Keithley 7703 32-Channel High Speed Multiplexer Module

Artno.: KL1-977030
HAN: 7703
Manufacturers: Keithley

32-channel, High Speed, Differential Multiplexer Module

2.011,00 €

incl. 19% VAT

(1.689,92 € excl. VAT)

Out of stock

The 7703 is a plug-in module featuring multiplexer capabilities. It provides either 32 channels with 2-pole switching or 16 channels with 4-pole switching, configurable as two separate multiplexer banks. This module employs fast, non-latching reed relays, engineered to handle 300 volts and 500mA, with a 10VA rating. For convenience, relay closure states are stored in the module's built-in memory. With these specifications, the 7703 is particularly well-suited for temperature measurement applications using RTDs and thermistors.

Key Features

Equipped with 32 multipurpose measurement channels
Rapid relay switching with sub-millisecond actuation for efficient scanning
Flexible configuration supporting both two-wire and four-wire measurement techniques
Features dual 50-pin female D-sub connectors, enabling secure connections and facilitating quick setup and dismantling

Model Overview

Capabilities	Channels 1-32: Multiplex one of 32 2-pole or one of 16 4-pole signals into DMM
Maximum Signal Level	Channels (1–32): 300V DC or rms, 0.5A switched, 10W maximum

Contact Life (typ)	>5×10⁴ operations at max. signal level >10⁸ operations cold switching
Contact Resistance	<1Ω at end of contact life
Contact Potential	<±3µV typical per contact, 6µV max <±3µV typical per contact pair, 6µV max
Offset Current	<100pA
Connector Type	50 pin D-sub ×2
Relay Drive Current	20mA per channel
Isolation Between Any Two Terminals	>10⁹ Ω, <200pF
Isolation Between Any Terminal and Earth	>10⁹ Ω, <400pF
Cross Talk (1 MHz, 50Ω Load)	<–40dB
Insertion Loss (50Ω Source, 50Ω Load)	<0.35dB below 1MHz <3dB below 2MHz
Common Mode Voltage	300V between any terminal and chassis

Extended Specifications

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