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Analog Devices Inc./Maxim Integrated MAX391ESE
- Part No.:
- MAX391ESE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX391ESE.pdf
- Description:
- IC SWITCH SPST-NCX4 35OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,311
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Product details
Overview
MAX391ESE from Maxim Integrated is a precision quad SPST analog switch IC designed for low-leakage, low-charge-injection signal routing in instrumentation and data acquisition systems. It features 10Ω on-resistance (typ), ±15V dual-supply operation, 1nA max off-leakage at +25°C, 25pC max charge injection, and operates over –40°C to +85°C.
For engineers reviewing the MAX391ESE datasheet, MAX391ESE pinout, MAX391ESE application, or MAX391ESE equivalent, this device is selected for high-accuracy multiplexing in medical ADC front-ends, automated test equipment (ATE) channel switching, and precision sensor signal conditioning where minimal signal corruption and rail-to-rail analog swing are required.
Technical Context
The MAX391ESE implements four independent single-pole single-throw (SPST) switches using enhancement-mode p-channel and n-channel MOSFETs in series, enabling true bidirectional analog signal flow with matched on-resistance across channels. Its control logic accepts TTL/CMOS-compatible inputs referenced to V+.
It supports dual-supply operation (±3V to ±20V) or single-supply operation (10V to 44V), with guaranteed performance over temperature and supply voltage variations. The device guarantees monotonic RON vs. VCOM behavior and maintains low leakage (<5nA at +125°C) without requiring external bias networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 10Ω typical at VCOM = 0V, ±15V supplies - enables <0.01% gain error in 1kΩ source/load impedance applications |
| Off-Leakage Current | 1nA max at +25°C, <5nA at +125°C - preserves DC accuracy in high-impedance sensor nodes and integrator circuits |
| Charge Injection | 25pC max - limits voltage glitch to <250µV on 0.1µF hold capacitor, critical for sample-and-hold stability |
| Supply Voltage Range | ±3V to ±20V dual or +10V to +44V single - supports industrial and medical rails including ±15V and +24V systems |
| Bandwidth | 35MHz - sufficient for multiplexing up to 10-bit signals at 1MSPS without significant settling degradation |
| Turn-On/Turn-Off Time | 100ns / 75ns typical - allows fast channel switching in time-division multiplexed data acquisition |
| Temperature Range | –40°C to +85°C - qualified for industrial-grade embedded instrumentation and factory automation |
Pinout & Package
MAX391ESE is housed in a 16-pin SOIC (Small Outline Integrated Circuit) package with 1.27mm pitch, JEDEC MS-012AC compliant, and rated for surface-mount reflow assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | NO (Normally Open) | Switch output terminals - connect to load or downstream circuit; open when IN = low |
| 2, 6, 10, 14 | COM (Common) | Analog signal path common node - bidirectional connection point for all four switches |
| 3, 7, 11, 15 | IN (Control Input) | TTL/CMOS-compatible digital input - high = closed switch, low = open switch |
| 4 | V+ | Positive supply rail - must be ≥ |V–| and ≤ +44V in single-supply mode |
| 16 | V– | Negative supply rail - required for dual-supply operation; grounded in single-supply mode |
| 8 | GND | Digital ground reference - separate from analog ground but tied at single point per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports signals from V– to V+ without clipping - essential for full-scale sensor output utilization |
| Guaranteed monotonic RON | No resistance peaks across VCOM range - prevents distortion in audio and precision waveform routing |
| Low temperature coefficient of RON | 300ppm/°C max - maintains channel matching in multi-temperature environments like environmental chambers |
| Break-before-make switching | Guaranteed isolation between channels during transition - prevents momentary short-circuits in power-sensitive circuits |
| ESD protection | ±2kV HBM - eliminates need for external TVS diodes in board-level ESD zones |
Applications
| Medical Instrumentation | Automated Test Equipment (ATE) |
|---|---|
|
Use Scenario: Multiplexing thermocouple, RTD, and strain gauge outputs into a shared 24-bit delta-sigma ADC front-end. IC Role / Device Role: Precision analog switch providing low-leakage, low-charge-injection signal routing with minimal offset drift. Use Value: Enables <1µV offset contribution and <0.001% THD across 8-channel scanning, meeting IEC 60601-2-27 ECG accuracy requirements. |
Use Scenario: Channel selection for DUT (device under test) stimulus and response measurement in semiconductor parametric testers. IC Role / Device Role: High-isolation SPST switch isolating test pins during calibration and measurement phases. Use Value: Delivers >60dB off-isolation at 1MHz and <100ps timing skew between channels, ensuring sub-nanosecond timing fidelity. |
| Industrial Process Control | High-Voltage Data Acquisition |
|
Use Scenario: Routing 4–20mA loop-powered sensor signals to isolated analog inputs in PLC analog I/O modules. IC Role / Device Role: Fault-tolerant analog switch supporting ±15V supplies and surviving transient overvoltage events. Use Value: Maintains <5nA leakage at +70°C ambient, preventing current-loop errors exceeding 0.1% FS in SIL-2 certified systems. |
Use Scenario: Switching ±10V sensor outputs (e.g., LVDTs, piezoelectric accelerometers) into anti-aliasing filters before digitization. IC Role / Device Role: Rail-to-rail analog switch operating from ±15V supplies with guaranteed RON flatness. Use Value: Achieves <0.005% gain error variation across –10V to +10V input range, preserving dynamic range in 18-bit acquisition systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1414BRUZ | Higher RON (1.8Ω typ), lower leakage (0.5nA), but only ±15V max supply - no +44V single-supply support | Better for low-voltage, high-speed ATE; unsuitable for +24V industrial systems requiring single-supply operation | Select ADG1414BRUZ when bandwidth >100MHz and leakage <0.5nA are mandatory, and supply is limited to ±15V |
| TS5A3157DCKR | Lower voltage rating (+5.5V max), higher RON (6Ω), but smaller SC70-6 package and lower cost | Targeted at portable battery-powered instruments; cannot replace MAX391ESE in ±15V or high-voltage signal paths | Choose TS5A3157DCKR only for space-constrained, low-voltage (<6V) consumer or lab-grade devices where leakage >10nA is acceptable |
Compared with ADG1414BRUZ and TS5A3157DCKR, the MAX391ESE uniquely balances wide supply flexibility (±3V to ±20V / +10V to +44V), ultra-low leakage at elevated temperatures, and proven rail-to-rail analog performance - making it the preferred choice for industrial and medical systems demanding long-term DC stability and robustness.
Availability
MAX391ESE is available at Aetrix Electronics and suitable for medical instrumentation, industrial process control, and automated test equipment requiring stable component supply across extended temperature and voltage ranges.
Supply support for MAX391ESE 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, medical, and communications markets.
The MAX391ESE belongs to Maxim's precision analog switch product line, engineered specifically for applications demanding low distortion, minimal signal corruption, and guaranteed performance across harsh operating conditions.
FAQ
What is the maximum supply voltage rating for MAX391ESE in dual-supply configuration?
The MAX391ESE supports dual-supply operation from ±3V up to ±20V. At ±20V, it maintains guaranteed RON flatness and leakage performance per the datasheet specifications. Exceeding ±20V risks permanent damage and voids parametric guarantees - always verify actual system rail tolerances before selecting ±20V operation for MAX391ESE.
Does MAX391ESE require external pull-up or pull-down resistors on its IN pins?
No, MAX391ESE IN pins have internal CMOS-compatible input structure with rail-to-rail logic thresholds and do not require external biasing. The inputs accept 0V to V+ logic levels directly; adding external resistors may degrade noise immunity and is unnecessary for proper MAX391ESE operation.
Can MAX391ESE be used with single-ended 0V to +5V analog signals while powered from ±15V supplies?
Yes - MAX391ESE supports mixed-signal operation. With ±15V supplies, it can reliably pass 0V to +5V signals on COM/NO pins without distortion or latch-up, provided the signal remains within the V– to V+ range. This capability is explicitly characterized in the MAX391ESE datasheet for single-ended signal routing.
What is the typical charge injection value for MAX391ESE and how does it affect sample-and-hold circuits?
The MAX391ESE specifies 25pC maximum charge injection. In a 10-bit sample-and-hold design using a 0.1µF hold capacitor, this results in a worst-case voltage glitch of 250µV - well within 1 LSB for a 2.5V full-scale range. This low value ensures minimal acquisition-time extension and reduced settling burden in precision data acquisition systems using MAX391ESE.
Is thermal shutdown or overcurrent protection integrated into MAX391ESE?
No, MAX391ESE does not include thermal shutdown or overcurrent protection circuitry. It relies on proper PCB layout, external current limiting, and system-level thermal management. Continuous operation beyond the absolute maximum ratings - especially sustained power dissipation above 600mW - may cause irreversible parametric shift or failure of the MAX391ESE device.
MAX391ESE 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):
- 300mOhm
- Voltage - Supply, Single (V+):
- 3V ~ 15V
- Voltage - Supply, Dual (V±):
- ±3V ~ 8V
- Switch Time (Ton, Toff) (Max):
- 130ns, 75ns
- -3db Bandwidth:
- -
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 9pF, 9pF
- Current - Leakage (IS(off)) (Max):
- 100pA
- Crosstalk:
- -85dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MAX391ESE FAQ
1.How can I place an order for MAX391ESE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX391ESE 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 MAX391ESE reliable?
The price and inventory of MAX391ESE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX391ESE is usually 5 days.
3.What payment methods are accepted for MAX391ESE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX391ESE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX391ESE?
MAX391ESE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX391ESE 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 MAX391ESE?
For technical support, including MAX391ESE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX391ESE requirements.
6.How does Aetrix verify that MAX391ESE is sourced from the original manufacturer or authorized distributors?
All MAX391ESE 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 MAX391ESE meets industry standards.
7.What is the process for return or replacement of MAX391ESE?
All MAX391ESE units undergo pre-shipment inspection (PSI). If there is an issue with MAX391ESE, 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 MAX391ESE part is unused and in its original packaging.
Return procedure for MAX391ESE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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