SN65ELT20DR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Signal transmission and amplification
• Characteristics: High-speed, low-power, differential line driver/receiver
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Translates and amplifies digital signals for long-distance transmission
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Supply Voltage Range: 3 V to 3.6 V
• Operating Temperature Range: -40°C to +85°C
• Data Rate: Up to 2.5 Gbps
• Number of Channels: 1
• Input Type: Differential
• Output Type: Differential
• Input Voltage Range: ±200 mV
• Output Voltage Range: ±800 mV
• Propagation Delay: 400 ps
• Rise/Fall Time: 100 ps

Pin Configuration

The SN65ELT20DR has a total of 8 pins arranged as follows:

```

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| | --| VCC GND |-- Pin 1: Power supply (3 V to 3.6 V) --| IN+ IN- |-- Pin 2: Differential input --| OUT+ OUT- |-- Pin 3: Differential output --| EN NC |-- Pin 4: Enable (active high), No Connection --| GND VCC |-- Pin 5: Ground --| NC EN |-- Pin 6: No Connection, Enable (active high) --| OUT- OUT+ |-- Pin 7: Differential output (inverted) --| IN- IN+ |-- Pin 8: Differential input (inverted) |___________|

```

Functional Features

• High-speed signal transmission and amplification
• Low-power consumption
• Differential signaling for noise immunity
• Enable pin for power management
• Wide input and output voltage range
• Small form factor package for space-constrained applications

Advantages and Disadvantages

Advantages

• High data rate capability (up to 2.5 Gbps)
• Low propagation delay and rise/fall time
• Excellent noise immunity due to differential signaling
• Flexible power supply range
• Compact package size for easy integration

Disadvantages

• Limited number of channels (only 1)
• Requires external components for complete signal conditioning
• Not suitable for applications requiring multiple independent channels

Working Principles

The SN65ELT20DR is designed to translate and amplify digital signals for long-distance transmission. It operates on a differential signaling scheme, where the input signal is transmitted as the voltage difference between two pins (IN+ and IN-). This differential signal is then amplified and converted back to a single-ended signal at the output pins (OUT+ and OUT-).

The enable pin (EN) allows for power management by enabling or disabling the device. When the enable pin is high, the IC is active and performs signal translation and amplification. When the enable pin is low, the IC goes into a low-power standby mode.

Detailed Application Field Plans

The SN65ELT20DR is commonly used in various applications that require high-speed signal transmission over long distances. Some of the typical application fields include:

1. Telecommunications: Used in fiber optic communication systems to transmit digital signals between network equipment.
2. Data Centers: Employed in high-speed data transmission within server racks and between different data center facilities.
3. Industrial Automation: Integrated into control systems for reliable and fast communication between sensors, actuators, and controllers.
4. Automotive Electronics: Utilized in automotive infotainment systems, advanced driver-assistance systems (ADAS), and in-vehicle networks.
5. Medical Equipment: Incorporated into medical imaging devices, patient monitoring systems, and other medical equipment requiring high-speed data transfer.

Detailed and Complete Alternative Models

1. SN65ELT22DR: Similar to SN65ELT20DR but with two channels for independent differential signal transmission.
2. SN65ELT23DR: Enhanced version with higher data rate capability (up to 3.125 Gbps) and lower propagation delay.
3. SN65ELT24DR: Four-channel variant for applications requiring multiple independent differential signal paths.

These alternative models offer different channel configurations and improved performance characteristics, providing flexibility for various application requirements.

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