AD8672 Analog Devices, AD8672 Datasheet
AD8672
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AD8672 Summary of contents
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... –IN B – OUT B OUT Figure 5. 14-Lead SOIC_N (R-14) The AD8671, AD8672, and AD8674 are members of a growing series of low noise op amps offered by Analog Devices, Inc. Table 1. Voltage Noise Package 0.9 nV 1.1 nV Single AD797 AD8597 Dual AD8599 Quad One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. ...
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... Outline Dimensions ....................................................................... 15 Ordering Guide .......................................................................... 17 4/04—Rev Rev. B Changes to Figure 32 .................................................................. 11 Changes to Figures 36, 37, and 38 ............................................ 12 1/04—Rev Rev. A Added AD8672 and AD8674 parts .............................. Universal Changes to Specifications ............................................................. 3 Deleted Figure 3 ............................................................................. 6 Changes to Figures 7, 8, and 9 ..................................................... 6 Changes to Figure 37 .................................................................. 12 Added new Figure 32 ................................................................. 10 ...
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... 0. step 0.01 step GBP kHz kHz kHz kHz Rev Page AD8671/AD8672/AD8674 Min Typ Max Unit 20 75 μV 30 125 μV 0.3 0.5 μV/°C 0.3 0.8 μV/°C –12 +3 +12 nA – ...
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... AD8674 Supply Current/Amplifier DYNAMIC PERFORMANCE Slew Rate Settling Time Gain Bandwidth Product NOISE PERFORMANCE Peak-to-Peak Noise Voltage Noise Density Current Noise Density Channel Separation AD8672/AD8674 Symbol Conditions V OS –40°C < T < +125°C A ∆V /∆T –40°C < T < +125°C ...
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... SOIC_N (R) 300°C 14-Lead SOIC_N (R) 14-Lead TSSOP (RU) 1 θ is specified for the worst-case conditions, that is., θ JA device soldered on a 4-layer circuit board for surface-mount packages. Rev Page AD8671/AD8672/AD8674 1 θ θ Unit JA JC 142 44 °C/W 120 43 ° ...
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... AD8671/AD8672/AD8674 TYPICAL PERFORMANCE CHARACTERISTICS FREQUENCY (Hz) Figure 7. Voltage Noise Density vs. Frequency 31.5 27.0 22.5 18.0 13.5 9.0 4 0.1 0.2 0.3 0.4 0.5 0.6 FREQUENCY (kHz) Figure 8. Voltage Noise Density vs. Frequency 17.5 15.0 12.5 10.0 7.5 5.0 2 FREQUENCY (kHz) Figure 9. Voltage Noise Density vs. Frequency V = ±15V 100 V = ± ...
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... Figure 17. Output Voltage Low vs. Temperature 60 50 GAIN –10 –20 –30 –40 125 100k Figure 18. Open-Loop Gain and Phase Shift vs. Frequency Rev Page AD8671/AD8672/AD8674 V = ±15V R = 2kΩ 600Ω TEMPERATURE (° ±15V 600Ω 2kΩ ...
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... AD8671/AD8672/AD8674 30000 ±5V 25000 20000 15000 ±15V 10000 5000 0 –40 25 TEMPERATURE (°C) Figure 19. Open-Loop Gain vs. Temperature 100 –10 –20 –30 –40 –50 1k 10k 100k 1M FREQUENCY (Hz) Figure 20. Closed-Loop Gain vs. Frequency 100 ...
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... V = ±15V 10M 100M Rev Page AD8671/AD8672/AD8674 V = ±15V SY –PSRR +PSRR 100 1k 10k 100k 1M FREQUENCY (Hz) Figure 28. PSRR vs. Frequency V = ±2.5V TO ±18V TEMPERATURE (°C) Figure 29. PSRR vs. Temperature = ±15V TIME (1μs/DIV) Figure 30 ...
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... AD8671/AD8672/AD8674 0 –20 –40 –60 –80 –100 –120 –140 100 1k 10k 100k FREQUENCY (Hz) Figure 31. Channel Separation V = ±15V, ± 10M 100M Rev Page ...
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... R Figure 32 shows the uncompensated output response with a 10 kΩ resistor in the feedback and the compensated response with C is lower than it is for the Rev Page AD8671/AD8672/AD8674 can be considered small capacitor should be inserted in parallel compensate for the pole introduced by the input F ...
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... TIME (10μs/DIV) Figure 33. Output Phase Reversal TOTAL NOISE VS. SOURCE RESISTANCE The low input voltage noise of the AD8671/AD8672/AD8674 makes them a great choice for applications with low source resistance. However, because they have low input current noise, they can also be used in circuits with substantial source resistance ...
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... Hz Figure 35. Total Harmonic Distortion and Noise DRIVING CAPACITIVE LOADS The AD8671/AD8672/AD8674 can drive large capacitive loads without causing instability. However, when configured in unity gain, driving very large loads can cause unwanted ringing or instability. Figure 36 shows the output of the AD8671 with a capacitive load ...
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... In addition to the R 10kΩ A excellent dc specifications, the AD8671/AD8672/AD8674 have a unique performance at high frequencies; the high open-loop gain and wide bandwidth allow the user to design a filter with a high closed-loop gain if desirable. To optimize the filter design recommended to use small value resistors to minimize the thermal noise ...
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... Figure 43. 8-Lead Standard Small Outline Package [SOIC_N] Narrow Body (R-8) Dimensions shown in millimeters and (inches) 3.20 3.00 2.80 5. 3.20 4.90 3.00 4.65 1 2.80 4 PIN 1 0.65 BSC 0.95 15° MAX 0.85 1.10 MAX 0.75 0.15 0.23 6° 0.40 0.05 0.09 0° 0.25 COPLANARITY 0.10 COMPLIANT TO JEDEC STANDARDS MO-187-AA Figure 44. 8-Lead Mini Small Outline Package [MSOP] (RM-8) Dimensions shown in millimeters Rev Page AD8671/AD8672/AD8674 0.50 (0.0196) 45° 0.25 (0.0099) 1.27 (0.0500) 0.40 (0.0157) 0.80 0.55 0.40 ...
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... AD8671/AD8672/AD8674 4.00 (0.1575) 3.80 (0.1496) 0.25 (0.0098) 0.10 (0.0039) COPLANARITY 0.10 4.50 4.40 4.30 PIN 1 1.05 1.00 0.80 0.15 0.05 COPLANARITY 0.10 8.75 (0.3445) 8.55 (0.3366 6.20 (0.2441) 1 5.80 (0.2283) 7 1.27 (0.0500) BSC 1.75 (0.0689) 1.35 (0.0531) SEATING 0.51 (0.0201) 0.25 (0.0098) PLANE 0.31 (0.0122) 0.17 (0.0067) COMPLIANT TO JEDEC STANDARDS MS-012-AB CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN. ...
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... AD8672AR-REEL7 –40°C to +125°C AD8672ARZ –40°C to +125°C AD8672ARZ-REEL –40°C to +125°C AD8672ARZ-REEL7 –40°C to +125°C AD8672ARMZ –40°C to +125°C AD8672ARMZ-REEL –40°C to +125°C AD8674AR –40°C to +85°C AD8674ARZ –40°C to +85°C AD8674ARZ-REEL – ...
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... AD8671/AD8672/AD8674 NOTES Rev Page ...
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... NOTES Rev Page AD8671/AD8672/AD8674 ...
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... AD8671/AD8672/AD8674 NOTES ©2004–2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D03718–0–6/10(E) Rev Page ...