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Analog Devices Inc./Maxim Integrated MAX351EPE+
- Part No.:
- MAX351EPE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX351EPE+.pdf
- Description:
- IC SWITCH SPST-NCX4 35OHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,483
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Product details
Overview
MAX351EPE+ from Maxim Integrated is a precision quad SPST analog switch with four normally closed (NC) channels, designed for high-fidelity signal routing in rail-to-rail analog paths. It delivers <35Ω on-resistance (max), <2Ω channel-to-channel match, <3Ω on-resistance flatness over ±15.5V signal range, and <6nA off-leakage at +85°C-enabling accurate sample-and-hold and military-grade communications systems.
For engineers reviewing the MAX351EPE+ datasheet, MAX351EPE+ pinout, MAX351EPE+ application, or MAX351EPE+ equivalent, key selection criteria include guaranteed on-resistance matching across temperature, low 10pC charge injection for minimal signal disturbance, bipolar/singlesupply flexibility (±4.5V to ±20V or +10V to +30V), and 2000V ESD robustness in harsh environments.
Technical Context
The MAX351EPE+ implements monolithic CMOS SPST switching using Maxim's 44V silicon-gate process, enabling rail-to-rail analog signal handling up to ±15.5V with guaranteed flat on-resistance (∆3Ω max) and matched performance (<2Ω interchannel RON variation). Its logic inputs are TTL/CMOS-compatible with VL pin configurable for 5V or V+ referencing.
It operates with dual supplies (±4.5V to ±20V) or single supply (+10V to +30V), where V− must be tied to GND in unipolar mode. Charge injection is tightly controlled at ≤10pC, and off-isolation exceeds 68dB at 1MHz-critical for low-crosstalk multiplexing in test equipment and guidance systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On Resistance | <35Ω max - ensures minimal signal attenuation and gain error in precision analog paths |
| On Resistance Match | <2Ω between channels - enables matched gain/phase response in multi-channel instrumentation |
| On Resistance Flatness | ∆3Ω max over full analog range - preserves linearity in ±15.5V signal routing |
| Charge Injection | <10pC - reduces settling error in sample-and-hold circuits and ADC front-ends |
| Off-Leakage Current | <6nA at +85°C - maintains accuracy in high-impedance sensor interfaces and battery-operated systems |
| ESD Rating | >2000V per Method 3015.7 - supports reliable operation in field-deployed military radios and avionics |
| Supply Range | ±4.5V to ±20V or +10V to +30V - allows flexible power architecture in mixed-signal embedded systems |
Pinout & Package
MAX351EPE+ uses a 16-pin plastic DIP package (0.300" wide) with through-hole mounting, rated for -40°C to +85°C operation. Pin 1 is NC1, pin 2 is V−, pin 3 is GND, pin 4 is NC4, pin 5 is COM4, pin 6 is IN4, pin 7 is IN3, pin 8 is COM3, pin 9 is NC3, pin 10 is VL, pin 11 is V+, pin 12 is NC2, pin 13 is COM2, pin 14 is IN2, pin 15 is IN1, and pin 16 is COM1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 | Logic control input | Active-low logic controls NC switch state; compatible with TTL/CMOS when VL = 5V |
| COM1–COM4 | Analog common terminal | Signal input/output node for each NC channel; supports rail-to-rail ±15.5V analog swing |
| NC1–NC4 | Analog normally closed terminal | Connected to COM when IN = logic low; open when IN = logic high |
| V+ | Positive supply voltage | Bias for substrate and analog path; max 44V; connects to IC substrate |
| V− | Negative supply voltage | Required for bipolar operation; tie to GND for single-supply use |
| GND | Ground reference | Logic and analog ground return; separate from V− in dual-supply configurations |
| VL | Logic supply voltage | Sets logic threshold: 5V for TTL compatibility, V+ for CMOS levels |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports ±15.5V signal range with no clipping or distortion under full supply conditions |
| Guaranteed on-resistance matching | ≤2Ω max mismatch between any two channels ensures consistent channel gain in multi-path systems |
| Low charge injection | ≤10pC limits voltage glitch on sampled nodes-critical for sub-12-bit ADC accuracy |
| Bipolar and single-supply operation | Operates from ±4.5V to ±20V or +10V to +30V without external level shifters or bias networks |
| High ESD robustness | Exceeds 2000V HBM-reduces field failure risk in handheld test gear and ruggedized comms hardware |
Applications
| Sample-and-Hold Circuits | Military Radios |
|---|---|
Use Scenario: Precision sampling of RF IF signals prior to digitization in secure voice/data transceivers. IC Role / Device Role / Timing Role: Normally closed analog switch isolating hold capacitor during acquisition phase; fast turn-off (<145ns) minimizes aperture jitter. Use Value: Low 10pC charge injection prevents droop-induced quantization error; matched RON ensures consistent time constants across parallel channels. | Use Scenario: Signal routing in multiband HF/VHF tactical radios exposed to vibration, temperature extremes, and ESD events. IC Role / Device Role / Timing Role: Channel-select switch in antenna diversity and filter bank control; NC configuration provides fail-safe signal continuity. Use Value: >2000V ESD rating and -40°C to +85°C qualification ensure reliability in uncontrolled field environments without derating. |
| Guidance and Control Systems | Test Equipment |
Use Scenario: Analog multiplexing of inertial sensor outputs (gyros, accelerometers) in flight control units. IC Role / Device Role / Timing Role: Quad NC switch selecting among redundant sensor pairs; low leakage (<6nA) preserves DC accuracy over long integration periods. Use Value: ∆3Ω RON flatness across ±10V signal range eliminates gain nonlinearity in closed-loop servo feedback paths. | Use Scenario: Automated test fixture switching between DUTs and measurement instruments (oscilloscopes, SMUs). IC Role / Device Role / Timing Role: High-fidelity signal path selector with minimal crosstalk (<-85dB) and fast settling (<175ns turn-on). Use Value: 68dB off-isolation and low on-capacitance (9pF) maintain signal integrity up to 1MHz during parametric sweeps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX351CPE+ | 0°C to +70°C temperature range; identical pinout, electrical specs, and NC functionality | Not qualified for extended industrial or automotive ambient conditions | Select MAX351CPE+ only for commercial-grade systems operating within 0–70°C ambient |
| ADG1414BRUZ | Quad SPST, but normally open (NO); 1.5Ω typical RON, 35V max supply, LFCSP package | Lacks NC default state; requires active logic drive for all channel closures | Choose ADG1414BRUZ when NO behavior and lower RON outweigh need for fail-safe closure |
Compared with MAX351CPE+, the MAX351EPE+ adds extended temperature support (-40°C to +85°C) essential for outdoor or engine-bay deployments; versus ADG1414BRUZ, it provides inherent NC safety and DIP packaging for prototyping and legacy board compatibility, though with higher RON.
Availability
MAX351EPE+ is available at Aetrix Electronics and suitable for military radios, guidance and control systems, and test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX351EPE+ 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, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.
The MAX351EPE+ belongs to Maxim's precision analog switch product line, engineered for low-distortion, high-reliability signal routing in mission-critical systems where parameter matching, leakage control, and ruggedness are non-negotiable.
FAQ
What is the maximum analog signal voltage range supported by the MAX351EPE+?
The MAX351EPE+ supports a rail-to-rail analog signal range of ±15.5V when operated with ±16.5V supplies. This is enabled by its 44V breakdown voltage and internal clamping diodes. The actual usable range scales with supply rails-for example, ±10V supplies yield ±8.5V signal swing. This specification is guaranteed across the full -40°C to +85°C operating temperature range for the MAX351EPE+.
Does the MAX351EPE+ require external pull-up resistors on its logic inputs?
No, the MAX351EPE+ does not require external pull-up resistors. Its CMOS/TTL-compatible logic inputs draw less than ±0.5µA over temperature, and the VL pin allows direct interfacing to 3.3V or 5V logic families without external biasing. When VL = 5V, the input thresholds are optimized for TTL; when VL = V+, thresholds align with CMOS levels-both configurations function reliably for the MAX351EPE+.
How does the on-resistance matching specification apply to the MAX351EPE+?
The MAX351EPE+ guarantees ≤2Ω maximum difference in on-resistance between any two of its four NC channels, measured under identical conditions (same supply, temperature, and signal voltage). This matching is specified and tested with bipolar supplies (±15V) and ensures consistent gain, phase, and settling behavior across channels-critical for differential signal routing and multi-channel data acquisition where channel-to-channel tracking matters.
Can the MAX351EPE+ operate from a single +12V supply?
Yes, the MAX351EPE+ operates from a single +12V supply. In this configuration, V− must be connected to GND, VL should be set to +5V for TTL compatibility, and the analog signal range becomes 0V to +10.8V (typical). Switching times increase slightly versus bipolar operation (tON ≤ 250ns, tOFF ≤ 220ns), but all key parameters-including leakage, charge injection, and RON flatness-remain fully specified for the MAX351EPE+.
What is the purpose of the VL pin on the MAX351EPE+?
The VL pin on the MAX351EPE+ sets the logic threshold voltage for the IN1–IN4 control inputs. Connecting VL to +5V configures the inputs for TTL compatibility (VIL ≤ 0.8V, VIH ≥ 2.4V); connecting VL to V+ enables CMOS-level thresholds (VIL ≤ 0.3×V+, VIH ≥ 0.7×V+). This flexibility allows seamless integration with diverse host controllers while maintaining low input current (<0.5µA) across temperature for the MAX351EPE+.
MAX351EPE+ 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):
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-PDIP
MAX351EPE+ FAQ
1.How can I place an order for MAX351EPE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX351EPE+ 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 MAX351EPE+ reliable?
The price and inventory of MAX351EPE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX351EPE+ is usually 5 days.
3.What payment methods are accepted for MAX351EPE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX351EPE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX351EPE+?
MAX351EPE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX351EPE+ 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 MAX351EPE+?
For technical support, including MAX351EPE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX351EPE+ requirements.
6.How does Aetrix verify that MAX351EPE+ is sourced from the original manufacturer or authorized distributors?
All MAX351EPE+ 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 MAX351EPE+ meets industry standards.
7.What is the process for return or replacement of MAX351EPE+?
All MAX351EPE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX351EPE+, 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 MAX351EPE+ part is unused and in its original packaging.
Return procedure for MAX351EPE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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