HP 3490A - Page 13

Table
1-1.
Specifications
(Cont,d.)
SAMPLE/HOLD
(OPtion
040/0451
Full-range
Display:
Sample/Hold
Measurement
Accuracy
(DC
function,
I V through
1ü)0 V
ranges!:
r
1.00fi) v
+
10.q)0
v
!
100.00
V
r
1000.0
v
24
hours
(23o
c
r
10
c)
30.days
(23o
c
r
so c)
90 days
(23o
c
r
so
c)
6
months
(239
C
r
So C)
1
year
1230 c
r
so cl
t
(%
of reading
+
oÄ
oI
rcngel
Sample/Hold
measurement
displar/
is
4 full
digits
plus
overrange
"1 ",
r
{0.01
+0.0151
r
(0.01
+
0.015)
r
(O.01
+
0.015)
r
(0.02
+
0.0151
I
(o.02
+
0.015)
50o
C)r
t
!O.OO2 % ol
Ovrrangs: 2O%on all
range5
except
IOOO
V range.
Temperature
Coefficient
(04
C to
reading
+
0.0O1
% of range/o
C).
Model34904
Maximum Input Voltages:
Between Input High
and
Low:
t
10O0
Vrms
(1
1500
V
peak)
Between
either
Low terminal
and
Guard: I
200 V
Between
Guard and
Chassis:. 4
500 V
Between O Signal High and
Low: t
250
Vrms
Range
Seleaion: Manual,
autornatic,
or
Remote
(Optionall
Maximum
Reading
Rate
(Minimum
Sample
periodr
per
Readingl:
Function
Option
050
Option
060
DC
Volts
AC
Volts
Ohms
.1 kto
100
k
1,000
k
10.oo0
k
240.2ms+5ms
1.26s
+
.025s
24O.2ms+5ms
3O0.2ms+6ms
66O.3 ms
+
12
ms
200.1
ms+4ms
1.05s
+
.025s
20O.1
ms+4ms
250.1
ms+5ms
55O.2
ms
*
10 ms
'Sample
Rate
Control
set to FAST
position
and instrument
not
in
owrload.
Response
Time
(to
within
rated
accuracy
for
a
step input
applied
coincident
with
encode
triggerl:
DC
Volts:
(
200
ms
ACVolts:
<lsecond
Ohms:
0.1
k
to 100
k ranges:
(
200
ms
10O0
k range:
(
2S0
ms
10,OO0
k range:
(
5SO ms
.:
Ohms
Terminal
CharacteristiG3:
Maximum
voltage
across
unknown
resistance:
25 V
in
overload
1 3 V
for
valid
reading
Nominal
current
through
unknown
resistance:
O.1
k to
10 k
ranges:
.l
mA
100
kand
1000
k ranges:
10
pA
10,000krange:
l
rtA
Overload protection:
Nondestructive:
r
2SO
V
Fusedestructive:
r
10OOV
Power
Raquirements:
10o
v,
120
V
,22O
V
,
or
24O
y
l+
5
%,
-
1O %l;
48
Hzto
44O Hz
Power
Consumption:
<60
VA
with
all options
Environmental
Characteristics:
Operating
Temperature:
Oo
C to
5Oo
C
Humidity
Range:
(
g5
% relative
humidity,
Oo
C to
4Oo
C
Storage
Temperature:
-
2Oo
C
to
+
75o C
Section
I
Table 1-2.
General
Information.
GENERAL
PURPOSE
INTERFACE
BUS
(ourguard)
ground
is
isolated
from
inguard
circuit
common
(input
Low terminal!
and chassis
{power tine)
ground
and
may be
floated
a
maximum
of
40 V
above
chassis.
SAMPLE/HOLD
Acquisition
Time
(Settling
tam6
for
a
f
ult+ange
slep
inputl:
GENERAL
PURPOSE
INTERFACE
BUS
LOGIC
LEVELS
All lines
are
LOW true
except
HRFD
and HDAC,
which
are
HIGH
true.
Input
Signals:
Each
input
line is terminated
with
3 kslto
+
S V
and
6.2 ke
to
ground,
and
one
TTL load.
Output
Signals:
Each
output
can
drive 15
GplB loads.
The
output
is
an
open-collector
driver
capable
of sinking
4g
mA
at 0.4
V
out-
Maximum
Acquisition Time
to
Range
within
0.Ol
%
of Final
Value
Aperture
Time
(Delay
betwsen
the
time
a
Sample/Hold
Trigger
/''
command
h
receiwd
and
the time
Amplifier
A
entors
the
Hold
model:
Track/Hold:
(
400 ns
(typically
22O nsl; cVcle-to_clrlcle
vari-
ation<t10ns.
Acquire/Hold:
1V,
100
V ranges
615
rls
t
4O0 ns
512.6
lls
r
zl00
ns
10
V, 1000
V
ranges
154
6
t
40O ns
129.4
tts
t
4OO
ns
Sample/Hold
Trigger
I nputs:
$Tp]9/!9!d
TTL
Trisser
(dc
coupted):
lnput must
go
from
HIGH
()+
2.4
V) to
LOW
{<+
0.4
V}
for
at teast
30
ns.
Signal
must
be HIGH
at least
600
ps
prior
to
going
LOW.
Must
be
capable
of
sinking
I mA.
Sample/Hold
AC
Trigger
(ac
coupled):
Negative-going
leading
edge
of
a
pulse
at least
30 ns
wide
and having
an
amditude
of
2
V to
2O0
V.
Signal must
be stable
at least
2
1ts
Drior
to
negtive-going
transition.
l-5
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