Overview
The OPA2544TG3 is a high-voltage, high-current dual operational amplifier produced by Texas Instruments. It is designed to drive a wide variety of high power loads, making it suitable for applications that require robust output capabilities. The OPA2544TG3 integrates two high-performance FET op amps with high power output stages on a single monolithic chip, offering features such as high output current, wide power supply range, and internal protection mechanisms.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Input Offset Voltage | ±1 | ±5 | - | mV |
| Input Bias Current | ±15 | ±50 | - | pA |
| Common-Mode Input Range | (V–) –6 to (V+) –4 | - | - | V |
| Open-Loop Voltage Gain | 90 | 103 | - | dB |
| Gain-Bandwidth Product | - | 1.4 | - | MHz |
| Slew Rate | 5 | 8 | - | V/µs |
| Output Current | 2 | - | - | A |
| Power Supply Voltage | ±10 | - | ±35 | V |
| Operating Temperature Range | -40 | - | +85 | °C |
| Thermal Shutdown Temperature | - | - | 155 | °C |
Key Features
- High output current: 2A minimum
- Wide power supply range: ±10V to ±35V
- Internal current limit and thermal shutdown protection
- FET input with low input bias current (IB = 50pA max)
- High slew rate: 8V/µs
- Available in 11-lead plastic packages
- Operating temperature range: –40°C to +85°C
Applications
- Motor drivers
- Programmable power supplies
- Servo amplifiers
- Valve and actuator drivers
- Magnetic deflection coil drivers
- Audio amplifiers
Q & A
- What is the maximum output current of the OPA2544TG3?
The maximum output current is 2A. - What is the power supply voltage range for the OPA2544TG3?
The power supply voltage range is ±10V to ±35V. - Does the OPA2544TG3 have internal protection mechanisms?
Yes, it has internal current limit and thermal shutdown protection. - What is the slew rate of the OPA2544TG3?
The slew rate is 8V/µs. - In what package is the OPA2544TG3 available?
The OPA2544TG3 is available in an 11-lead plastic package. - What is the operating temperature range of the OPA2544TG3?
The operating temperature range is –40°C to +85°C. - What are some typical applications for the OPA2544TG3?
Typical applications include motor drivers, programmable power supplies, servo amplifiers, valve and actuator drivers, magnetic deflection coil drivers, and audio amplifiers. - How does the thermal shutdown protection work in the OPA2544TG3?
The thermal shutdown protection activates at a junction temperature of approximately 155°C to protect the amplifier from damage due to excessive power dissipation. - Can the OPA2544TG3 be used with unbalanced power supplies?
Yes, the OPA2544TG3 can be used with unbalanced power supplies, where the positive and negative power supply voltages do not need to be equal. - What is the common-mode input range for the OPA2544TG3?
The common-mode input range is (V–) –6 to (V+) –4 V.
