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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:3,084
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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 signal range, <250pA leakage at +25°C, and sub-175ns turn-on time. It operates from ±4.5V to ±20V bipolar or +10V to +30V single supply, supporting military radios and sample-and-hold circuits.
For engineers reviewing the MAX351EPE datasheet, MAX351EPE pinout, MAX351EPE application, or MAX351EPE equivalent, key selection criteria include guaranteed on-resistance matching across temperature, low charge injection (≤10pC), ESD tolerance >2000V, rail-to-rail analog handling, and compatibility with TTL/CMOS logic levels under wide supply conditions.
Technical Context
The MAX351EPE uses Maxim's 44V silicon-gate process to achieve low charge injection and high breakdown voltage. Its internal architecture ensures matched on-resistance between all four NC switches and maintains flat RON across the full analog input range (VCOM = V− to V+), critical for precision instrumentation.
It supports dual-supply operation (±4.5V to ±20V) and single-supply mode (+10V to +30V), with VL pin configurable for TTL (5V) or CMOS logic thresholds. Input logic is compatible with standard CMOS/TTL families, and internal protection diodes clamp signals exceeding V+ or V−.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On Resistance (max) | 35Ω - Ensures minimal signal attenuation and gain error in precision analog paths |
| On Resistance Match | <2Ω - Guarantees consistent channel behavior for differential or multi-path signal routing |
| On Resistance Flatness | ∆3Ω max - Maintains linearity and low THD across full analog signal swing (V− to V+) |
| Charge Injection | ≤10pC - Limits voltage glitch in sample-and-hold and switched-capacitor circuits |
| Off-Leakage Current | <6nA at +85°C - Preserves accuracy in high-impedance sensor interfaces and battery-operated systems |
| ESD Rating | >2000V (HBM) - Enables robust handling in manufacturing and field-deployed equipment |
| Supply Range | ±4.5V to ±20V or +10V to +30V - Supports rail-to-rail analog signal handling without level-shifting |
Pinout & Package
MAX351EPE is housed in a 16-pin plastic DIP package (0.300" width), rated for −40°C to +85°C operation. Pin 13 is V+, pin 4 is V−, pin 5 is GND, pin 12 is VL (logic supply), and pins 1/16/9/8 are IN1–IN4 control inputs. COM1–COM4 (pins 2/15/10/7) connect to analog signal sources; NC1–NC4 (pins 1/16/11/6 for MAX351) serve as normally closed switch terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 (Pins 1,16,9,8) | Logic Control Input | Active-low control: logic 0 closes NC switch; logic 1 opens it - enables direct TTL/CMOS interfacing |
| COM1–COM4 (Pins 2,15,10,7) | Analog Common Terminal | Primary analog path connection point - must be routed with controlled impedance for signal integrity |
| NC1–NC4 (Pins 1,16,11,6) | Normally Closed Analog Terminal | Connected to COM when IN = 0; open when IN = 1 - defines default-closed fail-safe behavior |
| V+ (Pin 13) | Positive Supply Voltage | Bias for analog channel and substrate - must be ≥|V−| + 1V and ≤44V above V− |
| V− (Pin 4) | Negative Supply Voltage | Reference for bipolar operation - connects to ground in single-supply mode |
| GND (Pin 5) | Ground Reference | Logic and substrate reference - separate from analog ground in mixed-signal layouts |
| VL (Pin 12) | Logic Supply Voltage | Sets input threshold: 5V for TTL compatibility, tied to V+ for CMOS logic levels |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports VCOM, VNC from V− to V+ - eliminates need for external level shifters in wide-dynamic-range systems |
| Guaranteed on-resistance flatness | ∆3Ω max over full analog range - ensures consistent gain and minimal harmonic distortion in audio/IF paths |
| Low charge injection | ≤10pC - reduces sampling error in precision data acquisition and ADC front-ends |
| High ESD tolerance | >2000V HBM - meets MIL-STD-883 Class 3 requirements for ruggedized communications hardware |
| Wide dual/single supply support | Operates from ±4.5V to ±20V or +10V to +30V - simplifies power architecture in mixed-voltage systems |
Applications
| Military Radios | Sample-and-Hold Circuits |
|---|---|
Use Scenario: Signal path switching in secure HF/VHF transceivers requiring high reliability under vibration and temperature extremes. IC Role / Device Role / Timing Role: Quad NC switch routes antenna duplexing, filter banks, and calibration paths with fail-closed safety behavior. Use Value: Guaranteed <2Ω RON match preserves phase coherence across RF signal paths; >2000V ESD withstand prevents field failure during handling. | Use Scenario: Precision hold capacitor charging in 16-bit SAR ADC front-ends with sub-LSB settling requirements. IC Role / Device Role / Timing Role: Low-charge-injection NC switch isolates hold capacitor during acquisition phase. Use Value: ≤10pC charge injection minimizes droop-induced offset error; flat RON ensures consistent time constant across channels. |
| Guidance and Control Systems | Battery-Operated Test Equipment |
Use Scenario: Redundant sensor signal routing in inertial measurement units (IMUs) where continuity on power loss is mandatory. IC Role / Device Role / Timing Role: Normally closed configuration provides default signal path integrity during brownout or reset events. Use Value: Fail-safe NC topology eliminates need for external pull-up/pull-down; <6nA off-leakage preserves battery life over years of standby. | Use Scenario: Portable multimeter analog front-end switching between voltage, current, and resistance measurement modes. IC Role / Device Role / Timing Role: Quad SPST switch selects input ranges and protection paths while maintaining low thermal EMF. Use Value: <35Ω RON limits burden voltage in current measurements; single +12V supply operation simplifies battery regulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX352EPE | Four normally open (NO) configuration vs. MAX351EPE's NC topology; identical RON, leakage, and timing specs | Used where default-open safety is required (e.g., power-off isolation), not fail-closed signal continuity | Select MAX352EPE only when circuit requires de-energized-open behavior - pinout and footprint are identical but logic polarity is inverted |
| ADG441BRZ | Quad NO switch with 40Ω RON (max), 25pC charge injection, −40°C to +85°C rating, SOIC-16 package | Higher on-resistance and charge injection limit use in ultra-precision sample-hold or low-noise RF paths | Consider ADG441BRZ only for cost-sensitive industrial controls where <10pC charge injection is non-critical |
Compared with MAX352EPE, the MAX351EPE provides fail-safe continuity; compared with ADG441BRZ, it delivers tighter RON matching, lower charge injection, and superior leakage performance - making it preferred for military, aerospace, and high-resolution data acquisition.
Availability
MAX351EPE is available at Aetrix Electronics and suitable for military radios, guidance systems, sample-and-hold circuits, and battery-operated 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 precision analog, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.
The MAX351/MAX352/MAX353 family was engineered specifically for high-reliability analog signal routing where on-resistance matching, low charge injection, and rail-to-rail operation are essential - targeting defense electronics and precision instrumentation.
FAQ
What is the operating temperature range of the MAX351EPE?
The MAX351EPE is specified for operation from −40°C to +85°C. This extended temperature grade makes it suitable for deployment in harsh environments such as vehicle-mounted radios, avionics subsystems, and outdoor test equipment where commercial-grade parts would fail. The device maintains guaranteed on-resistance matching and leakage performance across this full range.
How does the MAX351EPE differ from the MAX351CPE?
The MAX351EPE and MAX351CPE share identical electrical specifications and pinout, but differ in temperature rating: MAX351EPE operates from −40°C to +85°C, while MAX351CPE is limited to 0°C to +70°C. Both use the same 16-pin plastic DIP package. The 'E' suffix denotes extended temperature qualification, critical for military and industrial applications.
Can the MAX351EPE operate from a single +12V supply?
Yes, the MAX351EPE supports single-supply operation from +10V to +30V. When using +12V, connect V− to GND, tie VL to +5V for TTL compatibility (or to +12V for CMOS logic), and ensure analog signals remain within 0V to +12V. On-resistance increases slightly versus ±15V operation, but remains below 45Ω (max) with guaranteed flatness.
What is the purpose of the VL pin on the MAX351EPE?
The VL pin sets the logic input threshold voltage. Tie VL to +5V for TTL-compatible inputs (VIH = 2.4V, VIL = 0.8V); tie it to V+ for CMOS-compatible thresholds (VIH ≈ 0.7×V+, VIL ≈ 0.3×V+). This flexibility allows seamless integration with diverse microcontrollers and FPGAs without external level shifters - a key feature of the MAX351EPE design.
Is the MAX351EPE pin-compatible with other devices in the MAX351/MAX352/MAX353 family?
Yes, all members of the MAX351/MAX352/MAX353 family - including MAX351EPE, MAX352EPE, and MAX353EPE - share identical 16-pin DIP/SO/QFN footprints and pin functions. Only the switch configuration differs: MAX351EPE is quad NC, MAX352EPE is quad NO, and MAX353EPE is dual NO/dual NC. This enables layout reuse across variants.
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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