AD737KRZ-RL

Product Overview

Category

AD737KRZ-RL belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic devices for signal conditioning and measurement applications.

Characteristics

• AD737KRZ-RL is a precision, low-power, true RMS-to-DC converter.
• It provides an accurate representation of the average value of any input waveform.
• The device operates from a single power supply and can measure signals with frequencies up to 500 kHz.
• It offers excellent temperature stability and linearity over a wide dynamic range.

Package

AD737KRZ-RL comes in a small outline integrated circuit (SOIC) package.

Essence

The essence of AD737KRZ-RL lies in its ability to accurately convert AC signals to DC signals, providing valuable information about the input waveform.

Packaging/Quantity

AD737KRZ-RL is typically sold in reels containing a quantity of 250 units per reel.

Specifications

• Supply Voltage: 2.7V to 36V
• Input Frequency Range: DC to 500 kHz
• Total Harmonic Distortion: <0.1% at 10 kHz
• Temperature Range: -40°C to +125°C
• Conversion Accuracy: ±0.3% (typical)

Detailed Pin Configuration

AD737KRZ-RL has eight pins arranged as follows:

1. VPOS: Positive power supply pin
2. VIN+: Positive input voltage pin
3. VIN-: Negative input voltage pin
4. GND: Ground pin
5. VOUT: Output voltage pin
6. NC: No connection pin
7. VREF: Reference voltage pin
8. VNEG: Negative power supply pin

Functional Features

• True RMS-to-DC conversion: AD737KRZ-RL accurately calculates the root mean square (RMS) value of an input AC signal and converts it to a DC voltage.
• Low power consumption: The device operates with low power requirements, making it suitable for battery-powered applications.
• Wide frequency range: AD737KRZ-RL can handle input signals with frequencies ranging from DC to 500 kHz.
• High accuracy: It provides precise measurements with a conversion accuracy of ±0.3%.

Advantages and Disadvantages

Advantages

• Accurate RMS-to-DC conversion
• Low power consumption
• Wide frequency range
• High conversion accuracy
• Compact SOIC package

Disadvantages

• Limited maximum supply voltage range (2.7V to 36V)
• Requires external components for proper operation

Working Principles

AD737KRZ-RL utilizes an internal multiplier and a logarithmic amplifier to calculate the true RMS value of the input AC signal. The logarithmic amplifier converts the input signal into a linear-in-dB form, which is then multiplied by a constant factor to obtain the RMS value. The resulting DC voltage represents the average value of the input waveform.

Detailed Application Field Plans

AD737KRZ-RL finds application in various fields, including: 1. Power monitoring systems 2. Audio equipment 3. Industrial automation 4. Energy management systems 5. Test and measurement instruments

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to AD737KRZ-RL are: 1. AD736: True RMS-to-DC converter with higher accuracy and wider temperature range. 2. AD8436: RMS-to-DC converter with integrated gain and phase matching capabilities. 3. LTC1968: Precision RMS-to-DC converter with built-in temperature compensation.

These alternative models provide options for different performance requirements and specific application needs.

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