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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:1,165
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Product details
Overview
The MAX307CWI+ from Maxim Integrated is a precision, differential 2-of-8 CMOS analog multiplexer designed for high-fidelity signal routing in demanding measurement and control 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 signal handling in test equipment and military radios.
For engineers reviewing the MAX307CWI+ datasheet, MAX307CWI+ pinout, MAX307CWI+ application, or MAX307CWI+ equivalent, key selection criteria include guaranteed on-resistance flatness (≤7Ω), ESD protection >2000V, TTL/CMOS-compatible logic inputs, low power consumption (<1.25mW), and plug-in upgrade compatibility with DG407/DG507A.
Technical Context
The MAX307CWI+ implements a fully decoded 3-bit address interface (A0–A2) with enable (EN) control to select one of eight differential pairs (NO1A/NO1B through NO8A/NO8B), routing bidirectional analog signals between COMA/COMB outputs and corresponding NO terminals. Its silicon-gate CMOS process ensures stable on-resistance across temperature and signal voltage range.
It supports both bipolar (±4.5V to ±20V) and single-supply (+5V to +30V) operation, with rail-to-rail analog signal handling up to ±15V (dual) or 0–12V (single). Input logic thresholds are TTL/CMOS-compatible (VAL ≤ 0.8V, VAH ≥ 2.4V), and internal clamping diodes protect against overvoltage on NO, COM, and address pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15V (dual supply) or 0–12V (single supply): enables full-rail signal switching without clipping in precision instrumentation. |
| On-Resistance (RON) | <100Ω max at +25°C: minimizes signal attenuation and gain error in sensor front-ends and data acquisition paths. |
| On-Resistance Match | <5Ω max between channels: ensures consistent gain and offset across multiplexed sensor or calibration channels. |
| Charge Injection | <10pC: reduces settling error and droop in sample-and-hold circuits and switched-capacitor applications. |
| NO Off-Leakage | <2.5nA at +85°C: preserves accuracy in high-impedance DC-coupled measurement paths over temperature. |
| Transition Time | <250ns max: supports fast-switching applications such as automated test equipment scanning at kHz rates. |
| ESD Protection | >2000V HBM: enhances robustness during board handling and system integration without external protection. |
Pinout & Package
MAX307CWI+ is housed in a 28-pin Wide SO (SOIC-W) package, RoHS-compliant, with 1.27mm pitch and exposed pad option not specified. Pin functions are validated per Maxim's official pin description and functional diagrams.
| 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, COMB | Differential output B | Bidirectional terminal for second leg of selected differential pair; matched impedance path to COMA. |
| 3, 13, 14, N.C. | No internal connection | Unbonded pads; must remain unconnected and floating in PCB layout. |
| 4–11, NO8B–NO1B | Differential input B terminals | Eight bidirectional analog inputs paired with NO1A–NO8A; support ±15V signal swing. |
| 12, GND | Ground reference | Logic and substrate reference; separate from analog ground in mixed-signal layouts for noise isolation. |
| 15–17, A2–A0 | Binary address inputs | 3-bit code selects one of eight differential channels; TTL/CMOS-compatible thresholds (0.8V/2.4V). |
| 18, EN | Enable input | Active-high logic control; disables all switches when low, reducing leakage and crosstalk. |
| 19–26, NO1A–NO8A | Differential input A terminals | Eight bidirectional analog inputs paired with NO1B–NO8B; electrically matched to NOx-B counterparts. |
| 27, V− | Negative supply voltage input | Accepts −4.5V to −20V (bipolar) or 0V (single supply); must be sequenced after V+. |
| 28, COMA | Differential output A | Bidirectional terminal for first leg of selected differential pair; matched timing and RON to COMB. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog inputs spanning full supply rails (±15V or 0–12V), eliminating level-shifting in wide-dynamic-range systems. |
| Guaranteed on-resistance flatness | ≤7Ω variation across entire signal range ensures minimal THD and distortion in audio and precision measurement paths. |
| Plug-in upgrade for DG407/DG507A | Pin- and function-compatible replacement with improved specs: lower RON, tighter matching, and higher ESD rating. |
| Low power consumption | <1.25mW typical quiescent power enables use in battery-operated portable test gear and remote sensors. |
| TTL/CMOS logic compatibility | Direct interface with microcontrollers and FPGAs without level shifters, simplifying digital control design. |
Applications
| Test Equipment | Military Radios |
|---|---|
Use Scenario: Automated switching of calibration standards, sensor inputs, and DUT connections in benchtop multimeters and PXI-based ATE systems. IC Role / Device Role / Timing Role: Differential analog multiplexer routing high-accuracy DC/low-frequency signals between sources, DUTs, and measurement front-ends. Use Value: <5Ω RON matching and <2.5nA leakage at +85°C maintain µV-level accuracy across temperature and channel selection. |
Use Scenario: Signal routing in secure HF/VHF transceivers requiring EMI-immune differential analog paths and ruggedized component operation. IC Role / Device Role / Timing Role: Dual 8-channel switch selecting antenna diversity paths, IF filter banks, or modulator/demodulator signal chains. Use Value: >2000V HBM ESD rating and −40°C to +85°C extended temp grade (E-grade variants) ensure field reliability under harsh environmental stress. |
| Heads-Up Displays | Guidance and Control Systems |
Use Scenario: Multiplexing video sync, brightness control, and sensor feedback signals in avionics HUDs where space and power are constrained. IC Role / Device Role / Timing Role: Low-power analog switch managing RGB timing signals and ambient light sensor inputs with minimal crosstalk. Use Value: <10pC charge injection prevents image ghosting; <250ns transition time supports 60Hz+ display refresh without visible artifacts. |
Use Scenario: Routing inertial sensor outputs (gyro, accelerometer) and actuator feedback in flight control computers and UAV autopilots. IC Role / Device Role / Timing Role: Precision multiplexer conditioning high-impedance MEMS sensor signals prior to ADC sampling in real-time control loops. Use Value: ≤100Ω RON and rail-to-rail operation preserve signal integrity across wide temperature ranges without gain drift compensation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX307EWI+ | Same functionality and pinout, but rated for −40°C to +85°C industrial temperature range vs. 0°C to +70°C for MAX307CWI+. | Suitable for extended-temperature deployments in outdoor or engine-bay environments where C-grade thermal margin is insufficient. | Select MAX307EWI+ when operating ambient exceeds +70°C or requires industrial qualification. |
| ADG507AKRZ | 8-channel differential CMOS mux with 120Ω RON (typ), 25nA leakage at +85°C, and no guaranteed RON matching spec; uses 4-wire serial interface instead of parallel address lines. | Requires SPI controller overhead and offers lower precision in matching/crosstalk; better suited for lower-cost, non-critical routing rather than metrology-grade switching. | Choose ADG507AKRZ only if serial control is preferred and RON matching <5Ω is not required. |
Compared with MAX307EWI+, the MAX307CWI+ trades extended temperature capability for cost and availability in commercial-grade designs; compared with ADG507AKRZ, it provides superior channel matching, lower leakage, and simpler parallel addressing - critical for high-accuracy multiplexing in test and defense systems.
Availability
MAX307CWI+ is available at Aetrix Electronics and suitable for test equipment, military radios, heads-up displays, and guidance and control systems requiring stable component supply, long-term obsolescence management, and traceable sourcing.
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 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 product line was engineered for precision analog signal routing in mission-critical systems - emphasizing low distortion, temperature-stable RON, and robust ESD performance in test, military, and aerospace applications.
FAQ
What is the maximum supply voltage rating for MAX307CWI+?
The MAX307CWI+ supports bipolar supplies from ±4.5V to ±20V and single supplies from +5V to +30V. Absolute maximum ratings specify V+ to V− ≤ +44V, and V+ or V− must not exceed −0.3V to +44V relative to GND. Exceeding these limits risks permanent damage, even briefly.
Does MAX307CWI+ support rail-to-rail analog signal switching?
Yes, the MAX307CWI+ supports rail-to-rail analog signal handling: ±15V with dual supplies or 0V to +12V with a +12V single supply. This capability is confirmed in the Electrical Characteristics table under "Analog Signal Range" and enables direct interfacing with op-amps and ADCs without level shifting.
Is MAX307CWI+ pin-compatible with industry-standard alternatives like DG407?
Yes, the MAX307CWI+ is a plug-in upgrade for the DG407 and DG507A, sharing identical 28-pin Wide SO packaging, pinout, and logic interface. Key improvements include lower on-resistance (<100Ω vs. ~120Ω), tighter RON matching (<5Ω vs. unspecified), and higher ESD rating (>2000V vs. ~200V).
What is the guaranteed on-resistance matching specification for MAX307CWI+?
The MAX307CWI+ guarantees on-resistance matching between any two channels to be ≤5Ω at +25°C and ≤8Ω across the full operating temperature range (0°C to +70°C). This parameter is measured at INO = −1.0mA and VCOM = ±10V, and is critical for minimizing gain error in multi-channel instrumentation.
Can MAX307CWI+ operate from a single +5V supply?
No - the MAX307CWI+ requires a minimum single-supply voltage of +5V, but its analog signal range collapses significantly below +12V. At +5V supply, the usable analog range is reduced, and switching times increase (up to 10µs). For reliable rail-to-rail operation, +12V or higher is recommended per the datasheet's Typical Operating Characteristics.
MAX307CWI+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- 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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