Tektronix 451x-QIVC User manual
Model 451x-QIVC Series
The 451x-QIVC cards incorporate four independent, isolated measurement channels on a single card.
Each channel consists of a:
• Programmable multi-range current source with programmable voltage clamp, source read-back, and precision voltage measurement.
• Programmable voltage source with source read-back and precision multi-range current measurement.
The 451x-QIVC cards are recommended for use only with the 4500-MTS Product.
CURRENT SOURCE
Programming Acc uracy (1 Year)
Range Model
±30.0000mA 4510
±100.000mA 4510/11
±300.000mA 4511
±500.000mA 4510
±1.000A 4511
Programming
Resolution
2µA
5µA
15µA
25µA
50µA
±(%rdg. + amps + amps*|(|V
0.08%
0.08%
0.08%
0.08%
0.08%
(23ºC ±5ºC)
|-|IO/Ifs|)|)5
O/Vfs
7.4µA 4.3µA
25µA 14.3µA
75µA 43µA
122µA 72µA
250µA 144µA
Range Model
±30.0000mA 4510
±100.000mA 4510/11
±300.000mA 4511
±500.000mA 4510
±1.000A 4511
Default
Measurement
Resolution
0.1µA
1µA
3µA
5µA
10µA
Measurement Accuracy (1 Year)
(23ºC ±5ºC)
±(%rdg. + amps + amps*|(|V
0.065%
0.065%
0.065%
0.065%
0.065%
2.5µA 4.3µA
8µA 14.3µA
12µA 43µA
20µA 72µA
40µA 143µA
O/Vfs
|-|IO/Ifs|)|)5
CURRENT OUTPUT SETTLING TIME: 150µs to 0.1% of final value typical, resistive load after command is processed 3.
CURRENT SOURCE SHORTING RELAY: Shorts load when output is turned off or when interlock condition exists.
CURRENT SOURCE OVERSHOOT: < 0.1%, full-scale step, resistive load.
CURRENT SOURCE LONG TERM STABILITY: ±20 ppm/hour typical, ±1ºC ambient, 30 minute warm-up required.
OVER TEMPERATURE PROTECTION: Internally sensed temperature overload puts unit in standby mode.
LOAD INDUCTANCE: 200µH maximum
4
.
Programming Accuracy (24 hr)
(23ºC ±1ºC)
±(%rdg. + amps + amps*|(|V
0.065%
0.065%
0.065%
0.065%
0.065%
3.5µA 4.3µA 100µA
13µA 14.3µA 100µA
40µA 43µA 200µA
42µA 72µA 250µA
84µA 144µA 500µA
Measurement Accuracy (24 hr)
(23ºC ±1ºC)
±(%rdg. + amps + amps*|(|V
0.065%
0.065%
0.065%
0.065%
0.065%
1.5µA 4.3µA
4µA 14.3µA
9µA 43µA
10µA 72µA
20µA 143µA
CURRENT SOURCE LOAD VOLTAGE MEASUREMENT
1
Default Measurement
Resolution
Programming Accuracy (24 hr)
(23ºC ±1ºC) ±(%rdg. + volts)
Range
Measurement Accuracy (1 Year)
(23ºC ±5ºC) ±(%rdg. + volts)
Measurement Accuracy (24 hr)
(23ºC ±1ºC) ±(%rdg. + volts)
±6.0000V 0.06% + 2mV 0.025% + 250µV 10µV
REMOTE/LOCAL SENSE: Automatic; remote sense and proper zero are required to meet rated accuracy.
REMOTE SENSE: Up to 0.5V drop from card bracket to DUT.
CURRENT SOURCE VOLTAGE COMPLIANCE:
Programming Accuracy (1 Year)
Range Programming Resolution
(23ºC ±5ºC) ±(%rdg. + volts)
±6.000V 200µV 0.1% + 4.7mV 0.07% + 3.7mV
MINIMUM COMPLIANCE VOLTAGE: 100 mV.
O/Vfs
O/Vfs
1
|-|IO/Ifs|)|)5
1
|-|IO/Ifs|)|)5
1
Noise Typical
(peak to peak)
0.1Hz – 150kHz
7
Typical
Output Slew Rate
mA/µs
.3
1
3
5
10
VOLTAGE SOURCE
6
Programming
Accuracy (24 hr)
(23ºC ±1ºC)
±(%rdg. + volts)
1
Default
Measurement
Resolution
Measurement
Accuracy (1 Year)
(23ºC ±5ºC)
±(%rdg. + volts)
Full Scale
Programming
Resolution
Programming
Accuracy (1 Year)
(23ºC ±5ºC)
±(%rdg. + volts)
±10.000V 400µV 0.1% +6mV 0.07% +4mV 10µV 0.1% + 1mV 0.06% +540µV
VOLTAGE OUTPUT SETTLING TIME: < 300µs to 0.1% typical, resistive load after command is processed 3.
VOLTAGE OUTPUT SLEW RATE: < 0.5V/µs typical, resistive load after command is processed.
VOLTAGE NOISE: 10µV RMS, 0.1Hz to 10Hz typical.
CURRENT LIMIT: 25mA typ ical
3, 8
.
MAXIMUM CAPACITIVE LOAD: 20nF on 10µA and 500µA range; 35nF on 10mA range.
2
Measurement
Accuracy (24 hr)
(23ºC ±1ºC)
±(%rdg. + volts)
1
HW 1/6/04
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MISCELLANEOUS
AUTOMATIC OFFSET COMPENSATION: The user can command the 451x-QIVC to disconnect itself from the device under test and measure and store any
offsets in the source and measure circuitry so that future measurements are appropriately compensated.
VOLTAGE SOURCE CURRENT MEASUREMENT
Range
±10.000uA 0.1% + 15nA 0.063% + 12nA .1nA
±500uA 0.1% +70nA 0.063% + 55nA 5nA
±10.0000mA 0.1% + 1.4µA 0.063% + 1.1µA 100nA
VOLTAGE BURDEN: < 14 mV 3.
Measurement Accuracy (1 Year)
(23ºC ±5ºC) ±(%rdg. + current)
Measurement Accuracy (24 hr)
(23ºC ±1ºC) ±(%rdg. + current)
1
Default Measurement
Resolution
OUTPUT RELAY ISOLATION
The GUARD signal is not isolated with a relay.
The following information applies when the output state is set to OFF-OPEN (HI-Impedance).
TYPICAL ISOLATION LEAKAGE CURRENT: 30nA
MAXIMUM ISOLATION VOLTAGE: 12V DC
MAXIMUM ISOLATION RELAY SETTLING TIME: 10ms
GENERAL SPECIFICATIONS
DIGITAL INTERFACE:
Safety Interlock:
• Customer provided closed contact on a per-channel basis, to enable output.
• On a channel group basis, opening of customer provided contacts disconnects the sources from loads on the Voltage Sourced and Current Source. 5-volt
level, 500Ω input impedance.
Supplies: +5V (fused ¾ amp) and Ground.
OVERRANGE: 105% of Range (Source Functions), 110% of Measure (Measure Functions).
COMMON MODE VOLTAGE: ±20V DC maximum.
WARM UP TIME: 1 hour.
OVER-TEMPERATURE: Two on-board over-temperature detectors.
ENVIRONMENT: Accuracy specifications are multiplied by one of the following factors, depending upon the ambient temperature and humidity.
% RELATIVE HUMIDITY
TEMPERATURE 5-60 60-70
WEIGHT (approx.): 0.9kg (2lbs)
Notes:
1. The 24 hour specification applies only for the 24 hour period immediately following an Auto-Offset, and ±1ºC of the temperature at which the Auto-Offset was performed, and within 1
year of calibration.
2. When I-SOURCE-LO and V-SOURCE-LO share a common connect ion, current flow through V-SOURCE-LO’s parasit ic ground resistance may cause up to 150mV of measurement
error. This error is limited to measurement only and does affect voltage source accuracy.
3. As guaranteed by design.
4. Includes cable inductance.
5. For example the total uncertainty of a current source of 1A on the 1A range into a perfect short of 0V would be:
(0.08% x 1A) + (250uA) + (144uA x | ( |0V/6V| – |1A/1A| ) |) = (80uA) + (250uA) + (144uA) = 474uA
The generic equation of the third error term is
6. Includes 2 meter accessory cable while excluding IR drop in DUT leads.
7. Slewrates apply for resistive loads: Rload< 200 Ω for 30mA range, Rload<60 Ω for 100mA range, Rload<12 Ω for 500mA range, and Rload<6 Ω for 1A range.
8. Hardware limited.
Specifications subject to change without notice
5
5
- <18
10
>285- 40
C X3 X3
5
185-28
C X1 X3
5
C X3 X5
Amps
V
out
V
FS
I
out
−∗
||||||
I
FS
HW 1/6/04
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