A Tektronix Company
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6521 SPECIFICATIONS
CHANNELS PER CARD:
10.
FUNCTIONS:
Amps.
CONTACT CONFIGURATION:
Single pole, “break-before-
make” for signal HI input. Signal LO is common for all 10
channels and output. When a channel is off, sig nal HI is
connected to signal LO.
CONNECTOR TYPE:
Inputs BNC, Outputs Triaxial.
SIGNAL LEVEL:
30V, 500mA, 10VA (resistive load).
CONTACT LIFE:
>10
6
closures at maximum signal level;
>10
7
closures at low signal levels.
CONTACT RESISTANCE:
<1
Ω
.
CONTACT POTENTIAL:
<200µV.
OFFSET CURRENT:
<1pA (<30fA typical at 23°C, <60%
RH).
ACTUATION TIME:
2ms.
COMMON MODE VOLTAGE:
<30V peak.
ENVIRONMENT:
Operating:
0° to 50°C up to 35°C at 70%
R.H.
Storage:
–25° to 65°C.
6522 SPECIFICATIONS
CHANNELS PER CARD:
10.
FUNCTIONS:
Volts, Amps.
CONTACT CONFIGURATION:
Single pole, “break-before-
make” for signal HI input. Signal LO is common for all 10
channels and output. When a channel is off, signal HI is
connected to signal LO. 6517B can also configure chan-
nels as voltage switches.
CONNECTOR TYPE:
Inputs: Triaxial. Outputs: Triaxial.
SIGNAL LEVEL:
200V, 500mA, 10VA (resistive load).
CONTACT LIFE:
>10
6
closures at maximum signal level;
>10
7
closures at low signal levels.
CONTACT RESISTANCE:
<1
Ω
.
CONTACT POTENTIAL:
<200µV.
OFFSET CURRENT:
<1pA (<30fA typical at 23°C, <60% RH).
CHANNEL ISOLATION:
>10
13
Ω
, <0.3pF.
INPUT ISOLATION:
>10
10
Ω
, <125pF (Input HI to Input LO).
ACTUATION TIME:
2ms.
COMMON MODE VOLTAGE:
<300V peak.
ENVIRONMENT:
Operating:
0° to 50°C up to 35°C at 70%
R.H.
Storage:
–25° to 65°C.
OUT
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L
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IN 1
H
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IN 10
IN
2...9
G
OUT
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L
H
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IN 1
H
L
IN 10
IN
2...9
G
G
G
6517B
Electrometer/High Resistance Meter
Accessories Extend
Measurement Capabilities
A variety of optional accessories can be used to
extend the 6517B applications and enhance its
performance.
The 8009 Resistivity Chamber is a guard ed test
fixture for measuring vol ume and sur face resis-
tivities of sam ple mat er ials. It has stain less-steel
elec trodes built to ASTM stan dards. The fixture’s
elec trode dimensions are pre- programmed into
the 6517B, so there’s no need to calculate those
values then enter them man ually. This accessory
is designed to protect you from contact with
potentially hazardous voltages —opening the
lid of the cham ber automatically turns off the
6517B’s volt age source.
6521 and 6522 Low Current, 10-Channel
Scanner Cards
Two optional 10-channel plug-in scanner
cards are available to extend the measurement
performance of the 6517B Electrometer/High
Resistance Meter. The cards install directly into
the option slot in the back panel of the 6517B.
The cards are also compatible with the 6517A
and 6517.
The 6521 Low Current Scanner Card is a
10-channel multiplexer, designed for switching
low currents in multipoint testing applications
or when the test configuration must be changed.
Offset current on each channel is <1pA and high
isolation is maintained between each channel
(>10
15
Ω
). The 6521 main tains the current path
even when the channel is deselected, making it a
true current switch. BNC input con nectors help
provide shielding for sensitive measurements
and make the card compatible with low noise
co axial cables. The 6521 is well suited for auto-
mating reverse leakage tests on semiconductor
junc tions or gate leakage tests on FETs.
The 6522 Voltage/Low Current Scanner Card can
provide up to ten channels of low-level current,
high impedance voltage, high resistance, or
charge switching. Although it’s similar to the
6521 in many ways, the 6522’s input connectors
are 3-lug triax. The card can be software con-
figured for high im pe dance voltage switching of
up to 200V. Triaxial connectors make it possible
to float the card 500V above ground and drive
guard to 200V.
8009 Resistivity Chamber is compliant with
American Society for Testing and Materials
(ASTM) Standard D 257 Standard Test
Methods for DC Resistance or Conductance
of Insulating Materials. The 8009 combined
with the 6517B provides a complete system
for making high quality, safe resistivity meas-
urements.
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