Overview
The OPA569AIDWPR, produced by Texas Instruments, is a low-cost, high-current operational amplifier designed to drive a wide variety of loads while operating on low-voltage supplies. It operates from either single or dual supplies, offering design flexibility, and features rail-to-rail swing on both input and output. The amplifier is unity-gain stable, has low DC errors, and is free from phase inversion problems common in some power amplifiers. It maintains high performance even at voltage swings near the output rails.
The OPA569AIDWPR is packaged in the Texas Instruments PowerPAD™ package, which is small and easy to heat-sink, and is specified for operation over the industrial temperature range of –40°C to +85°C.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Output Current | - | - | 2A | A |
| Output Voltage Swing | - | - | 150mV of Rails | mV |
| Supply Voltage Range | 2.7V | - | 5.5V | V |
| Operating Temperature Range | -40°C | - | 85°C | °C |
| Input Offset Voltage | - | ±0.5mV | ±2mV | mV |
| Input Bias Current | - | ±1pA | ±10pA | pA |
| Common-Mode Rejection Ratio (CMRR) | 60dB | - | 100dB | dB |
| Package Type | - | - | SO-20 PowerPAD | - |
Key Features
- High Output Current: Up to 2A
- Output Swing: Within 150mV of the supply rails
- Thermal Protection: Thermal warning and shutdown capability
- Adjustable Current Limit: Set with an external resistor or digitally via a Digital-to-Analog Converter
- Two Flags: Current limit and temperature warning flags
- Low Supply Voltage Operation: From 2.7V to 5.5V
- Shutdown Function with Output Disable: Independent output disable via the Enable pin
- Small Power Package: SO-20 PowerPAD package for efficient heat sinking
- Output Current Monitoring: 1:475 bidirectional copy of the output current via the IMONITOR pin
Applications
- Thermoelectric Cooler Driver: Suitable for driving thermoelectric coolers.
- Laser Diode Pump Driver: Ideal for driving laser diodes.
- Valve, Actuator Driver: Used for controlling valves and actuators.
- Servo, Synchro Driver: Applicable for servo and synchro motor control.
- Transducer Excitation: Suitable for exciting transducers.
- General Linear Power Booster for Op Amps: Can be used to boost the output of other operational amplifiers.
- Paralleling Option for Higher Current Applications: Allows multiple units to be paralleled for higher current requirements.
Q & A
- What is the maximum output current of the OPA569AIDWPR?
The maximum output current is 2A.
- What is the typical output voltage swing of the OPA569AIDWPR?
The output voltage swing is typically within 150mV of the supply rails.
- What is the operating temperature range of the OPA569AIDWPR?
The operating temperature range is from –40°C to +85°C.
- How is the current limit set on the OPA569AIDWPR?
The current limit can be set with an external resistor or digitally via a Digital-to-Analog Converter.
- Does the OPA569AIDWPR have thermal protection features?
- What package type is the OPA569AIDWPR available in?
- Can the output of the OPA569AIDWPR be independently disabled?
- How does the IMONITOR pin function on the OPA569AIDWPR?
- What are some common applications of the OPA569AIDWPR?
- Can multiple OPA569AIDWPR units be paralleled for higher current applications?
