Agilent/Keysight E1345A

The Agilent/Keysight E1345A is a B-size, 1-slot VXI reed relay multiplexer engineered for low-offset analog switching in test systems. This register-based module delivers flexible channel configurations—operating as a single 1×16 three-wire multiplexer, two independent 1×8 three-wire multiplexers, or a 1×8 six-wire multiplexer—making it suitable for both DC measurements and four-wire resistance applications. With thermal offset below 4 µV and a typical scanning rate of 600 channels/s, the E1345A provides precision switching for sensitive signal conditioning tasks.

– Technical Specifications

Switching Architecture
• Channel configurations: 1×16 three-wire, dual 1×8 three-wire, or 1×8 six-wire
• Switch type: Low thermal offset reed relay
• Thermal offset: < 4 µV
• Scanning rate: 600 channels/s (typical)
• Maximum voltage: 120 Vdc / 120 V rms AC (terminal to terminal or chassis)
• Maximum current per channel: 50 mA (non-inductive common)
• Rated load: 10E7 operations

Physical & Interface
• Module size: B-size, 1-slot
• Component card: E1345-66201
• Connections: Screw terminal block (sold separately)
• Terminal block wire size: 16 to 26 AWG (1.5, 1.2, 0.9, 0.75, 0.5 mm)
• Analog bus: Connections available for slot-adjacent module interconnection

– Key Features

• Ultra-low thermal offset specification ideal for precision analog measurements
• Multiple topology configurations from single card—reconfigure via terminal block swaps
• Register-based control for straightforward integration into automated test systems
• High relay cycle rating supports extended production testing
• Screw terminal connections accommodate various wire gauges

– Compatibility & Integration

The E1345A installs directly into B-size VXI mainframes (Agilent E1300B, E1301B) or C-size mainframes with the E1403C active adapter. The module shares its switch card with the E1343A, E1346A, E1347A, E1355A, and E1356A, enabling topology reconfiguration through terminal block selection. Each unit ships with one analog bus cable for connecting common outputs of slot-adjacent modules. B-size mainframe users can employ the analog bus cable supplied with the E1326B DMM for additional connections.