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Analog Devices Inc./Maxim Integrated MAX4051ACSE
- Part No.:
- MAX4051ACSE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4051ACSE.pdf
- Description:
- IC MUX 8:1 100OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,698
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Product details
Overview
MAX4051ACSE from Maxim Integrated is an 8-channel CMOS analog multiplexer with rail-to-rail signal handling, ±2.7V to ±8V dual-supply or +2.7V to +16V single-supply operation, 100Ω max on-resistance at ±5V, 0.1nA max off-leakage at +25°C, and TTL/CMOS logic compatibility - used in battery-powered data-acquisition systems for channel selection.
For engineers reviewing the MAX4051ACSE datasheet, MAX4051ACSE pinout, MAX4051ACSE application, or MAX4051ACSE equivalent, key selection criteria include guaranteed on-resistance match (≤6Ω), low charge injection (≤10pC), high off-isolation (<–90dB), and narrow SO package compatibility with legacy 74HC4051 layouts.
Technical Context
The MAX4051ACSE implements a single 8:1 analog multiplexer using transmission-gate CMOS architecture with independent V+ and V- supply rails to define analog signal swing limits. Its digital control uses ADDA/ADDB/ADDC address inputs and INH enable, with logic thresholds fixed at 0.8V (low) and 2.4V (high) for robust TTL/CMOS interfacing across supply voltages.
Internal ESD protection diodes clamp NO/COM pins to V+ and V-, defining absolute maximum analog input range as (V− − 2V) to (V+ + 2V). Leakage current originates from reverse-biased diode mismatch, resulting in temperature-dependent off-leakage (0.1nA @ +25°C, 5nA @ +85°C) and negligible on-leakage (≤0.1nA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance (RON) | 100Ω max at ±5V - ensures minimal signal attenuation and gain error in precision sensor routing. |
| On-resistance match (ΔRON) | 6Ω max - enables accurate ratiometric measurements across channels without calibration. |
| Off-leakage current | 0.1nA max at +25°C - preserves high-impedance node integrity in low-power sampling circuits. |
| Off-isolation | <–90dB at 100kHz - suppresses crosstalk between active and inactive channels in multi-signal systems. |
| Supply range | ±2.7V to ±8V dual or +2.7V to +16V single - supports direct integration into mixed-voltage industrial and portable designs. |
| Logic compatibility | 0.8V to 2.4V thresholds - guarantees reliable switching with 3.3V/5V microcontrollers without level shifters. |
| Charge injection | 10pC max - minimizes voltage glitch on sampled-hold capacitors in ADC front-ends. |
Pinout & Package
MAX4051ACSE is housed in a 16-pin narrow SO (Small Outline) package, 3.9mm width, with standard 0.050" pitch and gull-wing leads - compatible with automated SMT assembly and IPC-7351B footprint MSOIC-N16.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 5, 12, 13, 14, 15 | NO0–NO7 | Eight normally open analog switch terminals - bidirectional, interchangeable with COM; support rail-to-rail signal routing. |
| 3 | COM | Common analog terminal - connects to selected NOx channel; no ground reference; voltage bounded by V+ and V−. |
| 6 | INH | Digital inhibit input - logic high disables all switches; tied low for normal operation. |
| 7 | V− | Negative analog supply - connected to GND for single-supply use; sets lower analog signal limit. |
| 8 | GND | Digital ground reference - isolated from analog path; required for logic interface stability. |
| 9, 10, 11 | ADDA, ADDB, ADDC | 3-bit binary address inputs - select one of eight NOx channels (000–111); TTL/CMOS compatible. |
| 16 | V+ | Positive analog/digital supply - defines upper analog signal limit and powers internal logic translators. |
Key Features
| Feature | Design Value |
|---|---|
| PIN-compatible with 74HC4051 | Direct drop-in replacement in existing PCB layouts - eliminates redesign risk and qualification effort. |
| Guaranteed RON flatness | 10Ω max over full analog range - maintains consistent gain and linearity across signal amplitude variations. |
| Low distortion | <0.04% THD at 600Ω load - preserves signal fidelity in audio and precision instrumentation paths. |
| Break-before-make timing | 30ns min (single +5V) - prevents momentary shorting during channel transitions in critical signal routing. |
| Single-supply operation down to +2.7V | Enables use in Li-ion powered devices without auxiliary voltage rails or regulators. |
Applications
| Battery-Operated Data Acquisition | Audio Signal Routing |
|---|---|
Use Scenario: Multiplexing thermocouple, RTD, and strain gauge signals in handheld test equipment powered by two AA cells. IC Role / Device Role / Timing Role: 8:1 analog multiplexer selecting sensor inputs to a single SAR ADC, controlled by MCU GPIOs. Use Value: 0.1nA off-leakage prevents bias current errors in high-Z sensor bridges; 100Ω RON adds <0.1% gain error at 10kΩ source impedance. | Use Scenario: Switching line-level stereo audio between multiple sources (DAC, Bluetooth module, aux input) in smart speaker baseband processing. IC Role / Device Role / Timing Role: Bidirectional analog switch routing unbalanced 1VRMS signals with <–90dB off-isolation to prevent audible crosstalk. Use Value: <0.04% THD preserves audio clarity; rail-to-rail operation handles full ±2V peak signal swing without clipping. |
| Low-Voltage Communications Interface | Industrial Sensor Hub |
Use Scenario: Selecting between RS-232, RS-485, and CAN transceiver outputs in a field-configurable gateway node. IC Role / Device Role / Timing Role: Signal-path multiplexer enabling shared UART lines and isolation barriers across protocols. Use Value: ±2.7V to ±8V dual-supply operation matches transceiver voltage domains; 5nA off-leakage at +85°C ensures reliability in enclosure-mounted units. | Use Scenario: Consolidating analog outputs from 8 pressure, flow, and temperature sensors into a single 4–20mA transmitter loop. IC Role / Device Role / Timing Role: High-accuracy multiplexer feeding a precision voltage-to-current converter with auto-calibration. Use Value: 6Ω RON match eliminates inter-channel gain variation; 10pC charge injection prevents step errors in DAC-controlled calibration cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4051CSE | Higher on-resistance (125Ω vs. 100Ω), looser RON match (12Ω vs. 6Ω), higher off-leakage (1nA vs. 0.1nA at +25°C) | Suitable for non-critical general-purpose routing where leakage and matching are less constrained | Select MAX4051CSE only when cost sensitivity outweighs precision requirements and thermal drift is acceptable. |
| ADG1408BRUZ | Lower on-resistance (4.7Ω), wider supply range (±5V to ±22V), but higher charge injection (25pC) and no A-grade leakage characterization | Better for high-speed, high-voltage industrial PLC I/O modules requiring ultra-low RON | Choose ADG1408BRUZ when driving low-impedance loads or operating beyond ±8V; avoid in low-leakage precision sampling. |
Compared with MAX4051CSE and ADG1408BRUZ, the MAX4051ACSE delivers optimal balance of leakage performance, matching accuracy, and supply flexibility for battery-constrained, multi-sensor systems - making it preferred for portable instrumentation and calibrated sensor hubs where long-term stability matters.
Availability
MAX4051ACSE 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 across extended temperature ranges and long production lifecycles.
Supply support for MAX4051ACSE 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 precision analog, mixed-signal, and power-management ICs for demanding industrial, medical, and communications applications.
The MAX4051/A series targets low-voltage, high-fidelity analog signal routing - emphasizing leakage control, channel matching, and supply flexibility for portable and sensor-rich systems.
FAQ
What is the maximum allowable analog signal range for MAX4051ACSE when operated with ±5V supplies?
The MAX4051ACSE supports rail-to-rail analog signals, meaning the full range extends from V− to V+, or −5V to +5V. Internal ESD diodes clamp inputs to (V− − 2V) and (V+ + 2V), so absolute maximum analog input is −7V to +7V - but sustained operation outside −5V to +5V risks exceeding absolute maximum ratings and must be avoided. The MAX4051ACSE datasheet specifies guaranteed performance only within the supply rails.
Does MAX4051ACSE support single-supply operation below +3V?
The MAX4051ACSE is characterized down to +2.7V per the datasheet, and functional operation has been observed near +1.7V at room temperature. However, below +2.7V, on-resistance rises sharply (e.g., ~700Ω at +3V), switching times increase significantly (tON up to 700ns), and leakage specifications are no longer guaranteed. For reliable, specified performance, MAX4051ACSE should be operated at ≥+2.7V in single-supply mode.
How does the INH pin function in MAX4051ACSE, and what is its logic polarity?
The INH (Inhibit) pin on the MAX4051ACSE is an active-high digital control that disables all eight switch channels when driven to logic high (≥2.4V). When INH is low (≤0.8V), normal address decoding via ADDA/ADDB/ADDC proceeds. The pin draws ≤1µA and is TTL/CMOS compatible. Pulling INH high provides fail-safe channel isolation - a key feature for safety-critical or power-gated subsystems using the MAX4051ACSE.
Is MAX4051ACSE pin-compatible with the industry-standard 74HC4051 in the same narrow SO package?
Yes, the MAX4051ACSE is fully pin-compatible with the 74HC4051 in the 16-pin narrow SO package: pin assignments for V+, GND, INH, ADDA–ADDC, COM, and NO0–NO7 match exactly. This allows direct substitution without PCB modification. However, note that MAX4051ACSE offers superior specs - including lower leakage (0.1nA vs. typical 100nA), tighter RON match (6Ω vs. unspecified), and guaranteed dual-supply operation - making it a performance upgrade, not just a footprint match.
What is the thermal performance limit for continuous operation of MAX4051ACSE?
The MAX4051ACSE is rated for continuous operation from 0°C to +70°C ambient temperature, as indicated by the "C" grade suffix in the part number. Its narrow SO package has a thermal resistance θJA of 8.70°C/W, supporting up to 696mW continuous power dissipation at +70°C (derating linearly above that point). Exceeding +70°C ambient requires derating or heatsinking; operation beyond the specified range voids parametric guarantees and may accelerate parametric drift or failure.
MAX4051ACSE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MAX4051ACSE FAQ
1.How can I place an order for MAX4051ACSE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4051ACSE 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 MAX4051ACSE reliable?
The price and inventory of MAX4051ACSE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4051ACSE is usually 5 days.
3.What payment methods are accepted for MAX4051ACSE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4051ACSE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4051ACSE?
MAX4051ACSE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4051ACSE 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 MAX4051ACSE?
For technical support, including MAX4051ACSE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4051ACSE requirements.
6.How does Aetrix verify that MAX4051ACSE is sourced from the original manufacturer or authorized distributors?
All MAX4051ACSE 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 MAX4051ACSE meets industry standards.
7.What is the process for return or replacement of MAX4051ACSE?
All MAX4051ACSE units undergo pre-shipment inspection (PSI). If there is an issue with MAX4051ACSE, 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 MAX4051ACSE part is unused and in its original packaging.
Return procedure for MAX4051ACSE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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