Ac. Vanderwoerd et al., LOW-VOLTAGE LOW-POWER TRANSCONDUCTORS WITH EXTREMELY LARGE DYNAMIC-RANGE AND LOW DISTORTION/, Electronics Letters, 33(19), 1997, pp. 1589-1590
A new class of configurations for linear low-voltage/low-power transco
nductors is presented. With a single supply voltage of 1.0V, a dynamic
range of > 100dB within the audio bandwidth is feasible. The linearit
y exceeds 99% within an input voltage between -9 and +9 times the ther
mal voltage. Owing to class-AB operation the quiescent power consumpti
on is extremely low. A special biasing technique, called 'indirect bia
sing' ensures stable biasing and large PSSR.