I have downloaded the SPICE model file for the OP177 but found that it actually contains the model for the OP1177.
Where can I get the proper SPICE model file for the OP177 ?
I will ask questions about the power supply sequence of OP177.
Originally it should start up ± power at the same time, but the negative side is the rising earlier by the circumstances of the other of ICs.
So, after the rise of the negative power…
how the circuit worhs,how the relationship between output and input is calculated and derived.
Our customer asked th following question to me.
As for your OPAMP OP177GSZ,
your datasheet shows the adjustable offset voltage adjustment range is +/-3mV typ by adding 20kohm POT on Rp.
So if we need it +/-6mV, then what is the external…
I use AD620 in order to amplify my loadcell signal. I have +/-15V present. I regulate these voltages to 10V and -11V. I use 10V to excite loadcell. Also I use 10V to power AD620 and OP177 op-amps. (There is a filtering circuit after AD620 with couple…
Thanks for the informative reply. I have hit the books since your reply and made an excel sheet that incorporates all the details (input offset volts, current, input bias current, Rth of the wheatstone bridge). Waiting to get back to office…
You can use the OP177 datasheet, which has an internal circuit. These amps are related
Ask everyone, what alternative chip or solution is there for the AD711 chip,
can OP07 or OP177 completely replace the AD711? Or there are other better chips.
最开始恒流源电路用的是op177，这个倒是很稳，但是这个不是个轨到轨输出的。 然后换了个轨到轨的AD820，板子上一共16路恒流源3V基准（图里3k实际是）1.2k电阻，正常电流应该是2.5mA，但是实际输出的啥值都有2.444，2.511······ 又换成AD8638，正常这个应该更好，失调电压更低。但是实际才2.1mA输出，郁闷···· 换回op177…