CA3046

The CA3046  (P/N 156-0048-00) is a transistor array monolithic integrated circuit (aka LM3046). 156-0068-00 is the same part selected to V_CEsat ≤0.4 V.

The CA3086 (PN 156-0197-00) / LM3086 is identical but has no guaranteed V_os/I_os specs.

Other possible alternatives include the NTE912.

The IC contains five 15 V, 50 mA, 120 MHz Si-NPN transistors. One pair has a common emitter pin.

Used in

• 7104 (Q924, Q4508)
• 7403N
• 7503 (U99, U636, U644, U840, U870, U890, U920, U960)
• 7B53A
• 7D12 M3 RMS plug-in
• FG504 (U1495 – CA3086)
• S-52
• Telequipment D34 (IC601, IC701)
• Z-axis circuit in several 7000-series mainframes (e.g. 7603, 7613, 7623, 7633, ...)
• and others

Some instruments using part CA3046

Instrument	Manufacturer	Class	Model	Description	Introduced
4601	Tektronix	Printer	4601	Printer	1970
7104	Tektronix	Oscilloscope	7104	1 GHz mainframe with MCP CRT	1978
7403N	Tektronix	Oscilloscope	7403N	65 MHz non-storage mainframe	1970
7503	Tektronix	Oscilloscope	7503	90 MHz non-storage mainframe	1970
7603	Tektronix	Oscilloscope	7603	100 MHz non-storage mainframe	1972
7613	Tektronix	Oscilloscope	7613	100 MHz variable-persistence storage mainframe	1972
7623	Tektronix	Oscilloscope	7623	100 MHz multi-mode storage scope	1972
7633	Tektronix	Oscilloscope	7633	100 MHz multi-mode storage mainframe	1974
7B53A	Tektronix	Plug-in	7B53A	100 MHz dual timebase	1973
7D12	Tektronix	Plug-in	7D12	digital meter plugin	1974
DM502	Tektronix	Plug-in	DM502	basic 3½ digit digital multimeter	1975
FG504	Tektronix	Plug-in	FG504	40 MHz function generator	1976
FG507	Tektronix	Plug-in	FG507	sweep function generator	1980
Keithley 227	Keithley	Power supply	227	Current source	1976
S-52	Tektronix	Plug-in	S-52	pulse generator	1971
Telequipment D34	Telequipment	Oscilloscope	D34	portable 15 MHz 2-ch scope	1979

Data

• Texas Instruments LM3046 Datasheet
• National Semiconductor LM3045/LM3046/LM3086 Datasheet
• Intersil CA3046 Datasheet, 2001
• Intersil CA3046 transistor SPICE model, 1997

Diagrams

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  LM3046 Pinout