CD4066BF3A Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
The CD4066BF3A is a quad bilateral CMOS analog switch with four independent SPST channels rated at 40 MHz bandwidth. It operates from a single supply of 3 V to 18 V or dual supplies up to ±9 V, offering low on-resistance for precision signal routing. Packaged in a 14-pin CDIP ceramic package for reliability in extended temperature environments.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- CD4066BF3A Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $14.0829(MOQ 1)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Four independent SPST channels for simultaneous multi-signal switching
- 40 MHz bandwidth supports audio and intermediate-frequency signal routing
- Wide 3 V to 18 V single-supply range compatible with both CMOS and TTL logic control
- Bidirectional signal transmission with low on-resistance under 200 Ω
- 14-pin ceramic DIP package rated for military and extended industrial temperature ranges
Applications
The CD4066BF3A is used in analog multiplexing, signal routing, and sample-and-hold circuits where bidirectional switching of AC or DC signals up to 40 MHz is required. Its wide supply range makes it compatible with both legacy 5 V CMOS systems and modern 3.3 V microcontroller interfaces when level-shifting is applied. Audio crosspoint matrices, instrumentation front-ends, and communication switching circuits take advantage of its four independent channels to reduce external relay and discrete transistor count.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | Configuration : 1:1 SPST |
| Analog IC - Other Type | SPST |
| Bandwidth-Nom | 40MHz |
| JESD-30 Code | R-GDIP-T14 |
| JESD-609 Code | e0 |
| Neg Supply Voltage-Nom (Vsup) | -5 V |
| Normal Position | NO |
| Number of Channels | 4 |
| Number of Functions | 4 |
| On-state Resistance Match-Nom | 15Ω |
| On-state Resistance-Max (Ron) | 240Ω |
| Output | SEPARATE OUTPUT |
| Package Body Material | CERAMIC, GLASS-SEALED |
| Package Equivalence Code | DIP14,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| Screening Level | 38535Q/M;38534H;883B |
| Signal Current-Max | 0.025A |
| Supply Current-Max (Isup) | 0.15mA |
| Supply Voltage-Max (Vsup) | 15V |
| Supply Voltage-Min (Vsup) | 3V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Switch-off Time-Max | 70ns |
| Switch-on Time-Max | 70ns |
| Switching | BREAK-BEFORE-MAKE |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Tin/Lead (Sn/Pb) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| ## CD4066BF3A Alternates Showing results | Image |
| Package | Ceramic Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD4066BF3A:
Frequently Asked Questions
What is the bandwidth of CD4066BF3A and which signal frequencies can it reliably switch?
The CD4066BF3A is specified with a 40 MHz typical bandwidth, which covers audio signals (20 Hz to 20 kHz), video baseband, and many intermediate-frequency paths up to the UHF low band. At 40 MHz the insertion loss remains below 3 dB, making it suitable for AM/FM IF stages, analog data multiplexers, and switched-capacitor filter networks operating in the MHz range.
How does CD4066BF3A perform in dual-supply configurations compared to single-supply operation?
In dual-supply mode with ±5 V rails, the CD4066BF3A allows analog signals to swing symmetrically around ground up to approximately ±4.5 V peak, which is useful for audio and bipolar sensor interfaces. Single-supply operation at 5 V limits the signal range to 0 V to 4.5 V. In both modes the on-resistance is typically under 200 Ω and control inputs accept standard CMOS logic levels.
Can CD4066BF3A replace CD4016B in existing designs, and what is the key difference?
The CD4066BF3A is functionally compatible with CD4016B on most designs, but CD4066 has a significantly lower on-resistance of approximately 80 Ω at 5 V versus 300 Ω for CD4016B. This lower resistance reduces voltage drop across the switch, improving signal fidelity in precision analog paths. The pinout is identical, so substitution requires no PCB rework.
What control logic voltage does CD4066BF3A require to turn channels on, and is it 3.3 V logic compatible?
The CD4066BF3A control inputs switch at approximately 50% of the supply voltage (VDD/2). With a 5 V supply, a logic-high of 2.5 V or greater turns the channel on, meaning 3.3 V microcontroller GPIO outputs are marginal. To ensure reliable turn-on from a 3.3 V MCU, the recommended approach is to power the switch from a 3.3 V supply rail, making VDD/2 = 1.65 V and 3.3 V GPIO fully compliant.
Why is the ceramic CDIP package of CD4066BF3A preferred for aerospace and military applications over plastic SOIC variants?
The 14-pin ceramic DIP (CDIP) package of the CD4066BF3A withstands operating temperatures from -55 °C to +125 °C with hermetic sealing, making it resistant to moisture ingress at humidity levels that would degrade plastic packages. The ceramic body also tolerates ionizing radiation levels relevant to avionic and space-grade designs, and MIL-SPEC screening options ensure 100% parametric testing at production temperature extremes.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $14.0829 | $14.08 |
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