Technical data

Agilent B2900A Configuration and Connection Guide, Edition 1 2- 5
B2900A Accessories
Adapters & Connectors
2.2 Adapters & Connectors
For connecting a DUT, you can choose the connection type 2-wire connection or 4-wire
connections. If you want to simplify the connections, use the 2-wire connections by
connecting the Force terminals only. Then open the Sense terminals. The Force terminals
can be used to apply and measure dc voltage or current.
To make the 4-wire connections, remote sensing, well known as Kelvin connections, uses
both Force and Sense terminals. Connecting the Force and Sense lines together at the
terminal of the DUT minimizes the measurement error caused by the residual resistance of
the test leads or cables. This connection is effective for the low resistance measurement and
the high current measurement.
Before connecting to a DUT, specify suitable connection method on the B2900A series and
select required adapters.
Figure 2-1 B2900A Front Terminals
Figure 2-2 Simplified SMU Circuit Diagram
High Sense, for 4-wire connection
High Force
Guard
Chassis ground
Low Force
Low Sense, for 4-wire connection
High Force
Chassis ground
V
A
+
-
+-
High Sense
4-wire connection
Low Sense
Low Force
High Force
Chassis ground
V
A
+
-
+-
Low Force
2-wire connection