SN65LVDT390DG4

Product Overview

• Category: Integrated Circuit
• Use: LVDT Signal Conditioner
• Characteristics: High precision, low power consumption
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Signal conditioning for Linear Variable Differential Transformers (LVDTs)
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 3 V to 5.5 V
• Operating Temperature Range: -40°C to +125°C
• Input Common-Mode Voltage Range: ±12 V
• Output Voltage Swing: ±10 V
• Quiescent Current: 1.2 mA
• Bandwidth: 200 kHz
• Gain Accuracy: ±0.1%

Pin Configuration

The SN65LVDT390DG4 has a total of 16 pins arranged as follows:

```

---

| | | 1 8 16| --|VCC OUTB GND|-- --|INB OUTA EN |-- --|INA REF NC |-- |_______________| ```

Functional Features

• LVDT signal conditioning: The SN65LVDT390DG4 is specifically designed to condition the output signals from Linear Variable Differential Transformers (LVDTs). It provides amplification, filtering, and linearization of the LVDT output signals.
• High precision: The IC offers high gain accuracy of ±0.1%, ensuring accurate measurement and control of LVDT outputs.
• Low power consumption: With a quiescent current of only 1.2 mA, the SN65LVDT390DG4 minimizes power consumption, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages: - High precision signal conditioning - Low power consumption - Wide operating temperature range

Disadvantages: - Limited input common-mode voltage range - Relatively low bandwidth compared to some alternatives

Working Principles

The SN65LVDT390DG4 operates by amplifying and filtering the output signals from LVDTs. It consists of an instrumentation amplifier that provides high gain and accuracy, a reference voltage generator for linearization, and output buffers for driving external loads. The IC is powered by a supply voltage in the range of 3 V to 5.5 V.

Detailed Application Field Plans

The SN65LVDT390DG4 is commonly used in various applications where precise measurement and control of LVDT outputs are required. Some specific application fields include:

1. Industrial automation: LVDTs are widely used in industrial automation systems for position sensing, level monitoring, and displacement measurement. The SN65LVDT390DG4 ensures accurate and reliable signal conditioning in such applications.
2. Robotics: LVDTs are utilized in robotic systems for feedback control of joint positions, end effector positioning, and object detection. The SN65LVDT390DG4 enables precise measurement and control in robotic applications.
3. Aerospace: LVDTs find extensive use in aerospace applications for position sensing in aircraft control surfaces, landing gear, and engine components. The SN65LVDT390DG4 ensures accurate signal conditioning in harsh environmental conditions.

Detailed and Complete Alternative Models

1. AD698: Analog Devices offers the AD698, which is a similar LVDT signal conditioner with high precision and low power consumption. It features a wider input common-mode voltage range and higher bandwidth compared to the SN65LVDT390DG4.
2. MAX1457: Maxim Integrated provides the MAX1457, another LVDT signal conditioner with high accuracy and low power consumption. It offers a wide supply voltage range and adjustable gain settings.

These alternative models provide similar functionality to the SN65LVDT390DG4 and can be considered based on specific application requirements.

Word count: 430 words