Overview
The AD536ASH is a high-performance, monolithic integrated circuit designed by Analog Devices Inc. for true root-mean-square (rms) to DC conversion. This device is part of the AD536A series, known for its superior performance comparable to or even surpassing that of hybrid or modular units. The AD536ASH is particularly suited for applications requiring accurate measurement of complex waveforms, including both AC and DC components. It is available in various packages, including a hermetically sealed 10-pin TO-100 metal header package, making it suitable for military and high-reliability applications.
Key Specifications
| Parameter | Value |
|---|---|
| Part Number | AD536ASH/883B |
| Package | TO-100-10 |
| Temperature Range | -55°C to +125°C |
| Bandwidth | Up to 300 kHz |
| Crest Factor Compensation | Up to 7 with 1% error |
| Accuracy Grades | J, K, S (depending on the version) |
| Maximum Total Error | ±2 mV ± 0.2% of reading (AD536AK), ±5 mV ± 0.5% of reading (AD536AJ and AD536AS) |
| Input Protection | Overload voltages beyond supply levels |
| Output Protection | Short-circuit protected |
Key Features
- True RMS-to-DC Conversion: The AD536ASH computes the true root-mean-square level of complex AC and DC input signals, providing an equivalent DC output level.
- Crest Factor Compensation: Allows measurements with 1% error at crest factors up to 7.
- Auxiliary dB Output: The logarithm of the rms output signal is available on a separate pin, enabling dB conversion with a useful dynamic range of 60 dB.
- High Accuracy: Laser-trimmed to minimize input and output offset voltage and optimize waveform symmetry, ensuring full-scale accuracy without external trims.
- Input and Output Protection: Input circuitry can handle overload voltages beyond supply levels, and the output is short-circuit protected.
Applications
- Measurement and Testing Equipment: Ideal for applications requiring accurate measurement of complex waveforms, such as in signal analyzers and multimeters.
- Aerospace and Military: The AD536ASH/883B version is specifically designed for high-reliability and military applications due to its extended temperature range and hermetically sealed package.
- Industrial Automation: Used in various industrial automation systems where precise signal measurement is crucial.
- Medical Equipment: Suitable for medical devices that require accurate signal processing and measurement.
Q & A
- What is the primary function of the AD536ASH?
The AD536ASH is a true rms-to-DC converter, computing the root-mean-square level of complex AC and DC input signals and providing an equivalent DC output level.
- What are the available packages for the AD536ASH?
The AD536ASH is available in a hermetically sealed 10-pin TO-100 metal header package, among other configurations.
- What is the temperature range for the AD536ASH?
The AD536ASH operates over a temperature range of -55°C to +125°C, making it suitable for high-reliability applications.
- How does the crest factor compensation work in the AD536ASH?
The AD536ASH features crest factor compensation, allowing measurements with 1% error at crest factors up to 7.
- What is the significance of the auxiliary dB output in the AD536ASH?
The auxiliary dB output provides the logarithm of the rms output signal, enabling dB conversion with a useful dynamic range of 60 dB.
- Is the AD536ASH protected against input and output overloads?
Yes, the input circuitry can handle overload voltages beyond supply levels, and the output is short-circuit protected.
- What are the accuracy grades available for the AD536ASH?
The AD536ASH is available in accuracy grades J, K, and S, each with different maximum total error specifications.
- What is the bandwidth of the AD536ASH?
The AD536ASH has a bandwidth of up to 300 kHz with less than 3 dB errors for signal levels greater than 100 mV.
- Is the AD536ASH suitable for military applications?
Yes, the AD536ASH/883B version is specifically designed for high-reliability and military applications.
- What is the significance of laser trimming in the AD536ASH?
Laser trimming minimizes input and output offset voltage and optimizes waveform symmetry, ensuring full-scale accuracy without external trims.
