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Analog Devices Inc./Maxim Integrated MAX306CWI
- Part No.:
- MAX306CWI
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 28-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX306CWI.pdf
- Description:
- IC MUX 16:1 100OHM 28SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,708
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Product details
Overview
MAX306CWI from Maxim Integrated is a precision 1-of-16 single-ended CMOS analog multiplexer with ≤100Ω on-resistance, <5Ω channel-to-channel matching, and <10pC charge injection. It operates from +5V to +30V single supply or ±4.5V to ±20V dual supplies, delivering rail-to-rail signal handling for test equipment, military radios, and battery-operated systems.
For engineers reviewing the MAX306CWI datasheet, MAX306CWI pinout, MAX306CWI application, or MAX306CWI equivalent, key selection criteria include guaranteed on-resistance flatness (≤7Ω), leakage performance (<2.5nA NO off-leakage at +85°C), TTL/CMOS-compatible logic inputs, and wide SO-28 package compatibility with industrial temperature range (0°C to +70°C).
Technical Context
The MAX306CWI implements a monolithic CMOS decoder-driven 16-channel switch architecture with integrated level-shifting circuitry enabling direct TTL/CMOS logic interfacing across its full supply range. Its silicon-gate process ensures low charge injection (<10pC) and ESD robustness (>2000V), critical for sample-and-hold and precision measurement circuits.
All 16 normally open (NO) inputs are bidirectional and support rail-to-rail analog signals up to ±15V (dual supply) or 0–12V (single +12V supply). The enable (EN) input provides global switching control, while A0–A3 address lines select one of 16 channels to connect to the common (COM) terminal with break-before-make timing (10–40ns).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15V (dual supply) or 0–12V (single +12V supply): supports full-rail signal routing without clipping |
| On-Resistance (RON) | ≤100Ω max at +25°C, ≤125Ω over full temp range: minimizes voltage drop and gain error in precision signal paths |
| On-Resistance Matching | <5Ω max between channels: enables high-accuracy differential measurements and channel calibration |
| Charge Injection | <10pC: reduces settling error in sample-and-hold and ADC front-end applications |
| NO Off-Leakage Current | <2.5nA at +85°C: preserves signal integrity in high-impedance sensor interfaces |
| Transition Time | <250ns max: supports fast multiplexing in automated test equipment (ATE) and real-time control |
| ESD Protection | >2000V HBM: enhances reliability during board handling and system integration |
Pinout & Package
MAX306CWI is housed in a 28-pin Wide SO (SOIC-W) package, RoHS-compliant, with 1.27mm pitch and standard JEDEC MS-013 outline. Pin 12 is GND; pins 1 and 27 are V+ and V− supply rails; pin 28 is COM (common output); pins 4–11 and 19–26 are the 16 bidirectional analog inputs (NO1–NO16); pins 14–17 are address lines A3–A0; pin 18 is EN (enable); pins 2, 3, and 13 are no-connect.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | V+ | Positive supply rail: accepts +5V to +30V (single) or up to +44V relative to V− (dual) |
| 2, 3, 13 | N.C. | No internal connection: must be left unconnected or tied to GND per layout best practice |
| 4–11 | NO16–NO9 | Bidirectional analog inputs: routed to COM when selected; support rail-to-rail signal swing |
| 12 | GND | Ground reference: required for logic interface and supply decoupling |
| 14–17 | A3–A0 | Binary address inputs: select one of 16 channels (A3 MSB, A0 LSB) with TTL/CMOS thresholds |
| 18 | EN | Enable input: high = active; low = all switches open (high-Z state) |
| 19–26 | NO1–NO8 | Bidirectional analog inputs: functionally identical to NO9–NO16; total 16 independent channels |
| 27 | V− | Negative supply rail: accepts −30V to 0V (single) or −20V to −4.5V (dual) |
| 28 | COM | Common output terminal: bidirectional node shared by all 16 channels |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog inputs from V− to V+ without distortion-enables direct interfacing with op-amps and sensors operating at supply rails |
| Guaranteed on-resistance flatness | ≤7Ω max variation across full signal range: maintains consistent gain and linearity in data acquisition systems |
| Plug-in upgrade for DG406/DG506A | Pin- and function-compatible replacement with improved RON matching, lower leakage, and higher ESD rating |
| Low power consumption | <1.25mW typical at +25°C: extends battery life in portable instrumentation and handheld test gear |
| TTL/CMOS logic compatibility | VAL ≤ 0.8V / VAH ≥ 2.4V thresholds: eliminates need for level shifters when driven by microcontrollers or FPGAs |
Applications
| Test Equipment | Military Radios |
|---|---|
Use Scenario: Automated test systems route multiple sensor or DUT signals to a single high-precision ADC or oscilloscope channel. IC Role / Device Role / Timing Role: 16-channel analog multiplexer providing selectable signal path with minimal crosstalk (−92dB) and fast switching (tTRANS < 250ns). Use Value: Enables high-density signal conditioning without external relays or discrete switches, reducing PCB area and thermal drift. |
Use Scenario: Secure communication platforms require reliable RF front-end signal routing under harsh environmental conditions. IC Role / Device Role / Timing Role: Precision analog switch managing antenna diversity, filter bank selection, or IF signal path configuration. Use Value: Guaranteed −55°C to +125°C operation (via M-grade variants) and >2000V ESD withstand ensure field reliability in mobile radio units. |
| Battery-Operated Systems | Heads-Up Displays (HUD) |
Use Scenario: Portable medical monitors or handheld analyzers multiplex biopotential electrodes or sensor outputs to conserve power and space. IC Role / Device Role / Timing Role: Low-leakage (INO(OFF) < 2.5nA at +85°C), low-power (<1.25mW) analog mux enabling long runtime and stable DC accuracy. Use Value: Eliminates need for mechanical switches or high-quiescent-current alternatives, preserving battery capacity over extended deployments. |
Use Scenario: Automotive or aviation HUDs condition and route video, brightness control, or sensor feedback signals within tight thermal envelopes. IC Role / Device Role / Timing Role: High-fidelity analog switch supporting rail-to-rail video-level signals with minimal charge injection (<10pC) to prevent image ghosting. Use Value: Maintains display fidelity and timing integrity across temperature extremes without recalibration or signal degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG406BRZ | 16-channel, ±15V analog range; RON = 75Ω typ, but no guaranteed matching spec; 1000V ESD rating | Lacks guaranteed on-resistance matching (<5Ω) and flatness (≤7Ω); suitable for non-critical signal routing | Select ADG406BRZ only when absolute channel matching is not required and lower ESD immunity is acceptable |
| DG406DN | Legacy 16-channel mux; RON = 120Ω max, ΔRON = 10Ω max, no charge injection spec; requires external level shifting for TTL logic | Higher on-resistance increases gain error; lacks rail-to-rail capability and modern ESD protection | Use DG406DN only for legacy redesigns where footprint compatibility is mandatory and performance trade-offs are acceptable |
Compared with ADG406BRZ and DG406DN, the MAX306CWI delivers superior channel matching, lower charge injection, and plug-in compatibility with industry-standard footprints-making it optimal for precision measurement, military-grade signal routing, and battery-sensitive designs where parameter guarantees matter.
Availability
MAX306CWI is available at Aetrix Electronics and suitable for test equipment, military radios, and battery-operated systems requiring stable component supply, long-term lifecycle support, and guaranteed parametric performance across commercial temperature range (0°C to +70°C).
Supply support for MAX306CWI 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, automotive, and communications markets.
The MAX306CWI belongs to Maxim's precision analog multiplexer product line, engineered for applications demanding low distortion, guaranteed matching, and robust operation in mission-critical signal routing environments.
FAQ
What is the maximum analog signal voltage range supported by the MAX306CWI?
The MAX306CWI supports an analog signal range of ±15V when operated from dual ±15V supplies, or 0V to +12V when operated from a +12V single supply. With ±20V supplies, the usable analog range extends to ±20V, limited only by the absolute maximum ratings (V+ to V− ≤ +44V). This rail-to-rail capability ensures accurate signal transmission without clipping in precision instrumentation and military radio front-ends using the MAX306CWI.
Does the MAX306CWI require external level shifters when driven by 3.3V microcontrollers?
No, the MAX306CWI does not require external level shifters. Its digital inputs (A0–A3 and EN) are fully TTL/CMOS-compatible, with logic-low threshold ≤0.8V and logic-high threshold ≥2.4V-ensuring reliable operation directly from 3.3V or 5V microcontrollers. This feature simplifies interface design and reduces bill-of-materials cost in systems incorporating the MAX306CWI.
How does the MAX306CWI compare to the DG406 in terms of on-resistance matching and leakage?
The MAX306CWI improves significantly over the DG406: it guarantees on-resistance matching of <5Ω (vs. DG406's typical 10Ω, unspecified max) and NO off-leakage of <2.5nA at +85°C (vs. DG406's typical 10nA). These enhancements make the MAX306CWI a true plug-in upgrade for precision applications where channel consistency and low drift are critical-directly benefiting systems relying on the MAX306CWI for calibrated signal routing.
Is the MAX306CWI pin-compatible with other package variants like MAX306CPI or MAX306EWI?
Yes, the MAX306CWI is pin-compatible with all 28-pin MAX306 variants-including MAX306CPI (PDIP), MAX306EWI (-40°C to +85°C Wide SO), and MAX306MJI (CERDIP)-as they share identical pinout, function mapping, and electrical behavior. Only temperature grade and package type differ; PCB layouts designed for MAX306CWI can accommodate these variants without modification, supporting flexible qualification and obsolescence mitigation strategies using the MAX306CWI.
What is the significance of the "C" in MAX306CWI's part number?
The "C" in MAX306CWI denotes the commercial temperature grade (0°C to +70°C), distinguishing it from "E" (−40°C to +85°C) and "M" (−55°C to +125°C) variants. All "C"-grade parts-including MAX306CWI-share identical electrical specifications, pinout, and functionality with their extended-temperature counterparts, differing only in tested operating range and screening. This allows cost-optimized deployment of the MAX306CWI in non-military, non-automotive applications where ambient conditions remain within commercial limits.
MAX306CWI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- 16:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 100Ohm
- Channel-to-Channel Matching (ΔRon):
- 1.5Ohm
- Voltage - Supply, Single (V+):
- 5V ~ 30V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 200ns, 150ns
- -3db Bandwidth:
- -
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 8pF, 130pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -92dB @ 100kHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-SOIC
MAX306CWI FAQ
1.How can I place an order for MAX306CWI through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX306CWI 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 MAX306CWI reliable?
The price and inventory of MAX306CWI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX306CWI is usually 5 days.
3.What payment methods are accepted for MAX306CWI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX306CWI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX306CWI?
MAX306CWI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX306CWI 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 MAX306CWI?
For technical support, including MAX306CWI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX306CWI requirements.
6.How does Aetrix verify that MAX306CWI is sourced from the original manufacturer or authorized distributors?
All MAX306CWI 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 MAX306CWI meets industry standards.
7.What is the process for return or replacement of MAX306CWI?
All MAX306CWI units undergo pre-shipment inspection (PSI). If there is an issue with MAX306CWI, 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 MAX306CWI part is unused and in its original packaging.
Return procedure for MAX306CWI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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