You are working at an aircraft manufacturing plant on an altitude sensor that eventually will be used to retrofit dozens of similar sensors on an upgrade to a current airframe. You are required to find a quality notch filter to eliminate an undesirable interference at \(400 \mathrm{~Hz}\). You find a vendor and ask for a suitable product specification and a bid.
The specifications you require are as follows:
1. Must block signals at \(40 \mathrm{OHz} \pm 2 \% \mathrm{~Hz}\)
2. Passband gain should be \(\mathrm{odB} \pm 1 \mathrm{~dB}\)
3. Bandwidth should be \(20 \mathrm{~Hz} \pm 5 \% \mathrm{~Hz}\)
The vendor's proposal, shown as a Multisim drawing in Figure P14-47, claims to meet all of the design requirements. Determine if it passes all of the stated requirements. Then explain if you would buy the filter and why or why not?

Transcribed Image Text:

A Notch Below Filters, Inc. $60 per (100 or more) 1 Vpk 1 kHz 0 V (+2 R www 625 92 R3 ww 1.25 C HH .016 F R4 1 MQ C .016 F + R ww U1 OPAMP_3T_VIRTUAL