The TDA2822 is a dual low-power audio amplifier in an 8-pin plastic dual in-line package. This IC comes with features like low crossover distortion, and low quiescent current, and the supply voltage range of this IC is 3V to 15V.
TDA2822 Pinout Configuration
|
Pin Number |
Pin Name |
Description |
|
1,3 |
Output |
Provides the amplified Audio output |
|
5,8 |
Inverting Input (IN-) |
The Inverting Pin of an amplifier is normally grounded |
|
6,7 |
Non-Inverting Input (IN+) |
The Non-Inverting pin is provided with the audio signal |
|
4 |
Vcc- |
Connected to the negative supply rail |
|
2 |
Vcc+ |
Connected to Positive Supply Rail |
TDA2822 Audio amplifier features and specifications:
- Supply Voltage: 3-15V
- Output Power: 3.2 W
- Audio – Load Impedance: 8 Ohms
- Gain: 39 dB
- Operating Supply Current: 12 mA
- Ib – Input Bias Current: 0.1 uA
- PSRR – Power Supply Rejection Ratio: 40 dB
- Available in 8-pin DIP package
Note: Complete Technical Details can be found at the TDA2822 datasheet given at the end of this page.
Where to use TDA2822 Amplifier IC
The TDA2822 is a Dual Audio Amplifier IC, meaning it has two Op-Amps inside its package, and they are commonly used for audio amplification because of their wide bandwidth gain. The two outputs can deliver 250 milliwatts output power. This IC can be used in portable audio systems, preamplifiers, hearing aid mini radios, headphone amplifiers, etc.
So if you are looking for a dual-package Operational amplifier IC with high gain, and wide bandwidth for audio amplification, then this IC might be the right choice for you.
How to use TDA2822 Amplifier
An application circuit from the TDA2822 datasheet is given below
The left load is connected to output pin 1 of the IC through electrolytic capacitor C4, and the right load is connected to output pin 3 through electrolytic capacitor C5. The Inverting Input Pins (5 and 8) are connected to the ground via electrolytic capacitors. Non-Inverting Input Pins (7 and 6) are connected to input1 and input2. Pin 2 is connected to the DC supply and pin 4 is connected to the ground. Electrolytic capacitor C3 connected across VCC and ground, works as a filter capacitor.
Applications of TDA2822 Amplifier
- AM and FM Radio amplifiers
- Portable music players
- Power Audio amplifiers
- Wien bridge oscillator
- Power Amplifiers
- Audio boosters
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