Overview
The TLC2272QDRG4 is a dual operational amplifier from Texas Instruments, part of the TLC227x family. These devices are known for their rail-to-rail output performance, which enhances the dynamic range in both single-supply and split-supply applications. The TLC2272 offers improved AC performance compared to existing CMOS operational amplifiers, with better noise, input offset voltage, and power dissipation. This makes them ideal for small-signal conditioning, particularly for high-impedance sources like piezoelectric transducers. The devices are also suitable for hand-held monitoring and remote-sensing applications due to their low power consumption.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Number of Channels | 2 | |
| Bandwidth | 2.2 MHz Typical | |
| Slew Rate | 3.6 V/μs Typical | |
| Input Offset Voltage | 950 μV Maximum at TA = 25°C | |
| Input Bias Current | 1 pA Typical | |
| Noise Voltage | 9 nV/√Hz at f = 1 kHz | |
| Common-Mode Input Voltage Range | Includes Negative Rail | |
| Supply Current | 2.4 mA to 3 mA | VO = 0 V, No Load, TA = 25°C |
| Operating Temperature Range | -40°C to 125°C | |
| Package Type | QFN (RG4) | |
| Pins | 14 |
Key Features
- Output Swing Includes Both Supply Rails
- 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
Applications
- Hand-held Monitoring Systems
- Remote-Sensing Applications
- Transducer Interfaces (e.g., piezoelectric transducers)
- Battery-Powered Applications
- White Goods (Refrigerators, Washing Machines)
- Analog-to-Digital Converter (ADC) Interfaces
Q & A
- What is the typical bandwidth of the TLC2272?
The typical bandwidth of the TLC2272 is 2.2 MHz.
- What is the slew rate of the TLC2272?
The slew rate of the TLC2272 is 3.6 V/μs typical.
- What is the input offset voltage of the TLC2272?
The maximum input offset voltage of the TLC2272 is 950 µV at TA = 25°C.
- What is the input bias current of the TLC2272?
The typical input bias current of the TLC2272 is 1 pA.
- What is the noise voltage of the TLC2272?
The noise voltage of the TLC2272 is 9 nV/√Hz at f = 1 kHz.
- Can the TLC2272 operate in both single-supply and split-supply configurations?
Yes, the TLC2272 is fully specified for both single-supply and split-supply operation.
- What is the common-mode input voltage range of the TLC2272?
The common-mode input voltage range of the TLC2272 includes the negative rail.
- What are some typical applications of the TLC2272?
Typical applications include hand-held monitoring systems, remote-sensing applications, transducer interfaces, and battery-powered applications.
- Is the TLC2272 available in automotive-grade packaging?
Yes, the TLC2272 is available in Q-Temp automotive-grade packaging.
- What is the operating temperature range of the TLC2272?
The operating temperature range of the TLC2272 is -40°C to 125°C.
