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Analog Devices Inc./Maxim Integrated MAX307CWI+T
- Part No.:
- MAX307CWI+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 28-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX307CWI+T.pdf
- Description:
- IC MUX DUAL 8:1 100OHM 28SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,876
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Product details
Overview
The MAX307CWI+T from Maxim Integrated is a precision differential 2-of-8 CMOS analog multiplexer with rail-to-rail signal handling, <100Ω on-resistance (typ. 60Ω), <5Ω channel-to-channel on-resistance match, and <10pC charge injection-enabling high-fidelity signal routing in test equipment and military radio front-ends.
For engineers reviewing the MAX307CWI+T datasheet, MAX307CWI+T pinout, MAX307CWI+T application, or MAX307CWI+T equivalent, this page delivers verified specifications, validated pin functions, real-world use cases for differential switching, and confirmed drop-in alternatives to DG507A and MAX307EWI.
Technical Context
The MAX307CWI+T implements a dual 8-channel differential architecture with independent COMA/COMB outputs and shared A0–A2 address inputs plus EN enable-supporting simultaneous selection of two matched analog paths. It uses Maxim's 44V silicon-gate CMOS process to achieve guaranteed ESD protection >2000V and leakage <2.5nA at +85°C.
It operates from ±4.5V to ±20V bipolar supplies or +5V to +30V single supply (V− tied to GND), maintaining TTL/CMOS logic compatibility and fast switching (tTRANS < 250ns). Its flat on-resistance (≤7Ω variation over ±10V range) ensures minimal gain error in precision instrumentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15V (dual supply); enables full rail-to-rail operation across industrial and military voltage rails |
| On-Resistance (RON) | <100Ω max (at TA = +25°C); ensures low insertion loss and minimal self-heating in signal chains |
| On-Resistance Match | <5Ω max between channels; critical for matched-pair applications like differential ADC front-ends |
| Charge Injection | <10pC; reduces sampling error and settling time in sample-and-hold circuits |
| NO Off-Leakage (INO(OFF)) | <2.5nA at +85°C; preserves accuracy in high-impedance sensor interfaces |
| Transition Time | <250ns; supports multiplexing of signals up to ~1.5MHz without significant edge degradation |
| ESD Protection | >2000V HBM; enhances robustness in field-deployable test and comms systems |
Pinout & Package
MAX307CWI+T is housed in a 28-pin Wide SO (SOIC-W) package with 300 mil body width and gull-wing leads-RoHS-compliant, JEDEC-standard footprint (land pattern 90-0109), suitable for automated SMT assembly and thermal cycling reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, V+ | Positive supply input | Accepts +5V to +30V (single) or up to +20V (bipolar); powers internal CMOS switches and logic |
| 2, COMB | Differential output B | Bidirectional path for second selected channel; used with COMA for true differential signal routing |
| 3, 13, 14, N.C. | No connection | Not internally bonded; must remain unconnected per datasheet to avoid parasitic coupling |
| 4–11, NO8B–NO1B | Analog inputs B | Eight bidirectional differential inputs for Channel B; matched to NOxA group for common-mode rejection |
| 12, GND | Ground reference | Logic and substrate reference; must be low-impedance tie to system ground plane |
| 15–17, A2–A0 | Address inputs | 3-bit binary select for 8-channel decoding; TTL/CMOS compatible (VAL ≤ 0.8V, VAH ≥ 2.4V) |
| 18, EN | Enable input | Active-high digital control; disables all switches when low, reducing leakage and power consumption |
| 19–26, NO1A–NO8A | Analog inputs A | Eight bidirectional differential inputs for Channel A; electrically and thermally matched to NOxB group |
| 27, V− | Negative supply input | Accepts −4.5V to −20V (bipolar); sets lower analog rail; tied to GND for single-supply operation |
| 28, COMA | Differential output A | Bidirectional path for first selected channel; paired with COMB to support balanced signal transmission |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from V− to V+ without clipping-essential for ±15V op-amp stages and wide-dynamic-range sensors |
| Guaranteed on-resistance flatness | ≤7Ω variation over full ±10V range-minimizes gain nonlinearity in precision measurement front-ends |
| Plug-in upgrade for DG507A | PIN-compatible replacement with improved RON match, lower leakage, and higher ESD rating-no PCB redesign required |
| Low power consumption | <1.25mW typical at +25°C-enables battery-operated portable test gear and low-quiescent systems |
| CMOS logic inputs | Reduces loading on microcontroller GPIOs and FPGA I/O banks-eliminates need for level-shifting buffers |
Applications
| Test Equipment Signal Routing | Military Radio Front-Ends |
|---|---|
|
Use Scenario: Automated test systems route multiple sensor or stimulus signals to a single DMM or oscilloscope input using sequential channel selection. IC Role / Device Role / Timing Role: Dual 8-channel differential multiplexer enabling synchronized switching of matched signal pairs to preserve common-mode rejection. Use Value: <5Ω RON match and <10pC charge injection ensure sub-LSB error in 16-bit data acquisition under dynamic switching conditions. |
Use Scenario: RF transceivers require low-distortion switching between antenna diversity paths or calibration loops while maintaining signal integrity. IC Role / Device Role / Timing Role: High-isolation (>69dB off-isolation) differential mux isolating receive paths during transmit bursts to prevent front-end damage. Use Value: ±20V bipolar operation and >2000V ESD rating allow direct integration into MIL-STD-461-compliant RF subsystems without external protection. |
| Sample-and-Hold Circuits | Battery-Operated Guidance Systems |
|
Use Scenario: Precision data loggers capture transient analog waveforms by rapidly selecting sensor inputs into a hold capacitor before ADC conversion. IC Role / Device Role / Timing Role: Low-charge-injection switch minimizing pedestal error and settling time after channel change. Use Value: <10pC Q and <250ns tTRANS enable accurate sampling of 100kHz+ signals with <0.1% gain error across temperature. |
Use Scenario: Portable inertial navigation units switch between gyroscope, accelerometer, and magnetometer outputs under tight power budgets. IC Role / Device Role / Timing Role: Ultra-low-leakage (<2.5nA INO(OFF) at +85°C) analog mux preserving signal fidelity in high-Z MEMS sensor interfaces. Use Value: <1.25mW power dissipation extends battery life in handheld guidance devices operating continuously for >8 hours on AA cells. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DG507A | Higher on-resistance (120Ω typ), no guaranteed RON match, 1000V ESD rating | Limited to commercial-grade test fixtures; not recommended for extended-temperature or high-reliability use | Select DG507A only if legacy board compatibility is mandatory and performance margins allow higher RON and leakage |
| MAX307EWI | Same pinout and function; rated for −40°C to +85°C (vs. 0°C to +70°C for MAX307CWI+T) | Suitable for industrial outdoor deployments where ambient temperature exceeds +70°C | Choose MAX307EWI when operating temperature range must extend beyond commercial grade without layout change |
Compared with DG507A, MAX307CWI+T delivers tighter RON matching and superior ESD robustness; compared with MAX307EWI, it offers identical functionality at lower cost for applications confined to 0°C–+70°C environments.
Availability
MAX307CWI+T is available at Aetrix Electronics and suitable for test equipment, military radios, sample-and-hold circuits, and battery-operated guidance systems requiring stable component supply, long-term traceability, and RoHS-compliant packaging.
Supply support for MAX307CWI+T 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) designs high-performance analog, mixed-signal, and power-management ICs for demanding industrial, automotive, and communications applications.
The MAX306/MAX307 family was engineered specifically for precision analog signal routing-emphasizing low distortion, matched channel performance, and rugged operation in harsh environments.
FAQ
What is the maximum analog signal voltage range supported by the MAX307CWI+T?
The MAX307CWI+T supports an analog signal range of ±15V when operated from ±15V supplies, and 0V to +12V with a +12V single supply (V− = GND). This rail-to-rail capability allows direct interfacing with standard op-amps and sensors without level-shifting circuitry. The device maintains specified on-resistance flatness and leakage performance across these ranges, as confirmed in the Electrical Characteristics tables for both dual- and single-supply configurations.
Is the MAX307CWI+T pin-compatible with the DG507A?
Yes, the MAX307CWI+T is a direct pin-compatible upgrade for the DG507A, sharing identical 28-pin Wide SO packaging, pin assignments, and logic-level compatibility. It improves upon DG507A with lower on-resistance (100Ω vs. 120Ω), guaranteed <5Ω RON matching, <10pC charge injection (vs. unspecified), and >2000V ESD protection (vs. 1000V). No PCB changes are required for migration.
What is the operating temperature range of the MAX307CWI+T?
The MAX307CWI+T is specified for commercial temperature operation from 0°C to +70°C. This range is explicitly defined in the Ordering Information table and validated across all electrical parameters-including leakage current, on-resistance, and switching speed-in the Electrical Characteristics section. For extended temperature operation (−40°C to +85°C), the MAX307EWI variant is recommended.
Does the MAX307CWI+T support single-supply operation?
Yes, the MAX307CWI+T supports single-supply operation from +5V to +30V, with V− connected to GND. In this configuration, the analog signal range is 0V to V+, e.g., 0V to +12V at +12V supply. All key specs-including on-resistance (120Ω–175Ω), transition time (<450ns), and leakage-are characterized and guaranteed under single-supply conditions per the datasheet's "Electrical Characteristics-Single Supply" table.
How does the MAX307CWI+T handle differential signal routing?
The MAX307CWI+T implements true differential routing via two independent 8-channel banks (NO1A–NO8A/COMA and NO1B–NO8B/COMB), each selectable via shared A0–A2 address lines and EN. This allows simultaneous, matched switching of complementary signal paths-critical for noise rejection in instrumentation and RF systems. Pin-level functional diagrams and truth tables confirm that COMA and COMB operate independently but with identical timing and electrical behavior.
MAX307CWI+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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+T FAQ
1.How can I place an order for MAX307CWI+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX307CWI+T 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+T reliable?
The price and inventory of MAX307CWI+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX307CWI+T is usually 5 days.
3.What payment methods are accepted for MAX307CWI+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX307CWI+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX307CWI+T?
MAX307CWI+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX307CWI+T 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+T?
For technical support, including MAX307CWI+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX307CWI+T requirements.
6.How does Aetrix verify that MAX307CWI+T is sourced from the original manufacturer or authorized distributors?
All MAX307CWI+T 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+T meets industry standards.
7.What is the process for return or replacement of MAX307CWI+T?
All MAX307CWI+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX307CWI+T, 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+T part is unused and in its original packaging.
Return procedure for MAX307CWI+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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