Keithley 3706A Reference Manual

Section 8: Theory of operation Series 3700A System Switch/Multimeter Reference Manual
8-10 3700AS-901-01 Rev. D/June 2018
V
MEAS
includes the voltage drops of the input test leads (Input HI and Input LO). Therefore, the actual
voltage drop across the DUT is V
MEAS
minus the two voltage drops in the test leads. Because
matched inputs are used, the voltage drop is 2 × V
LEAD
. Therefore:
V
DUT
= V
MEAS
– 2(V
LEAD
)
Figure 111: Four-wire ratiometric method

Keithley 3706A Specifications

General

Model	3706A
Category	System Switch/Multimeter
Voltage Range	100 nV to 300 V
Basic DC Voltage Accuracy	0.0035%
Basic Resistance Accuracy	0.01%
Maximum Channels	576
Maximum Voltage	300 V
Connectivity	LAN, USB, GPIB
Interface	LAN, USB, GPIB
Switching Matrix	Yes
Channels	576 (6-slot mainframe)
Maximum Current	3 A