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Mod€ls
461A1462A
Se.tidn
I
hragraphs
1-1
to
1-5
and
Tabl€
1-1
sEcTtoN
I
GCNERAl
INf ORMATION
I
-I.
GTNERAL
INfOR'IIAIION.
l-2.
The
-hp-
Models 461Aand462A
Wide
Band
Am-
plifierscanfaithfullyamplifybothsinusoiahl
and
coD-
plex
sigmlsinthe
1
KHz
to
150
MHz range. TheModel
461A
is best suited
for
sinusoidal
inputs,
andthe
Model
462A
i6
desigaed
for
complex
and
pulse
inputs.
The
Model
461A
flequencv
response
i6
+1 db
flom
1
KHz
to
150
MHz.
The Model
462A
ris€
and
fall tihes
are
less
than 4
mnoseconds. Either
40
db
or
20
db
gain
can be
select€d
with
the
frontpanel
GAIN
(DBswitch.
The Models
461A and
4624
are
shown
in
rigu€
1-1.
The
spe.ilications
ol
borh
insirmenls are
given in
1-3.
Sinc€
the Models
461A and
462A
are
nearly
id€n-
tical,
this
manual
will
discuss
the
instruments
in
terms
ofthe Model
461A.
The Model
462A
ll'iU
be mentioned
only
wh€n
its
operation
diflers flom
that
of
th€ Model
461A.
I
-4.
ACCESSORTES
AVAtLABtE.
1-5.
The
-hp-
11048A
50-ohn feedthrough termi-
nation
is
an
available accessory that
is
comected
at
the output oI the Model
461A.
The
f€edthroughtermi-
Dtion
should
be used to
ensure
tt'at
the
Model 46lA
is opeEting
into
its
rated
impedance
in
the
event
the instrument
is
comected to a device
with
an
im-
pedance
greater
than
50
ohms.
A
Table
1-1.
Specifications
MODEL
461A
I'requency
Range:
1
KEz
to
150
MHz
I'requency Response:
+1
db,
I
KHz
to
150
MHz,
when
operating into
a 50-ohm
resis-
tive
load
(500
KEz
r€ference).
Crain
at
500
KHz:
40
db
+0. 5
db;
or
20
db
+1,0
db,
select€d
by
llont
panel
switch.
Output
is irvert€d with
respect to
input.
Outputr 0.5
$.5
volts rms into
50-ohm
resistive
load.
Distortior:
Less
than
5%
at
maximum
output
and
rated
load.
MODEL
462A
Pulse
Response:
Rise and
Fall
Time:
Less
than
4
nano-
Over
and
Undershoot: Less tllan
5%.
Gain:
40 db
or
20 db
selected
by
front
panel
switch.
Output
is
inv€rted witlr
!€spect to
input.
Pulse Dumtion
for
10%
Droop:
30
psec.
Output:
1
volt peak-to-peak into
50-ohm
Delay:
Nomtnally
12-14 .anoseconds.
GEMRAL
(461A and 462A)
Ma-ximum
Input:
1
volt rms or
2
v
p-to-p.
Maximum
DC
Input:
+2
volt6.
Overtoad
Recov€ry: Less
than
1
psec
for
10
times
overload.
Equi€lent
lnput
Noise
Leve|
Less
than 40
microvolts in
40 db
position.
Input
Imp€dance:
50
ohms, nomillal.
Power
Supplyr
115
or
230
v
+107d, 50
to
1000
heriz,
5
watts-
Dimensions:
3-14132"
(8.
?
cm) wide
x
11"
(2?.9
cm) lonq.
Weisht: Net:
a
lbs (1.8 Ke). Shippins:
6
lbs
(2. ?
Kg).
Accessory
F
rmished:
Detachable Power
Cord
Accessory
Arailabl€: -hp-
11048A
50-ohm
through
termir,ation.
A
01358-3
1-1
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