The OPA561 is a low-cost, high-current operational amplifier capable of driving up to 1.2A pulses into reactive loads. This monolithic integrated circuit provides high reliability in demanding line-carrier communications, laser diode drivers, and motor control applications. The high slew rate provides 1MHz full-power bandwidth and excellent linearity.
●The OPA561 operates from either a single supply in the range of 7V to 15V or dual power supplies of ±3.5V to ±7.5V for design flexibility. In single-supply operation, the input common-mode range extends below ground. At maximum output current, a wide output swing provides a 12Vp-p capability with a nominal 15V supply.
●The OPA561 is internally protected against over-temperature conditions and current overloads. In addition, the OPA561 is designed to provide an accurate, user-selected, current limit. The current limit can be adjusted from 0.2A to 1.2A with a low-power resistor/potentiometer or DAC (Digital-to-Analog Converter). The high-speed characteristics of the current control loop provide accuracy even under pulsed load conditions.
●The Enable/Status (E/S) pin performs two functions: it can be monitored to determine if the device is in thermal shutdown (active LOW), and it can also be forced LOW to disable the output, disconnecting the load.
●The OPA561 is available in the miniature, HTSSOP-20 PowerPAD power package. This surface-mount package is thermally enhanced and has a very low thermal resistance. Operation is specified over the extended industrial temperature range, 40°C to +125°C.
● 1.2A OUTPUT CURRENT
● 12VPP OUTPUT VOLTAGE
● WIDE POWER RANGE:
● Single Supply: +7V to +15V
● Dual Supply: ±3.5V to ±7.5V
● FULLY PROTECTED:
● Thermal Shutdown
● Adjustable Current Limit
● OUTPUT DISABLE CONTROL
● 17MHz GAIN-BANDWIDTH PRODUCT
● 50V/µs SLEW RATE
● 1MHz FULL-POWER BANDWIDTH
● THERMALLY ENHANCED HTSSOP-20 PowerPAD PACKAGE
● APPLICATIONS
● POWER-LINE COMMUNICATIONS
● VALVE-ACCUATOR DRIVERS
● POWER SUPPLIES
● TEST EQUIPMENT
● TEC DRIVERS
● LASER DIODE DRIVERS
●PowerPAD is a registered trademark of Texas Instruments Incorporated.
●All other trademarks are the property of their respective owners.
