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| Title： | Instrumentation Amplifier AD623 Voltage Amplifier Module Adjustable Single Power Supply Single-ended/Differential Small Signal | ||
| Module model: |
AD623 |
Module type: | Weak signal amplifier |
| Input signal formation: | single-ended or differential (disconnect SB5 jump point to be differential input) | Input voltage range: | 100uV-1Vpp |
| Module power supply voltage: | DC6.5V-26V | Module power supply current: | 20mA |
| Output voltage range: | ±5V (MAX) | Output current: | 10mA (MAX) |
| Module gain range: | 1-10000 times (adjustable sliding) | Gain control method: | program control/slip change (jump cap switch) |
| Program control protocol: | SPI (8-bit digital potentiometer) | Bias voltage adjustment range: | ±2V (MAX) |
| Input offset voltage: | 200uV (MAX) | Input offset drift: | 2uV/℃(MAX) |
| Input bias current: | 125mA (MAX) | Common mode rejection ratio: | 90dB (MIN, G=10) |
| Input voltage noise: | 35nV √Hz | Module protection: | Yes (diode anti-reverse protection) |
| Module weight: | 16g | Module specifications: | 50x50x7mm |
| Module heats up: | no heat sink (excessive input voltage may heat up) | Module heating factor: | the input voltage is too large or the module is damaged |
| Module working temperature: | -40℃ - +75℃ (industrial grade) | Module features: | output power LED indication, output 5V linear power |
| Precautions for module use: | (1) The power supply of the module is a dual power supply, and the voltage cannot exceed ±15V (2) Since the module is a high-precision device, for your unnecessary interference, it is recommended to use a linear power supply (3) For the output signal, it is recommended to use a good wire for input and output signals, and use an oscilloscope to observe the effect.Poor contact or poor quality wire may cause signal attenuation or excessive noise. |
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| Frequently Asked Questions: |
Q: How to adjust zero when the module is single-ended input?
A: The module defaults to a single-ended input. After IN+ is grounded with a resistor, the offset can be adjusted to zero, or the input signal can be adjusted to zero by adjusting R6. Q: The module is single-ended by default. What should I do if I need to input a differential signal?
A: When you need to input a differential signal, you first need to remove the jumper cap, then remove the R6 potentiometer, the differential input bias cannot be adjusted, and then use IN+ and IN- to input. Q; What happens when the gain potentiometer is welded and there is no response when adjusting the gain of the potentiometer?
A: The module has a default magnification. The soldered potentiometer and the default resistance R2 are connected in parallel. First of all, the potentiometer is multi-turn and needs to be adjusted a few more turns, or the adjustment is more sensitive after removing the R2 resistance. |
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| Package: |
1*Signal Amplifier |
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On Mar-24-21 at 22:41:06 PDT, seller added the following information:
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