My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX309EUE+
- Part No.:
- MAX309EUE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX309EUE+.pdf
- Description:
- IC SWITCH SP4TX2 100OHM 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,351
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
The MAX309EUE+ from Maxim Integrated is a precision differential 2-of-4 CMOS analog multiplexer designed for high-fidelity signal routing in demanding analog systems. It features <100Ω on-resistance, <5Ω channel-to-channel matching, <10pC charge injection, ±5V to ±20V bipolar or +5V to +30V single-supply operation, and rail-to-rail signal handling - enabling accurate switching in sample-and-hold circuits and military-grade communications equipment.
For engineers reviewing the MAX309EUE+ datasheet, MAX309EUE+ pinout, MAX309EUE+ application, or MAX309EUE+ equivalent, this device is evaluated for low-leakage, low-distortion analog path selection where channel matching, minimal charge kickback, and wide supply flexibility are critical in battery-operated and guidance systems.
Technical Context
The MAX309EUE+ implements a fully differential 4-channel × 2-path architecture with independent COMA/COMB outputs and dual NO1A–NO4A / NO1B–NO4B input banks. Its CMOS decode logic accepts A0/A1 address inputs and an active-low EN enable signal, supporting break-before-make switching with 115ns typical tON(EN) and 75ns tOFF(EN) under ±15V supplies.
It uses Maxim's 44V silicon-gate process to guarantee <20nA COM-off leakage at +85°C, <5nA NO-off leakage at +85°C, and flat on-resistance (≤7Ω variation) across ±10V analog signal range - ensuring consistent gain and linearity when routing differential sensor or audio signals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Configuration | Differential 2-of-4 analog multiplexer: selects one of four differential pairs to either COMA or COMB output |
| On-Resistance (RON) | <100Ω max - ensures minimal voltage drop and signal attenuation in precision measurement paths |
| RON Matching | <5Ω max between channels - preserves common-mode rejection and gain accuracy across selected paths |
| Charge Injection | <10pC - limits voltage glitch on sampled nodes, critical for high-resolution ADC front-ends |
| NO-Off Leakage | <5nA at +85°C - prevents DC error accumulation in high-impedance sample-and-hold hold capacitors |
| Analog Signal Range | ±10V with ±15V supplies - supports full-rail operation for industrial sensor interfaces and audio line-level signals |
| Supply Range | ±5V to ±20V (bipolar) or +5V to +30V (single) - enables flexible power architecture in mixed-signal embedded systems |
Pinout & Package
MAX309EUE+ is housed in a 16-pin TSSOP package (4.4mm × 5.0mm, 0.65mm pitch), optimized for space-constrained PCB layouts while maintaining thermal performance up to +85°C ambient.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0, A1 | Binary address inputs | Selects one of four differential channels (00→CH1, 01→CH2, 10→CH3, 11→CH4); TTL/CMOS compatible |
| EN | Active-low enable input | Disables all switches when high; enables decoding and switching when low - supports power-gating |
| NO1A–NO4A, NO1B–NO4B | Differential analog inputs (2×4) | Accept bidirectional analog signals; each pair (e.g., NO1A/NO1B) forms one differential channel |
| COMA, COMB | Differential analog outputs | Deliver selected differential signal; COMA and COMB must be routed as matched-length differential pair |
| V+, V− | Positive/negative supply rails | Support bipolar (±5V to ±20V) or single-supply (V− = GND) operation; substrate tied to V+ |
| GND | Ground reference | Logic ground; separate from analog signal ground in mixed-signal designs to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Operates with input signals spanning full V− to V+ range - eliminates level-shifting in ±15V op-amp systems |
| Guaranteed RON flatness | ≤7Ω variation over ±10V signal range - maintains consistent gain and THD across analog input span |
| ESD protection | >2000V HBM - enhances robustness during board assembly and field deployment in rugged environments |
| Low power consumption | <300µW typical - suitable for always-on monitoring circuits in battery-powered guidance and test equipment |
| Plug-in upgrade path | Direct functional replacement for DG409 and DG509A - allows legacy design refresh without layout change |
Applications
| Sample-and-Hold Circuits | Military Radios |
|---|---|
Use Scenario: Precision acquisition of RF IF signals prior to digitization in wideband receivers. IC Role / Device Role / Timing Role: Differential analog multiplexer selecting calibrated reference or antenna signal paths into a low-drift S/H amplifier. Use Value: <5Ω RON matching and <10pC charge injection minimize aperture error and maintain SFDR >85dB in 12-bit+ systems. |
Use Scenario: Antenna diversity switching and secure waveform routing in manpack and vehicular radios. IC Role / Device Role / Timing Role: High-isolation (–75dB off-isolation), low-leakage switch managing differential baseband I/Q paths under harsh EMI conditions. Use Value: <5nA NO-off leakage at +85°C prevents DC drift in encrypted voice signal chains; ±20V supply tolerance accommodates legacy power rails. |
| Automatic Test Equipment | Heads-Up Displays |
Use Scenario: Channel scanning of DUT sensor outputs (thermocouples, strain gauges) in multi-point calibration fixtures. IC Role / Device Role / Timing Role: Low-thermal-EMF, low-charge-injection multiplexer routing mV-level signals to a shared precision ADC. Use Value: <100Ω RON and ≤7Ω flatness ensure measurement repeatability across temperature; TSSOP package enables dense channel density on test head PCBs. |
Use Scenario: Dynamic routing of video sync and RGB signals between HUD processor and combiner optics driver stages. IC Role / Device Role / Timing Role: Fast-switching (250ns transition time), low-crosstalk (–92dB) analog mux preserving timing integrity of horizontal/vertical sync pulses. Use Value: 115ns enable turn-on ensures pixel-perfect alignment in real-time flight symbology overlays; rail-to-rail support handles 0–5V video swing without clipping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar differential analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG409BRUZ | 44V supply rating; higher RON (120Ω typ); no guaranteed RON matching spec | Lacks <5Ω matching and <10pC charge injection specs - less suitable for high-resolution S/H | Prefer MAX309EUE+ where channel matching and low glitch energy are required |
| TMUX1309PWR | Lower voltage rating (±5V max); 1.8V–5.5V logic; RON = 130Ω typ; no high-temp leakage data | Not rated for ±20V or +85°C operation - unsuitable for military radio or industrial test environments | MAX309EUE+ remains preferred for extended temp and high-voltage analog routing |
Compared with ADG409BRUZ and TMUX1309PWR, the MAX309EUE+ uniquely guarantees sub-5Ω channel matching, <10pC charge injection, and full ±20V operation - making it the only option qualified for precision differential switching in MIL-STD-810G environments and high-fidelity data acquisition.
Availability
MAX309EUE+ is available at Aetrix Electronics and suitable for automatic test equipment, military radios, heads-up displays, and sample-and-hold circuits requiring stable component supply across extended temperature and high-reliability production cycles.
Supply support for MAX309EUE+ 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 fabless semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.
The MAX309EUE+ belongs to Maxim's precision analog multiplexer product line, engineered for low-distortion, low-leakage signal routing in mission-critical systems where parameter consistency across temperature and voltage extremes is non-negotiable.
FAQ
What is the operating temperature range for the MAX309EUE+?
The MAX309EUE+ is specified for operation from –40°C to +85°C. This extended industrial temperature range is validated by 100% testing of leakage parameters at +85°C and correlation at +25°C, ensuring reliability in military radios, avionics, and outdoor test equipment where thermal cycling is severe.
Does the MAX309EUE+ support single-supply operation?
Yes, the MAX309EUE+ 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 signal handling and retains TTL/CMOS logic compatibility, making it ideal for portable instrumentation and battery-powered guidance systems.
How does the MAX309EUE+ differ from the MAX308 series?
The MAX309EUE+ is a differential 2-of-4 multiplexer with two independent COM outputs (COMA/COMB) and dual 4-channel NO banks, whereas the MAX308 is a single-ended 1-of-8 device with one COM output. The MAX309EUE+ provides inherent common-mode noise rejection and is optimized for balanced signal paths - critical in RF, audio, and precision sensor interfaces.
What is the maximum analog signal voltage the MAX309EUE+ can handle?
The MAX309EUE+ supports analog signals from V− to V+ - up to ±20V with bipolar supplies or 0V to +30V with single supply. Absolute maximum ratings allow V+ to V− differential up to 44V, but the usable linear signal range is ±10V with ±15V supplies, as confirmed by RON flatness and leakage specifications.
Is the MAX309EUE+ pin-compatible with industry-standard alternatives like the DG409?
The MAX309EUE+ is a plug-in upgrade for the DG409 and DG509A, sharing identical pinout, function, and logic interface in 16-pin packages including TSSOP. No PCB changes are required when replacing DG409-based designs - the MAX309EUE+ improves on leakage, charge injection, and supply flexibility while maintaining full backward compatibility.
MAX309EUE+ 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-TSSOP
MAX309EUE+ FAQ
1.How can I place an order for MAX309EUE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX309EUE+ 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 MAX309EUE+ reliable?
The price and inventory of MAX309EUE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX309EUE+ is usually 5 days.
3.What payment methods are accepted for MAX309EUE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX309EUE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX309EUE+?
MAX309EUE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX309EUE+ 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 MAX309EUE+?
For technical support, including MAX309EUE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX309EUE+ requirements.
6.How does Aetrix verify that MAX309EUE+ is sourced from the original manufacturer or authorized distributors?
All MAX309EUE+ 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 MAX309EUE+ meets industry standards.
7.What is the process for return or replacement of MAX309EUE+?
All MAX309EUE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX309EUE+, 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 MAX309EUE+ part is unused and in its original packaging.
Return procedure for MAX309EUE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX309EUE+ Tags
-
SN74LVC1G3157DBVR
Texas Instruments
-
SN74LVC1G66DBVR
Texas Instruments
-
SN74LVC1G66DCKR
Texas Instruments
-
SN74LVC1G3157DSFR
Texas Instruments
-
1P1G3157QDCKRQ1
Texas Instruments
-
SN74LVC2G66DCUR
Texas Instruments
-
SN74LV4052APWR
Texas Instruments
-
74HC4051D,653
Nexperia USA Inc.
-
SN74LV4051APWR
Texas Instruments
-
CD74HC4052PWR
Texas Instruments
-
CD74HC4051PWR
Texas Instruments
-
TS5A3166DBVR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
