OP484 Analog Devices, OP484 Datasheet
OP484
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OP484 Summary of contents
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... These amplifiers are superb for single-supply applications requiring both ac and precision dc performance. The combination of wide bandwidth, low noise, and precision makes the OP184/OP284/ OP484 useful in a wide variety of applications, including filters and instrumentation. Other applications for these amplifiers include portable telecom- ...
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... OP184/OP284/OP484 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 General Description ......................................................................... 1 Pin Configurations ........................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Electrical Characteristics ............................................................. 3 Absolute Maximum Ratings ............................................................ 6 Thermal Resistance ...................................................................... 6 ESD Caution .................................................................................. 6 Typical Performance Characteristics ............................................. 7 Applications Information .............................................................. 14 Functional Description .............................................................. 14 Input Overvoltage Protection ................................................... 14 REVISION HISTORY 4/11—Rev Rev J Change to Figure 27 ....................................................................... 10 10/10—Rev Rev I Change to Output Characteristics, Output Voltage High Parameter, Table 2 ...
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... Table 2. Parameter INPUT CHARACTERISTICS Offset Voltage, OP184/OP284E Grade 1 Offset Voltage, OP184/OP284F Grade 1 Offset Voltage, OP484E Grade 1 Offset Voltage, OP484F Grade 1 Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection Ratio Large Signal Voltage Gain Bias Current Drift OUTPUT CHARACTERISTICS ...
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... CM A Table 3. Parameter INPUT CHARACTERISTICS Offset Voltage, OP184/OP284E Grade Offset Voltage, OP184/OP284F Grade Offset Voltage, OP484E Grade 1 Offset Voltage, OP484F Grade 1 Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection Ratio OUTPUT CHARACTERISTICS Output Voltage High Output Voltage Low ...
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... CM A Table 4. Parameter INPUT CHARACTERISTICS Offset Voltage, OP184/OP284E Grade 1 Offset Voltage, OP184/OP284F Grade 1 Offset Voltage, OP484E Grade 1 Offset Voltage, OP484F Grade 1 Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection Ratio Large Signal Voltage Gain Offset Voltage Drift E Grade ...
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... Input Voltage Differential Input Voltage 1 Output Short-Circuit Duration to GND Storage Temperature Range P-Suffix, S-Suffix Packages Operating Temperature Range OP184/OP284/OP484E/OP484F Junction Temperature Range P-Suffix, S-Suffix Packages Lead Temperature (Soldering 60 sec) 1 For input voltages greater than 0.6 V, the input current should be limited to less than prevent degradation or destruction of the input devices. ...
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... INPUT OFFSET VOLTAGE (µV) Figure 7. Input Offset Voltage Distribution 100 100 50 75 100 125 Rev Page OP184/OP284/OP484 300 –40°C ≤ T 250 200 150 100 0.25 0.50 0.75 1.00 OFFSET VOLTAGE DRIFT, TCV (µV/°C) OS Figure 8. Input Offset Voltage Drift Distribution ...
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... OP184/OP284/OP484 500 400 300 200 100 0 –100 –200 –300 –400 –500 –15 –10 –5 0 COMMON-MODE VOLTAGE (V) Figure 11. Input Bias Current vs. Common-Mode Voltage 1000 V = ±15V S SOURCE 100 SINK 10 0.01 0.1 LOAD CURRENT (mA) Figure 12. Output Voltage to Supply Rail vs. Load Current 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 –40 25 TEMPERATURE (°C) Figure 13. Supply Current vs. Temperature 1 ...
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... Figure 21. Closed-Loop Gain vs. Frequency (2 kΩ Load –10 –20 –30 –40 100 125 10 Figure 22. Closed-Loop Gain vs. Frequency (2 kΩ Load) Rev Page OP184/OP284/OP484 2kΩ 25°C A 100 1k 10k 100k 1M FREQUENCY (Hz ±15V 2kΩ ...
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... OP184/OP284/OP484 300 25°C 270 A 240 A = +100 V 210 180 150 120 100 1k 10k FREQUENCY (Hz) Figure 23. Output Impedance vs. Frequency 300 V = 15V 25°C 270 A 240 210 A = +100 V 180 150 120 100 1k 10k FREQUENCY (Hz) Figure 24. Output Impedance vs. Frequency ...
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... Rev Page OP184/OP284/OP484 ±2.5V ≤ 25° 100 FREQUENCY (Hz) Figure 32. Voltage Noise Density vs. Frequency ±2.5V ≤ 25° 100 FREQUENCY (Hz) Figure 33. Current Noise Density vs. Frequency ...
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... OP184/OP284/OP484 0.1% 0.01% 0 –2 –4 –6 –8 – SETTLING TIME (µs) Figure 35. Step Size vs. Settling Time 0 ±2. 10M V 0.2 0.1 0 –0.1 –0.2 –0.3 –5 –4 –3 –2 – TIME Figure 36. 0 Noise 0 ±15V 10M V 0.2 0.1 0 –0.1 – ...
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... V NO LOAD T = 25°C A 0.01 0.001 500ns 0.0005 20 Figure 43. Total Harmonic Distortion + Noise vs. Frequency V = ±0.75V LOAD T = 25°C A 1µs Rev Page OP184/OP284/OP484 V = ±0.75V +1000 ±2. 2kΩ ±2. ±1.5V O 100 1k 10k 20k ...
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... V– Figure 44. OP284 Equivalent Input Circuit For example, Figure 44 illustrates a simplified equivalent circuit for the input stage of the OP184/OP284/OP484. It comprises an NPN differential pair, Q1→Q2, and a PNP differential pair, Q3→Q4, operating concurrently. Diode Network D1→Diode Network D2 serves to clamp the applied differential input voltage to the OP284, thereby protecting the input transistors against avalanche damage ...
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... Hz bandwidth the op amp equivalent input noise voltage spectral power nOA (1 Hz bandwidth). Figure 48. Op Amp Noise Circuit Model Used to Determine Total Circuit Rev Page OP184/OP284/OP484 ] [ × ...
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... OP184/OP284/OP484 As a design aid, Figure 49 shows the total equivalent input noise of the OP284 and the total thermal noise of a resistor for com- parison. Note that for source resistance less than 1 kΩ, the equivalent input noise voltage of the OP284 is dominant. 100 ...
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... In this particular case, the gain is set to 4.1 so that the circuit generates output when the DAC output is at full scale. If other output voltage ranges are needed, such ≤ V the values of R2 and R3. Rev Page OP184/OP284/OP484 17.4kΩ 0.1µ ...
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... OP184/OP284/OP484 HIGH-SIDE CURRENT MONITOR In the design of power supply control circuits, a great deal of design effort is focused on ensuring the long-term reliability of a pass transistor over a wide range of load current conditions result, monitoring and limiting device power dissipation is of prime importance in these designs. The circuit shown in Figure 55 is ...
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... U2 REF192 OUT2 3 10kΩ 2.5V R10 C2 1kΩ 1µF 4 Figure 58. Low Dropout Regulator with Current Limiting\ Rev Page OP184/OP284/OP484 of 4.5 V with V OUT OUT2 AD589 Reference Diode D2, and the , defined as LIMIT ...
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... Because the OP484 exhibits a rail-to-rail input common-mode range, R9 and R10 are chosen to split the 3 V supply symmetrically. An in-the-loop compensation scheme is used around the OP484 that allows the op amp to drive C6 μF capacitor, without oscillation. C6 maintains a low impedance ac ground over the operating frequency range of the filter. ...
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... PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN. CORNER LEADS MAY BE CONFIGURED AS WHOLE OR HALF LEADS. Figure 61. 14-Lead Plastic Dual In-Line Package [PDIP] (N-14) P-Suffix Dimensions shown in inches and (millimeters) Rev Page OP184/OP284/OP484 0.325 (8.26) 0.310 (7.87) 0.300 (7.62) 0.195 (4.95) 0.130 (3.30) 0.115 (2.92) 0.014 (0.36) ...
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... OP184/OP284/OP484 0.25 (0.0098) 0.10 (0.0040) COPLANARITY 4.00 (0.1575) 3.80 (0.1496) 0.25 (0.0098) 0.10 (0.0039) COPLANARITY 0.10 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 PLANE 0.17 (0.0067) COMPLIANT TO JEDEC STANDARDS MS-012-AA 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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... OP484FPZ −40°C to +125°C OP484FS −40°C to +125°C OP484FS-REEL −40°C to +125°C OP484FS-REEL7 −40°C to +125°C OP484FSZ −40°C to +125°C OP484FSZ-REEL −40°C to +125°C OP484FSZ-REEL7 −40°C to +125° RoHS Compliant Part. Package Description ...
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... OP184/OP284/OP484 NOTES ©1996–2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D00293-0-4/11(J) Rev Page ...