Overview
The TLC2272QDG4 is a dual operational amplifier from Texas Instruments, part of the TLC227x family. These devices are known for their advanced LinCMOS technology, offering high performance and low power consumption. The TLC2272QDG4 is particularly notable for its rail-to-rail output performance, which enhances the dynamic range in both single-supply and split-supply applications. It is well-suited for small-signal conditioning, especially with high-impedance sources such as piezoelectric transducers, and is ideal for battery-powered and hand-held monitoring systems due to its micropower dissipation levels.
Key Specifications
| Parameter | Typical | Minimum | Maximum | Unit |
|---|---|---|---|---|
| Number of Channels | 2 | |||
| Gain Bandwidth Product (GBW) | 2.2 MHz | MHz | ||
| Slew Rate | 3.6 V/μs | V/μs | ||
| Input Offset Voltage (VIO) at 25°C | 950 μV | 300 μV | 2500 μV | μV |
| Input Bias Current | 1 pA | 60 pA | pA | |
| Noise Voltage at 1 kHz | 9 nV/√Hz | nV/√Hz | ||
| Operating Temperature Range | -40°C | 125°C | °C | |
| Supply Voltage Range | 4.4 V | 16 V | V | |
| Package Type | TSSOP (PW) | |||
| Pins | 8 |
Key Features
- Rail-to-rail output performance for increased dynamic range in single- or split-supply applications.
- Low noise: 9 nV/√Hz typical at f = 1 kHz.
- Low input bias current: 1 pA typical.
- Fully specified for both single-supply and split-supply operation.
- Common-mode input voltage range includes negative rail.
- High gain bandwidth: 2.2 MHz typical.
- High slew rate: 3.6 V/μs typical.
- Low input offset voltage: 950 μV maximum at TA = 25°C.
- Macromodel included.
- Performance upgrades for the TLC272 and TLC274.
- Available in Q-Temp Automotive grade.
Applications
- Hand-held monitoring systems.
- Battery-powered applications.
- Transducer interfaces, especially for high-impedance sources like piezoelectric transducers.
- White goods (refrigerators, washing machines).
- Configuration control and print support.
Q & A
- What is the typical gain bandwidth product of the TLC2272QDG4? The typical gain bandwidth product is 2.2 MHz.
- What is the slew rate of the TLC2272QDG4? The slew rate is 3.6 V/μs typical.
- What is the input offset voltage at 25°C for the TLC2272QDG4? The input offset voltage is 950 μV maximum at 25°C.
- What is the input bias current of the TLC2272QDG4? The input bias current is 1 pA typical.
- What is the noise voltage at 1 kHz for the TLC2272QDG4? The noise voltage is 9 nV/√Hz typical at 1 kHz.
- What are the operating temperature ranges for the TLC2272QDG4? The operating temperature range is from -40°C to 125°C.
- What is the supply voltage range for the TLC2272QDG4? The supply voltage range is from 4.4 V to 16 V.
- In what package type is the TLC2272QDG4 available? The TLC2272QDG4 is available in an 8-pin TSSOP (PW) package.
- What are some common applications of the TLC2272QDG4? Common applications include hand-held monitoring systems, battery-powered applications, transducer interfaces, and white goods.
- Is the TLC2272QDG4 suitable for high-impedance sources? Yes, it is excellent for small-signal conditioning for high-impedance sources such as piezoelectric transducers.
