Analog Devices Inc./Maxim Integrated MAX306CPI+
- Part No.:
- MAX306CPI+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 28-DIP (0.600", 15.24mm)
- Datasheet:
-
MAX306CPI+.pdf
- Description:
- IC MUX 16:1 100OHM 28DIP
- Quantity:
- Payment:

- Shipping:

Inventory:328
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Product details
Overview
MAX306CPI+ from Maxim Integrated is a precision 1-of-16 single-ended CMOS analog multiplexer with ≤100Ω on-resistance, <5Ω channel-to-channel on-resistance matching, and <10pC charge injection-designed for high-fidelity signal routing in sample-and-hold circuits and test equipment operating from +5V to +30V or ±4.5V to ±20V supplies.
For engineers reviewing the MAX306CPI+ datasheet, MAX306CPI+ pinout, MAX306CPI+ application, or MAX306CPI+ equivalent, key selection criteria include guaranteed on-resistance flatness (≤7Ω max), rail-to-rail analog signal handling (±15V dual supply), low leakage (<2.5nA NO off-leakage at +85°C), and TTL/CMOS logic compatibility without external level shifting.
Technical Context
The MAX306CPI+ implements a monolithic CMOS switch architecture with integrated address decoding (A0–A3) and enable control (EN), supporting 16 bidirectional analog inputs (NO1–NO16) routed to a common bidirectional output (COM). Its silicon-gate process ensures sub-10pC charge injection and ESD protection >2000V.
It operates across three supply configurations: bipolar (±4.5V to ±20V), single positive (+5V to +30V), or unbalanced (e.g., +24V/−5V), with rail-to-rail analog signal range up to ±15V (dual) or 0–12V (single), while maintaining fast switching (tTRANS < 250ns typ) and break-before-make timing (tOPEN < 40ns).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance (RON) | ≤100Ω max at +25°C; ensures minimal signal attenuation and gain error in precision measurement paths. |
| On-resistance match (ΔRON) | <5Ω max between channels; enables accurate ratiometric measurements and matched gain in multi-channel systems. |
| Analog signal range | ±15V (dual supply); supports full-rail operation with op-amps and ADCs referenced to ±15V supplies. |
| Charge injection (Q) | <10pC max; reduces settling error and droop in sample-and-hold and switched-capacitor circuits. |
| NO off-leakage (INO(OFF)) | <2.5nA at +85°C; preserves accuracy in high-impedance sensor interfaces and battery-powered data loggers. |
| Transition time (tTRANS) | <250ns max; enables multiplexing of signals up to ~1MHz without significant edge distortion. |
| ESD protection | >2000V HBM; eliminates need for external ESD clamping in industrial control I/O modules. |
Pinout & Package
MAX306CPI+ is housed in a 28-pin plastic DIP (PDIP) package with 0.6-inch width, compatible with standard through-hole PCB assembly and socketing for prototyping.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 27 | V+, V− | Positive and negative supply rails; support bipolar (±4.5V to ±20V) or single-supply (+5V to +30V, V− tied to GND) operation. |
| 12 | GND | Digital ground reference; decoupling required near V+/V− pins to suppress switching noise coupling into analog paths. |
| 4–11, 19–26 | NO16–NO9, NO1–NO8 | 16 bidirectional analog input terminals; each electrically isolated when unselected, with ≤2.5nA off-leakage at +85°C. |
| 28 | COM | Common bidirectional analog output; connects to one selected NO channel; handles rail-to-rail signals up to ±15V. |
| 14–17 | A3–A0 | 4-bit binary address inputs; select one of 16 NO channels; TTL/CMOS-compatible (VAL ≤ 0.8V, VAH ≥ 2.4V). |
| 18 | EN | Active-high enable; disables all switches when low; allows system-level power gating and channel bank isolation. |
| 2, 3, 13 | N.C. | No internal connection; must remain unconnected per design-no pull-up/down or routing allowed. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog inputs spanning V− to V+ (e.g., −15V to +15V), eliminating level-shifting circuitry in ±15V systems. |
| Guaranteed on-resistance flatness | ≤7Ω max variation over full signal range; maintains consistent gain and linearity across input voltage swing. |
| Plug-in upgrade for DG406/DG506A | Pins, footprint, and logic interface identical to industry-standard DG406-enables drop-in replacement without layout change. |
| Low power consumption | <1.25mW typical at +25°C; suitable for portable instrumentation and always-on monitoring nodes. |
| CMOS logic inputs | Reduces loading on microcontroller GPIOs and FPGA I/O banks, enabling direct drive without buffer stages. |
Applications
| Sample-and-Hold Circuits | Test Equipment |
|---|---|
Use Scenario: Multiplexing multiple sensor outputs into a single high-speed ADC sampling path with minimal hold-step error. IC Role / Device Role / Timing Role: Precision analog switch selecting one of 16 transducer signals to feed a sample-and-hold amplifier before digitization. Use Value: ≤10pC charge injection and ≤7Ω on-resistance flatness minimize pedestal error and gain nonlinearity during acquisition. |
Use Scenario: Automated test systems requiring reconfigurable signal routing between DUTs, sources, and measurement instruments. IC Role / Device Role / Timing Role: High-isolation (−69dB off-isolation), low-crosstalk (−92dB) analog mux enabling simultaneous multi-channel stimulus/response testing. Use Value: <2.5nA off-leakage at +85°C ensures stable DC biasing across temperature; fast tTRANS (<250ns) supports high-throughput parametric testing. |
| Heads-Up Displays | Military Radios |
Use Scenario: Routing video sync pulses, brightness controls, and symbol overlay signals in avionics HUDs with strict EMI and reliability requirements. IC Role / Device Role / Timing Role: Signal path selector managing analog video timing and intensity modulation under wide temperature (-40°C to +85°C for extended variants). Use Value: >2000V ESD protection prevents field failures from static discharge during maintenance; rail-to-rail operation matches display driver voltage ranges. |
Use Scenario: Channel selection in secure voice/data radio front-ends where signal integrity and long-term reliability are mission-critical. IC Role / Device Role / Timing Role: Low-noise analog switch isolating receive paths and antenna diversity ports in HF/VHF transceivers. Use Value: Guaranteed <5Ω on-resistance match ensures balanced phase/gain across RF calibration paths; −55°C to +125°C variants (MAX306MJI) support extreme environments. |
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 electrical specs; 28-pin wide SO package (surface-mount), 11.7mm × 7.6mm footprint. | Preferred for automated SMT production and space-constrained PCBs; requires reflow profile validation. | Select MAX306CWI+ when board real estate or assembly method favors SOIC over PDIP. |
| DG406DN+ | Higher on-resistance (120Ω typ), wider ΔRON (15Ω), no guaranteed charge injection spec; legacy BiFET process. | Suitable only for non-critical DC/low-frequency routing; not recommended for precision sample-and-hold or high-speed test gear. | Choose DG406DN+ only for cost-sensitive, non-precision legacy designs where MAX306CPI+ is unavailable. |
Compared with MAX306CPI+, MAX306CWI+ offers identical performance in a surface-mount package for volume manufacturing, while DG406DN+ trades precision and speed for lower cost in less demanding applications-making MAX306CPI+ the optimal choice for new designs requiring guaranteed low charge injection and tight on-resistance matching.
Availability
MAX306CPI+ is available at Aetrix Electronics and suitable for sample-and-hold circuits, test equipment, and military radios requiring stable component supply, long-lifecycle availability, and traceable sourcing for defense and industrial OEM programs.
Supply support for MAX306CPI+ 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/MAX307 family was designed specifically for precision analog signal routing in instrumentation-grade systems-emphasizing low distortion, minimal switching artifacts, and robust operation across extended temperature and supply ranges.
FAQ
What supply voltage ranges does the MAX306CPI+ support?
The MAX306CPI+ operates from a single +5V to +30V supply (with V− tied to GND) or bipolar ±4.5V to ±20V supplies. It maintains full rail-to-rail analog signal handling (e.g., ±15V) and TTL/CMOS logic compatibility across this range. Absolute maximum ratings limit V+ to +44V relative to V−, and digital inputs tolerate voltages up to V+ +2V or V− −2V.
Is the MAX306CPI+ pin-compatible with the DG406?
Yes-the MAX306CPI+ is explicitly designed as a plug-in upgrade for the DG406, DG407, DG506A, and DG507A. Pin functions, pinout order, supply connections, address inputs (A0–A3), enable (EN), and analog I/O (NO1–NO16, COM) are identical. No PCB changes are required for replacement, though improved specs (lower RON, tighter matching, lower Q) deliver immediate system-level benefits.
What is the maximum analog signal voltage the MAX306CPI+ can handle?
Under ±15V dual-supply conditions, the MAX306CPI+ supports analog signals from V− to V+ (i.e., −15V to +15V) with guaranteed performance. In single-supply mode (+12V, V− = GND), the usable range is 0V to +12V. Exceeding these ranges risks increased leakage or distortion; absolute maximum analog input is clamped to V+ +2V and V− −2V by internal diodes.
How does the MAX306CPI+ minimize errors in sample-and-hold applications?
The MAX306CPI+ minimizes sample-and-hold errors via guaranteed <10pC charge injection (reducing pedestal error), <5Ω on-resistance matching (preserving ratiometric accuracy), and <7Ω on-resistance flatness (ensuring linear gain vs. input voltage). These specs-combined with <2.5nA NO off-leakage at +85°C-maintain hold capacitor voltage stability over time and temperature.
Does the MAX306CPI+ require external decoupling capacitors?
Yes-bypass capacitors (typically 0.1µF ceramic + 10µF tantalum per supply) are required between V+ and GND, and V− and GND, placed as close as possible to pins 1 and 27. This suppresses supply transients induced by fast switching (tTRANS < 250ns), preventing noise coupling into sensitive analog paths and ensuring stable on-resistance and leakage performance.
MAX306CPI+ 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 28-PDIP
MAX306CPI+ FAQ
1.How can I place an order for MAX306CPI+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX306CPI+ 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 MAX306CPI+ reliable?
The price and inventory of MAX306CPI+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX306CPI+ is usually 5 days.
3.What payment methods are accepted for MAX306CPI+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX306CPI+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX306CPI+?
MAX306CPI+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX306CPI+ 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 MAX306CPI+?
For technical support, including MAX306CPI+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX306CPI+ requirements.
6.How does Aetrix verify that MAX306CPI+ is sourced from the original manufacturer or authorized distributors?
All MAX306CPI+ 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 MAX306CPI+ meets industry standards.
7.What is the process for return or replacement of MAX306CPI+?
All MAX306CPI+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX306CPI+, 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 MAX306CPI+ part is unused and in its original packaging.
Return procedure for MAX306CPI+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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