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EL817: Pinout, Specifications, and Datasheet

The EL817 series, combines infrared-emitting diodes and phototransistor detectors to form components in optocouplers. This article delves into the unique properties, wiring methods, applications, and detailed specifications of the EL817 series, providing a comprehensive guide you and interested in its versatile capabilities and technological significance.

Catalog

Overview of the EL817 Amplifier

The EL817 is a finely-tuned amplifier crafted for low-power instrumentation, smoothly functioning within a voltage scope of +2.4V to +5.5V. It gracefully handles rail-to-rail signals with low power draw, making it highly suitable for portable, battery-driven devices. Its excellent common-mode rejection ratio enhances signal precision by minimizing interference. The EL817 masterfully manages signals throughout its range, maintaining efficiency cherished in power-sensitive applications. In portable electronics, conserving every milliamp matters deeply, ensuring both energy use and signal integrity are optimized. This is invaluable in medical and precision measuring environments.

The feedback terminals of the EL817 offer remarkable adaptability, managing any output offset, including ground. Such flexibility allows to refine output characteristics to match diverse application needs, aiding precision in instrumentation and revealing the amplifier's broad adaptability. Employing bipolar input devices, the EL817 achieves exceptional low-noise performance with a gain of at least 100. This design choice bolsters the clarity and quality of amplified signals, an attractive feature in settings demanding utmost accuracy like laboratories. Its design simplicity, free from pull-up or pull-down resistors, ensures smooth operation with minimal current use.

The EL817's blend of efficiency and reliability has made it popular across various industrial and electronics fields. In creating wearable health monitors, its low power usage and accurate signal processing for prolonged device use without frequent recharges. Similarly, in remote sensing tech, its robust performance enables extended deployment in tough environments.

EL817 Pin Configuration

Pin Number	Pin Name	Equivalent Circuit	Description
1	DNC		Do Not Connect. Internal connection must be left floating.
2	IN-	Circuit 1A	High impedance input terminals. The EL817 input circuit is shown in Circuit 1A. To avoid offset drift, it is recommended that the terminals are not overdriven beyond 1V and the input current must never exceed 5mA.
3	IN+	Circuit 1A	High impedance input terminals. The EL817 input circuit is shown in Circuit 1A.
4	V-	Circuit 3	Negative supply terminal.
5	FB-	Circuit 1A	High impedance feedback terminals. The EL817 input circuit is shown in Circuit 1A.
6	VOUT	Circuit 2	Output voltage.
7	V+	Circuit 3	Positive supply terminal.
8	FB+	Circuit 1A	High impedance feedback terminals. The EL817 input circuit is shown in Circuit 1A. To avoid offset drift, it is recommended that the terminals are not overdriven beyond 1V and the input current must never exceed 5mA.

Equivalent Circuit

Features of EL817

Efficiency in Power Usage and Supply Current

The EL817 operates effectively with a low supply current of 95μA. This aspect holds appeal in scenarios where conserving energy contributes to prolonged device functionality and reduced operational expenditures in battery-powered gadgets. Meanwhile, its role in optimizing resource usage is noteworthy for maintaining device efficiency.

Performance in DC and AC Capabilities

Exhibiting remarkable DC and AC characteristics, the EL817 strives to minimize offset voltages, thereby boosting signal precision. This degree of accuracy resonates with those who value high fidelity, as seen in audio engineering and precision instrumentation. Others prioritize these components for their role in upholding consistent reliability and performance standards.

Adaptability via Voltage Versatility

Empowered by rail-to-rail voltage capabilities, the EL817 shines in single-supply operations, bringing a dynamic edge to its adaptability. This trait serves a broad spectrum of circuit designs, including analog computing and communications technology. It acts as a springboard for inventive engineering solutions in intricate system architectures.

Commitment to Environmental Standards

The EL817 adheres to RoHS guidelines, demonstrating a commitment to environmental responsibility by minimizing hazardous materials in its design. Such eco-friendly attributes connect with global sustainability aspirations and simplify compliance with regulatory frameworks, supporting broader corporate social responsibility efforts.

Input and Output Optimization

With a comprehensive rail-to-rail input voltage range and complete output swing, the EL817 excels in signal range optimization. These characteristics are instrumental in advancing the performance of analog circuits and frequently exploited across an array of technologies to boost effectiveness and precision.

EL817 Footprint and CAD Model

EL817 Specifications

Technical specifications, features, and parameters of the EL8170, including components comparable to the EL8170FSZ.

Type	Parameter
Factory Lead Time	33 Weeks
Package / Case	8-SOIC (0.154, 3.90mm Width)
Operating Temperature	-40°C~125°C
JESD-609 Code	e3
Moisture Sensitivity Level (MSL)	3 (168 Hours)
ECCN Code	EAR99
Terminal Position	DUAL
Peak Reflow Temperature (Cel)	NOT SPECIFIED
Supply Voltage	5V
Base Part Number	EL8170
JESD-30 Code	R-PDSO-G8
Number of Circuits	1
Mounting Type	Surface Mount
Surface Mount	YES
Packaging	Tube
Part Status	Active
Number of Terminations	8
Terminal Finish	Matte Tin (Sn) - annealed
Terminal Form	GULL WING
Number of Functions	1
Time@Peak Reflow Temperature-Max (s)	NOT SPECIFIED
Pin Count	8
Output Type	Rail-to-Rail
Current - Supply	65μA
Slew Rate	0.55V/µs
Current - Input Bias	700pA
Bandwidth	192 kHz
Supply Voltage Limit-Max	5.75V
Input Offset Current-Max (IIO)	0.003μA
Length	4.9mm
Amplifier Type	Instrumentation
Voltage - Supply, Single/Dual (±)	2.4V-5V
Average Bias Current-Max (IIB)	0.004μA
Voltage - Input Offset	50μV
Common-mode Reject Ratio-Min	85 dB
RoHS Status	ROHS3 Compliant

Voltage Measurement Circuit in EL817

Applications of EL817

Power Systems

EL817 is frequently used in battery and solar power systems, where managing power efficiency requires delicacy due to the nuanced nature of renewable energy sources. In practical scenarios, it aids in power conversion and stabilization, facilitating reliable energy distribution. This component refines the circuitry to manage energy supply fluctuations, enhancing system performance in nuanced ways.

Strain Gauge Interfaces

Within strain gauge interfaces, the EL817 ensures precision and reliability, contributing to accurate signal transmission for applications demanding high sensitivity and precise measurements. Acting as an isolator, it eliminates noise interference, preserving data integrity. Others depend on its stable performance in environments where data collection is cherished.

Current Monitors

For current monitoring, EL817 is integral to accurate current measurement and regulation, promoting system health and safety. Its incorporation in monitoring systems enables effective feedback loops, allowing adjustments to system parameters. This adaptability shines in industrial contexts where continuous monitoring and adjustment support dynamic operational needs.

Thermocouple Amplifiers

In thermocouple amplifiers, EL817 enhances signal amplification for precise temperature readings. By reducing potential transmission errors, it maintains the required precision in industries like manufacturing. This application highlights its utility in sustaining operational accuracy, with reaping the benefits of its reliable performance under diverse conditions.

Packaging for EL817

EL817 Manufacturer Information

Renesas Electronics has positioned itself at the forefront of developing microcontroller and power SoC products. Their innovative solutions aim to enhance both the performance and efficiency of embedded systems, in today's modern tech landscape. Beyond mere mechanics, these innovations spark substantial enhancements in energy efficiency and processing speed, catering to the increasing demand for sophistication in technology. Renesas' semiconductors play a transformative role in how everyday technology is utilized. With a strong emphasis on centric innovation, they enable devices to become smarter and more responsive to personal preferences and demands. Such ventures emphasize the significance of technology that evolves in pace with desires and lifestyle transitions.Merging industry expertise and keen insights, Renesas not only propels technological progress but also fosters a nuanced understanding of the delicate harmony between pioneering innovation and practical application.

Datasheet PDF

EL8170FSZ Datasheets:

Label Change-All Devices 01/Dec/2022.pdf

Alternate Manufacturing Site 05/Feb/2014.pdf

Mult Dev EOL 18/Dec/2020.pdf

Frequently Asked Questions [FAQ]

1. How to connect EL817 optical lotus to 12V power supply?

To connect the EL817 optocoupler with a 12V power supply smoothly, ensure that the signal inputs and outputs are assigned to the correct pins. Employing a common-emitter circuit configuration can improve both its performance and stability. This setup is favored due to its straightforward nature and efficiency, mirroring best practices in the field of electronic circuit design.

2. What is the difference between EL817 optocoupler and MOC3063 optocoupler? Is it interchangeable?

The EL817 and MOC3063 optocouplers differ in their internal coupling, affecting where they perform best. The EL817 is designed for direct current (DC) applications, while the MOC3063 is suited for alternating current (AC) control. These distinctions signify that they cannot be used interchangeably. Recognizing the specific context of use avoids errors, paralleling the concept of selecting the right tool for the task at hand.

3. What is the difference between EL817 and PC817?

The EL817 and PC817 optocouplers mainly differ by manufacturer, influencing aspects like availability and cost without changing their functional equivalency in most scenarios. This resemblance is much like how different brands can offer interchangeable parts, maintaining the efficacy of their intended use.