您好,
您能推荐一下+5V转正负2.5V的稳压电源芯片吗?用来给ADA4528-2双电源供电。
另外,请问您,给模拟芯片供电的电源和给数字芯片供电的电源一样吗?有什么区别呢?
期待您的答复,谢谢您的回答!
LiJing
您好,
您能推荐一下+5V转正负2.5V的稳压电源芯片吗?用来给ADA4528-2双电源供电。
另外,请问您,给模拟芯片供电的电源和给数字芯片供电的电源一样吗?有什么区别呢?
期待您的答复,谢谢您的回答!
LiJing
According to the data sheets OPA2188 has more than twice the noise as ADA4528-2. But the test results are just the opposite. ADA4528-2 may have more current noise. But the calculated current noise cannot explain what observed.
My question is if It´s possible to connect a load cell (+10VDC supply) with zero drift amplifier ADA4528-2 (+5VDC supply) for driving diferential input of AD7172-2 AD converter.
You can see the schematic attached.
regards.
Hi mohammadsdtmnd,
Your circuit suffers from a lack of Phase Margin. You can simulate this using the technique outline here:
https://www.analog.com/en/education/education-library/videos/5579254320001.html
I've done that and I see a negative phase (-54deg…
Hi Moritz,
I would recommend the ADA4528-2. Aside that this is newer compared to AD797, it uses a chopping architecture to achieve excellent DC spec performance: ultralow offset voltage, no 1/f noise, ultralow drift over time and temperature. This makes…
Precision Current Meter Using ADA4528 by PatNoonan@NI
Working with a user on this and thought this might be beneficial to the masses.
Multisim simulation circuit attached.
Note: User can adjust potentiometer while simulating to see current / Vout change…
Hello,
I'm using a ADA4528-2 as a non-inverting buffer (single sided, 5V). I'm seeing a 200mV Pk-Pk 120kHz oscillation when a constant DC voltage is applied to the +IN pin. My initial circuit contained a 47 ohm resistor to isolate the circuit from any…
Hi Vic,
Have you tried isolating the ADA4528-2 on its own to see whether you get the same response? Let me know how this works out.
Thanks,
Donnie
I am experimenting with using the ADA4528 to boost the signal from a load cell. Below is my circuit for the positive signal pin of the load cell. The negative circuit is the same, and the ground connection shown is not ground, but the common connection…