735-063. (Not to Scale). Precision current sensing V 4 5 +IN B. Photodiode amplifiers Figure 3. 8-Lead SOIC_N (R-8) and 8-Lead MSOP (RM-8). GENERAL DESCRIPTION.

3 OUT D. This amplifier has ultralow offset, drift, and bias current. OUT A 1 14. IN A 2 13 IN D. The AD8628/AD8629/AD8630 are wide bandwidth auto-zero +IN A 3 +IN D. AD8630 12. amplifiers featuring Rail-to-Rail input and output swing and low V+ 4 TOP VIEW 11 V . noise. Operation is fully specified from V to 5 V single supply +IN B 5. (Not to Scale). 10 +IN C. ( V to V dual supply). IN B 6 9 IN C. 02735-066. OUT B 7 8 OUT C. The AD8628/AD8629/AD8630 provide benefits previously found only in expensive auto-zeroing or chopper-stabilized Figure 4.

4 14-Lead SOIC_N (R-14) and 14-Lead TSSOP (RU-14). amplifiers. Using Analog Devices, Inc., topology, these zero- drift amplifiers combine low cost with high accuracy and low The AD8628/AD8629/AD8630 are specified for the extended noise. No external capacitor is required. In addition, the AD8628/. industrial temperature range ( 40 C to +125 C). The AD8628. AD8629/AD8630 greatly reduce the digital switching noise is available in tiny 5-lead TSOT, 5-lead SOT-23, and 8-lead found in most chopper-stabilized amplifiers. narrow SOIC plastic packages.

5 The AD8629 is available in the With an offset voltage of only 1 V, drift of less than V/ C, standard 8-lead narrow SOIC and MSOP plastic packages. The and noise of only V p-p (0 Hz to 10 Hz), the AD8628/ AD8630 quad amplifier is available in 14-lead narrow SOIC and AD8629/AD8630 are suited for applications where error 14-lead TSSOP plastic packages. See the Ordering Guide for sources cannot be tolerated. Position and pressure sensors, automotive grades. medical equipment, and strain gage amplifiers benefit greatly from nearly zero drift over their operating temperature range.

6 Many systems can take advantage of the Rail-to-Rail input and output swings provided by the AD8628/AD8629/AD8630 to reduce input biasing complexity and maximize SNR. Rev. K 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: 2002 2014 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. Technical Support AD8628/AD8629/AD8630 data Sheet TABLE OF CONTENTS. Features .. 1 Peak-to-Peak Noise .. 16. Applications .. 1 Noise Behavior with First-Order, Low-Pass Filter .. 16. General Description .. 1 Total Integrated input -Referred Noise for First-Order Filter16. Pin Configurations .. 1 input Overvoltage Protection .. 17. Revision History .. 3 output Phase Reversal .. 17. 4 Overload Recovery Time.

8 17. Electrical Characteristics VS = V .. 4 Infrared 18. Electrical Characteristics VS = V .. 5 Precision Current Shunt Sensor .. 19. Absolute Maximum Ratings .. 6 output amplifier for High Precision DACs .. 19. Thermal Characteristics .. 6 Outline Dimensions .. 20. ESD Caution .. 6 Ordering Guide .. 22. Typical Performance Characteristics .. 7 Automotive Products .. 22. Functional Description .. 15. 1/f Noise .. 15. Rev. K | Page 2 of 24. data Sheet AD8628/AD8629/AD8630. REVISION HISTORY. 8/14 Rev. J to Rev. K 1/05 Rev. C to Rev. D. Changes to Figure 36 and Figure 37.

9 12 Added AD8630 .. Universal Added Figure 5 and Figure 6 .. 1. 2/14 Rev. I to Rev. J. Changes to Caption in Figure 8 and Figure 7. Moved Revision History .. 3 Changes to Caption in Figure 14 .. 8. Changes to Figure 17 and Figure 18 .. 9 Changes to Figure 17 .. 8. Updated Outline Dimensions ..20 Changes to Figure 23 and Figure 24 .. 9. 4/11 Rev. H to Rev. I Changes to Figure 25 and Figure 26 .. 10. Changes to Figure 31 .. 11. Updated Outline Dimensions ..19. Changes to Figure 40, Figure 41, Figure 42 .. 12. Changes to Ordering Guide ..21.

10 Changes to Figure 43 and Figure 44 .. 13. 4/10 Rev. G to Rev. H Changes to Figure 51 .. 15. Change to Features List .. 1 Updated Outline 20. Change to General Description Section .. 1 Changes to Ordering Guide .. 20. Changes to Table 3 .. 5 10/04 Rev. B to Rev. C. Updated Outline Dimensions Section ..19. Updated Formatting .. Universal Changes to Ordering Guide ..21. Added AD8629 .. Universal 6/08 Rev. F to Rev. G Added SOIC and MSOP Pin Configurations .. 1. Changes to Features Section .. 1 Added Figure 48 .. 13. Changes to Table 5 and Figure 42 Caption.


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