AD8684 Analog Devices, AD8684 Datasheet
AD8684
Specifications of AD8684
Related parts for AD8684
AD8684 Summary of contents
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... Portable medical instrumentation Supply current monitoring GENERAL DESCRIPTION The AD8682 and AD8684 are dual and quad low power, precision (1 mV) JFET amplifiers featuring excellent speed at low supply currents. The slew rate is typically 9 V/μs with a supply current under 250 μA per amplifier. These unity-gain stable amplifiers have a typical gain bandwidth of 3 ...
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... AD8682/AD8684 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Pin Configurations ........................................................................... 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Electrical Characteristics ............................................................. 3 Absolute Maximum Ratings ............................................................ 4 Thermal Resistance ...................................................................... 4 REVISION HISTORY 7/08—Rev Rev. B Changes to Phase Inversion Section ............................................ 10 Deleted Figure 33 ............................................................................ 10 Added Figure 33 and Figure 34..................................................... 10 Updated Outline Dimensions ....................................................... 12 7/07—Rev Rev. A Change to Figure 21 ...
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... V, −40°C ≤ T ≤ +85° kΩ distortion 0.01% S GBP Ø p-p 0 kHz Rev Page AD8682/AD8684 Min Typ Max 0.35 1 2 125 20 100 −11 +15 ≤ +85° 13.5 13.9 −13.9 −13 − ...
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... AD8682/AD8684 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Supply Voltage Input Voltage 1 Differential Input Voltage Output Short-Circuit Duration Storage Temperature Range Operating Temperature Range Junction Temperature Range Lead Temperature (Soldering, 60 sec) 1 For supply voltages less than ±18 V, the absolute maximum input voltage is equal to the supply voltage. ...
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... Rev Page AD8682/AD8684 A = 100 VCL VCL VCL 0 1k 10k 100k 1M FREQUENCY (Hz) Figure 6. AD8682 Closed-Loop Gain vs. Frequency –SR + –75 –50 – ...
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... AD8682/AD8684 1000 100 100 FREQUENCY (Hz) Figure 9. Voltage Noise Density vs. Frequency 1000 V = ±15V 25°C A 100 10 1 0.1 –15 –10 –5 0 COMMON-MODE VOLTAGE (V) Figure 10. Input Bias Current vs. Common-Mode Voltage 480 T = 25°C A 475 470 465 460 455 450 0 ±5 ±10 SUPPLY VOLTAGE (V) Figure 11 ...
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... V = ±15V 25° 100 125 –1.0 –0.8 –0.6 Rev Page AD8682/AD8684 V = ±15V 25° 10kΩ VCL 1k 10k 100k FREQUENCY (Hz ±15V 25° 10k 100k 1M FREQUENCY (Hz) Figure 19 ...
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... TEMPERATURE (°C) Figure 24. AD8684 Input Bias Current vs. Temperature 950 945 940 935 930 925 920 915 910 SUPPLY VOLTAGE (V) Figure 25. AD8684 Relative Supply Current vs. Supply Voltage 950 945 940 935 930 925 920 915 910 –50 – TEMPERATURE (° ...
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... FREQUENCY (Hz) Figure 27. AD8684 PSRR vs. Frequency 14 12 SINK 10 SOURCE –50 – TEMPERATURE (°C) Figure 28. AD8684 Short-Circuit Current vs. Temperature 140 120 100 10k 100k 1M FREQUENCY (Hz) Figure 29. AD8684 CMRR vs. Frequency ±15V ...
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... AD8682/AD8684 APPLICATIONS INFORMATION The AD8682 and AD8684 are dual and quad JFET op amps that are optimized for high speed at low power. This combination makes these amplifiers excellent choices for battery-powered or low power applications that require above average performance. Applications benefiting from this performance combination include telecommunications, geophysical exploration, portable medical equipment, and navigational instrumentation ...
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... Q factor; the cutoff frequency (f ); and the gain of a two- C pole state variable filter. The AD8684 has been used in this design because of its high bandwidth, low power, and low noise. This circuit takes only three packages to build because of the quad configuration of the op amps and DACs. ...
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... AD8682/AD8684 OUTLINE DIMENSIONS 0.25 (0.0098) 0.10 (0.0040) COPLANARITY 5.00 (0.1968) 4.80 (0.1890 6.20 (0.2441) 4.00 (0.1574) 1 5.80 (0.2284) 3.80 (0.1497) 4 1.27 (0.0500) BSC 1.75 (0.0688) 1.35 (0.0532) 8° 0° 0.51 (0.0201) 0.10 0.31 (0.0122) 0.25 (0.0098) SEATING 0.17 (0.0067) PLANE COMPLIANT TO JEDEC STANDARDS MS-012-A A 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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... Dimensions shown in millimeters and (inches) 5.10 5.00 4. 4.50 6.40 4.40 BSC 4. PIN 1 0.65 BSC 1.05 1.20 1.00 0.20 MAX 0.80 0.09 0.15 SEATING 0.05 0.30 PLANE COPLANARITY 0.19 0.10 COMPLIANT TO JEDEC STANDARDS MO-153-AB-1 Figure 39. 14-Lead Thin Shrink Small Outline Package [TSSOP] (RU-14) Dimensions shown in millimeters Rev Page AD8682/AD8684 0.50 (0.0197) 45° 0.25 (0.0098) 8° 0° 1.27 (0.0500) 0.25 (0.0098) 0.40 (0.0157) 0.17 (0.0067) 0.75 8° 0.60 0° 0.45 ...
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... AD8684ARZ −40°C to +85°C 1 AD8684ARZ-REEL −40°C to +85°C 1 AD8684ARZ-REEL7 −40°C to +85°C 1 AD8684ARUZ −40°C to +85°C 1 AD8684ARUZ-REEL −40°C to +85° RoHS Compliant Part. Package Description Package Option 8-Lead SOIC_N R-8 8-Lead SOIC_N ...
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... NOTES Rev Page AD8682/AD8684 ...
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... AD8682/AD8684 NOTES ©2006–2008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D06278-0-7/08(B) Rev Page ...