Rohm BU4066BCFV Technical Note
Summary
These general-purpose CMOS Logic ICs are high-voltage multi-switches and multiplexers designed for reliable selection and switching of both digital and analog signals. Featuring low power consumption and a wide operational voltage range, these components serve as ideal ON/OFF or changeover switches in demanding electronic applications. The accompanying manual provides comprehensive technical specifications, including detailed electrical characteristics, recommended operating conditions, and application guidelines for designers building communication devices, office automation equipment, and audio-visual systems requiring signal integrity.
Page 1 Text Content
General-purpose CMOS Logic IC Series (BU4S,BU4000B Series)
High Voltage CMOS Logic ICs <Analog Switch> BU4066BC,BU4066BCF,BU4066BCFV,BU4051BC, BU4051BCF,BU4051BCFV,BU4052BC,BU4052BCF,BU4052BCFV, BU4053BC,BU4053BCF,BU4053BCFV,BU4551B,BU4551BF,BU4551BFV No.11050EBT05
●Description BU4066BC series ICs each contain 4 independent switches capable of controlling either digital or analog signals. BU4051BC / BU4052BC / BU4053BC / and BU4551B series ICs are analog selectable composite multiplexer/demultiplexer. BU4051BC series is configured with 8 channels, BU4052BC is configured with two 4 channels,BU4053BC series is configured with three 2 channels, BU4551B series is configured with four 2 channels, and switches applicable for each channel are turned on according to digital signals of control terminal. Even if the logic amplitude (VDD-VSS) of the control signal is small, signals of large amplitude (VDD-VEE) can be switched.
●Features 1) Low power consumption 2) Wide operating supply voltage (3[V]~18[V]) 3) High input impedance 4) L-TTL2 input and LS-TTL1 can be driven directly. 5) Applicable channel switches can be turned “ON” and “OFF” by the digital control signal. 6) Small control voltage (VDD-VSS) can control signals of large amplitude (VDD-VEE). 7) Linearity with excellent transfer characteristics
●Use This product is used as the switch and chopper modulation circuit of analog and digital signals. Since ON resistance of each switch is low, the product can be connected to low impedance circuit. The product can be used as ON/OFF switch and changeover switch of high-speed lines without degrading analog signals such as voice and images.
●Lineup
BU4066BC/
High Voltage CMOS Logic
BU4066BCF/ (Quad-analog switch)
circuits switch
Analog Switch BU5066BCFV
BU4051BC/
8 to 1
BU4051BCF/ (8ch analog multiplexer/demultiplexer)
circuits multiplexer
BU4051BCFV BU4052BC/
4 to 1
BU4052BCF/ (Dual 4ch analog multiplexer/demultiplexer)
circuits multiplexer
BU4052BCFV BU4053BC/
2 to 1
BU4053BCF/ (Triple 2ch analog multiplexer/demultiplexer)
circuits multiplexer
BU4053BCFV BU4551B/
2 to 1
BU4551B F/ (Quad 2ch analog multiplexer/demultiplexer)
circuits multiplexer
BU4551B FV
www.rohm.com 2011.08 - Rev.B
© 2011 ROHM Co., Ltd. All rights reserved.
Page Summary Contents For Rohm BU4066BCFV Technical Note
Manual Details
| Brand | ROHM |
|---|---|
| Pages | 18 |
| File Size | 399.47 KB |
| Published | June 19, 2026 |
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Frequently Asked Questions
What operating voltage range is supported by this IC series?
The devices support a wide operating supply voltage ranging from 3V to 18V.
Can I control large analog signals with low-voltage digital control?
Yes, a small control voltage (VDD-VSS) can successfully turn switches ON/OFF for much larger amplitude signals (VDD-VEE).
How is this IC primarily used in electronics?
It functions as an analog and digital switch or chopper modulation circuit suitable for high-speed line changeover.
Are these chips safe for use in mission-critical systems like medical devices?
No, the products are specifically not designed for equipment requiring extremely high levels of reliability (e.g., medical or aerospace instruments).