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Analog Devices Inc./Maxim Integrated MAX307EQI+
- Part No.:
- MAX307EQI+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 28-LCC (J-Lead)
- Datasheet:
-
MAX307EQI+.pdf
- Description:
- IC MUX DUAL 8:1 100OHM 28PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:1,574
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Product details
Overview
MAX307EQI+ from Maxim Integrated is a precision, monolithic, CMOS differential 2-of-8 analog multiplexer designed for high-fidelity signal routing in demanding analog 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 signal handling in test equipment and military radios.
For engineers reviewing the MAX307EQI+ datasheet, MAX307EQI+ pinout, MAX307EQI+ application, or MAX307EQI+ equivalent, key selection criteria include guaranteed on-resistance flatness (≤7Ω), ESD protection >2000V, TTL/CMOS logic compatibility, low power consumption (<1.25mW), and plug-in upgrade capability for DG407/DG507A in industrial and aerospace designs.
Technical Context
The MAX307EQI+ implements a fully decoded 3-bit address interface (A0–A2) with enable control (EN) to select one of eight differential pairs (NO1A/NO1B through NO8A/NO8B), routing bidirectional analog signals between COMA/COMB outputs and corresponding input channels. Its silicon-gate CMOS process ensures matched switch characteristics across temperature.
It supports both bipolar (±4.5V to ±20V) and single-supply (+5V to +30V) operation with rail-to-rail analog signal range up to ±15V (dual) or 0–12V (single), while maintaining fast switching (tTRANS < 250ns typ), low crosstalk (−92dB), and high off-isolation (−69dB) - critical for precision sample-and-hold and guidance system front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance | <100Ω max at +25°C; ensures minimal signal attenuation and gain error in precision measurement paths |
| On-Resistance Match | <5Ω max between channels; enables accurate differential signal integrity and common-mode rejection |
| Charge Injection | <10pC; reduces voltage glitch and settling error in sample-and-hold and ADC driver stages |
| NO Off-Leakage | <2.5nA at +85°C; preserves accuracy in high-impedance sensor interfaces and battery-operated systems |
| Supply Range | ±4.5V to ±20V or +5V to +30V; supports flexible power architecture including unbalanced rails (e.g., +24V/−5V) |
| Transition Time | <250ns typ; enables high-speed multiplexing in automated test equipment and comms channel switching |
| ESD Protection | >2000V HBM; enhances robustness during board handling and field deployment in harsh environments |
Pinout & Package
MAX307EQI+ is housed in a 28-pin PLCC (plastic leaded chip carrier) package with gull-wing leads, rated for −40°C to +85°C operation and RoHS-compliant.
| 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 analog terminal for second half of selected differential pair (e.g., NO1B–COMB) |
| 3, 13, 14, N.C. | No internal connection | Unbonded pins; must remain unconnected per design - no routing or grounding required |
| 4–11, NO8B–NO1B | Analog inputs B side | Bidirectional differential inputs paired with NO1A–NO8A; support rail-to-rail signal swing |
| 12, GND | Ground reference | Logic and substrate reference; separate from analog signal ground in mixed-signal layouts |
| 15–17, A2–A0 | Address inputs | 3-bit binary select lines (TTL/CMOS compatible) determining active differential channel (0–7) |
| 18, EN | Enable input | Active-high logic control: EN = 0 disables all switches; EN = 1 enables decoding and switching |
| 19–26, NO1A–NO8A | Analog inputs A side | Bidirectional differential inputs paired with NO1B–NO8B; matched to NOx-B for common-mode rejection |
| 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 analog terminal for first half of selected differential pair (e.g., NO1A–COMA) |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports full analog swing from V− to V+ (e.g., −15V to +15V), eliminating level-shifting in wide-dynamic-range systems |
| Guaranteed flat on-resistance | ≤7Ω variation over entire signal range, ensuring consistent gain and linearity across input voltage extremes |
| 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 at +25°C, enabling use in thermally constrained or battery-powered avionics and portable test gear |
| TTL/CMOS logic compatibility | Inputs accept 0.8V/2.4V thresholds - interoperable with microcontrollers, FPGAs, and legacy logic without level shifters |
Applications
| Test Equipment | Military Radios |
|---|---|
Use Scenario: Automated test systems route multiple sensor or calibration signals to a shared DMM or oscilloscope input. IC Role / Device Role / Timing Role: Differential 2-of-8 analog multiplexer selecting matched signal pairs for noise-immune measurements. Use Value: <5Ω on-resistance match and <10pC charge injection minimize measurement drift and settling time errors. | Use Scenario: Secure voice/data transceivers require rapid, low-distortion switching between antenna feeds and RF front-end modules. IC Role / Device Role / Timing Role: High-isolation (−69dB), fast-switching (tTRANS < 250ns) analog mux managing dual-path signal routing. Use Value: >2000V ESD protection and −40°C to +85°C operation ensure reliability in field-deployed tactical radios. |
| Guidance and Control Systems | Sample-and-Hold Circuits |
Use Scenario: Inertial navigation units condition analog outputs from gyros and accelerometers before digitization. IC Role / Device Role / Timing Role: Precision differential mux delivering matched, low-leakage (INO(OFF) < 2.5nA @ +85°C) signal paths to ADC drivers. Use Value: Guaranteed on-resistance flatness (≤7Ω) maintains gain stability across temperature and signal amplitude. | Use Scenario: High-resolution data acquisition systems capture transient analog waveforms using switched-capacitor hold circuits. IC Role / Device Role / Timing Role: Low-charge-injection (<10pC), low-leakage analog switch isolating sampling capacitor during hold phase. Use Value: Minimizes droop and pedestal error, enabling ≥16-bit effective resolution in precision DAQ applications. |
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 electrical specs, but in 28-pin wide SO package (surface-mount, smaller footprint) | Better suited for space-constrained PCBs; lacks PLCC's mechanical robustness and thermal mass | Select MAX307EWI+ when board area is limited and reflow compatibility is prioritized over ruggedization |
| ADG507AKRZ | Higher on-resistance (170Ω typ), wider leakage (±20nA @ +85°C), no guaranteed RON match spec | Lower performance ceiling; acceptable only where precision matching and low glitch are non-critical | Choose ADG507AKRZ only if cost sensitivity outweighs need for <5Ω matching and <10pC charge injection |
Compared with MAX307EWI+, the MAX307EQI+ offers superior mechanical stability and thermal cycling endurance in PLCC; versus ADG507AKRZ, it delivers significantly tighter matching, lower leakage, and guaranteed flatness - making it essential for mil-aero and precision instrumentation where parametric consistency is non-negotiable.
Availability
MAX307EQI+ is available at Aetrix Electronics and suitable for test equipment, military radios, guidance and control systems, and sample-and-hold circuits requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX307EQI+ 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, automotive, and communications markets.
The MAX306/MAX307 product line was engineered for precision analog signal routing in mission-critical systems - emphasizing low distortion, channel matching, and robust operation across extreme temperatures and supply configurations.
FAQ
What is the operating temperature range of the MAX307EQI+?
The MAX307EQI+ is specified for operation from −40°C to +85°C, validated across this full industrial temperature range for parameters including on-resistance, leakage current, and switching speed. This makes the MAX307EQI+ suitable for deployment in avionics, vehicle-mounted radios, and outdoor test instrumentation where ambient conditions vary widely.
Does the MAX307EQI+ support single-supply operation?
Yes, the MAX307EQI+ supports single-supply operation from +5V to +30V. When used in single-supply mode, V− must be connected to ground. The device maintains rail-to-rail analog signal handling (0V to V+) and retains TTL/CMOS logic compatibility, enabling direct interfacing with microcontrollers and FPGAs without level-shifting circuitry.
Is the MAX307EQI+ pin-compatible with the DG407 or DG507A?
Yes, the MAX307EQI+ is a plug-in upgrade for the industry-standard DG407 and DG507A. It uses identical pinout, logic interface, and functional behavior - while improving on-resistance (<100Ω vs. ~150Ω), matching (<5Ω vs. unspecified), charge injection (<10pC vs. ~25pC), and ESD rating (>2000V vs. ~200V). No PCB changes are required for drop-in replacement.
What is the maximum analog signal range supported by the MAX307EQI+?
The MAX307EQI+ supports an analog signal range of ±15V under dual-supply conditions (V+ = +15V, V− = −15V) and 0V to +12V under single-supply conditions (V+ = +12V, V− = 0V). Signal voltages must remain within (V− − 2V) to (V+ + 2V) to avoid clamping; exceeding these limits risks damage or degraded performance.
How does the enable (EN) pin function on the MAX307EQI+?
The EN pin on the MAX307EQI+ is an active-high digital control that globally enables or disables all internal switches. When EN = 0V (logic low), all channels are open-circuited regardless of address inputs; when EN = 2.4V (logic high), the selected differential pair connects COMA/COMB to the corresponding NOxA/NOxB terminals. EN also affects supply current - I+ drops to ≤0.5mA when enabled with all inputs low.
MAX307EQI+ 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-PLCC (11.5x11.5)
MAX307EQI+ FAQ
1.How can I place an order for MAX307EQI+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX307EQI+ 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 MAX307EQI+ reliable?
The price and inventory of MAX307EQI+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX307EQI+ is usually 5 days.
3.What payment methods are accepted for MAX307EQI+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX307EQI+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX307EQI+?
MAX307EQI+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX307EQI+ 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 MAX307EQI+?
For technical support, including MAX307EQI+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX307EQI+ requirements.
6.How does Aetrix verify that MAX307EQI+ is sourced from the original manufacturer or authorized distributors?
All MAX307EQI+ 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 MAX307EQI+ meets industry standards.
7.What is the process for return or replacement of MAX307EQI+?
All MAX307EQI+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX307EQI+, 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 MAX307EQI+ part is unused and in its original packaging.
Return procedure for MAX307EQI+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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