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Analog Devices Inc./Maxim Integrated MAX306EWI+
- Part No.:
- MAX306EWI+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 28-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX306EWI+.pdf
- Description:
- IC MUX 16:1 100OHM 28SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:431
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Product details
Overview
MAX306EWI+ from Maxim Integrated is a precision 1-of-16 single-ended CMOS analog multiplexer with guaranteed on-resistance <100Ω, on-resistance match <5Ω between channels, and charge injection <10pC. It operates from ±4.5V to ±20V bipolar or +5V to +30V single supply, 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. It serves as a plug-in upgrade for DG406/DG506A in precision data acquisition systems.
For engineers reviewing the MAX306EWI+ datasheet, MAX306EWI+ pinout, MAX306EWI+ application, or MAX306EWI+ equivalent, key selection criteria include its guaranteed on-resistance flatness (≤7Ω), low leakage (<2.5nA NO off-leakage at +85°C), fast transition time (<250ns), ESD protection (>2000V), and compatibility with TTL/CMOS logic inputs across extended supply ranges.
Technical Context
The MAX306EWI+ implements a monolithic CMOS switch architecture with integrated address decoding (A0–A3) and enable control (EN), supporting 16 bidirectional analog input channels (NO1–NO16) routed to a common bidirectional output (COM). Its silicon-gate process ensures matched channel characteristics and minimal charge injection during switching.
It features rail-to-rail analog signal handling over ±15V (dual supply) or 0–12V (single supply), with guaranteed performance across -40°C to +85°C. Input logic thresholds (VAL ≤ 0.8V, VAH ≥ 2.4V) maintain TTL/CMOS compatibility while minimizing input loading via CMOS inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15V (dual supply); enables full-range signal routing without clipping in precision instrumentation. |
| On-Resistance (RON) | <100Ω max at +25°C; ensures minimal voltage drop and gain error in sensor/ADC front-ends. |
| On-Resistance Match | <5Ω max between channels; critical for multi-channel calibration and ratiometric measurement accuracy. |
| Charge Injection | <10pC; reduces sampling error and settling time in sample-and-hold and switched-capacitor circuits. |
| NO Off-Leakage Current | <2.5nA at +85°C; preserves signal integrity in high-impedance sensor interfaces and battery-powered systems. |
| Transition Time | <250ns; supports high-speed multiplexing in automated test equipment and real-time control loops. |
| ESD Protection | >2000V HBM; enhances robustness during board assembly and field operation without external protection. |
Pinout & Package
MAX306EWI+ is housed in a 28-pin wide SOIC (SO) package with standard 0.3-inch body width and gull-wing leads. Pin 1 is marked by a beveled corner or dot; pin numbering follows standard counter-clockwise convention when viewed from top.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, V+ | Positive supply voltage input | Accepts +5V to +30V (single) or up to +20V (bipolar); must be powered before V− for safe sequencing. |
| 2,3,13, N.C. | No internal connection | Unbonded pins; must remain unconnected-no routing or grounding required. |
| 4–11, NO16–NO9 | Analog input channels (bidirectional) | 16 independent analog paths; each supports rail-to-rail signals within supply rails. |
| 12, GND | Ground reference | Logic and substrate reference; connect to system ground plane with low-inductance path. |
| 14–17, A3–A0 | Binary address inputs | Select one of 16 channels (0000–1111); CMOS-compatible with TTL/CMOS logic levels. |
| 18, EN | Enable input | Active-high; disables all switches when low, reducing leakage and power consumption. |
| 19–26, NO1–NO8 | Analog input channels (bidirectional) | Continuation of 16-channel set; identical electrical specs and routing capability as NO9–NO16. |
| 27, V− | Negative supply voltage input | Accepts −4.5V to −20V (bipolar); connect to GND for single-supply operation. |
| 28, COM | Common analog output | Bidirectional node; connects selected NOx channel; handles full analog signal range. |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed on-resistance flatness | ≤7Ω max variation across full analog signal range (±10V), ensuring consistent gain and linearity. |
| Rail-to-rail signal handling | Supports analog signals from V− to V+, enabling direct interface with op-amps and ADCs without level-shifting. |
| Plug-in upgrade for DG406/DG506A | Pins, timing, and logic compatible-no PCB or firmware changes required for legacy system upgrades. |
| Low power consumption | <1.25mW typical at +25°C, reducing thermal load and extending battery life in portable instruments. |
| TTL/CMOS logic compatibility | Input thresholds (VAL ≤ 0.8V, VAH ≥ 2.4V) allow direct drive from microcontrollers and FPGAs without buffers. |
Applications
| Test Equipment | Sample-and-Hold Circuits |
|---|---|
|
Use Scenario: Automated test systems requiring sequential routing of multiple sensor or DUT signals to a shared digitizer or analyzer. IC Role / Device Role / Timing Role: 16-channel analog switch enabling high-fidelity signal selection with minimal crosstalk (-92dB) and fast settling (<250ns). Use Value: Eliminates mechanical relays; improves reliability, speed, and channel density while maintaining measurement accuracy. |
Use Scenario: Precision data acquisition where multiple analog inputs are sampled sequentially into a capacitor-based hold circuit. IC Role / Device Role / Timing Role: Low-charge-injection (<10pC) analog mux ensures minimal droop and accurate voltage capture during hold phase. Use Value: Reduces need for correction algorithms or larger hold capacitors, improving effective resolution and throughput. |
| Military Radios | Battery-Operated Systems |
|
Use Scenario: RF front-end signal routing in ruggedized communication platforms requiring wide temperature operation and ESD resilience. IC Role / Device Role / Timing Role: Industrial-grade (-40°C to +85°C) analog switch with >2000V HBM ESD protection and low leakage (<2.5nA at +85°C). Use Value: Ensures uninterrupted signal path integrity under harsh environmental stress and electrostatic events. |
Use Scenario: Portable medical monitors or handheld meters needing ultra-low standby current and long battery runtime. IC Role / Device Role / Timing Role: Sub-µA supply current (75µA max over temp) and enable-controlled shutdown reduce quiescent power to <1.25mW. Use Value: Extends operational life per battery charge without compromising channel count or signal fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG408BRZ | 8-channel, not 16-channel; higher RON (100Ω typ vs. 60Ω typ for MAX306EWI+); no guaranteed on-resistance match spec. | Suitable only where channel count reduction is acceptable and tighter matching is not required. | Choose ADG408BRZ if lower channel density and simplified control (3 address bits) suffice and cost is prioritized. |
| TMUX1308PWR | 8-channel, single-supply only (1.08–5.5V); lacks bipolar support and rail-to-rail analog range beyond supply rails. | Restricted to low-voltage, consumer-grade systems-not suitable for ±15V industrial or military signal routing. | Choose TMUX1308PWR only for battery-powered 3.3V/5V designs where high-voltage analog handling is unnecessary. |
Compared with ADG408BRZ and TMUX1308PWR, the MAX306EWI+ uniquely delivers 16-channel single-ended switching with guaranteed matching, bipolar supply flexibility, and full rail-to-rail analog range-making it irreplaceable in high-accuracy, wide-signal industrial and defense applications.
Availability
MAX306EWI+ is available at Aetrix Electronics and suitable for test equipment, sample-and-hold circuits, military radios, battery-operated systems, and guidance and control systems requiring stable component supply across extended temperature and voltage ranges.
Supply support for MAX306EWI+ 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 MAX306/MAX307 family was designed for precision analog signal routing in demanding environments-emphasizing low distortion, tight parameter matching, and robust operation across wide supply and temperature ranges.
FAQ
What supply voltage ranges does the MAX306EWI+ support?
The MAX306EWI+ supports dual supplies from ±4.5V to ±20V and single supplies from +5V to +30V. When using a single supply, V− must be connected to GND. The device maintains full rail-to-rail analog signal handling across these ranges, with specified performance up to ±15V (dual) or 0–12V (single). Absolute maximum ratings limit V+ to +44V relative to V−.
Is the MAX306EWI+ pin-compatible with the DG406 or DG506A?
Yes-the MAX306EWI+ is explicitly designed as a plug-in upgrade for the industry-standard DG406 and DG506A. It shares identical pinout, logic interface (TTL/CMOS-compatible), timing behavior, and functional operation. No PCB layout or firmware modifications are needed when replacing those legacy parts with MAX306EWI+ in existing designs.
What is the maximum operating temperature range for the MAX306EWI+?
The MAX306EWI+ is rated for operation from -40°C to +85°C, qualifying it for industrial and extended-temperature applications. This rating is confirmed in the Ordering Information table and applies specifically to the "E" grade (e.g., MAX306EWI+), distinguishing it from the commercial-grade "C" version (0°C to +70°C) and military-grade "M" version (-55°C to +125°C).
How does the MAX306EWI+ minimize signal distortion in precision measurement?
The MAX306EWI+ minimizes distortion through three key specifications: guaranteed on-resistance matching (<5Ω), flat on-resistance (≤7Ω variation over signal range), and ultra-low charge injection (<10pC). These ensure consistent gain across channels, linear response across input voltage, and minimal voltage step errors during switching-critical for high-resolution ADC interfacing and calibration-critical systems.
Can the MAX306EWI+ be used in battery-powered applications?
Yes-the MAX306EWI+ draws less than 75µA total supply current over temperature and consumes <1.25mW typical power. Its enable (EN) pin allows full shutdown to further reduce leakage, and its low off-leakage (<2.5nA at +85°C) preserves signal integrity in high-impedance battery-powered sensor nodes. Combined with single-supply operation down to +5V, it is well-suited for portable instrumentation.
MAX306EWI+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- 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+ FAQ
1.How can I place an order for MAX306EWI+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX306EWI+ 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+ reliable?
The price and inventory of MAX306EWI+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX306EWI+ is usually 5 days.
3.What payment methods are accepted for MAX306EWI+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX306EWI+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX306EWI+?
MAX306EWI+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX306EWI+ 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+?
For technical support, including MAX306EWI+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX306EWI+ requirements.
6.How does Aetrix verify that MAX306EWI+ is sourced from the original manufacturer or authorized distributors?
All MAX306EWI+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX306EWI+?
All MAX306EWI+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX306EWI+, 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+ part is unused and in its original packaging.
Return procedure for MAX306EWI+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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