Table 1. Key AFE requirements for reliable acquisition of LFPs during deep brain stimulation (DBS).

Property	Value	Units/comments
Gain	⩾60	dB
Noise power spectral density estimate	⩽100	$\text{nV}{(\sqrt{\text{Hz}})}^{-1}$
Integrated noise	⩽100	nV rms (0.5–500 Hz)
CMRR	⩾100	dB (DC to 60 Hz)
Differential DC offset to tolerate	Tens of	mV
Hours of continuous operation	⩾24	h
Input dynamic range	⩾ ±200	μV
High-pass corner	0.5	Hz
Low-pass corner	500	Hz