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Analog Devices Inc./Maxim Integrated MAX306EQI+TG11
- Part No.:
- MAX306EQI+TG11
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- -
- Datasheet:
-
MAX306EQI+TG11.pdf
- Description:
- INTEGRATED CIRCUIT
- Quantity:
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Product details
Overview
MAX306EQI+TG11 from Maxim Integrated is a precision 16-channel single-ended CMOS analog multiplexer with ≤100Ω on-resistance, <5Ω channel-to-channel on-resistance matching, and <10pC charge injection. It operates from ±4.5V to ±20V bipolar or +5V to +30V single supply and is used in high-accuracy sample-and-hold circuits and test equipment requiring rail-to-rail signal handling and low leakage.
For engineers reviewing the MAX306EQI+TG11 datasheet, MAX306EQI+TG11 pinout, MAX306EQI+TG11 application, or MAX306EQI+TG11 equivalent, key selection criteria include guaranteed on-resistance flatness (≤7Ω), INO(OFF) leakage <2.5nA at +85°C, ESD protection >2000V, and plug-in compatibility with DG406/DG506A legacy designs.
Technical Context
The MAX306EQI+TG11 implements a monolithic CMOS decoder-driven 1-of-16 switch array with TTL/CMOS-compatible digital inputs and bidirectional analog signal paths. Its silicon-gate architecture enables rail-to-rail analog voltage handling (±15V dual supply or 0–12V single supply) while maintaining low power consumption (<1.25mW) and fast switching (tTRANS < 250ns).
It features integrated electrostatic discharge protection (>2000V HBM), guaranteed break-before-make timing (tOPEN ≤ 40ns), and tightly controlled dynamic parameters including off-isolation (−69dB) and crosstalk (−92dB) at 100kHz - critical for precision instrumentation and military radio signal routing where channel integrity is non-negotiable.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15V (dual supply) or 0–12V (single supply): supports full-rail signal acquisition without clipping. |
| On-Resistance (RON) | ≤100Ω max at +25°C, ≤125Ω over full temperature range: ensures minimal gain error and voltage drop in sensor/ADC front-ends. |
| On-Resistance Matching | <5Ω max between channels: enables precise ratiometric measurements across multiple sensor inputs. |
| Charge Injection | <10pC: reduces sampling error in high-impedance sample-and-hold and data acquisition systems. |
| NO Off-Leakage (INO(OFF)) | <2.5nA at +85°C: preserves signal integrity in battery-operated and high-impedance applications. |
| ESD Protection | >2000V HBM: eliminates need for external protection diodes in ruggedized industrial/military designs. |
| Supply Voltage Range | +5V to +30V (single) or ±4.5V to ±20V (bipolar): allows flexible integration into legacy and new power architectures. |
| Transition Time (tTRANS) | <250ns max: supports multiplexing of signals up to ~1MHz without significant settling distortion. |
Pinout & Package
MAX306EQI+TG11 is housed in a 28-pin PLCC (Plastic Leaded Chip Carrier) package with gull-wing leads, RoHS-compliant, rated for −40°C to +85°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 27 | V+, V− | Positive and negative supply rails: support bipolar or single-supply operation; V− tied to GND for single-supply use. |
| 2, 3, 13 | N.C. | No internal connection: must remain unconnected per datasheet to avoid parasitic coupling. |
| 4–11, 19–26 | NO16–NO9, NO1–NO8 | 16 bidirectional analog inputs: selectable via A0–A3 address lines; all share same RON and leakage specs. |
| 12 | GND | Logic and analog reference ground: separate from supply returns but must be low-impedance for noise control. |
| 14–17 | A3–A0 | 4-bit binary address inputs: TTL/CMOS-compatible; define which NOx connects to COM when EN = high. |
| 18 | EN | Active-high enable: disables all switches (high-Z state) when low; critical for power sequencing and system isolation. |
| 28 | COM | Common bidirectional analog terminal: output for mux mode, input for demux mode; handles full signal range. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog inputs from V− to V+ without attenuation or distortion - essential for ±15V op-amp interfaces. |
| Guaranteed on-resistance flatness | ≤7Ω variation across full analog signal range (±10V): maintains linearity in precision measurement paths. |
| Plug-in upgrade for DG406/DG506A | Pin- and function-compatible replacement: enables drop-in reliability and performance upgrade without PCB redesign. |
| Low power consumption | <1.25mW typical: extends battery life in portable test gear and remote sensing nodes. |
| TTL/CMOS logic compatibility | Input thresholds (VAL ≤ 0.8V, VAH ≥ 2.4V) interface directly with microcontrollers and FPGAs without level-shifting. |
| Break-before-make switching | tOPEN ≤ 40ns: prevents momentary shorting between channels during address transitions - vital for fault-tolerant systems. |
Applications
| Sample-and-Hold Circuits | Test Equipment |
|---|---|
|
Use Scenario: Multiplexing multiple sensor outputs into a single high-resolution ADC with minimal hold-step error. IC Role / Device Role / Timing Role: Precision analog switch selecting one of 16 transducer signals to feed a sample capacitor; low charge injection (<10pC) minimizes droop. Use Value: Enables 16-channel data loggers with <0.01% gain error and sub-16-bit noise floor due to matched RON and low leakage. |
Use Scenario: Automated test systems routing calibration references and DUT signals through shared measurement hardware. IC Role / Device Role / Timing Role: High-isolation (−69dB off-isolation) analog mux isolating stimulus sources from sensitive receivers during switching. Use Value: Eliminates cross-coupling artifacts in 100kHz–1MHz impedance analyzers and parametric testers. |
| Military Radios | Battery-Operated Systems |
|
Use Scenario: RF front-end signal routing in secure comms platforms requiring wide temperature operation and ESD robustness. IC Role / Device Role / Timing Role: Channel selector for antenna diversity or band-switching under −40°C to +85°C environmental stress. Use Value: Guaranteed performance across military temp range with >2000V HBM protection avoids field failures in harsh deployment. |
Use Scenario: Portable medical monitors or handheld multimeters multiplexing biopotential, temperature, and pressure sensors. IC Role / Device Role / Timing Role: Low-power (≤1.25mW), low-leakage (<2.5nA) analog switch enabling >100-hour battery life in always-on monitoring. Use Value: Sub-nA leakage preserves microvolt-level bio-signal fidelity; single +5V operation simplifies power architecture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX306EUI | TSSOP-28 package (4.4mm × 6.5mm); 0.65mm pitch; lower thermal resistance than PLCC. | Better suited for space-constrained PCBs; identical electrical specs and temperature rating (−40°C to +85°C). | Select MAX306EUI for high-density layouts; MAX306EQI+TG11 preferred for mechanical robustness and reworkability. |
| DG406DN | Higher on-resistance (120Ω typ), no guaranteed RON matching, 1000V ESD rating, not specified for >+70°C. | Limited to commercial-temp, lower-precision applications; lacks rail-to-rail capability and charge injection spec. | Use DG406DN only in cost-sensitive, non-military, room-temperature designs where performance margins allow. |
Compared with MAX306EUI, MAX306EQI+TG11 offers superior mechanical stability and thermal cycling endurance in PLCC; compared with DG406DN, it delivers guaranteed precision, extended temperature range, and enhanced ESD immunity - making it the sole choice for mission-critical analog signal routing.
Availability
MAX306EQI+TG11 is available at Aetrix Electronics and suitable for sample-and-hold circuits, test equipment, and military radios requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for MAX306EQI+TG11 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 automotive markets.
The MAX306 series belongs to Maxim's precision analog multiplexer product line, engineered for applications demanding low on-resistance mismatch, ultra-low charge injection, and robust operation across extended temperature ranges.
FAQ
What is the maximum analog signal voltage range supported by the MAX306EQI+TG11?
The MAX306EQI+TG11 supports an analog signal range of ±15V when operated from dual supplies (±4.5V to ±20V), or 0V to +12V with a single +5V to +30V supply. This rail-to-rail capability ensures full utilization of ADC input ranges and compatibility with standard op-amp output stages. The device maintains specified on-resistance and leakage performance across this entire range.
Is the MAX306EQI+TG11 pin-compatible with the industry-standard DG406?
Yes, the MAX306EQI+TG11 is a direct plug-in upgrade for the DG406, sharing identical pinout, logic interface levels, and functional behavior. It improves upon the DG406 with lower on-resistance (≤100Ω vs. 120Ω typ), tighter RON matching (<5Ω vs. unspecified), and enhanced ESD protection (>2000V vs. 1000V). No PCB changes are required for migration.
What is the guaranteed on-resistance matching specification for the MAX306EQI+TG11 over temperature?
The MAX306EQI+TG11 guarantees on-resistance matching of ≤8Ω between any two channels across its full operating temperature range of −40°C to +85°C. At +25°C, matching is tighter at ≤5Ω. This parameter is measured under defined conditions (INO = −1.0mA, VCOM = ±10V) and ensures consistent gain scaling in multi-channel sensor systems.
Does the MAX306EQI+TG11 require external protection diodes for overvoltage conditions?
No, the MAX306EQI+TG11 incorporates internal clamp diodes and is rated for ESD protection >2000V HBM, eliminating the need for external protection in most applications. However, absolute maximum ratings must still be observed: analog inputs must not exceed V+ + 2V or V− − 2V. For systems prone to severe transients, external diodes may be added - though they reduce usable signal range by ~1V.
How does the enable (EN) pin function in the MAX306EQI+TG11?
The EN pin on the MAX306EQI+TG11 is an active-high digital control that enables or disables all 16 analog switches. When EN = low, all NOx terminals and COM enter high-impedance states (leakage-limited isolation). When EN = high, channel selection is controlled by A0–A3. This allows system-level power gating and safe signal path isolation during startup or fault conditions.
MAX306EQI+TG11 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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:
- -
MAX306EQI+TG11 FAQ
1.How can I place an order for MAX306EQI+TG11 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX306EQI+TG11 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 MAX306EQI+TG11 reliable?
The price and inventory of MAX306EQI+TG11 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX306EQI+TG11 is usually 5 days.
3.What payment methods are accepted for MAX306EQI+TG11?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX306EQI+TG11 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX306EQI+TG11?
MAX306EQI+TG11 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX306EQI+TG11 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 MAX306EQI+TG11?
For technical support, including MAX306EQI+TG11 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX306EQI+TG11 requirements.
6.How does Aetrix verify that MAX306EQI+TG11 is sourced from the original manufacturer or authorized distributors?
All MAX306EQI+TG11 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 MAX306EQI+TG11 meets industry standards.
7.What is the process for return or replacement of MAX306EQI+TG11?
All MAX306EQI+TG11 units undergo pre-shipment inspection (PSI). If there is an issue with MAX306EQI+TG11, 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 MAX306EQI+TG11 part is unused and in its original packaging.
Return procedure for MAX306EQI+TG11:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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