Solid
State
/
Linear
Integrated
Circuits
\
Monolithic
Silicon
h
P
CA32800,
CA3280AG
a
z
Division
Types
$
Dual
Variable
Operationa
I
Amplifiers
"G"
Suffix
Type-Hermetic
Gold-CHIP
in
Dual-In-Line
Plastic
Package
Features:
tow
initial
input-onset
voltage:
500
pV
ma%
fCA3280A1
Low
offset-volta*
change
versus
1~8~:
<
50500
fiV
typ.
for all
types
i.~
Low
offset-voltage drift:
5
pVlC
max.
fcA328oA).
The
RCA-CA3280
and
CA3280A
typ~
types
cons~st
of
two
variable operatronal
arnpl~fiers that are
designed
to substant~ally
reduce
rhe
~n~t~al Input offset voltage
and
the
offset-voltage
ranation
with
respect
to
changes
In
programming
current.
Th~s
design
results
in
reduced
"AGC
thump,"
an
ob.
ject~anable chararterrstlc of manv
AGC
systems.
Interdlg~tatlon, or
croascoupPing.
of
crit~cal portlons
of
the clrcult rduces
the
ampl~fier dependence upon thermal and
processing
var~ables.
The
CA3280
has
all
the
generlc charac-
terlstrcs
of
an operat~onal voltage arnpl~fler
lContlnued
on
Pale
2)
.I
Excellent
matching
of
the
two
amplifiers
far
all
characterinim
Internal current-driven linearizing
diodss
reduw
the
emernel
rnput
arrmnt
to
an
omel
component
Differential
amplifier emitters
brought
owl
for use in emitterarupled dual-differemial
amplifier applications
low
noise:
8
nv!G
@
1
kHz
typ.
.I
Low
distart~rrd:
0.4%
f
HD
typ.
Trm
made5
of
gain cantml
Hermetic
GolbCHIP
in
a
plastic
package
90CS'
11
501
-7
rn
2
Fjg
1
-
Funcnonef
dr6gram
of
l
L?
CA3ZBd.
~tademark(r)~~~hsrer~
Imlarma!#on
lurn~mea
ar
IlCA
mrbrl8md
to
brlccurate
and
Prlntd
ln
USA1379
Marc-Is)
Rsmrtrsdats)
rslubli
H-
na
rsrponr~brl~ry
rs
arwrn-d
bv
RCA
fef
rlr
uu
nor
lor
n*~nlr~ngementx
07
palanlror orhsrrqhrrol
lhfo
errlles
when
mar
r!sulr
from
8rr
uu
Ma
llcrnv
15
lranltd
by
rmpl8cnman
or olhrmurc
unden
any
plrrnf
or
plrrnt rlphtr
04
RCA
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