Analog Devices Inc./Maxim Integrated MAX312EUE+T
- Part No.:
- MAX312EUE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX312EUE+T.pdf
- Description:
- IC SW SPST-NCX4 10OHM 16TSSOP
- Quantity:
- Payment:

- Shipping:

Inventory:4,825
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Product details
Overview
MAX312EUE+T from Maxim Integrated is a quad, single-pole/single-throw (SPST), normally closed (NC) CMOS analog switch optimized for precision signal routing in bipolar and single-supply systems. It delivers 6.5Ω typical on-resistance, 1.5Ω max on-resistance matching between channels, and rail-to-rail signal handling from ±4.5V to ±20V dual supplies or +4.5V to +30V single supply-enabling low-distortion audio routing and high-fidelity data acquisition.
For engineers reviewing the MAX312EUE+T datasheet, MAX312EUE+T pinout, MAX312EUE+T application, or MAX312EUE+T equivalent, key selection criteria include guaranteed RON flatness (≤2Ω), <2.5nA off-leakage at +85°C, >96dB crosstalk at 20kHz, ESD tolerance >2000V per Method 3015.7, and TSSOP-16 packaging for space-constrained PCB layouts.
Technical Context
The MAX312EUE+T implements a fully complementary CMOS switch architecture with matched P- and N-channel devices per channel, enabling symmetrical conduction and minimal charge injection (±30pC). Its logic interface accepts TTL/CMOS-compatible inputs referenced to VL (2.4V high, 0.8V low) independent of analog supply rails.
Designed for operation across -40°C to +85°C, it maintains ≤10Ω max on-resistance and ≤1.5Ω channel-to-channel RON match over full temperature and signal range (±10V), with guaranteed break-before-make timing only in the MAX314 variant-not applicable to MAX312EUE+T.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 6.5Ω typical, ≤10Ω max - ensures minimal signal attenuation and voltage drop in precision analog paths |
| RON Match Between Channels | ≤1.5Ω max - critical for matched gain/phase in differential or multi-channel signal routing |
| Analog Signal Range | ±10V (dual supply), 0V to V+ (single supply) - supports rail-to-rail input/output without clipping |
| Off-Leakage Current | ±2.5nA at +85°C - preserves accuracy in high-impedance sample-and-hold or sensor front-ends |
| Crosstalk | >96dB at 20kHz - prevents audible interference in multi-channel audio switching applications |
| ESD Protection | >2000V per Method 3015.7 - enhances robustness during board handling and system integration |
| Supply Range | +4.5V to +30V (single), ±4.5V to ±20V (dual) - enables flexible power architecture in test and avionics systems |
Pinout & Package
MAX312EUE+T is housed in a 16-pin TSSOP package (4.4mm × 5.0mm, 0.65mm pitch) with exposed pad for thermal enhancement. Pin numbering follows standard JEDEC TSSOP outline MS012.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 9, 16 | IN1–IN4 | Logic control inputs; active-high enables NC path (logic '0' = ON for MAX312) |
| 2, 7, 10, 15 | COM1–COM4 | Analog common terminals - bidirectional signal path connection points |
| 3, 6, 11, 14 | NC1–NC4 | Normally closed analog terminals - conduct to COM when IN = 0V |
| 4 | V+ | Positive analog supply - sets upper rail for analog signal range |
| 5 | GND | Logic ground reference - separate from analog return in mixed-signal designs |
| 12 | V- | Negative analog supply - required for bipolar operation; tie to GND for single supply |
| 13 | VL | Logic supply voltage - decouples logic threshold from analog rails (typically 5V) |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-Rail® Signal Handling | Supports analog signals spanning full V+ to V− range without distortion or clipping |
| Guaranteed RON Flatness | ≤2Ω variation over ±10V signal range - preserves linearity in audio and instrumentation |
| Low Charge Injection | ±30pC max - minimizes voltage glitch in sample-and-hold and multiplexed ADC front-ends |
| Pin Compatibility | Direct replacement for DG411 - simplifies legacy design upgrades without layout change |
| High Off Isolation | ≥65dB at 1MHz - suppresses signal coupling between inactive channels in dense routing |
Applications
| Audio Signal Routing | Test Equipment Multiplexing |
|---|---|
|
Use Scenario: Switching line-level stereo signals between multiple sources and outputs in professional audio mixers. IC Role / Device Role / Timing Role: Quad SPST NC switch providing silent, pop-free channel selection with matched RON. Use Value: 6.5Ω RON and >96dB crosstalk prevent level mismatch and inter-channel bleed at 20kHz. |
Use Scenario: Routing DUT signals to multiple measurement instruments (DMM, scope, spectrum analyzer) in automated test systems. IC Role / Device Role / Timing Role: Precision analog path selector with low leakage and stable RON across temperature. Use Value: ±2.5nA off-leakage at +85°C ensures measurement integrity in high-impedance probe circuits. |
| Data Acquisition Front-End | Avionics Signal Conditioning |
|
Use Scenario: Multiplexing sensor outputs (thermocouple, RTD, strain gauge) into a shared ADC channel. IC Role / Device Role / Timing Role: Low-charge-injection, NC-configured switch minimizing hold-step error in S/H circuits. Use Value: ±30pC charge injection and ≤1.5Ω RON match reduce differential nonlinearity in 16-bit+ systems. |
Use Scenario: Selecting between redundant flight control sensors (e.g., air data modules) in DO-254-compliant systems. IC Role / Device Role / Timing Role: Robust analog switch operating from -40°C to +85°C with ESD-hardened I/O. Use Value: >2000V ESD rating and guaranteed parametric performance over extended temperature ensure field reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX313EUE+T | Normally open (NO) configuration vs. MAX312EUE+T's NC; identical RON, leakage, and package | Required where default-open safety state is mandated (e.g., fail-safe power gating) | Select MAX313EUE+T when circuit requires de-energized default path; otherwise MAX312EUE+T preferred for default-closed signal continuity |
| ADG411BRUZ | Higher RON (35Ω typ), wider temp range (−40°C to +125°C), same TSSOP-16 footprint | Better suited for high-temp industrial environments but sacrifices signal fidelity in audio/data acquisition | Choose ADG411BRUZ only if extended temperature compliance outweighs need for low RON and low distortion |
Compared with MAX313EUE+T (NO variant) and ADG411BRUZ (higher RON, wider temp range), MAX312EUE+T uniquely balances ultra-low on-resistance, tight channel matching, and audio-grade crosstalk-making it optimal for precision signal routing where default-closed behavior and signal integrity are primary requirements.
Availability
MAX312EUE+T is available at Aetrix Electronics and suitable for audio signal routing, test equipment multiplexing, and data acquisition systems requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for MAX312EUE+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) is a fabless semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.
The MAX312/MAX313/MAX314 family was designed specifically for low-distortion, low-leakage analog signal switching in test, measurement, and avionics systems-emphasizing RON matching, rail-to-rail operation, and robust ESD tolerance.
FAQ
What is the maximum analog signal voltage range supported by MAX312EUE+T?
MAX312EUE+T supports an analog signal range of ±10V when operated from dual supplies (±4.5V to ±20V), or 0V to V+ when used with a single supply (+4.5V to +30V). This rail-to-rail capability allows full utilization of the supply rails without signal clipping, making it suitable for high-dynamic-range applications such as audio routing and precision instrumentation.
Is MAX312EUE+T pin-compatible with industry-standard analog switches?
Yes, MAX312EUE+T is pin-compatible with the DG411 analog switch. This compatibility enables drop-in replacement in existing designs without PCB layout changes, preserving signal integrity while upgrading to lower on-resistance (6.5Ω vs. DG411's ~35Ω) and improved temperature stability.
How does the normally closed (NC) configuration of MAX312EUE+T affect system behavior during power loss?
The NC configuration of MAX312EUE+T ensures that analog paths remain conductive when logic inputs are unpowered or at logic low (0V). This provides fail-safe continuity in critical signal chains-such as sensor monitoring or emergency audio bypass-without requiring external pull-up circuitry or auxiliary power.
What is the guaranteed on-resistance matching between channels for MAX312EUE+T?
MAX312EUE+T guarantees ≤1.5Ω maximum on-resistance (RON) matching between any two channels across the full operating temperature range (−40°C to +85°C) and signal range (±10V). This tight matching is essential for maintaining amplitude and phase coherence in differential or multi-path analog systems.
Does MAX312EUE+T require a separate logic supply voltage (VL)?
Yes, MAX312EUE+T requires a dedicated logic supply (VL) pin, typically tied to +5V. VL establishes the logic threshold independently of analog supplies (V+, V−), allowing reliable switching control even when analog rails operate at extreme voltages-critical for mixed-voltage system interoperability.
MAX312EUE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 10Ohm
- Channel-to-Channel Matching (ΔRon):
- 300mOhm
- Voltage - Supply, Single (V+):
- 4.5V ~ 30V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 225ns, 185ns
- -3db Bandwidth:
- -
- Charge Injection:
- 20pC
- Channel Capacitance (CS(off), CD(off)):
- 15pF, 15pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -85dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
MAX312EUE+T FAQ
1.How can I place an order for MAX312EUE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX312EUE+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 MAX312EUE+T reliable?
The price and inventory of MAX312EUE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX312EUE+T is usually 5 days.
3.What payment methods are accepted for MAX312EUE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX312EUE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX312EUE+T?
MAX312EUE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX312EUE+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 MAX312EUE+T?
For technical support, including MAX312EUE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX312EUE+T requirements.
6.How does Aetrix verify that MAX312EUE+T is sourced from the original manufacturer or authorized distributors?
All MAX312EUE+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 MAX312EUE+T meets industry standards.
7.What is the process for return or replacement of MAX312EUE+T?
All MAX312EUE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX312EUE+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 MAX312EUE+T part is unused and in its original packaging.
Return procedure for MAX312EUE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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