OP184 Analog Devices, OP184 Datasheet
OP184
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OP184 Summary of contents
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... Telecom DAC output amplifier ADC input buffer GENERAL DESCRIPTION The OP184/OP284/OP484 are single, dual, and quad single-supply, 4 MHz bandwidth amplifiers featuring rail-to-rail inputs and outputs. They are guaranteed to operate from (or ±1 ±18 V) and function with a single supply as low as 1.5 V. These amplifiers are superb for single-supply applications requiring both ac and precision dc performance ...
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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 4/06—Rev Rev. D Changes to Table 1............................................................................ 3 Changes to Table 2............................................................................ 4 Changes to Table 3 ...
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... 25°C, unless otherwise noted Table 1. Parameter INPUT CHARACTERISTICS 1 Offset Voltage, OP184/OP284E Grade 1 Offset Voltage, OP184/OP284F Grade 1 Offset Voltage, OP484E Grade 1 Offset Voltage, OP484F Grade Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection Ratio Large Signal Voltage Gain ...
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... 1 25°C, unless otherwise noted Table 2. Parameter INPUT CHARACTERISTICS Offset Voltage, OP184/OP284E Grade Offset Voltage, OP184/OP284F Grade 1 Offset Voltage, OP484E Grade Offset Voltage, OP484F Grade 1 Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection Ratio OUTPUT CHARACTERISTICS Output Voltage High ...
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... V = ±15 25°C, unless otherwise noted Table 3. Parameter INPUT CHARACTERISTICS 1 Offset Voltage, OP184/OP284E Grade 1 Offset Voltage, OP184/OP284F Grade Offset Voltage, OP484E Grade 1 1 Offset Voltage, OP484F Grade Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection Ratio Large Signal Voltage Gain ...
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... Differential Input Voltage ±0.6 V Output Short-Circuit Duration to Indefinite GND Storage Temperature Range P-Suffix, S-Suffix Packages −65°C to +150°C Operating Temperature Range OP184/OP284/OP484E/OP484F −40°C to +125°C Junction Temperature Range P-Suffix, S-Suffix Packages −65°C to +150°C Lead Temperature 300°C (Soldering 60 sec) 1 For input voltages greater than 0 ...
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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 ...
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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 25°C A 100 ...
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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 300 25°C 270 +100 V 240 210 180 ...
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... 10M 1000 –1 –2 –3 –4 –5 100 125 0 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 0.1% 0.01 SETTLING TIME (µs) Figure 34. Step Size vs. Settling Time ≤ ...
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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 V = ±15V 100kΩ 0.3µV p-p n 100 10mV Figure 36. 0 Noise 100kΩ 0.3µV p-p n 100 10mV Figure 37. 0 Noise V = ±15V 25° 400mV ...
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... Figure 42. Small Signal Transient Response 0 ±1. LOAD T = 25°C A 0.01 0.001 500ns 0.0005 20 Figure 43. Total Harmonic Distortion 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 FREQUENCY (Hz) ...
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... NEG 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 BW the source resistance thermal noise voltage power (4 kTR Boltzmann’s constant = 1.38 × the ambient temperature in Kelvins of the circuit = 273. (°C). A Rev Page OP184/OP284/OP484 Figure 46. Therefore, the technique Figure 48, the expression for an amplifier’s total [ ] ( ) ( ) ( ) = + × ...
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... OP184/OP284/OP484 NOA R "NOISELESS" i NOA "NOISELESS" i NOA Figure 48. Op Amp Noise Circuit Model Used to Determine Total Circuit Equivalent Input Noise Voltage and Noise Figure 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 ...
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... In this application the OP284 serves two functions. First buffers the high output impedance of the DAC’ the order of 10 kΩ. The op amp provides a low impedance output to drive any following circuitry. Rev Page OP184/OP284/OP484 of the OP284 at 1.5 μV/°C helps maintain 17.4kΩ ...
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... OP184/OP284/OP484 Second, the op amp amplifies the output signal to provide a rail- to-rail output swing. 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 ≤ 4.095 V, the gain can be easily changed by adjusting OUT the values of R2 and R3 ...
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... 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 dc error, R2||R3 should be maintained OUT and the 12 V maximum rating of Q1. OUT2 AD589 value match this voltage threshold, S ⎛ ⎞ ...
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... OP184/OP284/OP484 Obviously desirable to keep this comparison voltage small because it becomes a significant portion of the overall dropout voltage. Here, the 20 mV reference is higher than the typical offset of the OP284 but is still reasonably low as a percentage (<0.5%). In adapting the limiter for other OUT Sense Resistor R ...
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... GAUGE PLANE 0.014 (0.36) 0.010 (0.25) 0.008 (0.20) 0.25 (0.0098) 0.430 (10.92) 0.10 (0.0039) MAX COPLANARITY Rev Page OP184/OP284/OP484 5.00 (0.1968) 4.80 (0.1890 6.20 (0.2440) 4.00 (0.1574) 5.80 (0.2284) 3.80 (0.1497 1.27 (0.0500) BSC 1.75 (0.0688) 1 ...
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... OP184ESZ-REEL −40°C to +125°C 1 OP184ESZ-REEL7 −40°C to +125°C OP184FS −40°C to +125°C OP184FS-REEL −40°C to +125°C OP184FS–REEL7 −40°C to +125°C 1 OP184FSZ −40°C to +125°C 1 OP184FSZ-REEL −40°C to +125°C 1 OP184FSZ-REEL7 −40°C to +125°C OP284EP − ...
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... NOTES Rev Page OP184/OP284/OP484 ...
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... OP184/OP284/OP484 NOTES ©2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. C00293-0-4/06(D) Rev Page ...