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Analog Devices Inc./Maxim Integrated MAX307EWI
- Part No.:
- MAX307EWI
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 28-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX307EWI.pdf
- Description:
- IC MUX DUAL 8:1 100OHM 28SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,035
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Product details
Overview
MAX307EWI from Maxim Integrated is a precision, differential 2-of-8 CMOS analog multiplexer designed for high-fidelity signal routing in demanding instrumentation and control systems. It features <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 military radios and test equipment.
For engineers reviewing the MAX307EWI datasheet, MAX307EWI pinout, MAX307EWI application, or MAX307EWI equivalent, this page delivers verified electrical specs, package mapping to 28-pin Wide SO, functional pin roles, real-world use cases in guidance systems and battery-operated devices, and two validated alternative parts with documented technical and application differences.
Technical Context
The MAX307EWI implements a dual 8-channel differential architecture with independent COMA and COMB outputs, controlled by three address inputs (A0–A2) and an active-high enable (EN). Its silicon-gate CMOS process ensures TTL/CMOS logic compatibility and guarantees break-before-make switching with <40ns tOPEN at +25°C.
It supports unbalanced supply configurations (e.g., +24V/−5V), maintains flat on-resistance (<7Ω max variation) across ±10V signal range, and delivers <−92dB crosstalk and <−69dB off-isolation at 100kHz - critical for low-noise sample-and-hold and audio routing applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15V (dual supply); enables full rail-to-rail signal handling without clipping in ±15V systems. |
| On-Resistance (RON) | <100Ω max at +25°C; ensures minimal voltage drop and gain error in precision sensor front-ends. |
| On-Resistance Match | <5Ω max between channels; preserves signal integrity when switching between matched sensor paths. |
| Charge Injection | <10pC; reduces settling error in sample-and-hold circuits and ADC driver stages. |
| NO Off-Leakage | <2.5nA at +85°C; prevents DC offset drift in high-impedance medical or scientific measurement nodes. |
| Transition Time | <250ns max; supports multiplexing of signals up to ~1.5MHz without significant edge distortion. |
| ESD Protection | >2000V HBM; enhances robustness during board handling and system integration in industrial environments. |
Pinout & Package
MAX307EWI is housed in a 28-pin Wide SO (SOIC-W) package with 300 mil body width, RoHS-compliant, and rated for −40°C to +85°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 28 | V+, V− | Positive and negative supply rails; support bipolar operation from ±4.5V to ±20V or single +5V to +30V (V− tied to GND). |
| 2, 27 | COMB, COMA | Differential output terminals; allow simultaneous routing of complementary signal pairs (e.g., balanced audio, differential ADC inputs). |
| 4–11, 19–26 | NO8B–NO1B, NO1A–NO8A | Bidirectional analog inputs; eight independent channels per output, supporting true differential 2×8 switching. |
| 12 | GND | Ground reference for logic and internal biasing; must be low-impedance to minimize noise coupling into analog paths. |
| 14–17 | A2, A1, A0, EN | 3-bit binary address + enable control; EN must be high to activate selected channel; all address inputs are TTL/CMOS compatible. |
| 3, 13, 14 | N.C. | No internal connection; must remain unconnected to avoid parasitic coupling or latch-up risk. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog inputs from V− to V+ (±15V typical), eliminating level-shifting circuitry in wide-dynamic-range systems. |
| Guaranteed flat on-resistance | <7Ω variation over full ±10V signal range - ensures consistent gain and linearity across input voltage swing. |
| Low power consumption | <1.25mW typical at +25°C - extends battery life in portable test gear and handheld military comms units. |
| Plug-in upgrade path | Direct replacement for industry-standard DG407 and DG507A, enabling legacy design refresh without PCB redesign. |
| High off-isolation | <−69dB at 100kHz - suppresses interference between inactive and active channels in dense multiplexed sensor arrays. |
Applications
| Test Equipment | Military Radios |
|---|---|
|
Use Scenario: Automated test systems switching between multiple sensor calibrations and reference standards. IC Role / Device Role / Timing Role: Differential analog multiplexer selecting calibrated signal sources for DMM or oscilloscope front-end. Use Value: <5Ω RON match and <10pC charge injection ensure measurement repeatability within 0.01% across 16-point calibration sequences. |
Use Scenario: Secure voice/data transceivers requiring low-distortion RF IF signal routing under vibration and temperature extremes. IC Role / Device Role / Timing Role: Dual-path analog switch managing balanced IF signals between filters, mixers, and ADCs. Use Value: −92dB crosstalk and >2000V ESD rating maintain signal fidelity and field reliability in harsh deployed environments. |
| Guidance Systems | Battery-Operated Systems |
|
Use Scenario: Inertial navigation units multiplexing gyroscope and accelerometer outputs for real-time fusion processing. IC Role / Device Role / Timing Role: Low-leakage, high-precision mux routing millivolt-level sensor outputs to low-noise amplifiers. Use Value: <2.5nA NO off-leakage at +85°C prevents thermal drift-induced heading errors in airborne platforms. |
Use Scenario: Portable environmental monitors switching between gas, temperature, and humidity sensors on a single ADC channel. IC Role / Device Role / Timing Role: Power-efficient analog switch enabling multi-sensor data acquisition with <1.25mW quiescent dissipation. Use Value: Single +5V operation and rail-to-rail capability eliminate external regulators and level shifters, reducing BOM count by 3 components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX307EUI | TSSOP-28 package (4.4mm × 7.8mm); 0.65mm pitch; same electrical specs and −40°C to +85°C rating. | Better suited for space-constrained PCBs where thermal mass and footprint are critical (e.g., UAV avionics). | Select MAX307EUI when board area is limited and reflow-compatible fine-pitch assembly is available. |
| ADG507AKRZ | Analog Devices part; 28-lead SOIC; RON = 125Ω (max), leakage = 5nA at +85°C, no guaranteed RON match spec. | Acceptable for non-critical industrial I/O modules but not for precision metrology or military-grade signal integrity. | Choose ADG507AKRZ only if cost sensitivity outweighs need for <5Ω matching and <10pC charge injection. |
Compared with MAX307EWI, MAX307EUI offers identical performance in a smaller footprint but requires tighter assembly control, while ADG507AKRZ trades precision specs for broader commercial availability - making MAX307EWI the optimal choice for applications demanding guaranteed matching, ultra-low leakage, and military-temperature reliability.
Availability
MAX307EWI is available at Aetrix Electronics and suitable for test equipment, military radios, guidance systems, and battery-operated systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX307EWI 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 and mixed-signal ICs for industrial, automotive, communications, and computing markets, with emphasis on precision, reliability, and integration.
The MAX306/MAX307 product line was engineered specifically for high-accuracy analog signal routing in mission-critical instrumentation, defense electronics, and automated test systems - prioritizing low distortion, thermal stability, and ruggedized operation.
FAQ
What is the operating temperature range of the MAX307EWI?
The MAX307EWI is specified for −40°C to +85°C ambient operation, validated across its full electrical performance envelope including on-resistance, leakage, and switching speed. This extended industrial temperature grade makes it suitable for deployment in vehicle-mounted radios, outdoor test gear, and avionics subsystems where thermal cycling is routine. The MAX307EWI achieves this rating using Maxim's improved 44V silicon-gate process and qualified Wide SO packaging.
Does the MAX307EWI support single-supply operation?
Yes, the MAX307EWI supports single-supply operation from +5V to +30V. When used in single-supply mode, V− must be connected to GND. The device maintains rail-to-rail analog signal handling (0V to V+) and retains TTL/CMOS logic compatibility. At +5V supply, transition time increases to ≤450ns, and on-resistance rises to ≤175Ω - both values remain fully specified and tested per the datasheet.
How does the MAX307EWI differ from the MAX306EWI?
The MAX307EWI is a differential 2-of-8 analog multiplexer with two independent outputs (COMA and COMB) and eight bidirectional inputs per side, whereas the MAX306EWI is a single-ended 1-of-16 mux with one common output (COM) and sixteen inputs. Their pinouts are incompatible: MAX307EWI uses A0–A2 (3-bit) addressing and has separate COMA/COMB pins, while MAX306EWI uses A0–A3 (4-bit) and a single COM. Both share the same Wide SO package and −40°C to +85°C rating.
Is the MAX307EWI pin-compatible with the DG407 or DG507A?
Yes - the MAX307EWI is explicitly designed as a plug-in upgrade for the industry-standard DG407 and DG507A multiplexers. It matches their 28-pin Wide SO footprint, pin functions, logic thresholds, and supply voltage ranges. No PCB layout changes are required; users gain improved specs including lower on-resistance (<100Ω vs. ~120Ω), tighter matching (<5Ω vs. ~10Ω), and enhanced ESD protection (>2000V vs. ~200V).
What is the maximum analog signal voltage the MAX307EWI can handle?
The MAX307EWI supports analog signals from V− to V+ - up to ±15V with dual ±15V supplies or 0V to +12V with +12V/V−=GND configuration. Absolute maximum ratings allow VNO and VCOM to swing to (V− −2V) and (V+ +2V), but guaranteed performance (e.g., RON flatness, leakage) applies only within the specified analog signal range: ±15V (dual) or 0V to +12V (single). Exceeding these ranges risks increased distortion or parametric degradation.
MAX307EWI 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-SOIC
MAX307EWI FAQ
1.How can I place an order for MAX307EWI through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX307EWI 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 MAX307EWI reliable?
The price and inventory of MAX307EWI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX307EWI is usually 5 days.
3.What payment methods are accepted for MAX307EWI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX307EWI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX307EWI?
MAX307EWI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX307EWI 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 MAX307EWI?
For technical support, including MAX307EWI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX307EWI requirements.
6.How does Aetrix verify that MAX307EWI is sourced from the original manufacturer or authorized distributors?
All MAX307EWI 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 MAX307EWI meets industry standards.
7.What is the process for return or replacement of MAX307EWI?
All MAX307EWI units undergo pre-shipment inspection (PSI). If there is an issue with MAX307EWI, 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 MAX307EWI part is unused and in its original packaging.
Return procedure for MAX307EWI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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