OPA547F-500 Detailed explanation of pin function specifications and circuit principle instructions

The model number " OPA547F/500 " refers to a specific operational amplifier manufactured by Texas Instruments, a well-known brand in the semiconductor industry. The "OPA547" is a high- Power operational amplifier designed for audio, control, and power supply applications. The "F" in the part number typically indicates a surface-mount package type (often related to the "SOIC" or "D" series), and "500" refers to the quantity in the reel (usually 500 pieces).

Package Type:

The "OPA547F" is available in a SOIC-8 (Small Outline Integrated Circuit) package, which typically contains 8 pins.

Pin Function List (OPA547F SOIC-8):

Pin Number Pin Name Function Description 1 V− (Negative Voltage Supply) This pin connects to the negative side of the power supply. It is typically grounded or connected to a negative voltage source. 2 V+ (Positive Voltage Supply) This pin connects to the positive side of the power supply. This is the high voltage supply pin for the operational amplifier. 3 IN− (Inverting Input) The input pin for the inverting signal. The signal applied to this pin is inverted relative to the output. 4 OUT (Output) The output of the operational amplifier. This pin provides the amplified version of the input signal. 5 NC (No Connection) This pin is not connected internally and has no functional role in the operation of the device. 6 IN+ (Non-Inverting Input) The input pin for the non-inverting signal. The signal applied to this pin is amplified without inversion. 7 V− (Negative Voltage Supply) Another pin for the negative supply. (Some pins are connected internally in the package to distribute the voltage connections.) 8 V+ (Positive Voltage Supply) Another pin for the positive supply (similar to pin 2). It serves to distribute the voltage supply connections.

Pin Function Detailed Description:

The OPA547F operational amplifier is designed to operate in a dual-supply configuration, and the voltage supplies (V+ and V−) must be properly configured for correct operation. The input pins (IN+ and IN−) are used to apply the signals to be amplified, and the output pin (OUT) provides the result of the amplification. This amplifier is often used in high-current applications due to its ability to drive high output loads.

Usage Notes: Ensure that the power supply pins (V+ and V−) are correctly connected to your system's voltage rails. The output voltage will swing between the supply rails, so make sure your load can handle the required current. The "NC" pin does not have any electrical function and should not be connected to anything.

20 FAQ for OPA547F/500 Model:

What is the power supply voltage range for the OPA547F/500? The OPA547F/500 requires a dual power supply with a typical voltage range of ±4V to ±40V.

Can I use a single power supply with the OPA547F/500? Yes, you can use a single supply by grounding the negative voltage pin (V−) and providing the positive voltage (V+).

What is the maximum output current the OPA547F/500 can drive? The OPA547F/500 can drive up to 10A of peak output current.

What type of package is the OPA547F/500 available in? The OPA547F/500 is available in the SOIC-8 (Small Outline Integrated Circuit) package.

How should I connect the input pins of the OPA547F/500? The IN+ pin is for the non-inverting input, and the IN− pin is for the inverting input. Both are typically connected to voltage dividers or other signal sources.

Is the OPA547F/500 a rail-to-rail amplifier? No, the OPA547F/500 does not have rail-to-rail input or output. The output is limited to slightly less than the supply rails.

Can the OPA547F/500 be used for audio amplification? Yes, the OPA547F/500 is often used in audio amplification circuits due to its high power output.

What is the typical bandwidth of the OPA547F/500? The OPA547F/500 typically offers a bandwidth of around 1 MHz.

Can I use the OPA547F/500 for a high-current motor driver? Yes, it is suitable for high-current applications such as motor drivers, as it can output significant amounts of current (up to 10A).

What is the gain bandwidth product of the OPA547F/500? The OPA547F/500 has a gain-bandwidth product of approximately 1 MHz.

Is the OPA547F/500 suitable for power supply applications? Yes, the OPA547F/500 is designed for power supply applications and can provide high current and voltage stability.

How do I calculate the gain of the OPA547F/500? The gain is determined by the external resistors connected to the input pins (IN+ and IN−). The gain formula is G = (Rf / Rin), where Rf is the feedback resistor and Rin is the input resistor.

Can the OPA547F/500 handle inductive loads? Yes, it can handle inductive loads, but proper protection circuits may be required to prevent back-emf from damaging the amplifier.

What is the recommended operating temperature range for the OPA547F/500? The recommended operating temperature range for the OPA547F/500 is −40°C to +85°C.

What is the slew rate of the OPA547F/500? The OPA547F/500 has a typical slew rate of 0.5 V/µs.

Can the OPA547F/500 be used in automotive applications? Yes, the OPA547F/500 is suitable for automotive applications due to its high current driving capability and wide operating voltage range.

How do I ensure stability when using the OPA547F/500? Stability is achieved by ensuring proper feedback and compensation network design. Additionally, using a good PCB layout and ensuring proper bypassing of the supply rails will help.

Can I use the OPA547F/500 in a bridge amplifier configuration? Yes, the OPA547F/500 can be used in a bridge amplifier configuration for higher output power.

What is the power dissipation of the OPA547F/500? Power dissipation depends on the supply voltage and output current. It can be calculated using P = Vsupply × Ioutput.

Does the OPA547F/500 have thermal shutdown protection? Yes, the OPA547F/500 includes thermal shutdown protection to prevent overheating.

This explanation is designed to be detailed and cover the main aspects of the device and its application. Please note that the "OPA547F/500" is limited to an 8-pin SOIC package, so it does not have 200 pins or other complex pin configurations as might be the case with larger or more specialized ICs.