All Questions
Tagged with power-consumption operational-amplifier
6
questions
2
votes
2
answers
2k
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How to calculate the current / power consumption of instrumentation amp with op amp as an impedance converter at REF input
I have a measuring bridge and want to connect it to an ADC with an AD8227 instrumentation amplifier (Datasheet). For the reference voltage, I have connected a voltage divider to an LP358 as an ...
- 23
0
votes
0
answers
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calculating current draw for opamp circuit
I am trying to understand how to estimate the current drawn by the following opamp circuit and how much current the regulators for the +14/-14 rails should be able to deliver.
The opamp used is the ...
- 231
1
vote
1
answer
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Opamp power consumption
Attached simulation of op-amp .
Q1) In Op-amp ckt 1 has power supply of 20V and In Op-amp ckt 2 has power supply of 15V (rest everything is same). How current consumption is more in 20V rather than ...
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-3
votes
1
answer
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Which device has lowest power consumption? [closed]
In one of my project I need to scale down 12V dc to 8V. For this purpose I know that I can use,
Voltage divider using two resistors.
An opamp with +ve feedback
A dc-dc converter
I know that I didn'...
- 558
0
votes
2
answers
201
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switch OpAmp down to minimize power consumption
I'm currently designing a board which senses some stuff. The board is powered using a 6V lithium battery. According to my sensor+OpAmp logic I need to split the voltage into +/-3V.
The circuitry to ...
- 1
0
votes
1
answer
1k
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LMH6611 (OpAmp) draws too much current
We are using the LMH6611 OpAmp from TI as it offers high current rail-to-rail output (100mA) and high frequency (345MHz), which seems to be quite unique in this combination. In addition, the power ...
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