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Analog Devices Inc./Maxim Integrated MAX385ESE+T
- Part No.:
- MAX385ESE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX385ESE+T.pdf
- Description:
- IC SWITCH DPST-NOX2 35OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,352
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Product details
Overview
MAX385ESE+T from Maxim Integrated is a precision dual-pole single-throw (DPST) analog switch with normally open configuration, designed for low-voltage signal routing in precision instrumentation and battery-powered systems. It delivers 20Ω typical on-resistance (≤35Ω max), <2Ω matched RON between channels, <5pC charge injection, <2.5nA off-leakage at +85°C, and operates from ±3V to ±8V dual supplies or +3V to +15V single supply.
For engineers reviewing the MAX385ESE+T datasheet, MAX385ESE+T pinout, MAX385ESE+T application, or MAX385ESE+T equivalent, this page provides verified electrical behavior, package-specific terminal mapping, real-world use cases in military radios and test equipment, and validated alternative options for signal-path redesign.
Technical Context
The MAX385ESE+T implements a monolithic silicon-gate CMOS architecture optimized for rail-to-rail analog signal handling across its full ±8V dual-supply or +15V single-supply range. Its internal switch topology guarantees flat on-resistance (<4Ω variation) over the entire analog input span and maintains sub-100ns turn-off timing even under worst-case temperature and voltage conditions.
Logic inputs are TTL/CMOS-compatible with 3V, 5V, ±3V, and ±5V logic families, enabling direct interfacing with microcontrollers and FPGAs without level-shifting. Charge injection is tightly controlled (<5pC) to minimize transient errors in sample-and-hold and multiplexed ADC front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance | 20Ω typical (≤35Ω max) - ensures minimal signal attenuation and gain error in precision sensor interfaces |
| RON match | <2Ω between channels - enables accurate differential signal switching without channel-to-channel gain mismatch |
| Charge injection | <5pC - reduces settling error and droop in sample-and-hold circuits and data acquisition systems |
| Off-leakage current | <2.5nA at +85°C - preserves signal integrity in high-impedance sensor nodes and battery-monitoring paths |
| Turn-off time | <100ns - supports fast multiplexing in automated test equipment and real-time signal routing |
| Analog signal range | V− to V+ - allows rail-to-rail AC/DC signal switching without clipping in ±5V or +12V systems |
| Supply range | +3V to +15V single or ±3V to ±8V dual - accommodates legacy industrial rails and modern low-power designs |
Pinout & Package
MAX385ESE+T is housed in a 16-pin narrow SO (small-outline) package with 1.27mm lead pitch, rated for −40°C to +85°C operation. The package meets JEDEC MS-012 standards and is RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 6, 8 | COM₁, COM₂, COM₃, COM₄ | Four independent analog common terminals - each connects to one DPST switch pair |
| 2, 7, 12 | N.C. | No internal connection - floating pins requiring no PCB routing or termination |
| 4, 5, 9, 16 | NO₁, NO₂, NO₃, NO₄ | Normally open analog outputs - conduct only when corresponding IN pin is asserted |
| 10, 15 | IN₁, IN₂ | Digital control inputs - IN₁ controls COM₁/COM₃ and NO₁/NO₃; IN₂ controls COM₂/COM₄ and NO₂/NO₄ |
| 11 | V+ | Positive analog and logic supply - must be powered before V− and logic signals per sequencing guidelines |
| 14 | V− | Negative analog supply - required for bipolar operation; tied to GND for single-supply use |
| 13 | GND | Logic ground reference - serves as return path for digital inputs and bias networks |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog inputs spanning full V− to V+ range - eliminates external clamping diodes in ±5V systems |
| Guaranteed RON flatness | <4Ω variation over specified signal range - ensures consistent gain and linearity across input voltage swing |
| Low power consumption | <10µW quiescent - extends battery life in portable test gear and handheld military radios |
| CMOS/TTL logic compatibility | Operates with 3V, 5V, ±3V, ±5V logic - simplifies interface to mixed-voltage FPGA I/O banks and MCU GPIOs |
| Pin compatibility | Drop-in replacement for DG401/DG403/DG405 - enables legacy design refresh without layout changes |
Applications
| Military Radio Front-End | Automated Test Equipment (ATE) |
|---|---|
Use Scenario: Signal path selection between antenna receive chains, IF filters, and demodulator inputs in compact SDR-based tactical radios. IC Role / Device Role / Timing Role: Dual-pole analog switch routing RF/IF signals while maintaining amplitude fidelity and phase coherence across bands. Use Value: Sub-100ns switching and <2Ω RON matching preserve modulation accuracy and adjacent-channel rejection during rapid band-hopping. | Use Scenario: Multiplexing of calibration references, DUT stimulus signals, and measurement inputs in benchtop multimeters and LCR analyzers. IC Role / Device Role / Timing Role: Precision analog switch enabling sequential connection of multiple sensors or standards to shared ADC and DAC resources. Use Value: <5pC charge injection and <2.5nA leakage ensure stable zero-offset and minimal drift during auto-calibration sequences. |
| Battery-Operated Medical Monitor | Heads-Up Display (HUD) Signal Routing |
Use Scenario: Selecting between ECG leads, SpO₂ photodiode outputs, and temperature sensor channels in wearable patient monitors. IC Role / Device Role / Timing Role: Low-leakage, low-RON analog switch isolating high-impedance biopotential sources from shared analog front-end circuitry. Use Value: <2.5nA off-leakage at +85°C prevents baseline shift in long-duration ambulatory recordings; 20Ω RON minimizes loading on 1MΩ+ electrode interfaces. | Use Scenario: Routing video sync pulses, RGB data lines, and brightness control signals between HUD controller and projection optics in aviation cockpits. IC Role / Device Role / Timing Role: Fast-switching analog multiplexer managing multiple timing-critical display interface paths with minimal skew. Use Value: <100ns tOFF and rail-to-rail capability support 60Hz+ video frame rates without visible tearing or luminance artifacts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1414BRUZ | 4-channel SPST, 1.8Ω RON, ±15V rating, higher supply current (25µA) | Better RON and voltage range but lacks DPST topology and matched channel pairing | Select when ultra-low on-resistance and extended voltage headroom outweigh need for integrated dual-pole control |
| TS5A23157DRCR | Single-supply only (+1.65V to +5.5V), 0.9Ω RON, 350ps tON, no dual-supply support | Optimized for portable USB-powered devices; incompatible with bipolar or >5.5V systems | Choose for cost-sensitive, single-rail consumer electronics where ±3V operation is unnecessary |
Compared with ADG1414BRUZ and TS5A23157DRCR, the MAX385ESE+T uniquely combines DPST topology, guaranteed RON matching, dual-supply flexibility, and military-grade leakage performance-making it irreplaceable in precision, wide-rail, and thermally demanding analog routing tasks.
Availability
MAX385ESE+T is available at Aetrix Electronics and suitable for military radios, automated test equipment, and battery-operated medical monitors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX385ESE+T 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 precision, reliability, and energy efficiency in harsh environments.
The MAX381/MAX383/MAX385 family was engineered specifically for low-distortion, low-leakage analog signal routing in defense, test, and portable instrumentation-prioritizing parameter matching, rail-to-rail operation, and robust overvoltage tolerance.
FAQ
What is the maximum allowable supply voltage difference for MAX385ESE+T?
The MAX385ESE+T specifies an absolute maximum V+ to V− differential of 17V. This limit applies regardless of individual rail voltages-for example, +15V/V− = −2V (17V total) is acceptable, but +12V/V− = −6V (18V) exceeds rating and risks permanent damage. Always observe proper power sequencing: V+ first, then V−, then logic inputs.
Does MAX385ESE+T support single-supply operation with a 3.3V rail?
Yes, MAX385ESE+T fully supports +3.3V single-supply operation. At V+ = 3.3V and V− = 0V, it maintains rail-to-rail analog switching (0V to 3.3V), 75Ω typical on-resistance, <0.2nA off-leakage at +25°C, and remains compatible with 3V logic inputs. Performance metrics degrade predictably per the +3.3V electrical characteristics table in the datasheet.
How many independent switches does MAX385ESE+T contain?
The MAX385ESE+T contains four independent single-pole single-throw (SPST) switches configured as two DPST sections: IN₁ controls COM₁/NO₁ and COM₃/NO₃; IN₂ controls COM₂/NO₂ and COM₄/NO₄. Each COM/NO pair functions as a discrete switch with no internal cross-connection between poles.
Is MAX385ESE+T pin-compatible with the DG405 analog switch?
Yes, MAX385ESE+T is explicitly pin-compatible with the DG405 per manufacturer documentation. Both devices share identical 16-pin narrow SO footprints, pin assignments (including COM/NO/IN/V+/V−/GND/N.C. mapping), and functional logic polarity. No PCB redesign is needed when substituting MAX385ESE+T into existing DG405 layouts.
What is the guaranteed on-resistance flatness specification for MAX385ESE+T?
The MAX385ESE+T guarantees on-resistance flatness of ≤4Ω maximum variation over its specified analog signal range (V− to V+). This means the difference between highest and lowest measured RON across the full input voltage span-under defined dual-supply conditions-is bounded at 4Ω, ensuring predictable gain stability in precision amplification and filtering paths.
MAX385ESE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- DPST - NO
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 35Ohm
- Channel-to-Channel Matching (ΔRon):
- 500mOhm
- Voltage - Supply, Single (V+):
- 3V ~ 15V
- Voltage - Supply, Dual (V±):
- ±3V ~ 8V
- Switch Time (Ton, Toff) (Max):
- 175ns, 100ns
- -3db Bandwidth:
- -
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 12pF, 12pF
- Current - Leakage (IS(off)) (Max):
- 200pA
- Crosstalk:
- -90dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MAX385ESE+T FAQ
1.How can I place an order for MAX385ESE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX385ESE+T 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 MAX385ESE+T reliable?
The price and inventory of MAX385ESE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX385ESE+T is usually 5 days.
3.What payment methods are accepted for MAX385ESE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX385ESE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX385ESE+T?
MAX385ESE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX385ESE+T 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 MAX385ESE+T?
For technical support, including MAX385ESE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX385ESE+T requirements.
6.How does Aetrix verify that MAX385ESE+T is sourced from the original manufacturer or authorized distributors?
All MAX385ESE+T 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 MAX385ESE+T meets industry standards.
7.What is the process for return or replacement of MAX385ESE+T?
All MAX385ESE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX385ESE+T, 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 MAX385ESE+T part is unused and in its original packaging.
Return procedure for MAX385ESE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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