Overview
The OPA548T-1G3, produced by Texas Instruments, is a high-voltage, high-current operational amplifier designed to drive a wide variety of loads. This device is part of the OPA548 family and is known for its low cost, high performance, and robust protection features. It operates from either single or dual supplies, offering flexibility in design. The OPA548T-1G3 is suitable for applications requiring high-output current and voltage swing, making it ideal for various industrial and laboratory uses.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (Single Supply) | 8 | 60 | V | |
| Supply Voltage (Dual Supply) | ±4 | ±30 | V | |
| Continuous Output Current | 3 | A | ||
| Peak Output Current | 5 | A | ||
| Output Voltage Swing | (V+)-4.1 | (V+)-3.7 | V | |
| Input Offset Voltage | ±2 | ±10 | mV | |
| Slew Rate | 10 | V/μs | ||
| Quiescent Current | ±17 | ±20 | mA | |
| Operating Temperature Range | -40 | 85 | °C | |
| Thermal Shutdown Temperature | 160 | °C |
Key Features
- Wide Supply Range: Operates from 8 V to 60 V (single supply) or ±4 V to ±30 V (dual supply).
- High-Output Current: Continuous output current of 3 A and peak output current of 5 A.
- Wide Output Voltage Swing: Extensive output voltage range to drive various loads.
- Fully Protected: Features thermal shutdown, adjustable current limit, and output disable control.
- High Slew Rate: Slew rate of 10 V/μs for fast signal response.
- Low Quiescent Current: Quiescent current of ±17 mA to ±20 mA.
- Adjustable Current Limit: Current limit adjustable from 0 A to 5 A using an external resistor or digitally.
- Output Disable Control: Enable/Status pin to disable the output stage and monitor thermal shutdown status.
- Thermal Shutdown Indicator: Indicates when the device is in thermal shutdown.
- Packages: Available in 7-lead TO-220 and 7-lead DDPAK surface-mount packages.
Applications
- Semiconductor Manufacturing: Used in various semiconductor manufacturing processes.
- Semiconductor Test: Ideal for testing semiconductor devices.
- Lab and Field Instrumentation: Suitable for laboratory and field instrumentation applications.
- LCD Test: Used in testing LCD displays.
- Analog Input Module: Part of analog input modules in various systems.
- Ultrasound Scanner: Employed in ultrasound scanner systems.
Q & A
- What is the supply voltage range for the OPA548T-1G3?
The OPA548T-1G3 operates from 8 V to 60 V (single supply) or ±4 V to ±30 V (dual supply).
- What is the continuous output current of the OPA548T-1G3?
The continuous output current is 3 A, with a peak output current of 5 A.
- How is the current limit adjusted on the OPA548T-1G3?
The current limit can be adjusted from 0 A to 5 A using an external resistor or digitally with a voltage-out or current-out DAC.
- What protection features does the OPA548T-1G3 have?
The device features thermal shutdown, adjustable current limit, and output disable control.
- What is the slew rate of the OPA548T-1G3?
The slew rate is 10 V/μs.
- What are the typical applications of the OPA548T-1G3?
It is used in semiconductor manufacturing, semiconductor test, lab and field instrumentation, LCD test, analog input modules, and ultrasound scanners.
- What packages is the OPA548T-1G3 available in?
The device is available in 7-lead TO-220 and 7-lead DDPAK surface-mount packages.
- How does the Enable/Status (E/S) pin function?
The E/S pin can disable the output stage and monitor the thermal shutdown status.
- What is the operating temperature range of the OPA548T-1G3?
The device operates over a temperature range of -40°C to 85°C.
- What is the thermal shutdown temperature of the OPA548T-1G3?
The device shuts down at approximately 160°C and resets when the temperature drops to 140°C.
