AD536AKD

Product Overview

• Category: Integrated Circuit (IC)
• Use: Analog Devices' AD536AKD is a precision, true RMS-to-DC converter IC. It accurately computes the root mean square (RMS) value of an input AC signal and provides a corresponding DC output voltage.
• Characteristics:
  • High accuracy and linearity
  • Wide frequency range
  • Low power consumption
  • Small form factor
• Package: AD536AKD is available in a 14-pin ceramic dual in-line package (CDIP).
• Essence: The AD536AKD is designed to provide accurate RMS-to-DC conversion for various applications requiring precise measurement of AC signals.
• Packaging/Quantity: The AD536AKD is typically sold in reels or tubes containing multiple units.

Specifications

• Supply Voltage Range: ±5V to ±18V
• Input Frequency Range: 10Hz to 1MHz
• Input Signal Amplitude Range: 100mV to 3Vrms
• Output Voltage Range: 0V to +2.5V
• Temperature Range: -40°C to +85°C

Pin Configuration

The AD536AKD features the following pin configuration:

```

---

| | --| V+ V- |-- --| IN GND |-- --| OUT NC |-- --| REF NC |-- --| VREF NC |-- --| VLOG NC |-- --| VLOG NC |-- --| VLOG NC |-- --| VLOG NC |-- --| VLOG NC |-- --| VLOG NC |-- --| VLOG NC |-- --| VLOG NC |-- --| VLOG NC |-- |___________| ```

Functional Features

• Accurate RMS-to-DC conversion
• True logarithmic compression
• Low distortion and noise
• Wide dynamic range
• High input impedance
• Built-in voltage reference

Advantages and Disadvantages

Advantages: - High accuracy and linearity - Wide frequency range - Low power consumption - Compact size - Built-in voltage reference for convenience

Disadvantages: - Limited output voltage range (0V to +2.5V) - Requires external components for specific applications

Working Principles

The AD536AKD utilizes a precision rectifier, logarithmic amplifier, and an averaging circuit to accurately compute the RMS value of an input AC signal. It employs a true logarithmic compression technique to provide a linear response over a wide dynamic range.

Detailed Application Field Plans

The AD536AKD finds application in various fields where accurate RMS-to-DC conversion is required. Some common application areas include:

1. Power measurement and monitoring systems
2. Audio equipment and sound level meters
3. Industrial automation and control systems
4. Instrumentation and test equipment
5. Medical devices and diagnostics

Alternative Models

For users seeking alternative options, the following models can be considered:

1. AD736 - True RMS-to-DC converter with wider input voltage range
2. AD637 - Precision RMS-to-DC converter with higher accuracy
3. AD538 - RMS-to-DC converter with built-in waveform generator

These models offer similar functionality but may have different specifications or package options.

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