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Analog Devices Inc./Maxim Integrated MAX385ESE+
- Part No.:
- MAX385ESE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- -
- Datasheet:
-
MAX385ESE+.pdf
- Description:
- IC SWITCH DUAL DPST 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,039
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Product details
Overview
MAX385ESE+ from Maxim Integrated is a precision dual-pole single-throw (DPST) analog switch with normally open configuration, designed for low-voltage signal routing in battery-powered and precision instrumentation systems. It delivers 20Ω typical on-resistance (≤35Ω max), <2Ω matched RON between channels, <5pC charge injection, and operates from ±3V to ±8V dual supplies or +3V to +15V single supply.
For engineers reviewing the MAX385ESE+ datasheet, MAX385ESE+ pinout, MAX385ESE+ application, or MAX385ESE+ equivalent, this device is selected for rail-to-rail analog signal handling, ultra-low leakage (<2.5nA at +85°C), fast switching (tON < 175ns), and CMOS/TTL logic compatibility across 3V/5V/±3V/±5V supplies.
Technical Context
The MAX385ESE+ implements a monolithic silicon-gate CMOS architecture optimized for low-voltage precision switching. Its internal design guarantees flat on-resistance (<4Ω variation) over the full analog signal range (V− to V+) and tightly matched channel characteristics-critical for multiplexer accuracy and sample-and-hold fidelity.
It supports break-before-make timing (10–20ns delay for MAX383 only; not applicable to MAX385), features integrated protection diodes on all analog pins, and maintains rail-to-rail signal capability without degradation in on-resistance or leakage across temperature (−40°C to +85°C operating range).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance | 20Ω typical, ≤35Ω max - ensures minimal signal attenuation and gain error in precision signal paths |
| On-resistance match | <2Ω between channels - enables accurate differential or ratiometric measurements |
| Charge injection | <5pC - reduces sampling glitches in ADC front-ends and sample-and-hold circuits |
| Off-leakage current | <2.5nA at +85°C - preserves signal integrity in high-impedance sensor interfaces |
| Switching speed | tON < 175ns, tOFF < 100ns - supports >5MHz multiplexing in test equipment and comms systems |
| Analog signal range | V− to V+ - allows true rail-to-rail operation with no headroom loss |
| Logic compatibility | TTL/CMOS with 3V, 5V, ±3V, ±5V supplies - simplifies interface to mixed-voltage digital controllers |
Pinout & Package
MAX385ESE+ is housed in a 16-pin narrow SO (small-outline) package, RoHS-compliant, with dimensions 9.80–10.00 mm × 3.80–4.00 mm × 1.35–1.75 mm (L×W×H), gull-wing leads, 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 13 | COM1, COM2, GND | Common terminals for two independent SPST switches; Pin 13 is logic ground reference |
| 2, 7, 12 | N.C. | No internal connection - must be left unconnected per datasheet |
| 9, 16 | NO1, NO2 | Normally open analog outputs - conduct only when corresponding IN is high |
| 10, 15 | IN1, IN2 | CMOS/TTL-compatible control inputs - IN1 controls COM1/NO1, IN2 controls COM2/NO2 |
| 11 | V+ | Positive analog and logic supply - accepts +3V to +15V (single) or up to +8V (dual) |
| 14 | V− | Negative analog supply - accepts −3V to −8V in dual-supply mode |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports signals from V− to V+ without clipping - essential for full-scale sensor and audio routing |
| Guaranteed flat on-resistance | <4Ω variation over full analog range - eliminates gain nonlinearity in precision gain stages |
| Low charge injection | <5pC - minimizes voltage step errors during sampling, critical for 14-bit+ ADC accuracy |
| Pin-compatible replacement | Direct drop-in for DG401/DG403/DG405 - enables legacy system upgrades without PCB redesign |
| Ultra-low power consumption | <10µW quiescent - extends battery life in portable medical and military radios |
Applications
| Sample-and-Hold Circuits | Test Equipment |
|---|---|
Use Scenario: Precision sampling of low-level sensor outputs before ADC conversion in data acquisition systems. IC Role / Device Role / Timing Role: DPST analog switch controlling hold capacitor charging path with minimal charge injection and leakage. Use Value: <5pC charge injection and <2.5nA off-leakage at +85°C preserve sampled voltage integrity for ≥14-bit resolution. | Use Scenario: Signal routing and channel selection in automated test equipment (ATE) and benchtop multimeters. IC Role / Device Role / Timing Role: High-accuracy multiplexer front-end enabling sequential measurement of multiple DUT signals. Use Value: 20Ω typical RON and <2Ω channel matching ensure consistent gain and offset across channels. |
| Battery-Operated Systems | Audio Signal Routing |
Use Scenario: Power-sensitive signal switching in handheld instruments, portable medical monitors, and field-deployable radios. IC Role / Device Role / Timing Role: Low-voltage analog switch enabling signal path reconfiguration while minimizing standby current. Use Value: <10µW quiescent power and ±3V minimum dual-supply operation extend runtime in 3.3V/±3.3V systems. | Use Scenario: Channel selection and mute control in professional audio mixers and headset interfaces. IC Role / Device Role / Timing Role: SPST switch isolating audio paths with negligible THD and crosstalk. Use Value: 90dB crosstalk and 72dB off-isolation prevent audible bleed between channels at 1MHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX385CSE | Same functionality and pinout; rated for 0°C to +70°C commercial temperature range | Suitable for non-industrial environments where extended temperature stability is not required | Select MAX385CSE for cost-sensitive consumer or lab-grade designs operating within 0°C–70°C |
| ADG408BRUZ | 8-channel single-pole single-throw (SPST); higher RON (45Ω typ), no guaranteed RON match or flatness spec | Better suited for general-purpose multiplexing than precision matched-path routing | Choose ADG408BRUZ when channel count >2 is needed and matched RON is not critical |
Compared with MAX385CSE, the MAX385ESE+ offers extended industrial temperature support (−40°C to +85°C) and tighter parametric guarantees; versus ADG408BRUZ, it provides superior channel matching and lower charge injection but fewer channels and fixed DPST topology.
Availability
MAX385ESE+ is available at Aetrix Electronics and suitable for battery-operated systems, precision instrumentation, and test equipment requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for MAX385ESE+ 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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing markets.
The MAX381/MAX383/MAX385 family was engineered specifically for precision, low-voltage analog signal routing in systems demanding rail-to-rail operation, ultra-low leakage, and sub-200ns switching-targeting military radios, medical instrumentation, and automated test equipment.
FAQ
What is the maximum analog signal voltage range supported by the MAX385ESE+?
The MAX385ESE+ supports analog signals from V− to V+, enabling true rail-to-rail operation. With ±5V dual supplies, it handles −5V to +5V; with +5V single supply, it handles 0V to +5V. Absolute maximum ratings allow V+ up to +17V and V− down to −17V, but operational range is bounded by supply voltages. This capability is confirmed in the Electrical Characteristics tables for both dual- and single-supply conditions in the official MAX385 datasheet.
Does the MAX385ESE+ require external protection diodes for overvoltage tolerance?
No, the MAX385ESE+ includes internal protection diodes on all analog pins (COM, NO, NC, IN), as documented in the "Overvoltage Protection" section and Figure 1 of the datasheet. These diodes clamp signals exceeding V+ or V−, provided forward current remains below 30mA continuous or 100mA peak. External diodes are optional and only recommended if absolute maximum ratings risk being exceeded during power sequencing.
Is the MAX385ESE+ pin-compatible with the DG405 analog switch?
Yes, the MAX385ESE+ is explicitly specified as pin-compatible with DG401/DG403/DG405 in the Features section of the datasheet. Pin assignments for COM, NO, IN, V+, V−, and GND align directly, allowing direct replacement without PCB modification. However, note that DG405 is a quad SPST switch, while MAX385ESE+ is dual SPST - functional equivalence applies per-switch pair, not total channel count.
What is the guaranteed on-resistance flatness specification for the MAX385ESE+?
The MAX385ESE+ guarantees on-resistance flatness of ≤4Ω maximum variation over its specified analog signal range (V− to V+), as stated in both the General Description and Electrical Characteristics tables. This flatness is measured as RFLAT(ON) = RON(max) − RON(min) and is validated across temperature (−40°C to +85°C) and supply conditions, ensuring consistent signal gain regardless of input voltage level.
Can the MAX385ESE+ operate from a single +3.3V supply?
Yes, the MAX385ESE+ supports single-supply operation from +2.7V to +16V, including +3.3V. At +3.3V, typical on-resistance rises to 75Ω (max 185Ω), turn-on time is 400ns, and leakage remains <0.2nA at +25°C. These values are fully characterized in the "Electrical Characteristics-Single +3.3V Supply" section, confirming reliable operation in modern low-voltage embedded systems.
MAX385ESE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- -
- Number of Circuits:
- -
- On-State Resistance (Max):
- -
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- -
- -3db Bandwidth:
- -
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- -
- Current - Leakage (IS(off)) (Max):
- -
- Crosstalk:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX385ESE+ FAQ
1.How can I place an order for MAX385ESE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX385ESE+ 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+ reliable?
The price and inventory of MAX385ESE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX385ESE+ is usually 5 days.
3.What payment methods are accepted for MAX385ESE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX385ESE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX385ESE+?
MAX385ESE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX385ESE+ 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+?
For technical support, including MAX385ESE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX385ESE+ requirements.
6.How does Aetrix verify that MAX385ESE+ is sourced from the original manufacturer or authorized distributors?
All MAX385ESE+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX385ESE+?
All MAX385ESE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX385ESE+, 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+ part is unused and in its original packaging.
Return procedure for MAX385ESE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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