VCA821IDR

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VCA821IDR

+Nomenclature

IC VARIABLE GAIN 1 CIRC 14SOIC

  • FabricantTexas Instruments

  • Pièce fabricant #VCA821IDR

  • En stock2730

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Spécifications

Attribut Valeur
Part Status Active
Amplifier Type Variable Gain
Number of Circuits 1
Slew Rate 2500V/µs
Current - Input Bias 19 µA
Voltage - Input Offset 4 mV
Supply Current 34mA
Current - Output / Channel 90 mA
Voltage - Supply Span (Min) 7 V
Voltage - Supply Span (Max) 12 V
Operating Temperature -40°C ~ 85°C
Mounting Type Surface Mount
Package / Case 14-SOIC (0.154", 3.90mm Width)
Supplier Device Package 14-SOIC
Base Product Number VCA821
-3 dB Bandwidth 710 MHz

Présentation

Description

The VCA821IDR is a versatile, high-performance analog front-end designed for audio and signal processing applications. It features a low-noise amplifier and variable gain control, making it suitable for a range of applications, including professional audio equipment, communication systems, and sensor interfacing. The device operates over a wide frequency range, allowing it to accurately capture and amplify weak signals while maintaining signal integrity.
Key specifications include low total harmonic distortion (THD), low noise figure, and fast response times, enabling high-quality signal processing. The VCA821IDR also supports various gain settings, which can be controlled through an external voltage, providing flexibility in different scenarios.
In summary, the VCA821IDR is an ideal choice for developers seeking an efficient and effective solution for audio and signal amplification needs, ensuring excellent performance in demanding applications.

Equivalent

The VCA821IDR is a variable gain amplifier from Texas Instruments. Equivalent products include the AD8336 from Analog Devices, the MAX4465 from Maxim Integrated, and the LTC5530 from Analog Devices. These alternatives offer similar functionality in variable gain amplification, though specifications such as frequency response and gain range may vary. Always check datasheets for detailed performance comparisons.

Features

The VCA821IDR is a high-performance variable gain amplifier (VGA) designed for a variety of audio and RF applications. Key features include:
1. Wide Gain Range: Offers a programmable gain range, allowing for flexibility in signal amplification.
2. Low Noise: Designed to minimize noise, making it suitable for high fidelity audio applications.
3. High Linearity: Ensures good linearity over a wide dynamic range, essential for accurate signal processing.
4. Single Supply Operation: Operates from a single power supply, simplifying integration into circuits.
5. Temperature Stability: Provides stable performance across varying temperatures, enhancing reliability.
6. Low Distortion: Maintains low total harmonic distortion (THD) for clean signal amplification.
7. Small Package Size: Available in a compact package, facilitating space-efficient designs.
8. Wide Frequency Response: Supports a broad frequency range, making it versatile for different applications.
These features make the VCA821IDR ideal for applications in audio processing, instrumentation, and communication systems.

Pinout

The VCA821IDR is an integrated circuit that functions as a voltage-controlled amplifier (VCA). It features a total of 8 pins. The primary functions of these pins include:
1. VIN+ (Pin 1): Positive input for the audio signal.
2. VIN- (Pin 2): Negative input for the audio signal.
3. VCA OUT (Pin 3): Output for the amplified signal.
4. VREF (Pin 4): Reference voltage for gain control.
5. GND (Pin 5): Ground connection.
6. VC (Pin 6): Control voltage input used to adjust gain.
7. VCC (Pin 7): Supply voltage input.
8. SHDN (Pin 8): Shutdown control pin to enable or disable the device.
This device is commonly used in audio applications for automatic gain control and signal processing.

Manufacturer

The VCA821IDR is manufactured by Texas Instruments (TI), a well-known semiconductor company based in the United States. Texas Instruments specializes in designing and manufacturing a broad range of electronics, including analog and embedded processing products. Established in 1930, TI is recognized for its innovations in analog technology, digital signal processing, and microcontrollers, serving various sectors such as automotive, industrial, communications, and consumer electronics. The VCA821IDR is a voltage-controlled amplifier, an integral component used in various applications including audio processing, signal conditioning, and telecommunications. Texas Instruments is committed to advancing technology and offers extensive support and resources for engineers and developers in the electronics industry.

Application

The VCA821IDR is a high-performance, low-noise, variable gain amplifier (VGA) primarily used in applications such as video processing, audio amplification, and signal conditioning. Its key application areas include medical imaging systems, telecommunications, radar, and various consumer electronics. The device is suitable for enhancing the quality of analog signals in systems requiring precise gain control and low distortion. Additionally, it is utilized in instrumentation and measurement systems where accurate signal amplification is crucial.

Package

The VCA821IDR is available in a TSSOP (Thin Shrink Small Outline Package) format. This package type typically features a compact design suitable for surface-mounted applications, with leads on two opposite sides.

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