Dear Sir:
According to the measurement.
U301_PWM7 : 0.9V
P3V3_CODEC : 0.24V
The SOC internal Pull up RES.(90Kohm) to 3.3V.
ILIMIT = (3.3V-0.9V) / 90Kohm = 26.7uA.
The Voltage of U301_PWM7 = P3V3_CODEC + ILIMIT*R751 + VD (U710 OPA377 internal ESD diode…
Part Number: OPA377-Q1 Other Parts Discussed in Thread: OPA377 Hi Team,
As i am working on amplifier OPA377QDBVRQ1 and require some input
1. output voltage V/s output current graph at 85degC for 0 to 3.3V
In datasheet it provide -40 to 150 degC
Part Number: OPA377-Q1
Hi, this for MPN-OPA377QDBVRQ1. In the above circuit to find out the voltage at negative terminal (V.NEG) what are the voltages need to be considered considering all offset. If you can provide the equations for V.NEG it would be…
Part Number: OPA377 Other Parts Discussed in Thread: TINA-TI Tool/software: WEBENCH® Design Tools I am attempting to make a TINA-TI noise simulation w the opa377. After finishing the schematic, I run a ac analysis and the results are as expected. A noise…
Part Number: OPA377-Q1 Other Parts Discussed in Thread: OPA377 I use the OPA377 as a current limiting circuit.
The voltage of the 3 pin of OPA377 is 0.19V,but the voltage of the 4 pin of OPA377 is 0.72V。
The voltage of the 3 pin and the 4 pin should be…
Part Number: OPA377 Hi team,
My customer has a SPK AMP (TPA2010) design, the line out of the CPU and the line out of the codec are simultaneously connected to the SPK AMP (TPA2010) through the Pre-AMP (OPA377).
Two line outs may be output for mixing…
Hi Kai-san, Marek-san
Thank you for response.
Kai-san
I will send your response to my customer.
Marek-san
Your answer is about opa2377-Q1.
I want a opa377-Q1(DBV Package 5-Pin SOT23) answer.
Could you tell me ?
Best Regards,
Koji Hayashi
And in confirming that the OPA377 might be a good fit, I noticed a link to the online TI filter designer where it delivers this solution - not sure how to change the op amp selected, but modifying my previous OPA377 design to this set of RC values to…
Part Number: OPA377 Other Parts Discussed in Thread: TINA-TI ,
Tool/software: TINA-TI or Spice Models
First of all, thank you for the TI Precision Labs! Really helpful.
Spoiler: As I was writing this question, I believe I found the answer...
I would like…
Tony,
The common-mode and differential input resistance of OPA325 and OPA377 are extremely high - around 10^13 (10Tohm) while common-mode and differential input capacitance is given in their respective datasheets - see below.