Overview
The AD536AKD, produced by Analog Devices Inc., is a complete monolithic integrated circuit designed to perform true rms-to-dc conversion. This device offers performance comparable or superior to that of hybrid or modular units, making it a versatile and accurate solution for various applications. The AD536AKD directly computes the true rms value of any complex input waveform containing ac and dc components, with a crest factor compensation scheme allowing measurements with 1% error at crest factors up to 7.
Key Specifications
| Parameter | Rating/Value |
|---|---|
| Supply Voltage (Dual Supply) | ±18 V |
| Supply Voltage (Single Supply) | +36 V |
| Internal Power Dissipation | 500 mW |
| Maximum Input Voltage | ±25 V peak |
| Operating Temperature Range (AD536AJ/AD536AK) | 0°C to +70°C |
| Operating Temperature Range (AD536AS) | −55°C to +125°C |
| Quiescent Supply Current | 1.2 mA |
| Bandwidth | 450 kHz (Vrms > 100 mV), 2 MHz (Vrms > 1 V) |
| Accuracy (AD536AK) | ±0.2% maximum error |
| Accuracy (AD536AJ and AD536AS) | ±0.5% maximum error |
| dB Output Dynamic Range | 60 dB |
Key Features
- True rms-to-dc conversion with high accuracy (±0.2% for AD536AK, ±0.5% for AD536AJ and AD536AS)
- Crest factor compensation scheme allowing measurements with 1% error at crest factors up to 7
- Wide bandwidth: 450 kHz for signals greater than 100 mV and 2 MHz for signals greater than 1 V
- Auxiliary dB output pin with a dynamic range of 60 dB
- Single- or dual-supply operation with total supply levels from 5 V to 36 V
- Low power consumption: 1.2 mA quiescent current
- Full protection for input and output pins, including short-circuit protection and overload voltage tolerance
- Available in various packages, including hermetically sealed 14-lead DIP, 10-pin TO-100 metal header, and 20-terminal leadless ceramic chip carrier
Applications
The AD536AKD is well-suited for a wide variety of applications, including:
- Remote controllers and battery-powered instruments due to its low power consumption
- Measurement of complex ac and dc waveforms in industrial and scientific instruments
- Audio and signal processing applications where accurate rms measurements are required
- Power monitoring and control systems where the true rms value of a signal is crucial
Q & A
- What is the primary function of the AD536AKD?
The AD536AKD performs true rms-to-dc conversion, computing the true rms value of any complex input waveform containing ac and dc components.
- What is the accuracy of the AD536AKD?
The AD536AKD has a maximum error of ±0.2%, while the AD536AJ and AD536AS have maximum errors of ±0.5%.
- What is the bandwidth of the AD536AKD?
The device has a bandwidth of 450 kHz for signals greater than 100 mV and 2 MHz for signals greater than 1 V.
- Does the AD536AKD support single or dual supply operation?
Yes, it operates equally well from split supplies or a single supply with total supply levels from 5 V to 36 V.
- What is the quiescent supply current of the AD536AKD?
The quiescent supply current is 1.2 mA.
- What is the operating temperature range of the AD536AKD?
The operating temperature range is 0°C to +70°C for AD536AJ/AD536AK and −55°C to +125°C for AD536AS.
- Does the AD536AKD have any special output features?
Yes, it has an auxiliary dB output pin with a dynamic range of 60 dB.
- What kind of protection does the AD536AKD offer for its input and output pins?
The device offers full protection for input and output pins, including short-circuit protection and overload voltage tolerance.
- In what packages is the AD536AKD available?
The AD536AKD is available in hermetically sealed 14-lead DIP, 10-pin TO-100 metal header, and 20-terminal leadless ceramic chip carrier packages.
- What are some typical applications of the AD536AKD?
Typical applications include remote controllers, battery-powered instruments, industrial and scientific instruments, audio and signal processing, and power monitoring and control systems.
