anti-aliasing without filter?

[Ricardo Antunes <>]

using the frequency response of transducers and/or
 amplifiers (e.g. due to GBP limitations) to avoid
 aliasing?
 
 If for instance I use a transducer with a response
 that drops past 100 kHz and an amplifier with a
 similar frequency response, and I sample my signal at
 500 kHz, I could avoid aliasing without having to use
 a low pass filter before the analog-to-digital stage.
 Does this makes sense?
 
 All the best,
 
 Ricardo Antunes