Details
BUY INA117KU https://www.utsource.net/itm/p/12532570.html
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage | VCC | - | 2.7 | - | 36 | V |
| Input Voltage Range | VIN | - | -0.3 | - | VCC + 0.3 | V |
| Quiescent Current | IQ | VCC = 5V | - | 150 | - | μA |
| Output Voltage Swing | VOUT | No Load | 0.1 | - | VCC - 0.1 | V |
| Common-Mode Rejection Ratio | CMRR | f = 1 kHz | - | 98 | - | dB |
| Gain Bandwidth Product | GBW | - | - | 400 | - | kHz |
| Input Offset Voltage | VOS | - | - | 50 | 150 | μV |
| Input Bias Current | IB | - | - | 20 | 100 | pA |
| Differential Input Voltage Range | VID | - | - | - | ±(VCC - 1.5) | V |
Instructions for Use
Power Supply:
- Ensure the supply voltage (VCC) is within the range of 2.7V to 36V.
- Connect the power supply to the VCC pin and ground (GND) pin.
Input Connections:
- Connect the input signals to the non-inverting (IN+) and inverting (IN-) pins.
- Ensure the input voltages are within the range of -0.3V to VCC + 0.3V.
Output Configuration:
- The output voltage swing is from 0.1V to VCC - 0.1V. Ensure the load is properly connected to the output pin (OUT).
Biasing and Offset:
- The input bias current is typically 20pA, but can range up to 100pA. Consider this when designing the input circuitry.
- The input offset voltage is typically 50μV, but can range up to 150μV. This may need to be compensated for in precision applications.
Common-Mode Rejection:
- The common-mode rejection ratio (CMRR) is 98dB at 1kHz, which helps in rejecting common-mode noise.
Gain and Bandwidth:
- The gain bandwidth product (GBW) is 400kHz, which affects the stability and performance of the amplifier at higher frequencies.
Differential Input Voltage:
- The differential input voltage range is ±(VCC - 1.5V). Ensure that the difference between IN+ and IN- does not exceed this range to avoid damage or incorrect operation.
Thermal Considerations:
- Ensure adequate heat dissipation if operating at high supply voltages or under high load conditions.
Layout and Grounding:
- Use proper PCB layout techniques to minimize noise and interference. Keep signal traces short and use a ground plane to reduce parasitic capacitance and inductance.
Testing and Troubleshooting:
- Test the device with known input signals to verify correct operation.
- Use an oscilloscope to monitor the output and input signals for any unexpected behavior.
By following these instructions, you can ensure optimal performance and reliability of the INA117KU instrumentation amplifier.
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