PGA204AUE4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Amplifier
• Characteristics: High precision, low noise, wide bandwidth
• Package: 8-pin SOIC (Small Outline Integrated Circuit)
• Essence: Precision Programmable Gain Amplifier
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: ±2.25V to ±18V
• Gain Range: 1 to 1000
• Bandwidth: 10MHz
• Input Offset Voltage: ±150µV
• Input Bias Current: ±50nA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The PGA204AUE4 has the following pin configuration:

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| | --| V+ V- |-- --| IN G |-- --| OUT REF|-- --| RG NC|-- --| AGND DGND|-- |___________| ```

1. V+: Positive supply voltage
2. V-: Negative supply voltage
3. IN: Signal input
4. G: Gain control input
5. OUT: Amplified signal output
6. REF: Reference voltage output
7. RG: Gain resistor connection (not internally connected)
8. AGND: Analog ground
9. DGND: Digital ground

Functional Features

• Programmable gain allows flexibility in amplification levels
• High precision enables accurate signal amplification
• Low noise ensures minimal interference with the signal
• Wide bandwidth allows for amplification of a broad range of frequencies

Advantages and Disadvantages

Advantages: - Precise amplification of signals - Low noise performance - Wide bandwidth for versatile applications

Disadvantages: - Requires external gain resistor for operation - Limited to a maximum gain of 1000

Working Principles

The PGA204AUE4 is a precision programmable gain amplifier designed to amplify analog signals with high accuracy. It utilizes an external gain resistor (RG) to set the desired amplification level. The gain control input (G) allows for easy adjustment of the gain, providing flexibility in signal amplification.

The amplifier operates by taking the input signal (IN) and amplifying it according to the selected gain setting. The amplified signal is then available at the output pin (OUT). Additionally, the PGA204AUE4 provides a reference voltage output (REF) that can be used for other circuitry.

Detailed Application Field Plans

The PGA204AUE4 is commonly used in various applications where precise signal amplification is required. Some of the typical application fields include:

1. Medical Equipment: Used in medical devices such as ECG monitors and ultrasound machines to amplify and process biological signals.
2. Industrial Automation: Employed in industrial control systems to amplify sensor signals for accurate measurement and control.
3. Audio Systems: Integrated into audio equipment like mixers and amplifiers to enhance audio signals with high fidelity.
4. Test and Measurement: Utilized in test equipment for amplifying and analyzing signals during electronic testing and measurements.
5. Communication Systems: Incorporated in communication devices to amplify weak signals for improved transmission and reception.

Detailed and Complete Alternative Models

1. AD620: Precision Instrumentation Amplifier with Programmable Gain
2. INA128: Low Noise, Low Power Instrumentation Amplifier
3. LT1167: Precision High-Side Current Sense Amplifier
4. MCP6V01: Zero-Drift Operational Amplifier with Programmable Gain
5. MAX4466: Low-Noise, Microphone Preamplifier with Gain Control

These alternative models offer similar functionality and can be considered as alternatives to the PGA204AUE4 in various applications.

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