My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX382EWN+
- Part No.:
- MAX382EWN+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 18-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX382EWN+.pdf
- Description:
- IC MUX 8:1 100OHM 18SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,040
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX382EWN+ from Maxim Integrated is an 8-channel, single-ended analog multiplexer with latchable digital inputs, designed for precision signal routing in low-voltage systems. It operates from a +2.7V to +16.5V single supply or ±3V to ±8V dual supplies, delivers ≤100Ω on-resistance (max), guarantees ≤4Ω on-resistance matching between channels, and maintains <2.5nA off-leakage at +85°C - enabling reliable channel selection in battery-powered data-acquisition and test equipment.
For engineers reviewing the MAX382EWN+ datasheet, MAX382EWN+ pinout, MAX382EWN+ application, or MAX382EWN+ equivalent, key selection criteria include its latch-controlled 1-of-8 switching architecture, wide supply flexibility, guaranteed on-resistance matching, low charge injection (≤10pC), and ESD robustness (>2000V).
Technical Context
The MAX382EWN+ implements a CMOS transmission-gate switch array controlled by a 3-bit binary address decoder and transparent/latched logic interface. Its internal structure uses parallel N- and P-MOSFETs per channel to achieve rail-to-rail analog signal handling and low distortion across ±4.5V signal ranges under ±5V supplies.
It supports three operational modes - transparent (WR low, RS high), latched (WR strobed high), and reset-all (RS low) - with defined timing parameters including tON(EN) ≤275ns, tOPEN ≤200ns, and charge injection ≤10pC - ensuring deterministic switching behavior in µP-bus interfaced systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | +2.7V to +16.5V single supply or ±3V to ±8V dual supply - enables direct integration into mixed-voltage industrial and portable systems without level-shifting. |
| On-Resistance (RON) | ≤100Ω max at +25°C - ensures minimal voltage drop and gain error in precision sensor or audio signal paths. |
| On-Resistance Matching (∆RON) | ≤4Ω max between channels - critical for ratiometric measurements and multi-channel calibration accuracy. |
| Off-Leakage Current | <2.5nA at +85°C - preserves signal integrity in high-impedance sample-and-hold or battery-monitoring circuits. |
| Charge Injection (VCTE) | ≤10pC max - minimizes settling error and droop in switched-capacitor and ADC front-end applications. |
| ESD Protection | >2000V per Method 3015.7 - provides robust handling during board assembly and field service without external protection. |
| Operating Temperature | –40°C to +85°C - qualified for extended industrial and automotive under-hood environments. |
Pinout & Package
MAX382EWN+ is housed in an 18-pin Wide SO (Small Outline) package with 0.300" body width and standard JEDEC MS-013AC footprint. Pin 1 is marked with a dot; pin numbering follows counterclockwise convention from top-left corner when viewed from component side.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | WR (Write) | Strobe input that latches current A2/A1/A0 address on rising edge - enables µP-bus compatible nonvolatile channel selection without continuous address hold. |
| 2, 17 | A0, A1 | Binary address inputs selecting one of eight analog channels (NO1–NO8) - A2 is not used on MAX382; pin 16 is NC. |
| 3 | EN (Enable) | Active-high enable controlling all switches - allows software-controlled global on/off for power sequencing or fault isolation. |
| 4 | V− | Negative supply rail - tied to GND for single-supply operation; sets lower analog signal limit (e.g., –5V with ±5V supplies). |
| 5–8 | NO1–NO4 | Bidirectional analog inputs - connect to sensors, DAC outputs, or signal sources; share common COM path. |
| 9 | COM | Common analog I/O terminal - serves as output in mux mode or input in demux mode; must be routed with low capacitance for high-speed signals. |
| 10–13 | NO8–NO5 | Bidirectional analog inputs - continuation of 8-channel set; NO5–NO8 occupy pins 10–13 in descending order. |
| 14 | V+ | Positive supply rail - defines upper analog signal limit (e.g., +5V with ±5V supplies); must be decoupled locally. |
| 15 | GND | Analog/digital ground reference - requires low-impedance connection to system ground plane to minimize noise coupling. |
| 16 | A2 / NC | No-connect on MAX382EWN+ - unused in 8-channel configuration; left unconnected per datasheet guidance. |
| 18 | RS (Reset) | Active-low global reset - forces all channels OFF regardless of address or EN state; essential for safe startup and fault recovery. |
Key Features
| Feature | Design Value |
|---|---|
| Latchable digital control | WR and RS strobes eliminate need for sustained address bus drive - reduces µP I/O loading and simplifies firmware state management. |
| Rail-to-rail analog switching | Supports analog signals from V− to V+ - enables full-scale signal routing in single- or dual-supply configurations without clipping. |
| Guaranteed channel matching | ≤4Ω ∆RON across all eight channels - ensures consistent gain/attenuation in multi-channel instrumentation and calibration systems. |
| Low-power operation | <300µW typical supply current - extends battery life in portable medical, handheld test, and remote sensing devices. |
| Pin compatibility | Direct replacement for DG428/DG429, MAX368/MAX369 - allows drop-in upgrade with no PCB changes in legacy designs. |
Applications
| Battery-Operated Systems | Audio Signal Routing |
|---|---|
Use Scenario: Multi-sensor data logging in handheld environmental monitors powered by coin-cell or Li-ion batteries. IC Role / Device Role / Timing Role: 8-channel analog multiplexer selecting thermistor, humidity, pressure, and gas sensor outputs sequentially to a shared ADC input. Use Value: Low 300µW quiescent power and <2.5nA leakage at +85°C preserve battery runtime while maintaining measurement accuracy across temperature extremes. | Use Scenario: Input source selection in professional USB audio interfaces supporting mic, line, and instrument inputs. IC Role / Device Role / Timing Role: Latch-controlled analog switch routing discrete audio channels to a common preamp/ADC stage with minimal crosstalk (<–92dB). Use Value: ≤100Ω on-resistance and ≤10pC charge injection prevent audible distortion and DC offset in high-fidelity signal paths. |
| Low-Voltage Data-Acquisition Systems | Sample-and-Hold Circuits |
Use Scenario: Industrial PLC analog input modules acquiring 4–20mA, thermocouple, and RTD signals across multiple field channels. IC Role / Device Role / Timing Role: Precision 1-of-8 multiplexer feeding isolated signal conditioning and 16-bit SAR ADCs with matched channel resistance. Use Value: ≤4Ω on-resistance matching eliminates inter-channel gain variation, improving absolute accuracy in multi-sensor measurement systems. | Use Scenario: Fast-settling sample-and-hold amplifier front-end in automated test equipment capturing transient waveforms. IC Role / Device Role / Timing Role: Low-charge-injection analog switch isolating hold capacitor from input source during acquisition phase. Use Value: ≤10pC guaranteed charge injection minimizes droop-induced error, enabling sub-LSB accuracy in 12-bit+ sampling systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX382CPN+ | Same functionality and pinout, but rated for 0°C to +70°C only - lacks extended temperature qualification. | Suitable for commercial-grade consumer or lab equipment; not rated for industrial ambient extremes. | Select MAX382CPN+ only if operating environment stays within 0°C–70°C and cost sensitivity outweighs temperature margin. |
| ADG408BRZ | 8-channel CMOS mux with 45Ω typical RON, but no latchable inputs - requires continuous address driving and lacks WR/RS control logic. | Better for FPGA- or microcontroller-driven systems with abundant GPIO; unsuitable for µP-bus constrained designs. | Choose ADG408BRZ when lowest on-resistance is prioritized over latch control and system-level timing simplicity. |
Compared with MAX382CPN+, MAX382EWN+ adds –40°C to +85°C operation and enhanced reliability screening; versus ADG408BRZ, it trades ~55Ω higher RON for integrated latching, reset, and µP-bus timing compliance - making it optimal for resource-constrained embedded controllers.
Availability
MAX382EWN+ is available at Aetrix Electronics and suitable for battery-operated systems, audio signal routing, and low-voltage data-acquisition systems requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for MAX382EWN+ 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 fabless semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and computing markets.
The MAX382EWN+ belongs to Maxim's precision analog multiplexer product line, engineered specifically for low-leakage, low-distortion signal routing in µP-bus interfaced instrumentation and portable measurement systems.
FAQ
What supply voltages does the MAX382EWN+ support?
The MAX382EWN+ supports a +2.7V to +16.5V single supply (with V− tied to GND) or ±3V to ±8V dual supplies. It functions correctly across this full range, enabling use in both battery-powered portable gear and industrial ±5V/±12V systems. The analog signal range tracks the supply rails - e.g., with ±5V supplies, signals from –5V to +5V can be passed without clipping. Operation outside these limits violates Absolute Maximum Ratings and risks permanent damage.
How does the latch function work on the MAX382EWN+?
The MAX382EWN+ uses WR (Write) and RS (Reset) strobes to manage latching. When WR transitions high, the current A1/A0 address is captured and held indefinitely - freeing the address bus for other tasks. RS low forces all channels OFF regardless of address or EN state. This eliminates the need for constant address maintenance, reducing µP I/O overhead and simplifying firmware. Transparent mode occurs when WR is low and RS is high, behaving like a non-latching mux.
Is the MAX382EWN+ pin-compatible with older industry-standard muxes?
Yes, the MAX382EWN+ is explicitly pin-compatible with the DG428, DG429, MAX368, and MAX369 multiplexers. Its 18-pin Wide SO footprint, pin assignments (including WR, EN, RS, A0/A1, COM, NO1–NO8), and electrical interface match those parts - allowing direct replacement in existing designs without PCB modification or layout rework.
What is the maximum allowable leakage current for the MAX382EWN+ at elevated temperature?
The MAX382EWN+ guarantees COM-off leakage current (ICOM(OFF)) of less than ±2.5nA at +85°C, as tested and specified in the datasheet. This value is 100% production-tested at maximum hot operating temperature and correlated at +25°C. At lower temperatures, leakage drops significantly - e.g., below 100pA at +25°C - making it suitable for high-impedance sensor interfaces where leakage-induced errors must be minimized.
Does the MAX382EWN+ require external protection diodes for overvoltage conditions?
No, external protection diodes are not required for normal operation of the MAX382EWN+. Internal clamp diodes protect terminals against overvoltage, and the device meets >2000V ESD rating per Method 3015.7. However, if supply sequencing cannot be guaranteed (e.g., V− applied before V+), external series diodes on V+ and V− pins may be added - though this reduces usable analog signal range by ~1.2V and is not recommended for single-supply use.
MAX382EWN+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- 8:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 100Ohm
- Channel-to-Channel Matching (ΔRon):
- 4Ohm (Max)
- Voltage - Supply, Single (V+):
- 2.7V ~ 16.5V
- Voltage - Supply, Dual (V±):
- ±2.7V ~ 8V
- Switch Time (Ton, Toff) (Max):
- 150ns, 150ns
- -3db Bandwidth:
- -
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 11pF, 40pF
- Current - Leakage (IS(off)) (Max):
- 200pA
- Crosstalk:
- -92dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 18-SOIC
MAX382EWN+ FAQ
1.How can I place an order for MAX382EWN+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX382EWN+ 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 MAX382EWN+ reliable?
The price and inventory of MAX382EWN+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX382EWN+ is usually 5 days.
3.What payment methods are accepted for MAX382EWN+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX382EWN+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX382EWN+?
MAX382EWN+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX382EWN+ 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 MAX382EWN+?
For technical support, including MAX382EWN+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX382EWN+ requirements.
6.How does Aetrix verify that MAX382EWN+ is sourced from the original manufacturer or authorized distributors?
All MAX382EWN+ 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 MAX382EWN+ meets industry standards.
7.What is the process for return or replacement of MAX382EWN+?
All MAX382EWN+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX382EWN+, 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 MAX382EWN+ part is unused and in its original packaging.
Return procedure for MAX382EWN+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX382EWN+ Tags
-
SN74LVC1G3157DBVR
Texas Instruments
-
SN74LVC1G66DBVR
Texas Instruments
-
SN74LVC1G66DCKR
Texas Instruments
-
SN74LVC1G3157DSFR
Texas Instruments
-
1P1G3157QDCKRQ1
Texas Instruments
-
SN74LVC2G66DCUR
Texas Instruments
-
SN74LV4052APWR
Texas Instruments
-
74HC4051D,653
Nexperia USA Inc.
-
SN74LV4051APWR
Texas Instruments
-
CD74HC4052PWR
Texas Instruments
-
CD74HC4051PWR
Texas Instruments
-
TS5A3166DBVR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
