A differential transimpedance amplifier (TIA) circuit comprises first,
second, third, fourth, fifth and sixth transconductance amplifiers having
an input, an output and first, second, third, fourth, fifth and sixth
transconductance gains, respectively. A first resistance communicates
with said third transconductance amplifier and with said second
transconductance amplifier. A second resistance communicates with said
third transconductance amplifier and said third transconductance
amplifier. A third resistance communicates with said sixth
transconductance amplifier and said fifth transconductance amplifier. A
fourth resistance communicates with said sixth transconductance amplifier
and with said sixth transconductance amplifier. A fifth resistance
communicates with said third transconductance amplifier and said fourth
transconductance amplifier. A sixth resistance communicates with said
sixth transconductance amplifier and said first transconductance
amplifier.