Analog Devices Inc./Maxim Integrated MAX4051ACPE+
- Part No.:
- MAX4051ACPE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX4051ACPE+.pdf
- Description:
- IC MUX 8:1 100OHM 16DIP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
MAX4051ACPE+ from Maxim Integrated is an 8-channel CMOS analog multiplexer configured for rail-to-rail signal switching in low-voltage systems, featuring guaranteed 100Ω on-resistance (±5V), 6Ω channel-to-channel on-resistance match, 0.1nA off-leakage at +25°C, and TTL/CMOS-compatible logic thresholds - widely used in battery-powered data-acquisition front-ends.
For engineers reviewing the MAX4051ACPE+ datasheet, MAX4051ACPE+ pinout, MAX4051ACPE+ application, or MAX4051ACPE+ equivalent, this page delivers verified electrical specs, package-validated pin functions, real-world use scenarios, and two confirmed alternative parts with documented technical and application differences.
Technical Context
The MAX4051ACPE+ implements a single-pole, eight-throw (SP8T) analog switch architecture using complementary CMOS transistors, with independent digital address decoding (ADDA/ADDB/ADDC) and global inhibit (INH) control. Its internal logic-level translators isolate digital inputs from analog supplies while enabling operation across ±2.7V to ±8V dual or +2.7V to +16V single supply rails.
All NOx and COM pins are bidirectional and interchangeable; signal routing is defined solely by address bits and INH state. The device guarantees monotonic on-resistance flatness (<10Ω) over full analog signal range (V– to V+) and maintains sub-0.04% THD at 600Ω load - critical for precision sensor multiplexing and audio routing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Configuration | 8-channel analog multiplexer (SP8T), single COM, eight NO terminals |
| On-resistance (RON) | 100Ω max at ±5V supplies - ensures minimal signal attenuation and gain error in precision measurement paths |
| On-resistance match (∆RON) | 6Ω max between channels - enables accurate ratiometric measurements and channel calibration |
| Off-leakage current | 0.1nA max at +25°C - preserves high-impedance sensor node integrity and low-power standby performance |
| Supply range | ±2.7V to ±8V dual or +2.7V to +16V single - supports portable, industrial, and mixed-supply system integration |
| Logic compatibility | 0.8V to 2.4V input thresholds - interoperable with TTL and CMOS logic without level-shifting at +5V supply |
| Off-isolation | <−90dB at 100kHz (50Ω) - prevents crosstalk-induced errors in multi-channel simultaneous sampling |
Pinout & Package
MAX4051ACPE+ is supplied in a 16-pin plastic DIP (dual in-line package) with 0.3-inch body width and through-hole mounting. Pin 1 is located at the top-left corner adjacent to the notch or dot marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 5, 12, 13, 14, 15 | NO0–NO7 | Normally open analog switch terminals - bidirectional, interchangeable with COM; selected per ADDA/ADDB/ADDC |
| 3 | COM | Common analog terminal - connects to one NOx channel when enabled; no ground reference required |
| 6 | INH | Digital inhibit input - logic high disables all switches regardless of address state |
| 7 | V− | Negative analog supply - tied to GND for single-supply operation; sets lower analog voltage limit |
| 8 | GND | Digital ground reference - separate from analog signal path; no current return path for analog signals |
| 9, 10, 11 | ADDA, ADDB, ADDC | 3-bit binary address inputs - select one of eight NOx channels to connect to COM (INH = low) |
| 16 | V+ | Positive analog/digital supply - powers internal logic and switch drivers; sets upper analog voltage limit |
Key Features
| Feature | Design Value |
|---|---|
| PIN-compatible with 74HC4051 | Direct drop-in replacement for legacy HC-series designs without PCB or firmware changes |
| Rail-to-rail analog signal handling | Supports input/output signals spanning V− to V+ - eliminates external clamping or level-shifting in ±5V or +5V systems |
| Guaranteed on-resistance flatness | <10Ω variation over full signal range - minimizes distortion and amplitude error in AC-coupled audio/video paths |
| Low charge injection (2pC typ) | Reduces voltage glitch on high-impedance nodes during switching - critical for sample-and-hold and precision ADC front-ends |
| Break-before-make timing | 30ns min (single +5V) - prevents momentary shorting between channels during address transitions |
Applications
| Battery-Powered Data Acquisition | Audio Signal Routing |
|---|---|
Use Scenario: Multiplexing outputs from eight thermocouples or RTDs into a single sigma-delta ADC in handheld test equipment. IC Role / Device Role / Timing Role: Analog SP8T multiplexer providing channel selection under microcontroller GPIO control with <300ns turn-on time. Use Value: 0.1nA off-leakage preserves µV-level sensor offsets; 100Ω RON ensures <0.01% gain error at 10kΩ source impedance. |
Use Scenario: Routing line-level stereo audio between multiple sources (DAC, Bluetooth module, mic preamp) in compact AV receivers. IC Role / Device Role / Timing Role: Bidirectional analog switch matrix enabling software-selectable input path with <0.04% THD at 1kHz. Use Value: −90dB off-isolation prevents audible crosstalk; rail-to-rail operation supports ±2.5V peak audio swing without clipping. |
| Low-Voltage Industrial Sensing | Communications Circuit Switching |
Use Scenario: Selecting among four isolated current-loop transmitters (4–20mA) feeding a shared analog input on a PLC I/O module. IC Role / Device Role / Timing Role: High-impedance analog switch isolating transmitter outputs during non-selection; INH used for system-wide disable. Use Value: ±8V dual-supply support accommodates loop-powered transmitters; 6Ω RON match enables consistent current-sense accuracy across channels. |
Use Scenario: Configuring RF front-end signal paths (antenna diversity, filter bank selection) in narrowband IoT modems operating from +3.3V. IC Role / Device Role / Timing Role: Low-capacitance analog switch (8pF on-state) routing baseband I/Q signals with minimal phase distortion. Use Value: 50MHz bandwidth and −90dB crosstalk maintain EVM integrity; single +3.3V operation simplifies power design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG408BRZ | 8-channel CMOS mux; 100Ω RON (±5V), but 25nA max off-leakage at +25°C - 250× higher than MAX4051ACPE+ | Better suited for general-purpose switching where leakage is less critical; not recommended for high-Z sensor front-ends | Select MAX4051ACPE+ when sub-1nA leakage and guaranteed RON match are required; choose ADG408BRZ for cost-sensitive, moderate-precision uses. |
| TS5A3159DCKR | Single SPDT switch (not 8-channel); 0.9Ω RON at +3.3V, but only 2-channel configuration - requires three devices to match functionality | Optimized for ultra-low RON in portable audio; lacks address decoding, INH, or multi-channel integration | Use MAX4051ACPE+ for integrated 8:1 multiplexing with digital control; TS5A3159DCKR only viable if redesigning for discrete SPDT topology and accepting board area penalty. |
Compared with ADG408BRZ and TS5A3159DCKR, the MAX4051ACPE+ uniquely combines 8-channel integration, sub-nA leakage, and guaranteed RON matching - making it irreplaceable in precision, low-power, single-chip multiplexing applications where channel consistency and signal integrity are non-negotiable.
Availability
MAX4051ACPE+ is available at Aetrix Electronics and suitable for battery-operated equipment, audio and video signal routing, and low-voltage data-acquisition systems requiring stable component supply and long-term manufacturing continuity.
Supply support for MAX4051ACPE+ 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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and consumer applications.
The MAX4051A series belongs to Maxim's precision analog switch/multiplexer product line, designed specifically for low-leakage, low-distortion, and rail-to-rail signal routing in space- and power-constrained systems.
FAQ
What is the maximum supply voltage rating for MAX4051ACPE+?
The MAX4051ACPE+ has absolute maximum ratings of V+ = −0.3V to +17V and V− = +0.3V to −17V, with V+ to V− differential up to +17V. For reliable operation, use dual supplies within ±2.7V to ±8V or single supply from +2.7V to +16V. Exceeding these ranges risks permanent damage, as confirmed in the Absolute Maximum Ratings table.
Does MAX4051ACPE+ support rail-to-rail analog signal switching?
Yes, MAX4051ACPE+ supports true rail-to-rail analog signal switching - signals can swing from V− to V+ without clipping or distortion. This is explicitly guaranteed in the General Description and validated by the Analog Signal Range specification (VCOM/VNO = V− to V+), enabling direct interfacing with op-amps and ADCs operating at supply rails.
What is the function of the INH pin on MAX4051ACPE+?
The INH (Inhibit) pin on MAX4051ACPE+ is a digital input that globally disables all analog switches when driven high, overriding address inputs (ADDA/ADDB/ADDC). When INH = high, COM is disconnected from all NOx terminals regardless of address state - a critical feature for system-level power gating and fault-safe shutdown in safety-critical designs.
Is MAX4051ACPE+ pin-compatible with the standard 74HC4051?
Yes, MAX4051ACPE+ is explicitly pin-compatible with the industry-standard 74HC4051, as stated in the Features section. Both share identical 16-pin DIP pinout, address/control logic mapping (ADDA/ADDB/ADDC/INH), and COM/NO terminal assignments - enabling direct replacement without layout modification or firmware changes.
What is the typical on-resistance flatness specification for MAX4051ACPE+?
The typical on-resistance flatness for MAX4051ACPE+ is ≤10Ω, defined as the difference between maximum and minimum RON measured across the full analog signal range (e.g., VNO = ±3V). This parameter is guaranteed for the 'A' grade (MAX4051A) and directly impacts THD and signal fidelity - especially critical in audio and precision measurement applications.
MAX4051ACPE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- 8:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 100Ohm
- Channel-to-Channel Matching (ΔRon):
- 6Ohm (Max)
- Voltage - Supply, Single (V+):
- 2V ~ 16V
- Voltage - Supply, Dual (V±):
- ±2.7V ~ 8V
- Switch Time (Ton, Toff) (Max):
- 175ns, 150ns
- -3db Bandwidth:
- -
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 2pF, 2pF
- Current - Leakage (IS(off)) (Max):
- 100pA
- Crosstalk:
- -90dB @ 100kHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-PDIP
MAX4051ACPE+ FAQ
1.How can I place an order for MAX4051ACPE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4051ACPE+ 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 MAX4051ACPE+ reliable?
The price and inventory of MAX4051ACPE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4051ACPE+ is usually 5 days.
3.What payment methods are accepted for MAX4051ACPE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4051ACPE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4051ACPE+?
MAX4051ACPE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4051ACPE+ 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 MAX4051ACPE+?
For technical support, including MAX4051ACPE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4051ACPE+ requirements.
6.How does Aetrix verify that MAX4051ACPE+ is sourced from the original manufacturer or authorized distributors?
All MAX4051ACPE+ 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 MAX4051ACPE+ meets industry standards.
7.What is the process for return or replacement of MAX4051ACPE+?
All MAX4051ACPE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4051ACPE+, 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 MAX4051ACPE+ part is unused and in its original packaging.
Return procedure for MAX4051ACPE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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