Overview
The L272D is a monolithic integrated circuit produced by STMicroelectronics, designed for use as a power operational amplifier. It is available in Powerdip, Minidip, and SO-16 packages. This amplifier is suited for a wide range of applications, including servo amplifiers, power supplies, compact disc players, and video recorders. The L272D offers high gain and high output power capability, making it an excellent choice for operational amplifier/power booster combinations.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (Vs) | 4 to 28 | V |
| Input Voltage (Vi) | ± Vs | V |
| Differential Input Voltage | ± Vs | V |
| DC Output Current (Io) | 1 A | A |
| Peak Output Current (non-repetitive) | 1.5 A | A |
| Power Dissipation at Tamb = 80°C (L272), Tamb = 50°C (L272M), Tcase = 90 °C (L272D) | 1.2 to 5 W | W |
| Operating Temperature Range | -40 to 85 °C | °C |
| Quiescent Drain Current | 8 to 12 mA | mA |
| Input Bias Current | 0.3 to 2.5 µA | µA |
| Input Offset Voltage | 15 to 60 mV | mV |
| Slew Rate | 1 V/µs | V/µs |
| Gain-bandwidth Product | 350 kHz | kHz |
| Input Resistance | 500 kΩ | kΩ |
| Common Mode Rejection Ratio | 60 to 75 dB | dB |
| Supply Voltage Rejection Ratio | 54 to 70 dB | dB |
| Output Voltage Swing | 21 to 23 V | V |
| Thermal Shutdown Junction Temperature | 145 °C | °C |
Key Features
- Thermal Shutdown: Protects the device from overheating.
- Low Saturation Voltage: Ensures efficient operation.
- Output Current to 1 A: High output current capability.
- Single or Split Supply: Flexible power supply options.
- Operates at Low Voltages: Can function with low supply voltages.
- Ground Compatible Inputs: Easy integration with ground-referenced systems.
- Large Common-Mode and Differential Mode Range: Wide input voltage range.
Applications
- Servo amplifiers
- Power supplies
- Compact disc players
- Video recorders (VCRs)
- Bidirectional DC motor control
- Servo control for compact discs
- Capstan motor control in video recorders
- Motor current control circuits
Q & A
- What are the package options for the L272D?
The L272D is available in Powerdip, Minidip, and SO-16 packages.
- What is the maximum output current of the L272D?
The maximum DC output current is 1 A, and the peak output current (non-repetitive) is 1.5 A.
- What is the operating temperature range of the L272D?
The operating temperature range is -40 to 85 °C.
- Does the L272D support single or split supply operation?
- What is the thermal shutdown junction temperature of the L272D?
- What is the gain-bandwidth product of the L272D?
- What are some common applications of the L272D?
- Does the L272D have ground-compatible inputs?
- What is the slew rate of the L272D?
- Is the L272D RoHS compliant?
