Agilent Technologies Agilent E5250A Agilent E5255A Product Description, Bias Input, IV Input

Introduction

Agilent E5255A Product Description

Agilent E5255A Product Description

The E5255A 24 (8⋅3) Channel Multiplexer is a 2-input to 24-output multiplexer card for the E5250A. The E5255A consists of 3 blocks (three 2⋅8 multiplexers). So, one E5255A can be configured as a 2⋅8 multiplexer, 2⋅16 multiplexer, or 2⋅24 multiplexer. "2-input" means one BIAS input and one IV input.

The E5255A is designed for semiconductor device reliability testing which needs to automatically scan instrument input/output for many DUTs.

A maximum of four E5255As can be installed in the E5250A, which can use the multiplexers in several configurations. For example, the E5250A can configure twelve 8-output multiplexers, six 16-output multiplexers, four 24-output multiplexers, three 32-output multiplexers, two 48-output multiplexers, or one 96-output multiplexer.

The E5255A block diagram is shown in Figure 1-5.

BIAS Input	The BIAS INPUT ports are used to apply ac or dc bias to DUT.
	BIAS INPUT ports are BNC connectors. Each BIAS INPUT
	port is assigned to a 2⋅8 multiplexer block as shown in Table
	1-2. And you can make internal connections to connect a BIAS
	INPUT port to multiple blocks. Refer to Chapter 2.
IV Input	IV input is used for measuring/forcing dc current/voltage. You
	can connect the IV input to desired SMU INPUT connector
	(SMU1 to SMU6) of the E5250A by making an internal
	connection. Refer to Chapter 2. The E5250A AUX INPUT
	connectors are not used with the E5255A.
OUTPUT
Connectors	The E5255A has three 8-channel coaxial output connectors as
	shown in Figure 1-6. Each output connector is assigned to a 2⋅8
	multiplexer as shown in Table 1-2.

1-8 Agilent E5250A User’s Guide, Edition 9