<s>
Spectre	O
is	O
a	O
SPICE-class	O
circuit	B-Language
simulator	I-Language
owned	O
and	O
distributed	O
by	O
the	O
software	O
company	O
Cadence	O
Design	O
Systems	O
.	O
</s>
<s>
It	O
provides	O
the	O
basic	O
SPICE	B-Protocol
analyses	O
and	O
component	O
models	O
.	O
</s>
<s>
It	O
also	O
supports	O
the	O
Verilog-A	B-Language
modeling	O
language	O
.	O
</s>
<s>
Spectre	O
comes	O
in	O
enhanced	O
versions	O
that	O
also	O
support	O
RF	O
simulation	O
(	O
SpectreRF	B-Algorithm
)	O
and	O
mixed-signal	O
simulation	O
(	O
AMS	O
Designer	O
)	O
.	O
</s>
<s>
Spectre	O
is	O
currently	O
a	O
leading	O
circuit	B-Language
simulator	I-Language
,	O
competing	O
with	O
HSPICE	O
and	O
several	O
others	O
.	O
</s>
