Overview
The AD536AKH is a true rms-to-dc converter integrated circuit produced by Analog Devices Inc. This monolithic IC is designed to compute the true root-mean-square (rms) value of complex input waveforms containing both ac and dc components. The AD536AKH offers high accuracy and wide bandwidth, making it suitable for a variety of applications requiring precise signal measurement.
The device is laser trimmed to minimize input and output offset voltages, ensuring high accuracy and waveform symmetry. It operates with a low quiescent current of 1.2 mA and can be powered from single or dual supplies ranging from 5 V to 36 V.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Maximum Error | ±0.2% of reading ± 2 mV | For AD536AKH model | |
| Bandwidth | 300 kHz (for signals > 100 mV) | ||
| Crest Factor Compensation | Up to 7 for 1% error | ||
| Supply Voltage | Dual Supply: ±18 V, Single Supply: +36 V | V | |
| Quiescent Current | 1.2 mA | mA | |
| Operating Temperature Range | −55°C to +125°C | °C | For AD536AS model, but applicable to AD536AKH in commercial range (0°C to 70°C) |
| dB Output Dynamic Range | 60 dB | dB | |
| Input Voltage | ±25 V peak | V | |
| Package Types | 14-lead DIP, 10-pin TO-100 metal header, 20-terminal LCC |
Key Features
- True RMS-to-DC Conversion: Directly computes the true rms value of complex input waveforms containing ac and dc components.
- Laser Trimming: Minimizes input and output offset voltages, optimizing waveform symmetry and accuracy.
- Wide Bandwidth: Extends measurement capability to 300 kHz with less than 3 dB errors for signal levels greater than 100 mV.
- Crest Factor Compensation: Allows measurements with 1% error at crest factors up to 7.
- Auxiliary dB Output: Provides a logarithmic output of the rms signal 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 supply levels from 5 V to 36 V.
- Input and Output Protection: Fully protected against overload voltages and short-circuit conditions.
Applications
The AD536AKH is suitable for various applications requiring precise measurement of signal levels, including:
- Remote Controllers and Battery-Powered Instruments: Due to its low power consumption.
- Industrial Automation: For measuring and monitoring complex signals in industrial environments.
- Aerospace and Defense: Where high accuracy and reliability are critical.
- Test and Measurement Equipment: For accurate rms measurements in various testing scenarios.
- Audio and Signal Processing: To measure and analyze audio and other complex signals.
Q & A
- What is the primary function of the AD536AKH?
The AD536AKH is a true rms-to-dc converter that computes the true root-mean-square value of complex input waveforms containing ac and dc components.
- What is the maximum error of the AD536AKH?
The maximum error is ±0.2% of reading ± 2 mV for the AD536AKH model.
- What is the bandwidth of the AD536AKH?
The device has a bandwidth of 300 kHz for signals greater than 100 mV.
- How does the crest factor compensation work?
The AD536AKH allows measurements with 1% error at crest factors up to 7.
- What is the dynamic range of the dB output?
The dB output has a dynamic range of 60 dB.
- What are the available package types for the AD536AKH?
The device is available in 14-lead DIP, 10-pin TO-100 metal header, and 20-terminal LCC packages.
- What is the operating temperature range of the AD536AKH?
The commercial temperature range is 0°C to 70°C, but the AD536AS model extends this range to −55°C to +125°C.
- How much quiescent current does the AD536AKH consume?
The device operates with a quiescent current of 1.2 mA.
- Can the AD536AKH be used with single or dual supplies?
Yes, it can operate with single or dual supplies ranging from 5 V to 36 V.
- Is the AD536AKH protected against overload and short-circuit conditions?
Yes, the input and output pins are fully protected against overload voltages and short-circuit conditions.
