Overview
The AD536AKDZ, produced by Analog Devices Inc., is a complete monolithic integrated circuit designed for true rms-to-dc conversion. This device offers performance comparable or superior to that of hybrid or modular units, making it a robust solution for various measurement applications. The AD536AKDZ directly computes the true rms value of any complex input waveform containing ac and dc components, with a crest factor compensation scheme that allows measurements with 1% error at crest factors up to 7.
Key Specifications
| Specification | Value |
|---|---|
| Maximum Error | ±0.2% (AD536AK), ±0.5% (AD536AJ and AD536AS) |
| Bandwidth | 450 kHz (Vrms > 100 mV), 2 MHz (Vrms > 1 V) |
| Crest Factor | Up to 7 for 1% error |
| Supply Voltage | ±15 V (dual supply), +5 V to +36 V (single supply) |
| Quiescent Current | 1.2 mA |
| Temperature Range | 0°C to +70°C (commercial), -55°C to +125°C (extended range) |
| Package Types | 14-lead DIP, 10-pin TO-100, 20-terminal leadless ceramic chip carrier |
| dB Output Range | 60 dB |
| Input Voltage Range | Up to 7 Vrms |
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.
- Wide Bandwidth: Extends measurement capability to 300 kHz with less than 3 dB errors for signal levels greater than 100 mV.
- 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, suitable for remote controllers and battery-powered instruments.
- Single- or Dual-Supply Operation: Compatible with supply levels from 5 V to 36 V.
- High Accuracy: Laser trimmed for high accuracy and minimal input and output offset voltage.
- Input and Output Protection: Fully protected input and output pins, including short-circuit protection.
Applications
The AD536AKDZ is suitable for a wide range of applications, including:
- Power Management: Ideal for measuring power in various electrical systems.
- Remote Controllers: Well-suited for battery-powered instruments due to its low power consumption.
- Measurement Instruments: Used in instruments that require accurate rms measurements of ac and dc signals.
- Aerospace and Military: Available in extended temperature range versions, making it suitable for harsh environments.
Q & A
- What is the primary function of the AD536AKDZ?
The AD536AKDZ is a true rms-to-dc converter, which directly computes the true rms value of any complex input waveform containing ac and dc components.
- What is the maximum error of the AD536AKDZ?
The maximum error is ±0.2% for the AD536AK grade and ±0.5% for the AD536AJ and AD536AS grades.
- What is the bandwidth of the AD536AKDZ?
The device has a bandwidth of 450 kHz for signal levels greater than 100 mV and 2 MHz for signal levels greater than 1 V.
- What is the crest factor compensation of the AD536AKDZ?
The device allows measurements with 1% error at crest factors up to 7.
- What is the supply voltage range for the AD536AKDZ?
The device can operate with dual supplies of ±15 V or single supplies from +5 V to +36 V.
- What is the quiescent current of the AD536AKDZ?
The quiescent current is 1.2 mA.
- What are the temperature ranges for the AD536AKDZ?
The device is available for commercial temperature ranges (0°C to +70°C) and extended temperature ranges (-55°C to +125°C).
- What types of packages are available for the AD536AKDZ?
The device is available in 14-lead DIP, 10-pin TO-100, and 20-terminal leadless ceramic chip carrier packages.
- Does the AD536AKDZ have an auxiliary output?
Yes, it has an auxiliary dB output pin with a 60 dB dynamic range.
- Is the AD536AKDZ protected against input and output overloads?
Yes, the input and output pins are fully protected, including short-circuit protection.
