AD8531 Analog Devices, AD8531 Datasheet
AD8531
Specifications of AD8531
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AD8531 Summary of contents
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... The AD8531, AD8532, and AD8534 are specified over the extended industrial (−40°C to +85°C) temperature range. The AD8531 is available in 8-lead SOIC and 5-lead SC70 and SOT-23 packages. The AD8532 is available in 8-lead SOIC, MSOP, and TSSOP surface-mount packages. The AD8534 is available in narrow SOIC-14 and 14-lead TSSOP surface-mount packages ...
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... AD8531/AD8532/AD8534 TABLE OF CONTENTS Specifications..................................................................................... 3 Electrical Characteristics............................................................. 3 Electrical Characteristics............................................................. 4 Absolute Maximum Ratings............................................................ 5 ESD Caution.................................................................................. 5 Typical Performance Characteristics ............................................. 6 Theory of Operation ...................................................................... 11 Short-Circuit Protection............................................................ 11 Power Dissipation....................................................................... 11 Power Calculations for Varying or Unknown Loads............. 12 Calculating Power by Measuring Ambient and Case Temperature ................................................................................ 12 Calculating Power by Measuring Supply Current.................. 13 REVISION HISTORY 04/05— ...
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... T ≤ +85° OUT MHz OUT V PSRR −40°C ≤ T ≤ +85° kΩ 0.01% S GBP ф kHz kΩ kHz kHz kHz n Rev Page AD8531/AD8532/AD8534 Min Typ Max Unit V/mV 20 µV/°C 50 fA/°C 20 fA/°C 2.85 2. 100 mV 125 mV ± ...
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... AD8531/AD8532/AD8534 ELECTRICAL CHARACTERISTICS @ 25°C, unless otherwise noted Table 2. Parameter INPUT CHARACTERISTICS Offset Voltage Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection Ratio Large Signal Voltage Gain Offset Voltage Drift Bias Current Drift Offset Current Drift OUTPUT CHARACTERISTICS ...
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... JA 2.5 – 2.0 1.5 1.0 0 100 120 140 R (Ω) LOAD = ±2 Connected to GND ( Rev Page AD8531/AD8532/AD8534 θ Unit JC 126 °C/W 146 °C/W 43 °C/W 45 °C/W 43 °C/W 36 °C/W 43 °C/W 160 180 200 ...
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... AD8531/AD8532/AD8534 TYPICAL PERFORMANCE CHARACTERISTICS 500 400 300 200 100 –12 –10 –8 –6 –4 –2 INPUT OFFSET VOLTAGE (mV) Figure 6. Input Offset Voltage Distribution 500 400 300 200 100 –12 –10 –8 –6 –4 –2 INPUT OFFSET VOLTAGE (mV) Figure 7. Input Offset Voltage Distribution – ...
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... Figure 15. Open-Loop Gain and Phase vs. Frequency 100 1000 Figure 16. Closed-Loop Output Voltage Swing vs. Frequency 135 2 180 1 0 10M 100M 1k Figure 17. Closed-Loop Output Voltage Swing vs. Frequency Rev Page AD8531/AD8532/AD8534 LOAD 25°C A 10k 100k 1M 10M FREQUENCY (Hz 2. 25° 2kΩ 2.5V p-p IN 10k ...
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... AD8531/AD8532/AD8534 200 180 T = 25°C A 160 140 120 100 10k 100k 1M LOAD CURRENT (mA) Figure 18. Closed-Loop Output Impedance vs. Frequency 100 MARKER 41µV/√Hz Figure 19. Voltage Noise Density vs. Frequency 100 MARKER 25.9µV/√Hz Figure 20. Voltage Noise Density vs. Frequency 10M 100M 1000 25°C ...
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... Figure 27. Small Signal Overshoot vs. Load Capacitance 10000 10 Figure 28. Small Signal Overshoot vs. Load Capacitance 0.90 0.85 0.80 0.75 0.70 0.65 0.60 0.55 0.50 10000 –40 Figure 29. Supply Current per Amplifier vs. Temperature Rev Page AD8531/AD8532/AD8534 25° 600Ω L –OS +OS 100 1000 CAPACITANCE (pF 2. 25° 600Ω ...
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... AD8531/AD8532/AD8534 0. 25°C A 0.70 0.60 0.50 0.40 0.30 0.20 0.10 0.00 0.75 1.00 1.50 2.00 SUPPLY VOLTAGE (±V) Figure 30. Supply Current per Amplifier vs. Supply Voltage V = 1.35V 50mV 1Ω 2kΩ 300pF 25°C A 500 ns/DIV Figure 31. Small Signal Transient Response 50mV 1Ω ...
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... As a result of the design of the output stage for maximum load current capability, the AD8531/AD8532/AD8534 do not have any internal short-circuit protection circuitry. Direct connection of the output of the AD8531/AD8532/AD8534 to the positive supply in single-supply applications destroys the device. In those applications where some protection is needed, ...
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... The quantity within the parentheses is the maximum voltage developed across either output transistor additional design aid in calculating available load current from the AD8531/AD8532/AD8534, Figure 5 illustrates the output voltage of the AD8531/AD8532/AD8534 as a function of load resistance. POWER CALCULATIONS FOR VARYING OR T MAX = 150°C ...
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... This input current is not inherently damaging to the device, as long limited less. For the AD8531/AD8532/ AD8534, once the input voltage exceeds the supply by more than 0.6 V, the input current quickly exceeds 5 mA. If this con- dition continues to exist, an external series resistor should be added ...
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... This value is reduced to the smallest value for acceptable performance (typically, 1 µF). For the case load capacitor on the AD8531/AD8532/AD8534, the optimal snubber network Ω in series with 1 µF. The benefit is immediately apparent, as seen in the scope photo in Figure 41. The top trace was taken with load, and the bottom trace was taken with the 5 Ω ...
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... COMMON Figure 42. A High Output Current Reference/Regulator The low dropout performance of this circuit is provided by stage U2, an AD8531 connected as a follower/buffer for the basic reference voltage produced by U1. The low voltage saturation characteristic of the AD8531/AD8532/AD8534 allows up to 100 mA of load current in the illustrated use ...
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... Figure 43. A Single-Supply, Balanced Line Driver for Multimedia and Automotive Applications SINGLE-SUPPLY HEADPHONE AMPLIFIER Because of its speed and large output drive, the AD8531/ AD8532/AD8534 make an excellent headphone driver, as illustrated in Figure 44. Its low supply operation and rail-to-rail inputs and outputs give a maximum signal swing on a single 5 V supply ...
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... Because of the high 100k Ω output current drive and low dropout voltage of the AD8531/AD8532/AD8534, the largest signal available on a single 5 V supply is approximately 4.5 V p-p into a 600 Ω transmission system. Amplifier A3 is configured as a difference amplifier for two reasons: (1) It prevents the transmit signal ...
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... AD8531/AD8532/AD8534 OUTLINE DIMENSIONS 3.10 3.00 2. 4.50 4.40 6.40 BSC 4. PIN 1 0.65 BSC 0.15 1.20 0.05 MAX 0.30 SEATING COPLANARITY 0.20 0.19 PLANE 0.10 0.09 COMPLIANT TO JEDEC STANDARDS MO-153AA Figure 47. 8-Lead Thin Shrink Small Outline Package [TSSOP] (RU-8) Dimensions shown in millimeters 5.10 5 ...
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... AD8531AR −40°C to +85°C AD8531AR-REEL −40°C to +85°C 1 AD8531ARZ −40°C to +85°C 1 AD8531ARZ-REEL −40°C to +85°C AD8531ART-REEL −40°C to +85°C AD8531ART-REEL7 −40°C to +85°C 1 AD8531ARTZ-REEL7 −40°C to +85°C AD8532AR −40°C to +85°C AD8532AR-REEL − ...
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... AD8531/AD8532/AD8534 Model Temperature Range AD8534ARU −40°C to +85°C AD8534ARU-REEL −40°C to +85°C 1 AD8534ARUZ −40°C to +85°C 1 AD8534ARUZ-REEL −40°C to +85° Pb-free part. © 2005 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. ...