LeCroy DA18000AC, Instruction Manual

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Performance Verification
DA18000AC-OM-E Rev A
7-1
7
Performance Verification
INTRODUCTION
This procedure can be used to verify the warranted characteristics of the DA18000AC Differ-
ential Amplifier.
The recommended calibration interval for this amplifier is one year. Test results can be
recorded on a photocopy of the Test Record provided in Appendix A.
Performance Verification can be completed without removing any covers or exposing the
user to hazardous voltages. No adjustments are provided.
In the unlikely event that the amplifier should fail the performance verification, it can be sent
back to the local service center or the factory. For information on returning the amplifier refer
to Section 5, Care and Maintenance.
This procedure tests the DA18000AC for the following warranted specification:
• Rise time
TEST EQUIPMENT REQUIRED
Table 7-1 lists the test equipment and accessories, or their equivalents, that are required for
performance verification of the DA18000AC Differential Amplifier.
This procedure has been developed to minimize the number of parameters required to be
calibrated in the test instrumentation.
Only the parameters listed in boldface in the “Minimum Requirements” column must be cal-
ibrated to the accuracy indicated.
Because the input and output connector types may vary on different brands and models of
test instruments, additional adapters or cables may be required.
Table 7-1. List of Required Equipment
Description Minimum Requirements
Test Equipment
Examples
Oscilloscope, High BW SDA 18000 LeCroy: SDA 18000
Step Generator, Differential Differential output with
deskew capability
T
r
≤
20 ps
V
out
≈
200 mV
LeCroy WaveExpert
oscilloscope with two ST-
20 TDR sampling
modules
Attenuator, 2 ea. 6 dB, female-female, type K Supplied with
DA18000AC
Type K coaxial cable, 2 ea. male-male, type K, 50
Ω
Supplied with DA1800AC
Connector Saver female-female, type K Supplied with ST-20
Torque Wrench 8 in.-lbs. LeCroy: TW-8