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Analog Devices Inc./Maxim Integrated MAX306EWI+T
- Part No.:
- MAX306EWI+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 28-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX306EWI+T.pdf
- Description:
- IC MUX 16:1 100OHM 28SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:990
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Product details
Overview
MAX306EWI+T from Maxim Integrated is a precision 16-channel single-ended CMOS analog multiplexer with ≤100Ω on-resistance, <5Ω channel-to-channel matching, and <10pC charge injection. It operates from ±4.5V to ±20V or +5V to +30V supplies, supports rail-to-rail signal handling up to ±15V, and is rated for -40°C to +85°C industrial temperature range in 28-pin Wide SO package.
For engineers reviewing the MAX306EWI+T datasheet, MAX306EWI+T pinout, MAX306EWI+T application, or MAX306EWI+T equivalent, this page delivers verified electrical specs, functional pin mapping, real-world use cases in test equipment and military radios, and two validated alternative parts - all grounded in Maxim's official documentation and parametric data.
Technical Context
The MAX306EWI+T implements a monolithic CMOS decoder-driven 1-of-16 switch architecture with TTL/CMOS-compatible digital inputs (A0–A3, EN) and bidirectional analog paths (NO1–NO16, COM). Its silicon-gate process ensures guaranteed flat on-resistance (≤7Ω max variation over ±10V signal range) and low leakage (INO(OFF) < 2.5nA at +85°C).
It features break-before-make switching (tOPEN ≤ 40ns), fast transition time (tTRANS < 400ns over full temp range), and ESD protection >2000V. The device retains plug-in compatibility with industry-standard DG406/DG506A, enabling drop-in replacement without layout changes in existing designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15V (dual supply); enables full rail-to-rail signal routing without clipping in precision instrumentation. |
| On-Resistance (RON) | ≤100Ω at +25°C, ≤125Ω over -40°C to +85°C; ensures minimal voltage drop and gain error in sensor/metering front-ends. |
| On-Resistance Match | <5Ω max between channels; critical for multi-channel data acquisition where channel-to-channel gain consistency is required. |
| Charge Injection | <10pC; reduces settling error in sample-and-hold circuits and high-resolution ADC interfaces. |
| Off-Leakage (INO(OFF)) | <2.5nA at +85°C; preserves accuracy in high-impedance sensor nodes and battery-operated systems. |
| Supply Range | +5V to +30V single supply or ±4.5V to ±20V dual supply; supports flexible power architecture in mixed-signal embedded systems. |
| Switching Speed | tTRANS < 400ns, tON(EN) < 400ns over full temperature range; suitable for medium-speed automated test equipment (ATE) scanning. |
Pinout & Package
MAX306EWI+T is housed in a 28-pin Wide SO (SOIC-W) surface-mount package with standard 0.3-inch body width and gull-wing leads. Pin 1 is marked by a beveled corner or dot; pin count and spacing comply with JEDEC MS-013.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 27 | V+, V− | Positive/negative supply rails; support bipolar operation and define analog signal swing limits (±15V typical). |
| 12 | GND | Digital/analog reference ground; must be low-impedance to minimize crosstalk and offset drift. |
| 14–17 | A3–A0 | 4-bit binary address inputs; select one of 16 NOx inputs to connect to COM under EN = high. |
| 18 | EN | Active-high enable; disables all switches when low, reducing leakage and power consumption. |
| 19–26, 4–11 | NO1–NO8, NO9–NO16 | 16 bidirectional analog input terminals; each connects to COM only when selected and enabled. |
| 28 | COM | Common bidirectional analog terminal; serves as output (multiplexed) or input (demultiplexed) depending on signal flow direction. |
| 2, 3, 13 | N.C. | No internal connection; must remain unconnected per datasheet to avoid parasitic coupling or latch-up risk. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from V− to V+ (e.g., ±15V), eliminating level-shifting circuitry in wide-dynamic-range systems. |
| Guaranteed on-resistance flatness | ≤7Ω max variation across ±10V signal range ensures consistent gain and linearity in precision measurement paths. |
| TTL/CMOS logic compatibility | Accepts 0.8V/2.4V logic thresholds directly-no level translators needed when interfacing with microcontrollers or FPGAs. |
| Plug-in upgrade for DG406/DG506A | Pin- and function-compatible replacement with improved RON match, lower leakage, and higher ESD rating (>2000V). |
| Low power consumption | <1.25mW typical at +25°C; extends battery life in portable test gear and remote sensor concentrators. |
Applications
| Test Equipment | Military Radios |
|---|---|
|
Use Scenario: Automated test systems performing sequential voltage/current measurements across 16 sensor inputs. IC Role / Device Role / Timing Role: Analog multiplexer routing sensor outputs to a shared ADC input with minimal channel-to-channel gain error. Use Value: <5Ω RON matching ensures measurement repeatability across all 16 channels without per-channel calibration. |
Use Scenario: RF front-end signal routing in ruggedized HF/VHF transceivers requiring stable performance across -40°C to +85°C. IC Role / Device Role / Timing Role: Selecting between multiple antenna feeds or filter banks under microcontroller control in real time. Use Value: ESD protection >2000V and guaranteed leakage <2.5nA at +85°C maintain reliability in harsh electromagnetic environments. |
| Sample-and-Hold Circuits | Battery-Operated Systems |
|
Use Scenario: Precision sampling of low-level thermocouple or strain gauge signals before digitization. IC Role / Device Role / Timing Role: Channel selector feeding a hold capacitor; low charge injection (<10pC) minimizes droop-induced error. Use Value: Sub-10pC charge injection enables sub-16-bit accuracy in high-resolution data loggers without post-acquisition correction. |
Use Scenario: Multi-sensor monitoring in handheld diagnostic tools powered by Li-ion batteries. IC Role / Device Role / Timing Role: Low-power analog switch enabling selective activation of sensors to extend operating time. Use Value: <1.25mW power dissipation and <2.5nA off-leakage at +85°C preserve battery capacity during extended standby intervals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX306CWI+ | Same pinout and function, but rated for 0°C to +70°C commercial temperature range. | Suitable for non-industrial environments (e.g., lab bench instruments, consumer audio routing). | Select MAX306CWI+ only if ambient operating temperature stays within 0°C–70°C; otherwise MAX306EWI+T is required. |
| ADG406BRZ | 16-channel CMOS mux with 75Ω RON (typ), 25nA INO(OFF) at +85°C, and no guaranteed RON matching spec. | Lacks guaranteed <5Ω channel match and <10pC charge injection; less suited for high-accuracy metrology. | Choose ADG406BRZ only when cost sensitivity outweighs precision requirements; MAX306EWI+T delivers superior matching and leakage specs. |
Compared with MAX306CWI+, MAX306EWI+T adds extended temperature capability and identical precision specs; compared with ADG406BRZ, it provides tighter RON matching, lower leakage, and guaranteed charge injection-making it the preferred choice for industrial and military-grade signal routing where measurement integrity is critical.
Availability
MAX306EWI+T is available at Aetrix Electronics and suitable for test equipment, military radios, sample-and-hold circuits, and battery-operated systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX306EWI+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, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.
The MAX306 series targets precision analog signal routing in environments requiring guaranteed matching, low leakage, and robust ESD tolerance-specifically engineered for test instrumentation, avionics, and ruggedized communications hardware.
FAQ
What is the maximum analog signal voltage range supported by MAX306EWI+T?
The MAX306EWI+T supports an analog signal range of ±15V when operated from ±15V supplies, and 0V to +12V with a +12V single supply. Absolute maximum ratings allow VNO/VCOM to swing from (V− − 2V) to (V+ + 2V), but full specified performance-including on-resistance flatness and leakage-is guaranteed only within the ±15V dual-supply or 0V–+12V single-supply ranges documented in the Electrical Characteristics tables. Exceeding these ranges may degrade precision or reliability.
Does MAX306EWI+T require external pull-up resistors on its address or enable pins?
No, MAX306EWI+T does not require external pull-up resistors. Its CMOS digital inputs (A0–A3, EN) have low input current (±1.0µA max) and are fully compatible with standard TTL/CMOS logic levels (VAL ≤ 0.8V, VAH ≥ 2.4V). Internal design ensures proper logic recognition without external biasing, simplifying interface to microcontrollers and FPGAs while reducing board area and BOM count.
Can MAX306EWI+T be used in a single-supply configuration with V− tied to GND?
Yes, MAX306EWI+T supports single-supply operation with V− connected to GND and V+ set between +5V and +30V. In this mode, the analog signal range is 0V to V+, e.g., 0V to +12V at V+ = +12V. The device maintains TTL/CMOS compatibility, low leakage (<2.5nA at +85°C), and <100Ω on-resistance-making it ideal for portable and industrial systems where dual supplies are impractical.
Is MAX306EWI+T pin-compatible with the DG406 analog multiplexer?
Yes, MAX306EWI+T is a direct pin-compatible and function-compatible plug-in upgrade for the DG406. It shares identical 28-pin Wide SO packaging, pin assignments (including V+, V−, COM, NO1–NO16, A0–A3, EN, GND), and truth table behavior. However, MAX306EWI+T improves on-resistance matching (<5Ω vs. unspecified for DG406), lowers leakage, and raises ESD rating (>2000V vs. ~2kV), delivering enhanced precision without PCB redesign.
What is the thermal derating specification for MAX306EWI+T in Wide SO package?
For the MAX306EWI+T in 28-pin Wide SO package, continuous power dissipation is rated at 1000mW at TA = +70°C, with a derating factor of 12.50mW/°C above +70°C. This means maximum allowable power drops linearly-for example, at +85°C ambient, the limit is 1000mW − (15°C × 12.50mW/°C) = 812.5mW. This derating ensures safe junction temperature operation under sustained load conditions in industrial enclosures.
MAX306EWI+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-SOIC
MAX306EWI+T FAQ
1.How can I place an order for MAX306EWI+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX306EWI+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 MAX306EWI+T reliable?
The price and inventory of MAX306EWI+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX306EWI+T is usually 5 days.
3.What payment methods are accepted for MAX306EWI+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX306EWI+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX306EWI+T?
MAX306EWI+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX306EWI+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 MAX306EWI+T?
For technical support, including MAX306EWI+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX306EWI+T requirements.
6.How does Aetrix verify that MAX306EWI+T is sourced from the original manufacturer or authorized distributors?
All MAX306EWI+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 MAX306EWI+T meets industry standards.
7.What is the process for return or replacement of MAX306EWI+T?
All MAX306EWI+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX306EWI+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 MAX306EWI+T part is unused and in its original packaging.
Return procedure for MAX306EWI+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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