Analog Devices Inc./Maxim Integrated MAX4051CSE
- Part No.:
- MAX4051CSE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4051CSE.pdf
- Description:
- IC MUX 8:1 100OHM 16SOIC
- Quantity:
- Payment:

- Shipping:

Inventory:4,751
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Product details
Overview
MAX4051CSE from Maxim Integrated is an 8-channel CMOS analog multiplexer configured as a single-pole, eight-throw (SP8T) switch with rail-to-rail signal handling, 100Ω typical on-resistance at ±5V, 0.1nA max off-leakage at +25°C, and TTL/CMOS-compatible logic inputs-used in low-voltage data-acquisition systems for sensor channel selection.
For engineers reviewing the MAX4051CSE datasheet, MAX4051CSE pinout, MAX4051CSE application, or MAX4051CSE equivalent, key selection criteria include guaranteed on-resistance match (6Ω), dual-supply operation (±2.7V to ±8V), single-supply compatibility (+2.7V to +16V), low crosstalk (< -90dB), and high off-isolation (< -90dB) in 50Ω systems.
Technical Context
The MAX4051CSE implements a CMOS transmission-gate architecture with independent V+ and V− analog supply rails, enabling true rail-to-rail analog signal switching across ±8V differential range. Its internal logic-level translators isolate digital control signals from analog paths while maintaining TTL/CMOS thresholds over supply variations.
It features break-before-make switching with 30ns typical transition time, charge injection of ≤10pC, and on-capacitance of 8pF-optimized for precision, low-distortion (<0.04% THD at 600Ω) analog routing in battery-powered instrumentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | Rail-to-rail: V− to V+, supporting full-swing signals without clipping |
| On-Resistance (RON) | 100Ω max at ±5V supplies-ensures minimal voltage drop and gain error in signal paths |
| On-Resistance Match | 6Ω max between channels (MAX4051A variant)-critical for matched gain/attenuation in multi-channel systems |
| Off-Leakage Current | 0.1nA max at +25°C-preserves accuracy in high-impedance sensor front-ends and sample-hold circuits |
| Supply Range | Dual: ±2.7V to ±8V; Single: +2.7V to +16V-enables flexible power architecture in portable and industrial designs |
| Logic Compatibility | 0.8V to 2.4V input thresholds-guarantees reliable operation with 5V TTL and CMOS logic without level shifters |
| Off-Isolation | < -90dB at 100kHz (50Ω)-prevents signal coupling between inactive channels in dense routing |
Pinout & Package
MAX4051CSE is supplied in a 16-pin narrow SO (Small Outline) package with 1.27mm pitch, JEDEC MS-012AC compliant, 10.2mm × 5.3mm body size, and gull-wing leads suitable for automated SMT assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 5, 12, 13, 14, 15 | NO0–NO7 (Normally Open) | Eight analog switch outputs; bidirectional-can serve as inputs or outputs depending on COM connection |
| 3 | COM (Common) | Analog common node; connects to selected NOx channel when enabled; no ground reference required |
| 9, 10, 11 | ADDA, ADDB, ADDC | 3-bit binary address inputs selecting one of eight NO channels (ADDC not used on MAX4051) |
| 6 | INH (Inhibit) | Active-high enable/disable control; drives all switches open when logic high |
| 7 | V− | Negative analog supply; tied to GND for single-supply operation |
| 8 | GND | Digital ground reference only; no analog return path-signals float between V+ and V− |
| 16 | V+ | Positive analog/digital supply; powers internal logic and switch drivers |
Key Features
| Feature | Design Value |
|---|---|
| PIN-Compatible with 74HC4051 | Drop-in replacement for legacy 74HC4051 designs without PCB changes-same pinout and logic interface |
| Guaranteed On-Resistance Flatness | 10Ω max variation over full analog signal range-minimizes distortion in audio and precision measurement |
| Low Crosstalk & High Off-Isolation | < -90dB crosstalk and off-isolation in 50Ω systems-enables simultaneous multi-channel monitoring without interference |
| Single-Supply Operation Down to +2.7V | Functional at 2.7V-supports direct integration into 3V microcontroller-based data loggers and IoT edge nodes |
| Charge Injection ≤10pC | Minimizes voltage glitch on high-impedance nodes during switching-critical for sample-and-hold and ADC front-end stability |
Applications
| Battery-Operated Data Loggers | Audio Signal Routing |
|---|---|
Use Scenario: Multiplexing thermistor, RTD, and strain gauge inputs into a single 16-bit SAR ADC in a handheld environmental monitor. IC Role / Device Role / Timing Role: 8-channel analog multiplexer providing low-leakage, rail-to-rail signal selection under 3.3V single supply. Use Value: 0.1nA off-leakage preserves µV-level sensor resolution; 100Ω RON ensures <0.1% gain error across temperature. | Use Scenario: Switching line-level stereo signals between multiple sources (DAC, Bluetooth codec, aux input) in a portable speaker system. IC Role / Device Role / Timing Role: Bidirectional SP8T analog switch enabling source selection with <0.04% THD at 1kHz. Use Value: Low distortion and <-90dB crosstalk prevent audible channel bleed; rail-to-rail swing supports ±2Vpk audio peaks. |
| Low-Voltage Industrial Sensors | Communications Circuit Protection |
Use Scenario: Selecting among four isolated current-loop transmitters (4–20mA) feeding a shared analog input module in a PLC I/O card. IC Role / Device Role / Timing Role: High-voltage-tolerant analog switch operating from ±5V supplies, interfacing with external protection circuitry. Use Value: ±8V max supply rating allows integration with ±5V isolated power rails; 125Ω RON at +5V enables accurate current sensing. | Use Scenario: Isolating sensitive RF receiver inputs from antenna-switching transients in a dual-band cellular modem. IC Role / Device Role / Timing Role: Fast-switching analog gate (tON/tOFF <200ns) placed before LNA input to block ESD and hot-swap events. Use Value: Break-before-make timing prevents short-circuits; 0.1nA leakage avoids DC bias shift in high-Z RF matching networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG408BRUZ | 8-channel CMOS mux; 44Ω typical RON at ±15V but higher 10nA off-leakage at +25°C | Higher supply voltage capability (+15V); less suitable for sub-3V battery systems | Prefer for high-voltage industrial systems where leakage tolerance >1nA is acceptable |
| TMUX1308PWR | 8-channel mux; 4.5Ω typical RON at 3.3V but only single-supply (+1.08V to +3.6V), no bipolar support | No V− pin-requires unipolar design; lacks ±5V compatibility | Prefer for ultra-low-voltage, 3.3V-only embedded microcontroller interfaces |
Compared with ADG408BRUZ and TMUX1308PWR, MAX4051CSE uniquely balances low leakage (0.1nA), bipolar supply flexibility (±2.7V to ±8V), and 5V logic compatibility-making it optimal for mixed-signal test equipment and portable instrumentation requiring both precision and supply versatility.
Availability
MAX4051CSE 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 industrial temperature ranges (0°C to +70°C).
Supply support for MAX4051CSE 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 MAX4051 series belongs to Maxim's precision analog switch product line, designed specifically for low-leakage, rail-to-rail signal routing in portable instrumentation, medical devices, and automated test equipment where signal integrity and supply flexibility are critical.
FAQ
What is the maximum supply voltage rating for MAX4051CSE?
The MAX4051CSE supports dual supplies from ±2.7V to ±8V (V+ to V− differential ≤17V) or single supply from +2.7V to +16V. Absolute maximum ratings specify V+ up to +17V and V− down to −17V relative to GND, but continuous operation must stay within the specified ranges to ensure reliability and parameter guarantees. Exceeding these may cause permanent damage.
Does MAX4051CSE support rail-to-rail analog signal switching?
Yes, MAX4051CSE supports true rail-to-rail analog signal switching-the analog signal range extends from V− to V+ with no headroom loss. This is confirmed by the "Analog Signal Range" specification (VCOM, VNO = V− to V+) and verified in Typical Operating Characteristics plots showing RON flatness across full voltage swing. Signals pass bidirectionally with equal performance.
What is the guaranteed on-resistance match between channels for MAX4051CSE?
MAX4051CSE is part of the non-A (standard) variant family. Its guaranteed on-resistance match (∆RON) is 12Ω maximum across all eight channels at TA = +25°C, V+ = 5.5V, V− = −5.5V, and INO = 1mA. This value is explicitly specified in the Electrical Characteristics table for MAX4051/MAX4052/MAX4053 (non-A suffix) devices, distinguishing it from the tighter 6Ω match of the MAX4051A series.
Can MAX4051CSE operate from a +3.3V single supply?
Yes, MAX4051CSE is fully functional with a +3.3V single supply (V− = GND). The datasheet confirms operation down to +2.7V, and electrical characteristics at +3.0V to +3.6V show RON ≤700Ω, off-leakage ≤50nA, and tON/tOFF within spec. Logic thresholds remain compatible, and rail-to-rail analog range becomes 0V to +3.3V-ideal for modern low-power microcontroller interfaces.
Is MAX4051CSE pin-compatible with the 74HC4051?
Yes, MAX4051CSE is pin-compatible with the industry-standard 74HC4051. Both use identical 16-pin DIP/SO/QSOP footprints and share identical pin functions: COM (pin 3), NO0–NO7 (pins 1,2,4,5,12,13,14,15), ADDA/ADDB/ADDC (pins 9,10,11), INH (pin 6), V+ (pin 16), V− (pin 7), and GND (pin 8). No PCB redesign is needed for drop-in replacement.
MAX4051CSE 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):
- 12Ohm (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):
- 1nA
- Crosstalk:
- -90dB @ 100kHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MAX4051CSE FAQ
1.How can I place an order for MAX4051CSE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4051CSE 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 MAX4051CSE reliable?
The price and inventory of MAX4051CSE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4051CSE is usually 5 days.
3.What payment methods are accepted for MAX4051CSE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4051CSE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4051CSE?
MAX4051CSE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4051CSE 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 MAX4051CSE?
For technical support, including MAX4051CSE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4051CSE requirements.
6.How does Aetrix verify that MAX4051CSE is sourced from the original manufacturer or authorized distributors?
All MAX4051CSE 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 MAX4051CSE meets industry standards.
7.What is the process for return or replacement of MAX4051CSE?
All MAX4051CSE units undergo pre-shipment inspection (PSI). If there is an issue with MAX4051CSE, 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 MAX4051CSE part is unused and in its original packaging.
Return procedure for MAX4051CSE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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