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Analog Devices Inc./Maxim Integrated MAX4551CSE
- Part No.:
- MAX4551CSE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4551CSE.pdf
- Description:
- IC SW SPST-NCX4 120OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,621
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Product details
Overview
MAX4551CSE from Maxim Integrated is a quad, low-voltage, normally closed (NC) SPST analog switch IC designed for rail-to-rail signal routing in precision analog front-ends. It features ±15kV IEC 1000-4-2 ESD protection on NC/NO pins, 100Ω max on-resistance (flatness ≤8Ω), and 1nA COM off-leakage at +25°C. It operates from single +2.7V to +12V or dual ±2V to ±6V supplies and is used in battery-powered test equipment requiring robust signal integrity and latchup-free switching.
For engineers reviewing the MAX4551CSE datasheet, MAX4551CSE pinout, MAX4551CSE application, or MAX4551CSE equivalent, key selection criteria include its NC configuration, ESD-hardened NC/NO terminals, matched on-resistance across four channels, TTL/CMOS-compatible logic thresholds, and compatibility with ±5V or +5V supply systems.
Technical Context
The MAX4551CSE implements four independent CMOS SPST switches with internal N- and P-channel MOSFETs paralleled per channel and driven out-of-phase by logic-level translators. Its analog signal path is fully rail-to-rail, supporting input voltages from V− to V+, with ESD protection achieved via on-chip bidirectional SCRs tied to GND on NC/NO pins - not diode clamps to supplies.
Logic inputs accept TTL/CMOS levels (0.8V/2.4V thresholds at +5V supply), and internal substrate connection to V+ enables stable operation across temperature. The device exhibits 4Ω max on-resistance matching and 8Ω max flatness over the full analog range, with leakage currents specified and tested at +25°C, +85°C, and −40°C per MIL-STD-883 methods.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | Quad SPST, normally closed (NC) - all four switches conduct when logic input = 0 |
| On-Resistance (RON) | 100Ω max at ±5V supplies - ensures minimal signal attenuation in low-impedance paths |
| On-Resistance Matching | 4Ω max between channels - critical for multi-channel instrumentation where gain/phase tracking matters |
| ESD Protection | ±15kV contact discharge per IEC 1000-4-2 on NC/NO pins - eliminates need for external TVS diodes |
| Supply Range | +2.7V to +12V single supply or ±2V to ±6V dual supply - supports portable and industrial voltage rails |
| Off-Leakage Current | 1nA at +25°C, 10nA at +85°C - preserves accuracy in high-impedance sensor interfaces |
| Logic Thresholds | VIN_H = 2.4V, VIN_L = 0.8V at +5V supply - guarantees interoperability with standard TTL/CMOS drivers |
Pinout & Package
MAX4551CSE is housed in a 16-pin narrow SO (Small Outline) package with 1.27mm pitch, JEDEC MS-012AC compliant, and rated for 0°C to +70°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 9, 16 | IN1–IN4 | Digital control inputs - active-low logic drives NC closure; TTL/CMOS compatible |
| 2, 7, 10, 15 | COM1–COM4 | Analog common terminals - bidirectional signal path; connects to load or source |
| 3, 6, 11, 14 | NC1–NC4 | Normally closed analog terminals - conduct to COM when IN = 0; ESD-protected |
| 4 | V− | Negative supply pin - connect to GND for single-supply operation; sets lower analog rail |
| 5 | GND | Digital ground reference - separate from analog signal return; ties SCR cathodes |
| 12 | N.C. | No internal connection - must be left floating or grounded per layout best practice |
| 13 | V+ | Positive supply and substrate tie - powers logic and analog switches; internally connected to p-substrate |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports signals from V− to V+ without clipping - essential for ±5V op-amp interfaces and audio line-level routing |
| ±15kV IEC 1000-4-2 ESD protection | On-chip SCRs on NC/NO pins bypass ESD surges to GND in <5ns - avoids supply rail disturbance and external protection components |
| Low on-resistance flatness (≤8Ω) | Minimizes harmonic distortion and amplitude error across full signal swing - verified at ±4.5V with ±5V supplies |
| 4-channel on-resistance matching (≤4Ω) | Enables precise multi-channel gain/phase alignment in data acquisition and automatic test equipment |
| TTL/CMOS-compatible logic thresholds | Validated at +5V supply (0.8V/2.4V) and scalable up to +12V - simplifies interface with microcontrollers and FPGAs |
Applications
| Battery-Operated Test Equipment | Avionics Signal Routing |
|---|---|
|
Use Scenario: Portable multimeters and handheld oscilloscopes require low-leakage, ESD-hardened switching for autoranging and multiplexing. IC Role / Device Role / Timing Role: MAX4551CSE acts as a fault-tolerant analog multiplexer front-end, selecting voltage/current ranges under MCU control. Use Value: 1nA off-leakage preserves measurement accuracy; ±15kV ESD withstand prevents field failures during probe handling. |
Use Scenario: Flight control computers route sensor signals (e.g., gyros, accelerometers) through redundant analog paths. IC Role / Device Role / Timing Role: MAX4551CSE provides fail-safe NC switching for primary/backup signal selection with no power dependency. Use Value: NC default state ensures continuity during power loss or reset; rail-to-rail support accommodates ±10V sensor outputs. |
| Audio Signal Routing | Data Acquisition Systems |
|
Use Scenario: Professional audio mixers switch line-level analog signals between inputs, effects loops, and outputs. IC Role / Device Role / Timing Role: MAX4551CSE serves as a low-distortion, low-crosstalk analog crosspoint switch in analog signal matrixes. Use Value: 8Ω on-resistance flatness minimizes THD (<0.001% at 1kHz); 3.5pF NO off-capacitance preserves high-frequency response. |
Use Scenario: Industrial PLC analog input modules condition and multiplex multiple sensor channels before ADC sampling. IC Role / Device Role / Timing Role: MAX4551CSE isolates individual RTD or thermocouple inputs from shared signal conditioning circuitry. Use Value: 4Ω channel matching ensures consistent gain calibration across 16-channel scans; 120ns turn-on time supports 10ksps sampling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1411BRZ | Quad SPST, NO configuration; 1.8Ω typical RON; requires ≥±4.5V dual or ≥9V single supply | Lower on-resistance but lacks NC default state; no integrated ±15kV ESD on switch terminals | Select ADG1411BRZ only when lowest RON is critical and external ESD protection is acceptable |
| TS5A23157DGSR | Quad SPST, NO/NC configurable per channel; 0.9Ω typical RON; +1.65V to +5.5V single supply only | Wider logic voltage range but no dual-supply support; ESD rated to ±4kV HBM only | Choose TS5A23157DGSR for ultra-low-voltage battery systems where ±15kV ESD is not required |
Compared with ADG1411BRZ and TS5A23157DGSR, the MAX4551CSE uniquely combines NC default behavior, ±15kV IEC-rated ESD hardening on switch terminals, and dual-supply flexibility - making it irreplaceable in safety-critical, field-deployed analog routing where continuity and surge immunity are mandatory.
Availability
MAX4551CSE is available at Aetrix Electronics and suitable for battery-operated test equipment, avionics signal routing, audio signal routing, and industrial data acquisition systems requiring stable component supply and long-term manufacturability.
Supply support for MAX4551CSE 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, automotive, and communications markets.
The MAX4551/MAX4552/MAX4553 family was designed specifically for ESD-critical analog signal routing in portable and harsh-environment instrumentation - prioritizing latchup immunity, rail-to-rail fidelity, and supply flexibility over raw speed or ultra-low RON.
FAQ
What is the default switch state of MAX4551CSE?
The MAX4551CSE has a normally closed (NC) configuration: each of its four SPST switches conducts between COM and NC terminals when the corresponding IN pin is logic low (0V). When IN is logic high (≥2.4V), the switch opens. This fail-safe behavior ensures signal continuity during power loss or controller reset - a key requirement in avionics and medical instrumentation where interruption is unacceptable. The MAX4551CSE datasheet confirms this in the truth table and pin-function description.
Does MAX4551CSE support single-supply operation?
Yes, MAX4551CSE supports single-supply operation from +2.7V to +12V with V− connected to GND. At +2.7V, it maintains 500Ω max on-resistance and 1.1V/0.5V logic thresholds, enabling use in ultra-low-power portable devices. The device's internal level translators ensure proper gate drive even at minimum supply, and rail-to-rail analog capability remains intact - allowing signals from 0V to V+ without clipping. This is validated in the "Electrical Characteristics-Single +3V Supply" section of the datasheet.
How does MAX4551CSE achieve ±15kV ESD protection?
MAX4551CSE achieves ±15kV IEC 1000-4-2 ESD protection on NC/NO pins using on-chip bidirectional silicon-controlled rectifiers (SCRs) tied directly to GND - not diode clamps to V+ or V−. During an ESD event, these SCRs trigger in <5ns and shunt >95% of surge current safely to ground, avoiding supply rail disturbance. The holding current is 70mA (positive) / 65mA (negative) at +85°C, so external current limiting below 35mA ensures reliable SCR turn-off post-event. This architecture is detailed in the "Applications Information" section of the MAX4551CSE datasheet.
What is the maximum analog signal voltage range for MAX4551CSE?
The MAX4551CSE supports rail-to-rail analog signals from V− to V+. With ±5V dual supplies, this means ±4.5V (guaranteed), and with +5V single supply (V− = GND), the range is 0V to +4.5V. Signals exceeding V+ or V− are clamped by internal reverse-biased diodes, but sustained overvoltage risks damage. The absolute maximum ratings specify V+ to V− differential ≤13.0V, and all analog pins tolerate (V− − 0.3V) to (V+ + 0.3V). These limits are explicitly defined in the "Absolute Maximum Ratings" and "Analog Signal Range" tables of the MAX4551CSE datasheet.
Is MAX4551CSE pin-compatible with industry-standard analog switches?
Yes, MAX4551CSE is pin-compatible with the DG211 quad SPST analog switch in the same 16-pin narrow SO package. Pin functions match exactly: IN1–IN4, COM1–COM4, NC1–NC4, V+, V−, GND, and N.C. This allows drop-in replacement in legacy designs without PCB modification. However, MAX4551CSE adds ±15kV ESD protection and tighter on-resistance matching (4Ω vs. DG211's 15Ω), making it a functional and mechanical upgrade. Compatibility is confirmed in the "Features" section and pin diagrams of the MAX4551CSE datasheet.
MAX4551CSE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 120Ohm
- Channel-to-Channel Matching (ΔRon):
- 1Ohm
- Voltage - Supply, Single (V+):
- 2V ~ 12V
- Voltage - Supply, Dual (V±):
- ±2V ~ 6V
- Switch Time (Ton, Toff) (Max):
- 110ns, 90ns
- -3db Bandwidth:
- -
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 3.5pF, 3pF
- 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
MAX4551CSE FAQ
1.How can I place an order for MAX4551CSE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4551CSE 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 MAX4551CSE reliable?
The price and inventory of MAX4551CSE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4551CSE is usually 5 days.
3.What payment methods are accepted for MAX4551CSE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4551CSE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4551CSE?
MAX4551CSE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4551CSE 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 MAX4551CSE?
For technical support, including MAX4551CSE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4551CSE requirements.
6.How does Aetrix verify that MAX4551CSE is sourced from the original manufacturer or authorized distributors?
All MAX4551CSE 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 MAX4551CSE meets industry standards.
7.What is the process for return or replacement of MAX4551CSE?
All MAX4551CSE units undergo pre-shipment inspection (PSI). If there is an issue with MAX4551CSE, 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 MAX4551CSE part is unused and in its original packaging.
Return procedure for MAX4551CSE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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