Overview
The AD536ASD/883B, produced by Analog Devices Inc., is a monolithic integrated circuit designed for true rms-to-dc conversion. This device offers high accuracy and performance comparable to or superior to that of more expensive hybrid or modular units. It directly computes the true rms value of complex input waveforms containing both ac and dc components, making it versatile for various measurement applications. The AD536ASD/883B is part of the AD536A family, known for its wide bandwidth, low power consumption, and robust operational capabilities.
Key Specifications
| Specification | Value |
|---|---|
| Accuracy Grades | ±0.2% (AD536AK), ±0.5% (AD536AJ and AD536AS) |
| Bandwidth | Up to 300 kHz for signal levels > 100 mV, 2 MHz for signal levels > 1 V |
| Crest Factor Compensation | Measurements with 1% error at crest factors up to 7 |
| Supply Voltage | Dual supply: ±3.0 V to ±18 V, Single supply: +5 V to +36 V |
| Quiescent Current | 1.2 mA |
| Temperature Range | Rated performance: −55°C to +125°C (AD536AS) |
| Package Types | 14-lead DIP, 10-pin TO-100 metal header, 20-terminal leadless hermetically sealed ceramic chip carrier |
| dB Output Dynamic Range | 60 dB |
| Short-Circuit Current | 20 mA |
| Output Resistance | 0.5 Ω |
| Small-Signal Bandwidth | 1 MHz |
| Slew Rate | 5 V/μs |
Key Features
- True RMS-to-DC Conversion: Directly computes the true rms value of complex input waveforms containing ac and dc components.
- Crest Factor Compensation: Allows measurements with 1% error at crest factors up to 7.
- Auxiliary dB Output: Provides a logarithmic output for dB conversion with a 60 dB dynamic range.
- Low Power Consumption: Operates with a quiescent current of 1.2 mA.
- Single or Dual Supply Operation: Compatible with a wide range of supply voltages from 5 V to 36 V.
- High Accuracy: Laser trimmed to minimize input and output offset voltage and optimize waveform symmetry.
- Robust Protection: Input and output pins are fully protected against overloads and short circuits.
Applications
- Remote Controllers and Battery-Powered Instruments: Suitable due to its low power consumption and robust operational capabilities.
- AC and DC Signal Measurement: Ideal for measuring complex waveforms in various industrial and scientific applications.
- Audio and Signal Processing: Can be used in audio equipment and signal processing systems requiring accurate rms measurements.
- Industrial Automation and Control Systems: Useful in systems that require precise measurement of signal levels.
Q & A
- What is the primary function of the AD536ASD/883B?
The AD536ASD/883B is a monolithic integrated circuit designed for true rms-to-dc conversion, computing the true rms value of complex input waveforms containing ac and dc components.
- What is the accuracy of the AD536ASD/883B?
The accuracy varies by grade: ±0.2% for the AD536AK, and ±0.5% for the AD536AJ and AD536AS.
- What is the bandwidth of the AD536ASD/883B?
The device has a bandwidth of up to 300 kHz for signal levels greater than 100 mV and up to 2 MHz for signal levels greater than 1 V.
- What is the crest factor compensation capability of the AD536ASD/883B?
The device allows measurements with 1% error at crest factors up to 7.
- What are the supply voltage options for the AD536ASD/883B?
The device can operate on dual supplies from ±3.0 V to ±18 V or single supplies from +5 V to +36 V.
- What is the quiescent current of the AD536ASD/883B?
The quiescent current is 1.2 mA.
- What is the temperature range for the AD536ASD/883B?
The rated performance temperature range is −55°C to +125°C for the AD536AS grade.
- Does the AD536ASD/883B have any special output features?
Yes, it has an auxiliary dB output pin that allows for dB conversion with a 60 dB dynamic range.
- Is the AD536ASD/883B protected against overloads and short circuits?
Yes, the input and output pins are fully protected against overloads and short circuits.
- What are some common applications of the AD536ASD/883B?
Common applications include remote controllers, battery-powered instruments, AC and DC signal measurement, audio and signal processing, and industrial automation and control systems.
