REF194ESZ

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Reference

Characteristics: - High precision voltage reference - Low temperature coefficient - Wide operating temperature range - Low output noise - Low dropout voltage - High output current capability

Package: SOIC-8

Essence: The REF194ESZ is a voltage reference IC that provides a stable and accurate voltage output for various electronic applications.

Packaging/Quantity: The REF194ESZ is typically sold in reels of 250 units.

Specifications

• Output Voltage: 2.5V
• Initial Accuracy: ±0.1%
• Temperature Coefficient: 10ppm/°C
• Operating Temperature Range: -40°C to +125°C
• Dropout Voltage: 200mV
• Output Current: 15mA

Pin Configuration

The REF194ESZ has the following pin configuration:

```

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| | --|REF |-- VOUT --|IN | --|GND | --|TRIM| |____| ```

Functional Features

• High precision voltage reference with low initial accuracy and temperature coefficient.
• Stable output voltage over a wide temperature range.
• Low dropout voltage allows operation with low input voltages.
• High output current capability enables driving multiple loads.
• Trim pin for fine-tuning the output voltage if required.

Advantages

• Provides a stable and accurate voltage reference for precise circuit operation.
• Low temperature coefficient ensures minimal output voltage drift with temperature changes.
• Wide operating temperature range makes it suitable for various environmental conditions.
• Low output noise minimizes interference with other components in the circuit.
• Low dropout voltage allows efficient operation even with low input voltages.
• High output current capability enables driving multiple loads without additional amplification.

Disadvantages

• Limited output voltage options (only 2.5V in the case of REF194ESZ).
• Requires external components for proper operation and stability.
• Relatively higher cost compared to basic voltage reference solutions.

Working Principles

The REF194ESZ utilizes a bandgap voltage reference circuit to generate a stable output voltage. It compensates for temperature variations by using a combination of bipolar and CMOS technologies. The internal trimming capability allows fine-tuning of the output voltage if required.

Detailed Application Field Plans

The REF194ESZ is commonly used in various applications, including:

1. Precision analog-to-digital converters (ADCs)
2. Digital-to-analog converters (DACs)
3. Voltage regulators
4. Power management circuits
5. Sensor calibration circuits
6. Test and measurement equipment
7. Industrial control systems

Detailed and Complete Alternative Models

1. REF193ESZ: Similar to REF194ESZ but with a different output voltage (1.25V).
2. REF195ESZ: Similar to REF194ESZ but with a different output voltage (5.0V).
3. REF196ESZ: Similar to REF194ESZ but with a different output voltage (10.0V).
4. REF197ESZ: Similar to REF194ESZ but with a different output voltage (15.0V).

These alternative models provide different output voltage options to suit specific application requirements.

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