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Analog Devices Inc./Maxim Integrated MAX307CWI
- Part No.:
- MAX307CWI
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 28-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX307CWI.pdf
- Description:
- IC MUX DUAL 8:1 100OHM 28SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,330
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Product details
Overview
MAX307CWI from Maxim Integrated is a precision differential 2-of-8 CMOS analog multiplexer designed for high-fidelity signal routing in dual-channel systems. It delivers <100Ω on-resistance (max), <5Ω channel-to-channel matching, <10pC charge injection, <2.5nA NO off-leakage at +85°C, and operates from ±4.5V to ±20V or +5V to +30V supplies - enabling rail-to-rail analog switching in test equipment and military radios.
For engineers reviewing the MAX307CWI datasheet, MAX307CWI pinout, MAX307CWI application, or MAX307CWI equivalent, this page provides verified specifications, package mapping to 28-pin Wide SO, functional pin roles, real-world use cases in guidance systems and audio routing, and two validated alternative parts with documented technical and application differences.
Technical Context
The MAX307CWI implements a differential 2-of-8 architecture with independent COMA and COMB outputs, each selecting one of eight bidirectional analog inputs (NO1A–NO8A and NO1B–NO8B) via three address lines (A0–A2) and an enable input (EN). Its silicon-gate CMOS process ensures matched on-resistance flatness (≤7Ω max over ±10V range) and guaranteed low leakage across temperature.
It supports TTL/CMOS-compatible logic inputs (VAL ≤ 0.8V, VAH ≥ 2.4V), achieves <250ns transition time, and maintains electrostatic discharge protection >2000V. Unlike single-ended muxes, its dual-output structure enables simultaneous routing of complementary or isolated signal pairs without crosstalk degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15V (dual supply) or 0–12V (single +12V supply): supports full rail-to-rail signal handling without clipping. |
| On-Resistance (RON) | 60Ω typ / 100Ω max at +25°C: ensures minimal voltage drop and gain error in precision measurement paths. |
| On-Resistance Match (ΔRON) | 1.5Ω typ / 5Ω max: guarantees consistent channel gain and minimal mismatch-induced distortion in multi-channel acquisition. |
| Charge Injection (Q) | 2pC typ / 10pC max: reduces sample-and-hold settling error and pedestal shift in data acquisition systems. |
| NO Off-Leakage (INO(OFF)) | ±2.5nA max at +85°C: prevents DC offset drift in high-impedance sensor interfaces and battery-operated systems. |
| Transition Time (tTRANS) | 110ns typ / 250ns max: enables fast channel switching for real-time signal monitoring and automated test sequencing. |
| Enable Turn-On Time (tON(EN)) | 130ns typ / 200ns max: allows precise synchronization of analog routing with digital control timing. |
Pinout & Package
MAX307CWI is housed in a 28-pin Wide SO (SOIC-W) package with standard 0.3-inch body width and gull-wing leads. Pin spacing is 0.050 inch (1.27 mm), compatible with IPC-7351B land pattern U28+2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 28 | V+, V− | Positive and negative supply rails: support bipolar (±4.5V to ±20V) or single-supply (+5V to +30V) operation. |
| 2, 27 | COMA, COMB | Differential output terminals: route selected channel pair (e.g., NO1A/NO1B) to separate downstream paths. |
| 4–11, 19–26 | NO8B–NO1B, NO1A–NO8A | Bidirectional analog inputs: eight differential input pairs, each independently selectable per output. |
| 12 | GND | Logic and substrate reference: must be connected to system ground for stable logic thresholds and ESD path. |
| 15–17 | A2, A1, A0 | Binary address inputs: decode 0–7 to select one of eight differential channels for both COMA and COMB. |
| 18 | EN | Active-high enable: disables all switches when low, reducing leakage and power consumption during idle states. |
| 3, 13, 14 | N.C. | No internal connection: must remain unconnected; no pull-up/down or routing required. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from V− to V+ without clipping - critical for ±15V instrumentation and military comms. |
| Guaranteed on-resistance flatness | ≤7Ω variation across ±10V signal range ensures linear gain response and minimal THD in audio routing. |
| ESD protection >2000V | Meets HBM Class 2 requirements, eliminating need for external protection diodes in ruggedized field equipment. |
| Plug-in upgrade for DG407/DG507A | Pin- and function-compatible replacement: enables drop-in reliability and performance upgrade in legacy designs. |
| Low power consumption | <1.25mW typical at +25°C: extends battery life in portable test gear and handheld guidance units. |
Applications
| Test Equipment | Military Radios |
|---|---|
|
Use Scenario: Automated test systems switch between multiple sensor inputs (e.g., thermocouples, strain gauges) for calibration and validation. IC Role / Device Role / Timing Role: Differential 2-of-8 analog multiplexer routes matched signal pairs to ADC front-ends while rejecting common-mode noise. Use Value: <5Ω on-resistance matching minimizes channel-to-channel gain error; <10pC charge injection ensures accurate DC-coupled sampling. |
Use Scenario: Secure voice/data radios require simultaneous routing of I/Q baseband signals with minimal crosstalk and distortion. IC Role / Device Role / Timing Role: Dual-output mux selects differential I and Q paths from antenna diversity banks or modulator banks. Use Value: −92dB crosstalk and −69dB off-isolation preserve signal integrity; >2000V ESD rating withstands harsh RF environments. |
| Guidance and Control Systems | Audio Signal Routing |
|
Use Scenario: Avionics inertial measurement units (IMUs) condition and multiplex accelerometer and gyroscope outputs. IC Role / Device Role / Timing Role: Precision analog switch routes differential sensor outputs to fault-tolerant signal chains with redundancy management. Use Value: <2.5nA off-leakage at +85°C prevents bias drift in high-Z MEMS interfaces; wide supply range accommodates avionics 28VDC buses. |
Use Scenario: Professional audio mixers route line-level stereo signals between processing stages (EQ, compression, effects). IC Role / Device Role / Timing Role: Dual 8-channel mux handles left/right channel pairs with matched on-resistance for balanced gain tracking. Use Value: 60Ω typical RON and 1.5Ω matching ensure <0.1dB channel balance; rail-to-rail operation preserves dynamic range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX307EWI | Extended temperature range (−40°C to +85°C) vs. MAX307CWI's 0°C to +70°C; otherwise identical pinout, specs, and functionality. | Suitable for industrial control cabinets and outdoor comms equipment where ambient temperatures exceed 70°C. | Select MAX307EWI when operating outside commercial temperature limits; no layout or firmware changes required. |
| ADG507AKRZ | Higher on-resistance (240Ω max), slower switching (600ns tTRANS), but offers 16-bit DAC-compatible leakage (<1nA at +85°C) and SPI interface. | Better suited for ultra-low-leakage medical instrumentation than high-speed test equipment or military radios. | Choose ADG507AKRZ only when sub-nA leakage dominates over speed/resistance; not a drop-in replacement. |
Compared with MAX307CWI, MAX307EWI extends thermal capability without trade-offs, while ADG507AKRZ prioritizes leakage over speed and resistance - making MAX307CWI optimal for cost-sensitive, high-performance dual-channel routing where commercial temp range suffices.
Availability
MAX307CWI is available at Aetrix Electronics and suitable for test equipment, military radios, guidance and control systems, and audio signal routing requiring stable component supply across production lifecycles.
Supply support for MAX307CWI 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 semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and automotive markets.
The MAX306/MAX307 product line was engineered for precision analog signal routing in mission-critical systems - emphasizing low distortion, thermal stability, and robustness in extended-temperature and high-reliability applications.
FAQ
What is the maximum supply voltage rating for MAX307CWI?
The MAX307CWI supports bipolar supplies up to ±20V and single supplies up to +30V. Absolute maximum ratings specify V+ to V− ≤ +44V, with V+ limited to −0.3V to +44V referenced to V−. Exceeding these may cause permanent damage. The device retains full functionality across its specified operating ranges: ±4.5V to ±20V or +5V to +30V.
Does MAX307CWI support single-supply operation with V− tied to GND?
Yes, MAX307CWI supports single-supply operation by connecting V− to GND. In this configuration, the analog signal range becomes 0V to V+, e.g., 0–12V with +12V supply. On-resistance increases slightly versus dual-supply mode (120–175Ω max), and switching times lengthen - but rail-to-rail signal handling and TTL/CMOS compatibility are fully retained.
How does the enable (EN) pin affect leakage current in MAX307CWI?
When EN is low, all switches are disabled, reducing NO and COM off-leakage currents to near-zero levels - critical for power-sensitive battery-operated systems. At +85°C, INO(OFF) remains <±2.5nA even with EN high; with EN low, leakage drops below 100pA (typical), minimizing standby power loss and signal contamination in idle channels.
Is MAX307CWI pin-compatible with the industry-standard DG407?
Yes, MAX307CWI is a direct plug-in upgrade for DG407. It shares identical 28-pin Wide SO packaging, pin functions, logic thresholds, and supply voltage ranges. Key improvements include lower on-resistance (100Ω vs. 125Ω max), tighter matching (<5Ω vs. <10Ω), reduced charge injection (<10pC vs. <25pC), and enhanced ESD protection (>2000V vs. unspecified).
What is the guaranteed on-resistance flatness specification for MAX307CWI?
MAX307CWI guarantees on-resistance flatness of ≤7Ω maximum over the specified analog signal range (±10V with dual supplies or 0–10V with single +12V supply). This is defined as the difference between maximum and minimum RON measured at signal extremes and ensures linear gain behavior - essential for precision instrumentation and audio applications where harmonic distortion must be minimized.
MAX307CWI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- 8:1
- Number of Circuits:
- 2
- 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, 65pF
- 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
MAX307CWI FAQ
1.How can I place an order for MAX307CWI through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX307CWI 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 MAX307CWI reliable?
The price and inventory of MAX307CWI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX307CWI is usually 5 days.
3.What payment methods are accepted for MAX307CWI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX307CWI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX307CWI?
MAX307CWI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX307CWI 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 MAX307CWI?
For technical support, including MAX307CWI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX307CWI requirements.
6.How does Aetrix verify that MAX307CWI is sourced from the original manufacturer or authorized distributors?
All MAX307CWI 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 MAX307CWI meets industry standards.
7.What is the process for return or replacement of MAX307CWI?
All MAX307CWI units undergo pre-shipment inspection (PSI). If there is an issue with MAX307CWI, 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 MAX307CWI part is unused and in its original packaging.
Return procedure for MAX307CWI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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