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Agilent Plug-in Module Product Comparison

Product Comparison - 34970A & 34972A Data Acquisition Control Unit Module
Product Description Speed (Ch/Sec) Max Voltage Max Current Comments
34901A 20-ch. multiplexer (2/4-wire) 60 300V 1A 2 current channels (22 ch. total); built-in cold junction reference; connects to internal DMM
34902A 16-ch. multiplexer (2/4-wire) 250 300V 50mA Built-in cold junction reference; reed relays multiplex inputs to internal DMM
34903A 20-ch. actuator/GP switch 120 300V 1A Form C (SPDT) switches; no connection to internal DMM
34904A 4x8 matrix 120 300V 1A 2-wire, full crosspoint; no connection to internal DMM
34905A 2-GHz dual 1:4 RF mux, 50 ohm 60 42V 0.7A 1-GHz through provided BNC-to-SMB adapter cables; no connection to internal DMM
34906A 2-GHz dual 1:4 RF mux, 75 ohm 60 42V 0.7A 1-GHz through provided BNC-to-SMB adapter cables; no connection to internal DMM
34907A Two 8-bit digital I/O ports N/A 42V 400mA Open drain
26-bit, 100-kHz event counter N/A 42V   Gated, selectable input threshold
Two 16-bit analog outputs N/A ±12V 10mA Earth referenced, calibrated
        No connection to internal DMM
34908A 40-ch. single-ended multiplexer 60 300V 1A Common low, no 4-wire meas.  Built-in cold junction reference; connects to internal DMM
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