Description
OPA548 High Voltage Wide-Output-Voltage-Swing Power Operational Amplifier High Output Current Amplifier
Product Description
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OPA548 device is a low cost, high voltage, high current operational amplifier, very suitable for driving various loads. 0PA548 device adopts dual power supply and has design flexibility. The OPA548 device has internal thermal protection and current overload protection. The OPA548 device provides accurate user-selected current limit. Unlike other designs that use power resistors in series with the output current path, the OPA548 device indirectly detects the load. It is suitable for motor drive speaker drive, transformer drive and audio amplifier. It can also amplify triangle wave, sine wave, and square wave signals.
Chip features
Wide Supply Range: Single Supply: 8V to 60V Dual Supply: ±4V to ±30V
High current output: 3A sustained 5A peak
Wide output voltage swing
Full protection: thermal shutdown adjustable current limit
Output cannot be controlled
Thermal shutdown indicator
High slew rate: 10V
Low quiescent current
High current output: 3A sustained 5A peak
Wide output voltage swing
Full protection: thermal shutdown adjustable current limit
Output cannot be controlled
Thermal shutdown indicator
High slew rate: 10V
Low quiescent current
Chip application
Valve, drive drive
Synchronous servo drive
power supply
Test Equipment
Transducer excitation
Synchronous servo drive
power supply
Test Equipment
Transducer excitation
Product Paramenters
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Module model
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OPA548
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Module type
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low frequency power amplifier
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Input signal form
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single-ended
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Input voltage range
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2Vpp (MAX); generally within the power supply range
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Module input impedance
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10K ohm
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Module supply voltage
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± 4V ～ ± 30V
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Module supply current
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± 4A; large output current requires large supply current
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Module output impedance
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low impedance
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Output voltage range
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54Vpp (MAX); in the case of positive and negative 30V power supply
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Output current
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3A (MAX)
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Output power
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22.5W (MAX)
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Module gain
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33 times; the default gain is 33 times, the first level is 11 times, the second level is 3 times, G1 = R1 / R2 + 1, G2 = R2 / R3 +1
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Input offset voltage
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1mV (MAX)
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Input offset drift
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2uV / ℃ (MAX)
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Input bias current
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125nA (MAX)
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Input voltage noise
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35nV√Hz (1KHz)
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Module weight: 125g
Module specifications: 96 * 64 * 42mm; length * width * height-PCB size
Module heating: with heat sink; forced air cooling is required at high current
Module heating factors: the input and output voltage is too large or the module is damaged
Module working temperature: -40 ℃-+ 75 ℃; industrial grade
Module features: positive and negative power LED indication
Application range: small signal amplification, audio signal amplifier, motor drive, servo amplifier, etc.
Module interface type: SMA signal signal input and output, 5.08 blue power card wire holder
Module specifications: 96 * 64 * 42mm; length * width * height-PCB size
Module heating: with heat sink; forced air cooling is required at high current
Module heating factors: the input and output voltage is too large or the module is damaged
Module working temperature: -40 ℃-+ 75 ℃; industrial grade
Module features: positive and negative power LED indication
Application range: small signal amplification, audio signal amplifier, motor drive, servo amplifier, etc.
Module interface type: SMA signal signal input and output, 5.08 blue power card wire holder
Installation Instructions
Precautions for using the module
(1) The power consumption of the module is large, and the power supply needs to have a certain margin. It is recommended to use a power supply with a current drive capacity greater than twice the output current. The module can only be powered by dual power supplies.
(2) In order to avoid unnecessary interference, it is recommended to use a linear power supply, the power supply should not exceed plus or minus 35V.
(3) It is recommended to use the SMA to BNC cable to directly observe the output signal for the output signal. Poor contact or poor quality wires may cause signal attenuation or excessive noise.
(4) The SMA port is not available for power output, and a blue terminal block must be used. The SMA port is for observing the signal and cannot pass power.
(5) Due to the large power consumption and heat generation, pay attention to ventilation and heat dissipation for long-term work, and add fans to strengthen heat dissipation if necessary.
(6) Since the module has a fixed magnification and no external protection circuit, it is recommended to confirm the output power and amplitude before loading to avoid damage to the module.
(2) In order to avoid unnecessary interference, it is recommended to use a linear power supply, the power supply should not exceed plus or minus 35V.
(3) It is recommended to use the SMA to BNC cable to directly observe the output signal for the output signal. Poor contact or poor quality wires may cause signal attenuation or excessive noise.
(4) The SMA port is not available for power output, and a blue terminal block must be used. The SMA port is for observing the signal and cannot pass power.
(5) Due to the large power consumption and heat generation, pay attention to ventilation and heat dissipation for long-term work, and add fans to strengthen heat dissipation if necessary.
(6) Since the module has a fixed magnification and no external protection circuit, it is recommended to confirm the output power and amplitude before loading to avoid damage to the module.
Details Images
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