When I simulate the AD8624 with a 500 Ohm load resistor, the output is limited to 0.4V.
The circuit is a differential amplifier with gain 1 using 10kOhm resistors plus a 500Ohm load.
The design will have only +/-5 supply voltage.
I have attached…
Thanks but I was asking about the AD8264 quad differential VGA Amplifier not the AD8624?
Thank you for using ADI products. Regarding your question, the "NC" or "No connect" pins have no internal connections. These pins are provision for improvement for the part's derivative. This means that the "NC" pins of AD8624 in LFCSP maybe…
I have a task to optimize noise in BW 10Hz - 10kHz.
Voltage gain shall be around 20..50. OA connected directly to source of signal,
which has impedance 1kOm DC and 50Om AC. OA connected to middle point of R1/R2 divider,
where R1 connected…
Do you already have a board fabricated? Can your board accommodate something slightly wider? I believe the AD8624 will perform very closely to the OP497. The size of the IC is 4.4mmx5mm, please see Figure 62 on the datasheet. If you require…
REF的值主要取决于后端运放的供电范围以及要放大的信号增益。具体计算可以参考ADI应用笔记AN1165 Supply Voltage一节。
Thanks for your comments. I confess I've never paid attention to the diamond plots before (not being too sure how to interpret them). From your comment I can now see the answer to part 2 of my question. With a difference input of 40mV (when…