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Analog Devices Inc./Maxim Integrated MAX351CSE+
- Part No.:
- MAX351CSE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX351CSE+.pdf
- Description:
- IC SWITCH SPST-NCX4 35OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,727
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Product details
Overview
MAX351CSE+ from Maxim Integrated is a precision quad SPST analog switch with four normally closed (NC) channels, designed for high-fidelity signal routing in precision instrumentation and military-grade systems. It delivers <35Ω on-resistance (typ. 22Ω), <2Ω channel-to-channel match, <3Ω on-resistance flatness over rail-to-rail analog signals (±15.5V), and <10pC charge injection - enabling low-distortion sample-and-hold and guidance system signal conditioning.
For engineers reviewing the MAX351CSE+ datasheet, MAX351CSE+ pinout, MAX351CSE+ application, or MAX351CSE+ equivalent, key selection criteria include guaranteed on-resistance matching across temperature, ESD >2000V robustness, dual-supply (±4.5V to ±20V) or single-supply (+10V to +30V) operation, and rail-to-rail analog handling without signal clipping.
Technical Context
The MAX351CSE+ implements four independent NC-switch cells fabricated in Maxim's 44V silicon-gate process, supporting bipolar supplies up to ±20V or unipolar supplies from +10V to +30V while maintaining CMOS/TTL logic compatibility via VL pin. Its architecture guarantees matched on-resistance (<2Ω) and flatness (∆3Ω max) only under bipolar operation, per datasheet Note 5.
It features low leakage (<250pA at +25°C, <6nA at +85°C), fast switching (tON <175ns, tOFF <145ns), and rail-to-rail analog signal range (VCOM, VNO/NC = V− to V+), enabled by internal clamping diodes and substrate tie to V+. Charge injection is tightly controlled at <10pC, critical for precision sampling integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On Resistance | ≤35Ω max (22Ω typ); ensures minimal signal attenuation and gain error in precision gain-setting or multiplexing paths |
| On Resistance Match | ≤2Ω between channels; enables accurate differential signal routing and matched filter banks |
| On Resistance Flatness | ∆3Ω max over full analog range; maintains consistent gain/attenuation across ±15.5V input swing |
| Charge Injection | ≤10pC; limits voltage glitch in sample-and-hold hold capacitors, preserving ADC accuracy |
| Off-Leakage Current | ≤6nA at +85°C; prevents DC error accumulation in high-impedance sensor front-ends |
| Supply Range | +10V to +30V (single) or ±4.5V to ±20V (dual); supports industrial and military power architectures |
| ESD Rating | >2000V per Method 3015.7; provides robust handling in field-deployable equipment assembly |
Pinout & Package
MAX351CSE+ uses a 16-pin narrow SOIC package (JEDEC MS-012AA, 3.9mm width), RoHS-compliant and rated for 0°C to +70°C operation. Pin 1 is IN1; pin 16 is COM1; substrate tied to V+ (pin 13).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 (pins 15,14,7,6) | Logic control inputs | CMOS/TTL-compatible digital enable lines; active-low logic opens NC path |
| COM1–COM4 (pins 16,13,10,9) | Analog common terminals | Signal entry points for each NC switch; routed to NC pins when IN = low |
| NC1–NC4 (pins 1,12,11,4) | Normally closed analog outputs | Default-connected paths to COMx; open only when corresponding INx = high |
| V+ (pin 11) | Positive supply | Substrate connection point; must be ≥ V− + 0.3V and ≤44V above V− |
| V− (pin 2) | Negative supply | Reference for bipolar operation; connects to GND in single-supply mode |
| GND (pin 3) | Ground reference | Logic and analog return; separate from V− in dual-supply configs |
| VL (pin 10) | Logic supply voltage | Sets logic threshold: 5V for TTL, V+ for CMOS; decouples logic from analog rails |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports VCOM/VNC = V− to V+ (±15.5V typical), eliminating level-shifting in wide-dynamic-range systems |
| Guaranteed on-resistance matching | ≤2Ω channel-to-channel variation ensures balanced performance in differential or multi-path signal chains |
| Low charge injection | ≤10pC minimizes hold-step error in precision sample-and-hold circuits, improving effective resolution |
| Bipolar or single-supply operation | Operates from ±4.5V to ±20V or +10V to +30V - simplifies power design in mixed-signal military platforms |
| ESD robustness | >2000V per Method 3015.7 allows direct integration into handheld or field-replaceable modules without external protection |
Applications
| Sample-and-Hold Circuits | Military Radios |
|---|---|
Use Scenario: Precision data acquisition systems capturing fast analog waveforms before ADC conversion. IC Role / Device Role / Timing Role: Quad NC switch routes analog input to hold capacitor; low charge injection (<10pC) prevents hold-mode voltage corruption. Use Value: Enables 16-bit+ effective resolution by limiting aperture uncertainty and settling error in high-speed sampling. |
Use Scenario: Signal path switching in secure HF/VHF transceivers requiring low distortion and high reliability. IC Role / Device Role / Timing Role: Isolates RF front-end stages during transmit/receive transitions using four independent NC paths. Use Value: Maintains signal integrity across 0–20MHz band with <35Ω on-resistance and <6nA leakage at +85°C. |
| Guidance and Control Systems | Test Equipment |
Use Scenario: Redundant sensor signal routing in inertial measurement units (IMUs) and flight control computers. IC Role / Device Role / Timing Role: Four NC switches provide fail-safe default connectivity for gyro/accelerometer analog outputs. Use Value: Guaranteed <2Ω on-resistance match ensures identical gain/phase response across redundant channels. |
Use Scenario: Automated test fixture signal matrix for calibrating multichannel DMMs and oscilloscopes. IC Role / Device Role / Timing Role: Multiplexes reference voltages and calibration sources to DUT inputs with minimal loading. Use Value: <250pA leakage at +25°C and flat on-resistance preserve microvolt-level accuracy in metrology-grade setups. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX352CSE+ | Four normally open (NO) configuration vs. MAX351CSE+'s NC; identical specs otherwise | Used where default-open safety state required (e.g., power-down isolation) | Select MAX352CSE+ when fail-safe open behavior is needed; pinout and timing match MAX351CSE+ |
| ADG1414BRUZ | Higher on-resistance (1.8Ω typ), wider temp range (−40°C to +125°C), but no guaranteed match spec | Better suited for automotive under-hood use; lacks channel-matching guarantee for precision metrology | Choose ADG1414BRUZ for extended temperature operation; avoid where <2Ω matching is mandatory |
Compared with MAX351CSE+, MAX352CSE+ offers identical performance in a complementary NO topology ideal for safety-critical disconnect, while ADG1414BRUZ trades guaranteed matching for broader temperature capability - making MAX351CSE+ optimal for precision-guidance and sample-and-hold where channel uniformity is non-negotiable.
Availability
MAX351CSE+ is available at Aetrix Electronics and suitable for military radios, guidance and control systems, and precision test equipment requiring stable component supply, long-term obsolescence management, and traceable sourcing.
Supply support for MAX351CSE+ 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 demanding industrial, military, and communications applications, with emphasis on precision, reliability, and ruggedized operation.
The MAX351/MAX352/MAX353 family was engineered specifically for high-accuracy signal routing in defense electronics and instrumentation, where guaranteed on-resistance matching, low charge injection, and rail-to-rail analog handling are essential.
FAQ
What is the operating temperature range for MAX351CSE+?
The MAX351CSE+ is specified for 0°C to +70°C ambient operation. This commercial-grade temperature range aligns with its narrow SOIC packaging and targets non-extended-environment applications such as benchtop test gear and line-powered military subsystems. For extended ranges, consider MAX351ESE (−40°C to +85°C) or MAX351MJE (−55°C to +125°C).
Does MAX351CSE+ support single-supply operation?
Yes, MAX351CSE+ supports single-supply operation from +10V to +30V. In this mode, connect V− to GND and set VL to 5V for TTL compatibility or to V+ for CMOS logic levels. The analog signal range remains rail-to-rail (0V to V+), preserving full dynamic range without level-shifting circuitry.
How does the normally closed (NC) configuration of MAX351CSE+ affect system safety?
The NC configuration of MAX351CSE+ ensures default signal continuity when power is absent or logic inputs are floating - a critical fail-safe trait in guidance systems and emergency comms hardware. Only when INx is driven high does the corresponding NC path open, enabling intentional isolation without external pull-up/down components.
Is MAX351CSE+ pin-compatible with MAX352CSE+?
Yes, MAX351CSE+ and MAX352CSE+ share identical pinout, package, and timing characteristics - differing only in switch logic polarity (NC vs. NO). This allows direct substitution in layouts where functional behavior can be adjusted via firmware or external logic, with no PCB changes required.
What is the maximum analog signal voltage supported by MAX351CSE+?
MAX351CSE+ supports analog signals from V− to V+, with absolute maximum ratings of V+ ≤ 44V above V−. At ±15V supplies, the usable analog range is ±15.5V (per datasheet Table "Analog Signal Range"). Exceeding V+ or V− triggers internal clamping diodes, so signal excursions must stay within these bounds to avoid current limiting.
MAX351CSE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 35Ohm
- Channel-to-Channel Matching (ΔRon):
- 2Ohm (Max)
- Voltage - Supply, Single (V+):
- 10V ~ 30V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 175ns, 145ns
- -3db Bandwidth:
- -
- Charge Injection:
- 5pC
- Channel Capacitance (CS(off), CD(off)):
- 9pF, 9pF
- Current - Leakage (IS(off)) (Max):
- 250pA
- Crosstalk:
- -85dB @ 1MHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MAX351CSE+ FAQ
1.How can I place an order for MAX351CSE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX351CSE+ 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 MAX351CSE+ reliable?
The price and inventory of MAX351CSE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX351CSE+ is usually 5 days.
3.What payment methods are accepted for MAX351CSE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX351CSE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX351CSE+?
MAX351CSE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX351CSE+ 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 MAX351CSE+?
For technical support, including MAX351CSE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX351CSE+ requirements.
6.How does Aetrix verify that MAX351CSE+ is sourced from the original manufacturer or authorized distributors?
All MAX351CSE+ 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 MAX351CSE+ meets industry standards.
7.What is the process for return or replacement of MAX351CSE+?
All MAX351CSE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX351CSE+, 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 MAX351CSE+ part is unused and in its original packaging.
Return procedure for MAX351CSE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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