REF195ESZ

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Reference

Characteristics: - High precision voltage reference - Low temperature coefficient - Low dropout voltage - Wide operating temperature range

Package: SOIC-8

Essence: REF195ESZ is a voltage reference IC that provides a stable and accurate voltage output.

Packaging/Quantity: The REF195ESZ is available in a standard SOIC-8 package. It is typically sold in reels of 2500 units.

Specifications

• Output Voltage Range: 1.225V to 5.5V
• Initial Accuracy: ±0.2%
• Temperature Coefficient: 50ppm/°C
• Dropout Voltage: 200mV
• Operating Temperature Range: -40°C to +125°C
• Supply Voltage Range: 2.7V to 30V
• Quiescent Current: 80µA

Detailed Pin Configuration

The REF195ESZ has the following pin configuration:

```

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| | --| VOUT GND|-- Pin 1: Ground (GND) --| NC VOUT|-- Pin 2: Voltage Output (VOUT) --| NC VIN|-- Pin 3: Voltage Input (VIN) --| NC NC|-- Pin 4: Not Connected (NC) --| NC NC|-- Pin 5: Not Connected (NC) --| NC NC|-- Pin 6: Not Connected (NC) --| NC NC|-- Pin 7: Not Connected (NC) --| NC VDD|-- Pin 8: Supply Voltage (VDD) |___________| ```

Functional Features

• High precision: The REF195ESZ offers excellent initial accuracy, ensuring a stable and reliable voltage reference.
• Low temperature coefficient: With a low temperature coefficient of 50ppm/°C, the REF195ESZ maintains its accuracy over a wide temperature range.
• Low dropout voltage: The low dropout voltage of 200mV allows for efficient operation even with low input voltages.
• Wide operating temperature range: The REF195ESZ can operate in temperatures ranging from -40°C to +125°C, making it suitable for various environments.

Advantages and Disadvantages

Advantages: - High precision and accuracy - Low temperature coefficient ensures stability - Low dropout voltage for efficient operation - Wide operating temperature range for versatility

Disadvantages: - Limited output voltage range (1.225V to 5.5V) - Higher initial cost compared to some alternatives

Working Principles

The REF195ESZ is based on a bandgap voltage reference circuit. It utilizes a combination of bipolar and CMOS technologies to generate a stable voltage output. The internal circuitry compensates for temperature variations, ensuring accurate voltage references across different operating conditions.

Detailed Application Field Plans

The REF195ESZ is commonly used in applications that require precise voltage references, such as: - Analog-to-Digital Converters (ADCs) - Digital-to-Analog Converters (DACs) - Voltage regulators - Precision instrumentation - Sensor calibration

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the REF195ESZ include: - REF192ESZ: Similar specifications and package, but with a lower initial accuracy of ±0.5%. - REF198ESZ: Higher initial accuracy of ±0.1%, but with a slightly higher temperature coefficient of 75ppm/°C. - LT6654BIS6-2.5: Offers a wider output voltage range of 2.5V to 5.5V, but with a higher initial accuracy of ±0.25%.

These alternative models can be considered based on specific application requirements and cost considerations.

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