Analog Devices Inc./Maxim Integrated MAX4066ACSD
- Part No.:
- MAX4066ACSD
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4066ACSD.pdf
- Description:
- IC SWITCH SPST-NOX4 45OHM 14SOIC
- Quantity:
- Payment:

- Shipping:

Inventory:3,285
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Product details
Overview
MAX4066ACSD from Maxim Integrated is a quad, single-pole single-throw (SPST), CMOS analog switch optimized for low-voltage operation (2.0V to 16V), featuring 45Ω on-resistance at 12V, 2Ω channel-to-channel matching (MAX4066A grade), and 100pA COM off-leakage at +25°C. It serves as a bilateral signal routing device in battery-powered instrumentation and low-distortion audio paths.
For engineers reviewing the MAX4066ACSD datasheet, MAX4066ACSD pinout, MAX4066ACSD application, or MAX4066ACSD equivalent, key selection criteria include guaranteed on-resistance flatness (≤6Ω), TTL/CMOS-compatible control inputs, -86dB crosstalk, 100MHz bandwidth, and SO-14 package compatibility with legacy 74HC4066 layouts.
Technical Context
The MAX4066ACSD implements four independent SPST switches using complementary CMOS transistor pairs per channel, enabling bidirectional analog signal flow with rail-to-rail voltage handling (GND to V+). Its architecture guarantees matched on-resistance across all channels and supports single-supply operation without negative rails.
Control logic accepts standard TTL/CMOS voltage thresholds (VINH ≥ 2.4V at V+ = 5V; VINL ≤ 0.8V), and internal ESD protection exceeds 2000V per Method 3015.7. Signal integrity is maintained via low charge injection (≤10pC), low distortion (0.03% THD), and high off-isolation (-58dB).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 45Ω max at V+ = 12V - ensures minimal signal attenuation and voltage drop in precision signal paths |
| Channel Matching (∆RON) | 2Ω max (MAX4066A) - enables accurate gain-matching in multi-channel data acquisition |
| Off-Leakage Current | 100pA max at +25°C - preserves accuracy in high-impedance sample-and-hold and sensor interfaces |
| Bandwidth | >100MHz - supports video, RF sampling, and fast digital signal routing without roll-off |
| Crosstalk | -86dB - prevents coupling between adjacent switched channels in dense PCB layouts |
| Supply Range | +2.0V to +16V - allows direct integration into 3.3V, 5V, and 12V systems without level-shifting |
| THD | 0.03% - meets fidelity requirements for line-level audio switching and instrumentation amplifiers |
Pinout & Package
MAX4066ACSD is housed in a 14-pin narrow SO (Small Outline) package, 3.9mm wide, with standard JEDEC MS-012AC footprint and 1.27mm pitch. Pin 1 is marked by a beveled corner or dot; pin 14 is V+, pin 7 is GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 9, 13 | NO1–NO4 | Normally open analog terminals - connect to signal sources when switch is enabled |
| 2, 5, 10, 12 | COM1–COM4 | Common analog terminals - bidirectional I/O nodes shared with NO pins |
| 6, 7, 12, 14 | IN1–IN4 | TTL/CMOS logic inputs - high = ON state; low = OFF state; no pull-up/down required |
| 14 | V+ | Positive supply - powers analog and logic sections; must be applied before control signals |
| 7 | GND | Analog/digital ground reference - common return for V+, COM, and NO paths |
Key Features
| Feature | Design Value |
|---|---|
| Pin compatibility with 74HC4066 | Direct SO-14 drop-in replacement for legacy designs - no PCB rework needed |
| Guaranteed on-resistance flatness | ≤6Ω over full signal range (0V to V+) - maintains consistent gain/attenuation across input swing |
| Low power consumption | 0.5µW typical - extends battery life in portable medical and handheld test equipment |
| V+ to GND signal handling | Rail-to-rail analog voltage support - eliminates need for external clamping diodes in most applications |
| ESD robustness | >2000V HBM - reduces field failure risk during assembly and end-use in industrial environments |
Applications
| Battery-Powered Data Loggers | Professional Audio Signal Routing |
|---|---|
Use Scenario: Multiplexing sensor outputs (thermocouples, RTDs) into a single ADC channel under 3.3V battery power. IC Role / Device Role / Timing Role: Quad SPST analog switch providing low-leakage, low-RON signal path selection with TTL-compatible enable control. Use Value: 100pA leakage and 170Ω RON at 3V preserve microvolt-level measurement accuracy without active guarding. |
Use Scenario: Switching line-level stereo audio between multiple sources (DAC, CD player, phono preamp) in a studio mixer. IC Role / Device Role / Timing Role: Bidirectional analog switch managing unbalanced analog signal paths with minimal crosstalk and distortion. Use Value: -86dB crosstalk and 0.03% THD prevent audible channel bleed and harmonic artifacts in critical listening environments. |
| Low-Voltage Industrial PLC I/O Modules | Medical Patient Monitoring Front-Ends |
Use Scenario: Isolating and routing 0–10V analog sensor inputs to isolated ADCs in DIN-rail mounted controllers. IC Role / Device Role / Timing Role: Signal path gate enabling flexible configuration of analog input channels via microcontroller GPIO. Use Value: 2Ω channel matching and 45Ω RON at 12V ensure consistent scaling across 4-channel differential measurements. |
Use Scenario: Selecting ECG electrode leads (RA/LA/LL) into a single instrumentation amplifier in portable patient monitors. IC Role / Device Role / Timing Role: Low-leakage, low-noise analog multiplexer protecting high-impedance biopotential signals from switching transients. Use Value: 100pA off-leakage and 10pC charge injection prevent baseline drift and motion artifact amplification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4066CSD | Higher 4Ω channel match (vs. 2Ω), 1nA COM off-leakage (vs. 100pA), same SO-14 package | Suitable where ultra-low leakage is non-critical but cost sensitivity is higher | Select MAX4066CSD only if leakage & matching specs exceed system requirements |
| ADG1412BRUZ | Lower 1.3Ω RON, ±15V dual-supply capable, TSSOP-16 package, higher 150pA leakage | Better for high-precision, wide-swing industrial signal chains requiring lower on-resistance | Choose ADG1412BRUZ when rail-to-rail bipolar signal handling and sub-2Ω RON are mandatory |
Compared with MAX4066CSD, the MAX4066ACSD delivers tighter channel matching and lower leakage for high-fidelity multiplexing; versus ADG1412BRUZ, it offers simpler single-supply operation and smaller SO-14 footprint at the expense of bipolar capability and ultimate RON performance.
Availability
MAX4066ACSD is available at Aetrix Electronics and suitable for battery-operated equipment, audio signal routing, and low-voltage data-acquisition systems requiring stable component supply across extended production lifecycles.
Supply support for MAX4066ACSD includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) designs high-performance analog and mixed-signal ICs for industrial, communications, and consumer applications, with emphasis on power efficiency and signal integrity.
The MAX4066A family targets low-voltage, low-leakage analog switching in portable and precision instrumentation - delivering rail-to-rail operation, guaranteed matching, and robust ESD tolerance in compact packages.
FAQ
What is the maximum supply voltage rating for MAX4066ACSD?
The MAX4066ACSD has an absolute maximum V+ rating of +17V, with guaranteed functional operation from +2.0V to +16V. Operation beyond +16V risks permanent damage, and proper power sequencing (V+ before logic inputs) is required to avoid latch-up or ESD-induced failure. The MAX4066ACSD datasheet specifies full electrical performance at 3V, 5V, and 12V supplies.
Does MAX4066ACSD support bidirectional analog signal flow?
Yes, the MAX4066ACSD supports fully bidirectional analog signal routing between COM and NO terminals - each switch functions identically regardless of signal direction. This enables use in both multiplexer (COM common, NOs selected) and demultiplexer (NO common, COMs selected) configurations without performance degradation.
What is the guaranteed on-resistance flatness specification for MAX4066ACSD?
The MAX4066ACSD guarantees on-resistance flatness of ≤6Ω over its full analog signal range (0V to V+), measured as the difference between maximum and minimum RON values across the specified voltage swing. This ensures consistent gain and minimal harmonic distortion in audio and precision measurement applications.
Can MAX4066ACSD be used with 3.3V logic control signals?
Yes, MAX4066ACSD accepts TTL/CMOS-compatible logic inputs: VINH ≥ 2.4V and VINL ≤ 0.8V at V+ = 5V, and its inputs are fully compatible with 3.3V logic families (e.g., 74LVC, ARM GPIO). No level-shifting circuitry is required, simplifying interface design in mixed-voltage systems.
Is MAX4066ACSD pin-compatible with the industry-standard 74HC4066?
Yes, the MAX4066ACSD is pin-compatible with the 74HC4066 in the 14-pin SO package - sharing identical pin assignments for IN1–IN4, COM1–COM4, NO1–NO4, V+, and GND. This allows direct replacement in existing designs while delivering superior on-resistance, leakage, and bandwidth performance.
MAX4066ACSD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 45Ohm
- Channel-to-Channel Matching (ΔRon):
- 500mOhm
- Voltage - Supply, Single (V+):
- 2V ~ 16V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 100ns, 75ns
- -3db Bandwidth:
- 100MHz
- Charge Injection:
- 1pC
- Channel Capacitance (CS(off), CD(off)):
- 9pF, 9pF
- Current - Leakage (IS(off)) (Max):
- 100pA
- Crosstalk:
- -86dB @ 1MHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
MAX4066ACSD FAQ
1.How can I place an order for MAX4066ACSD through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4066ACSD on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX4066ACSD reliable?
The price and inventory of MAX4066ACSD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4066ACSD is usually 5 days.
3.What payment methods are accepted for MAX4066ACSD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4066ACSD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4066ACSD?
MAX4066ACSD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4066ACSD order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX4066ACSD?
For technical support, including MAX4066ACSD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4066ACSD requirements.
6.How does Aetrix verify that MAX4066ACSD is sourced from the original manufacturer or authorized distributors?
All MAX4066ACSD products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX4066ACSD meets industry standards.
7.What is the process for return or replacement of MAX4066ACSD?
All MAX4066ACSD units undergo pre-shipment inspection (PSI). If there is an issue with MAX4066ACSD, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX4066ACSD part is unused and in its original packaging.
Return procedure for MAX4066ACSD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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