Keithley 236 Service Manual

SPECI
FICATIONS
SOURCEMEASURE
UNIT:
Sources voltage
while
measuring
cur
rent,
or
sources
current
while measuring
vo1tage
FUNCTION:
Can
be used
as DC
source or meter, sweep
source, or
full
source-measure unit.
SOURCEDELAY-MEASURE
CYCLE:
Source
SourceDe1ayMeasure
Cycle
L
Default
Delay
J
Measure
Delay
Inteation
Time
Default
Delay: Fixed
delay
for instrument settling.
User
Delay:
Additional
delay
for device
under
test or system ca
pacitance.
MEASURE:
Integration Time:
Fast
416
isec.
Medium
4
msec.
Line
Cycle 16,67
msec.
(60
Hz)
20.00
msec.
(50 Hz)
Elapsed
Time:
Measures and
stores
time from
sweep trigger
to
measurement
complete
for
each
step of sweep.
RANGING:
Source:
Auto-ranging
through
keypad entry; fixed range
selection
using
rotary dial
and
SELET keys
(DC function).
Fully pro-
grammable in
SWEEP
function.
Measure:
Auto
or fixed
range. Fixed
range selection made
by
choice
of
COMPLIANCE
value.
FILTER: Takes
n
measurements,
caiculates
and outputs average
(n =
2,
4,
8,
16, or 32,
selectable).
SUPPRESS: Subtracts displayed
measurement
from
subsequent read
ings.
MENU:
DC
Measurement
Delay,
Default Delay
On/Off,
Local/
Remote
Sense,
50/60Hz,
IEEE
Address,
Seif Tests.
DATA
ENTRY:
Numeric
keypad or
detented
rotary dial.
TRIGGER:
Input
and Output:
Set
for
any phase
of
SOURCE-DELAY
MEASURE
sequence or trigger
output
at end
of
sweep.
Origin:
Internal,
External
(including
front panel
MANUAL
TRIGGER
button),
IEEE-488
bus
(TALK,
GET,
“X“).
MEMORY: Stores one full
sweep (up
to
1000
points) ofsource,
delay,
and measure
values,
elapsed
times, and
sweep parameters.
Lith
ium
battery
backup.
INTERLOCK:
Use
with
test fixture or
external switch. Normally
closed;
open puts
instrument
in
standby.
RANGE
ACCURACY
ACCURAC
(Max.
STEP
(1
Year, RESOLUTION
(1
Year,
Value)
SIZE
18°-28°C)
4-Digit 5-Digit
18°-28°C)
±1.1000W
100 iV
±(O033%+650
tV
100
tV
10
jiV
±(O.028% +
300jiV
+
[Io/IF]
X
450jtV)
+
[1o/IFSI
X
45OtV)
±11.000V
1 mV
±(O033%+
2.4mV) 1
mV 100
iV
±(O.025%÷
lmV)
±110.00V 10 mV ±(O.033%+
24mV)
10
mV
1 mV
±(O.025%+
lOmV)
±1100.0V 3 100 mV
±(O04 %+24OmV)
100 mV
10 mV
±(O035%+lOOmV)
10 =
Output current
‘n
Fiill
scale
on selected current range
1
Specifications apply
for 5-digit resolution. For 4-digit
resolution
add lOOppm
of range.
2
Assumes
remote seine for 1
>
1OOtA.
3
1100V range available on Model
237
only.
COMPLIANCE: Bipolar current
limit
set
with single
value.
Maximum:
±lOOmA
(except ±lOmA on
1100V range in
Model
237).
Minimum:
±0.1%
of range, except
0.5%
of
1.1V range.
Accuracy, Step
Size: Same
as current source.
NOISE
(p-p):
Range
0,1—10Hz
110v—1100v < 3ppm
of
range
11
V < 3ppm of range
1.1
V
<loppm of
range
WIDEBAND
NOISE:
0.1
to
20MHz, 8mV
p-p
typical.
OVERSHOOT:
<0.01%
(110V
step,
lOmA range).
SETTLING TIME:
<500j.tsec. to
0.01%
(110V
step,
lOmA
range).
NMRR:
>60dB
at5O
or 60Hz
(LINE
CYCLE integration time
selected).
CMRR:
>120dB
at
DC,
50
or
60Hz
(LINE
CYCLE
integration time
selected).
INPUT IMPEDANCE
(as
a
voltmeter):
>10142
paralleled
by
<2OpF.
CURRENT
SOURCE 1
MEASURE 1
RANGE ACCURACY ACCURACY‘
(Max.
STEP
(1
Year,
RESOLUTION
(1
Year,
Value)
SIZE
18°—28°C)
4-Digit
5-Digit
18°—28°C)
±10000
nA 100 fA ±(0.3
%+450
fA)
100 fA 10 fA ±(0.3
%+100 fA) 2
±10.000
nA
1 pA
±(0.3
%+
2
pA) 1 pA 100
fA
±(0.3
%+ 1 pA)
±10000
nA 10
pA
±(0.21%+
20 pA) 10 pA 1 pA
±(021
%+
6
pA)
±1.0000 tA 100 pA
±(0.05%+200
pA)
100 pA 10 pA ±(0.04
%+
60
pA)
±10000 iA
1 nA ±(0.05%÷
2
nA)
1 nA 100
pA
±(0035%+700 pA)
±10000 tA 10
nA ±(0.05%+
20
nA)
10 nA 1 nA
±(0.035%+
6
nA)
±1.0000 mA 100 nA
±(0.05%+200
nA)
100 nA
10
nA
±(0.035%+
60
nA)
±10.000 mA
1
iA
±(0.05%+
2
A) 1 iA 100
nA
±(0.038%+600 nA)
±10000 mA 10
tA
±(0.1
%+
20
jiA) 10 iA 1
jiA
±(0.1
%+
6
iA)
1
Spedfications applyfor
5-digit
resolution.
For4-digit resolution, all offset
terms
arc
200ppm of
range.
2
Offset
specification applies
for
23°C ± 1°C with suppression.
Temperature
coefficient
5OfA/°C.
COMPLIANCE:
Bipolar voltage
limit
set
with single value.
Maximum: ±1100V (except ±110V on
lOOmA
range in Model
237).
Minimum: ±0.1%
of
selected current range.
Accuracy,
Step Size: Same
as voltage
source.
NOISE
(p-p
of range): 0.1—10Hz:
<3ppm (<20ppm
on inA
and
lOnA
ranges).
OVERSHOOT:
<0.01% typical
(lOmA
step,
RL
=
lOk2).
SETTLING TIME:
<500jisec.
to 0.01%
(lOmA
step, R =
lOk2).
OUTPUT R,
C:
>10142
paralleled by
<2OpF
(on
inA range).
VOLTAGE
BURDEN
(as
an
ammeter):
<lmV.
VOLTAGE
SOURCE V
MEASURE V
4
digit
resolution
5
digit
resolution
5
digit
resolution

Keithley 236 Specifications

General

Brand	Keithley
Model	236
Category	Measuring Instruments
Language	English