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Analog Devices Inc./Maxim Integrated MAX309ESE+
- Part No.:
- MAX309ESE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX309ESE+.pdf
- Description:
- IC SWITCH SP4T X 2 100OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:183
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Product details
Overview
MAX309ESE+ from Maxim Integrated is a precision dual 4-channel differential analog multiplexer IC designed for high-fidelity signal routing in demanding analog systems. It features <100Ω on-resistance, <5Ω channel-to-channel matching, <10pC charge injection, and supports ±5V to ±20V bipolar or +5V to +30V single-supply operation - enabling accurate signal switching in test equipment and military-grade guidance systems.
For engineers reviewing the MAX309ESE+ datasheet, MAX309ESE+ pinout, MAX309ESE+ application, or MAX309ESE+ equivalent, key selection criteria include guaranteed on-resistance flatness (≤7Ω), low leakage (<5nA NO-off at +85°C), rail-to-rail signal handling, TTL/CMOS logic compatibility, and plug-in upgrade capability for DG409/DG509A.
Technical Context
The MAX309ESE+ implements a CMOS decode logic architecture with two independent 4-channel differential switch banks (COMA/NO1A–NO4A and COMB/NO1B–NO4B), each selected via A1/A0 address inputs and globally enabled by EN. Its silicon-gate process ensures matched switch characteristics and minimal charge injection across temperature.
It operates with true rail-to-rail analog signal ranges up to ±20V (bipolar) or 0V to +30V (single-supply), maintains sub-250ns transition time, and guarantees break-before-make timing to prevent signal shorting during channel changes - critical for sample-and-hold and audio routing integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance | <100Ω max - ensures minimal signal attenuation and voltage drop in precision measurement paths |
| On-Resistance Matching | <5Ω max between channels - enables accurate differential signal balancing and ratio-metric accuracy |
| Charge Injection | <10pC - reduces settling error and glitch energy in sample-and-hold and data acquisition circuits |
| NO-Off Leakage | <5nA at +85°C - preserves signal integrity in high-impedance sensor interfaces and battery-powered systems |
| Analog Signal Range | ±20V (bipolar) or 0V to +30V (single) - supports full-rail signal routing without clipping or distortion |
| Transition Time | <250ns - enables fast channel switching in automatic test equipment and real-time control loops |
| Supply Range | +5V to +30V or ±5V to ±20V - provides design flexibility across industrial, military, and communications platforms |
Pinout & Package
MAX309ESE+ is housed in a 16-pin narrow SOIC package (SO) with 1.27mm pitch, RoHS-compliant, and rated for -40°C to +85°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0, A1 | Address Inputs | Selects active channel pair (1–4) within each differential bank; TTL/CMOS-compatible logic thresholds |
| EN | Enable Input | Global enable/disable of both differential banks; low = all switches open, high = address decoding active |
| COMA, COMB | Analog Outputs | Differential common outputs - each connects to one NOx pair (e.g., COMA ↔ NO1A–NO4A) |
| NO1A–NO4A, NO1B–NO4B | Analog Inputs | Bidirectional differential channel terminals; support ±20V signal swing with low capacitance (≤3pF off-state) |
| V+, V- | Supply Rails | Accept bipolar (±5V to ±20V) or single-supply (V- = GND, V+ = +5V to +30V) configurations |
| GND | Ground Reference | Logic ground reference; electrically isolated from analog signal path but tied to substrate via V+ |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from V- to V+ without clipping - essential for full-scale sensor and audio signal routing |
| Guaranteed on-resistance flatness | ≤7Ω variation over full ±10V signal range - maintains consistent gain and linearity across input voltage span |
| ESD protection | >2000V HBM - enhances reliability in handling-sensitive environments like field-deployed military radios |
| Plug-in upgrade path | Direct functional and pinout replacement for DG409 and DG509A - eliminates PCB redesign in legacy system refreshes |
| Low power consumption | <300µW quiescent - extends battery life in portable test gear and heads-up display subsystems |
Applications
| Sample-and-Hold Circuits | Automatic Test Equipment |
|---|---|
Use Scenario: High-speed sampling of multi-sensor analog outputs in aerospace telemetry systems. IC Role / Device Role / Timing Role: Dual differential mux routes calibrated reference and sensor signals to a shared ADC input with matched path impedance. Use Value: <5Ω on-resistance matching and <10pC charge injection minimize aperture error and maintain 16-bit effective resolution. | Use Scenario: Channelized stimulus/response routing in modular ATE rack systems with mixed-voltage DUTs. IC Role / Device Role / Timing Role: Enables parallel testing of four differential device-under-test ports using a single precision source-measure unit. Use Value: ±20V analog range and <250ns transition time allow rapid reconfiguration between DUTs without signal degradation. |
| Military Radios | Audio Signal Routing |
Use Scenario: Antenna diversity switching and IF signal path selection in secure HF/VHF transceivers operating across extended temperature. IC Role / Device Role / Timing Role: Differential mux selects between redundant RF front-end chains while preserving signal symmetry and noise rejection. Use Value: -40°C to +85°C rating, <5nA NO-off leakage at +85°C, and >2000V ESD ensure operational continuity in harsh field conditions. | Use Scenario: Dynamic routing of balanced line-level audio between DSP, codec, and output amplifiers in professional mixing consoles. IC Role / Device Role / Timing Role: Dual 4-channel configuration handles left/right stereo pairs and auxiliary monitor feeds with simultaneous switching. Use Value: Low crosstalk (-92dB), low off-capacitance (3pF), and rail-to-rail swing preserve wideband fidelity and phase coherence. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX309EPE+ | Same die and specs, but in 16-pin plastic DIP package - larger footprint, higher thermal resistance | Suitable for prototyping or through-hole production where SOIC reflow is unavailable | Select MAX309EPE+ only when manual assembly or socket-based validation is required |
| ADG409BRUZ | 4-channel differential CMOS mux; 75Ω on-resistance, 25pC charge injection, -40°C to +85°C, TSSOP-16 | Higher on-resistance and charge injection limit use in high-precision sample-and-hold or low-leakage sensor front-ends | Choose ADG409BRUZ only if cost sensitivity outweighs need for sub-10pC charge injection and <5Ω matching |
Compared with MAX309ESE+, MAX309EPE+ offers identical electrical performance in a through-hole package, while ADG409BRUZ trades precision (higher RON, higher Q) for broader vendor availability - making MAX309ESE+ optimal for space-constrained, high-fidelity designs requiring guaranteed matching and low glitch energy.
Availability
MAX309ESE+ is available at Aetrix Electronics and suitable for automatic test equipment, military radio subsystems, sample-and-hold circuits, and professional audio signal routing requiring stable component supply and long-term obsolescence management.
Supply support for MAX309ESE+ 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 MAX308/MAX309 product line was engineered for precision analog signal routing in mission-critical systems - emphasizing low distortion, guaranteed parameter matching, and robust operation across extreme temperatures and supply configurations.
FAQ
What is the maximum analog signal voltage range supported by the MAX309ESE+?
The MAX309ESE+ supports an analog signal range of ±20V with bipolar supplies (V+ = +20V, V- = -20V) or 0V to +30V with single-supply operation (V- = GND). This rail-to-rail capability allows full-scale signal handling without clipping, making MAX309ESE+ suitable for high-dynamic-range applications such as military radio IF stages and precision instrumentation front-ends.
Does the MAX309ESE+ require external pull-up resistors on its address or enable pins?
No, the MAX309ESE+ does not require external pull-up resistors. Its CMOS logic inputs (A0, A1, EN) have TTL/CMOS-compatible thresholds (VAL ≤ 0.8V, VAH ≥ 2.4V) and exhibit low input current (±1.0µA max), allowing direct interfacing with microcontrollers and FPGAs. The internal structure ensures reliable logic recognition without external biasing - a key feature confirmed in the MAX309ESE+ datasheet's Electrical Characteristics table.
Can the MAX309ESE+ be used as a direct replacement for the DG409 in existing designs?
Yes, the MAX309ESE+ is explicitly designed as a plug-in upgrade for the DG409 and DG509A. It shares identical pinout, logic interface, and functional behavior - including dual 4-channel differential switching, address decoding, and enable control. No PCB changes are required, and MAX309ESE+ improves upon the DG409 with lower on-resistance (<100Ω vs. ~120Ω), tighter matching (<5Ω vs. ~10Ω), and enhanced ESD protection (>2000V vs. ~200V).
What is the guaranteed on-resistance matching specification for the MAX309ESE+ across temperature?
The MAX309ESE+ guarantees on-resistance matching of <5Ω maximum between any two channels across its full operating temperature range of -40°C to +85°C. This specification is tested and guaranteed per the datasheet's Electrical Characteristics table under "∆RON - On-Resistance Matching Between Channels", ensuring consistent differential signal integrity even in thermally variable environments like avionics bays or outdoor communications shelters.
How does the charge injection performance of the MAX309ESE+ impact sample-and-hold circuit accuracy?
The MAX309ESE+ guarantees charge injection of <10pC, directly limiting the voltage glitch injected into a sample-and-hold capacitor during channel switching. For example, with a 1nF hold capacitor, this yields <10mV step error - enabling sub-12-bit accuracy without additional correction. This low Q value, combined with <5Ω matching, makes MAX309ESE+ ideal for high-resolution data acquisition where aperture uncertainty must be minimized.
MAX309ESE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SP4T
- Multiplexer/Demultiplexer Circuit:
- 4:1
- 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±):
- ±5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 150ns, 150ns
- -3db Bandwidth:
- -
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 3pF, 26pF
- Current - Leakage (IS(off)) (Max):
- 750pA
- Crosstalk:
- -92dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MAX309ESE+ FAQ
1.How can I place an order for MAX309ESE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX309ESE+ 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 MAX309ESE+ reliable?
The price and inventory of MAX309ESE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX309ESE+ is usually 5 days.
3.What payment methods are accepted for MAX309ESE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX309ESE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX309ESE+?
MAX309ESE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX309ESE+ 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 MAX309ESE+?
For technical support, including MAX309ESE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX309ESE+ requirements.
6.How does Aetrix verify that MAX309ESE+ is sourced from the original manufacturer or authorized distributors?
All MAX309ESE+ 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 MAX309ESE+ meets industry standards.
7.What is the process for return or replacement of MAX309ESE+?
All MAX309ESE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX309ESE+, 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 MAX309ESE+ part is unused and in its original packaging.
Return procedure for MAX309ESE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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