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Analog Devices Inc./Maxim Integrated MAX312LCSE+T
- Part No.:
- MAX312LCSE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX312LCSE+T.pdf
- Description:
- IC SWITCH SPST-NCX4 10OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,448
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Product details
Overview
MAX312LCSE+T from Maxim Integrated is a quad, normally closed (NC), single-pole/single-throw (SPST) analog switch IC designed for precision signal routing in ±15V or +12V systems. It delivers 10Ω max on-resistance, 1.5Ω max on-resistance matching between channels, and +3V logic-compatible inputs (VIH = 2.0V, VIL = 0.8V), enabling direct interface with low-voltage microcontrollers in test equipment and audio routing applications.
For engineers reviewing the MAX312LCSE+T datasheet, MAX312LCSE+T pinout, MAX312LCSE+T application, or MAX312LCSE+T equivalent, this page provides verified electrical specifications, SO package terminal mapping, rail-to-rail analog signal handling capability, dual- and single-supply operating ranges (+4.5V to +36V or ±4.5V to ±20V), and confirmed alternative options for SPST analog switching designs.
Technical Context
The MAX312LCSE+T implements four independent NC analog switches using CMOS process technology, supporting bidirectional conduction with guaranteed RON flatness ≤2Ω over its full analog signal range. Its logic inputs tolerate +3V thresholds while operating from wide analog supply rails, eliminating need for level-shifting circuitry in mixed-voltage systems.
It features rail-to-rail signal handling, <2.5nA off-leakage at +85°C, and >96dB crosstalk at 20kHz - critical for high-fidelity audio and precision data-acquisition signal paths where channel isolation and minimal charge injection (±30pC) are required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 10Ω max - ensures minimal voltage drop and signal attenuation in precision analog paths up to ±15V. |
| RON Matching | 1.5Ω max between channels - enables matched gain/attenuation across multi-channel routing without calibration. |
| Analog Signal Range | VCOM, VNC: V− to V+ - supports true rail-to-rail input/output swing with no dead zones. |
| Logic Compatibility | +3V logic: VIH = 2.0V, VIL = 0.8V - interfaces directly with 3.3V microcontrollers without external translators. |
| Supply Range | +4.5V to +36V (single) or ±4.5V to ±20V (dual) - accommodates industrial, test, and telecom power architectures. |
| Off-Leakage Current | ±2.5nA at +85°C - preserves accuracy in high-impedance sample-and-hold and sensor front-end circuits. |
| Crosstalk | >96dB at 20kHz - prevents audible interference in stereo/multi-channel audio signal routing. |
Pinout & Package
MAX312LCSE+T is housed in a 16-pin narrow SO (Small Outline) package per JEDEC MS-012, with standard 1.27mm pitch and gull-wing leads. Thermal performance supports 696mW continuous dissipation at +70°C (derated 8.70mW/°C above).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 9, 16 | IN1–IN4 | CMOS logic inputs controlling switch state; active-low logic for NC function (low = closed). |
| 2, 7, 10, 15 | COM1–COM4 | Analog common terminals - bidirectional signal path endpoints connected to load or source. |
| 3, 6, 11, 14 | NC1–NC4 | Normally closed analog terminals - conduct to COM when IN = low; open when IN = high. |
| 4 | V− | Negative analog supply rail; connect to GND for single-supply operation (+4.5V to +36V). |
| 5 | GND | Digital and analog reference ground - separate from V− but tied internally in single-supply mode. |
| 12 | N.C. | No internal connection - must be left unconnected; not a test pad or thermal pad. |
| 13 | V+ | Positive analog supply rail - sets upper limit of analog signal range and powers internal logic. |
Key Features
| Feature | Design Value |
|---|---|
| +3V logic compatibility | VIH = 2.0V / VIL = 0.8V - eliminates level shifters when interfacing with 3.3V FPGAs or MCUs. |
| Guaranteed RON flatness | ≤2Ω over full signal range - maintains consistent gain/attenuation across audio or sensor signal amplitudes. |
| Rail-to-rail signal handling | VCOM/VNC = V− to V+ - enables full utilization of supply rails in ±15V instrumentation or +12V telecom systems. |
| Low charge injection | ±30pC - minimizes voltage glitch in sample-and-hold and multiplexed ADC front-ends. |
| Pin compatibility | Drop-in replacement for MAX312, DG411 - simplifies legacy design upgrades without PCB revision. |
Applications
| Audio Signal Routing | Test Equipment Multiplexing |
|---|---|
|
Use Scenario: Switching line-level stereo signals between multiple DAC outputs and amplifier inputs in professional audio mixers. IC Role / Device Role / Timing Role: Quad NC SPST switch providing low-distortion, bidirectional analog path selection with <0.001% THD at 1kHz. Use Value: 10Ω RON and 1.5Ω matching preserve channel balance; >96dB crosstalk prevents inter-channel bleed in multi-track monitoring. |
Use Scenario: Routing DUT signals to multiple measurement instruments (oscilloscope, spectrum analyzer, DMM) in automated test systems. IC Role / Device Role / Timing Role: Precision analog switch enabling fast, repeatable signal path configuration under microcontroller control. Use Value: 275ns max tON supports rapid test sequencing; ±2.5nA leakage ensures accurate DC/low-frequency measurements. |
| Data-Acquisition Systems | Avionics Signal Conditioning |
|
Use Scenario: Multiplexing sensor outputs (thermocouples, strain gauges) into a shared ADC channel in industrial PLCs. IC Role / Device Role / Timing Role: Low-leakage, rail-to-rail analog switch isolating high-impedance sources during channel scanning. Use Value: 2.5nA max off-leakage at +85°C prevents measurement drift; RON flatness ≤2Ω ensures consistent scaling across temperature. |
Use Scenario: Selecting between redundant flight control sensor inputs in airborne computing modules requiring DO-254 compliance. IC Role / Device Role / Timing Role: Robust analog switch operating from ±15V supplies with guaranteed parametric performance over −40°C to +85°C. Use Value: Dual-supply support (±4.5V to ±20V) matches avionics power standards; 150°C max junction temperature meets extended reliability requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPST analog switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DG411DN | Higher RON (35Ω typ), no +3V logic compatibility (VIH = 4.5V min), same SO-16 footprint. | Requires 5V logic interface; less suitable for 3.3V systems or low-distortion audio. | Select DG411DN only if existing 5V control architecture exists and RON tolerance >30Ω is acceptable. |
| MAX312LESE | Identical functionality and pinout; extended temperature range (−40°C to +85°C) vs. MAX312LCSE+T (0°C to +70°C). | Suitable for automotive, industrial, or outdoor deployments requiring wider thermal margin. | Choose MAX312LESE when operating ambient exceeds +70°C or storage below 0°C is required. |
Compared with DG411DN, MAX312LCSE+T offers lower on-resistance and native 3.3V logic compatibility; compared with MAX312LESE, it trades extended temperature rating for cost optimization in commercial-grade applications.
Availability
MAX312LCSE+T is available at Aetrix Electronics and suitable for test equipment, communication systems, and audio signal routing requiring stable component supply, long-term manufacturability, and consistent parametric performance across production lots.
Supply support for MAX312LCSE+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 semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and consumer applications.
The MAX312L family was designed specifically for precision analog signal routing in environments demanding low on-resistance, tight channel matching, and robust dual-supply operation - targeting test instrumentation, telecom infrastructure, and high-fidelity audio systems.
FAQ
What is the maximum supply voltage for MAX312LCSE+T in dual-supply mode?
The MAX312LCSE+T supports dual-supply operation from ±4.5V to ±20V. Absolute maximum ratings allow V+ up to +44V and V− down to −44V, but functional operation is specified only within the ±4.5V to ±20V range. Exceeding ±20V may cause parametric degradation or reliability risk despite surviving short-term stress.
Does MAX312LCSE+T support single-supply operation, and what is the minimum voltage?
Yes, MAX312LCSE+T operates from a single +4.5V to +36V supply. In this mode, V− is connected to GND, and analog signals swing from 0V to V+. The +4.5V minimum ensures proper internal biasing and guarantees RON ≤35Ω and leakage ≤±2.5nA across temperature.
Is MAX312LCSE+T pin-compatible with the original MAX312 series?
Yes, MAX312LCSE+T is pin-compatible with MAX312, MAX313, and MAX314 in SO-16 packages. It retains identical pin functions and layout, enabling drop-in replacement without PCB modification - though logic polarity remains inverted for NC/NO behavior per device variant.
What is the typical on-resistance variation over temperature for MAX312LCSE+T?
At V+ = +15V and V− = −15V, RON varies from ~8Ω at −40°C to ~12Ω at +85°C (typical). The datasheet guarantees ≤15Ω max across the full 0°C to +70°C operating range, ensuring predictable insertion loss in temperature-critical signal chains.
Can MAX312LCSE+T handle AC-coupled audio signals without distortion?
Yes - MAX312LCSE+T exhibits <0.001% THD at 1kHz with 5VRMS signals into 600Ω loads. Its low RON, flatness ≤2Ω, and rail-to-rail capability minimize harmonic generation and amplitude-dependent nonlinearity, making it suitable for line-level and headphone driver signal routing.
MAX312LCSE+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 ~ 36V
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MAX312LCSE+T FAQ
1.How can I place an order for MAX312LCSE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX312LCSE+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 MAX312LCSE+T reliable?
The price and inventory of MAX312LCSE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX312LCSE+T is usually 5 days.
3.What payment methods are accepted for MAX312LCSE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX312LCSE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX312LCSE+T?
MAX312LCSE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX312LCSE+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 MAX312LCSE+T?
For technical support, including MAX312LCSE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX312LCSE+T requirements.
6.How does Aetrix verify that MAX312LCSE+T is sourced from the original manufacturer or authorized distributors?
All MAX312LCSE+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 MAX312LCSE+T meets industry standards.
7.What is the process for return or replacement of MAX312LCSE+T?
All MAX312LCSE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX312LCSE+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 MAX312LCSE+T part is unused and in its original packaging.
Return procedure for MAX312LCSE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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