Overview
The AD536AJD is a monolithic integrated circuit designed by Analog Devices Inc. that performs true root-mean-square (rms) to direct current (DC) conversion. This device is capable of computing the true rms value of any complex input waveform containing both AC and DC components. It offers high accuracy and wide bandwidth, making it suitable for a variety of industrial and measurement applications.
Key Specifications
| Parameter | Description |
|---|---|
| Accuracy Grades | Available in J and K grades for commercial temperature range (0°C to 70°C), and S grade for extended range (−55°C to +125°C) |
| Maximum Error | ±2 mV ± 0.2% of reading (AD536AK), ±5 mV ± 0.5% of reading (AD536AJ and AD536AS) |
| Bandwidth | 300 kHz with less than 3 dB errors for signal levels greater than 100 mV, 450 kHz for signals greater than 1 V |
| Crest Factor Compensation | Measurements with 1% error at crest factors up to 7 |
| Supply Voltage | Total supply levels from 5 V to 36 V, single or dual supply operation |
| Quiescent Current | 1.2 mA |
| Package | Hermetically sealed 14-lead DIP or 10-pin TO-100 metal header package, also available in a 20-terminal leadless hermetically sealed ceramic chip carrier for AD536AS |
| dB Output | Auxiliary dB output pin with a dynamic range of 60 dB |
Key Features
- True rms-to-dc conversion with high accuracy and low error rates
- Laser trimmed for high accuracy and minimized input and output offset voltage
- Wide response capability and high bandwidth up to 300 kHz
- Crest factor compensation for accurate measurements at high crest factors
- Auxiliary dB output pin for logarithmic conversion with a 60 dB dynamic range
- Low power consumption with 1.2 mA quiescent current
- Single or dual supply operation with total supply levels from 5 V to 36 V
- Input and output pins fully protected, including short-circuit protection
Applications
The AD536AJD is suitable for a wide range of applications, including:
- Industrial measurement and control systems
- Battery-powered instruments and remote controllers
- AC voltage and current measurement
- Audio and signal processing systems where accurate rms values are required
- High-precision measurement instruments
Q & A
- What is the primary function of the AD536AJD?
The AD536AJD performs true root-mean-square (rms) to direct current (DC) conversion of complex input waveforms containing AC and DC components.
- What are the accuracy grades available for the AD536A series?
The AD536A is available in J and K grades for commercial temperature range (0°C to 70°C), and S grade for the extended range (−55°C to +125°C).
- What is the maximum error for the AD536AK and AD536AJ models?
The AD536AK has a maximum error of ±2 mV ± 0.2% of reading, while the AD536AJ and AD536AS have a maximum error of ±5 mV ± 0.5% of reading.
- What is the bandwidth of the AD536AJD?
The device has a bandwidth of 300 kHz with less than 3 dB errors for signal levels greater than 100 mV, and up to 450 kHz for signals greater than 1 V.
- Does the AD536AJD support single or dual supply operation?
Yes, the AD536AJD supports both single and dual supply operation with total supply levels from 5 V to 36 V.
- What is the quiescent current of the AD536AJD?
The quiescent current is 1.2 mA.
- What types of packages are available for the AD536AJD?
The AD536AJD is available in hermetically sealed 14-lead DIP or 10-pin TO-100 metal header packages, and also in a 20-terminal leadless hermetically sealed ceramic chip carrier for the AD536AS model.
- Does the AD536AJD have any special output features?
Yes, it has an auxiliary dB output pin that allows for logarithmic conversion with a dynamic range of 60 dB.
- Is the AD536AJD protected against overloads and short circuits?
Yes, the input and output pins are fully protected, including short-circuit protection.
- What are some common applications for the AD536AJD?
Common applications include industrial measurement and control systems, battery-powered instruments, AC voltage and current measurement, and high-precision measurement instruments.
