Part Number: OPA846 Other Parts Discussed in Thread: THS4551 Hi
The datasheet of the device claism 1.75GHz GBP and 400 MHz BW with G = +10 (front page of the datasheet)
The common rule for maximum achivable BW yields: BW = GBP/G = 175 MHz for G = 10
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Part Number: OPA846 Other Parts Discussed in Thread: TINA-TI , , OPA657 Tool/software: TINA-TI or Spice Models Hi all,
I am now using opa846 and opa657 as TIA .But the output signal is abnormal in shape and amplitude when i simulate the amps by TINA.The…
Part Number: OPA846 Background:
I am using an OPA846 in a transimpedance amplifier with ~100 kOhm of gain. There is a resistor equal to the gain resistor connected to the non-inverting input to cancel the DC offset caused by the input bias current. This…
Other Parts Discussed in Thread: OPA846 , TINA-TI , OPA354 Hi guys
I'm trying to make a high gain amplifier which consists in two stages of 40dB each (x100). I'm using the OPA846 which should fulfill the gain requirements for at least 1 MHz bandwidth. The…
Other Parts Discussed in Thread: OPA380 , OPA846 Dear sir,
I am a student and doing on an optical sensor project.
Figure 1. whole circuit.
I choose OPA380 as the TIA, transimpedance gain is set to 1K, choose OPA846 as the post amp with gain of 470, when…
Other Parts Discussed in Thread: OPA846 , TINA-TI Hi All, We'd like to ask the measurement of phase margin and gain margin on OPA846. <Question> Please refer to attached file.This is the result of phase and gain simulation using OPA846. http://e2e…
Other Parts Discussed in Thread: OPA846 Hi everybody,
I'm using an OPA846
for a transimpedance amplifier. I would like to simulate my system
using PSpice, but I get an error. I've tried to simulate it with other amplifier models and it works.…
Hi Luis,
Vin would be 12V maximum, but typically 6V. So the max Vcm is around 12V.
Of course the BW should be the highest possible, but with 5Khz we should be good.
Fast switch is only needed to minimize voltage drop on 10 Ohm resistor. Typically use…
Part Number: ONET2591TA Other Parts Discussed in Thread: OPA657 , , OPA843 , OPA846 , OPA847 I found an application note, sboa122.pdf that discusses how to calculate the maximum achievable bandwidth for TIAs. It uses the OPA847, OPA846, OPA843 and OPA657…
