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Analog Devices Inc./Maxim Integrated MAX312CSE+T
- Part No.:
- MAX312CSE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX312CSE+T.pdf
- Description:
- IC SWITCH SPST-NCX4 10OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,969
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Product details
Overview
MAX312CSE+T from Maxim Integrated is a quad, normally closed (NC), single-pole/single-throw (SPST) 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 switching and high-fidelity data acquisition.
For engineers reviewing the MAX312CSE+T datasheet, MAX312CSE+T pinout, MAX312CSE+T application, or MAX312CSE+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 compatibility with DG411/DG412/DG413 footprints.
Technical Context
The MAX312CSE+T implements a fully complementary CMOS transmission-gate architecture with matched P- and N-channel devices per channel, ensuring 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.
It supports true rail-to-rail analog signal ranges: VCOM, VNC operate from V− to V+, with internal clamping diodes limiting overvoltage transients. Switching performance is characterized across temperature (0°C to +70°C for C-grade) and supply extremes, with turn-on/off times ≤225ns (dual-supply) and ≤425ns (single-supply) at VCOM = ±10V or 8V respectively.
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 Matching | ≤1.5Ω max between channels - critical for matched gain/phase in multi-channel instrumentation and balanced audio routing. |
| Analog Signal Range | ±4.5V to ±20V (dual), or 0V to +30V (single) - supports industrial sensor interfaces and wide-dynamic-range test equipment. |
| Off-Leakage Current | ±2.5nA max at +85°C - preserves accuracy in high-impedance sample-and-hold and sensor front-ends. |
| Crosstalk | >96dB at 20kHz - prevents audible interference in stereo/multi-channel audio signal routing. |
| ESD Protection | >2000V per Method 3015.7 - enhances robustness during board handling and system integration. |
| Charge Injection | ±30pC max - minimizes voltage glitch on sampled nodes in data acquisition systems. |
Pinout & Package
MAX312CSE+T is housed in a 16-pin narrow SOIC (Small Outline Integrated Circuit) package, 3.9mm width, with standard 1.27mm pitch. Pin 1 is marked by a beveled corner or dot; the package is RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 9, 16 | IN1–IN4 | Logic control inputs: active-low for MAX312 (NC); logic level referenced to VL, not V+ or V−. |
| 2, 7, 10, 15 | COM1–COM4 | Analog common terminals: bidirectional current path; connects to NC terminal when IN = logic low. |
| 3, 6, 11, 14 | NC1–NC4 | Normally closed analog terminals: conduct to COM when IN = logic low; open when IN = logic high. |
| 4 | V− | Negative analog supply input; connect to GND for single-supply operation (+4.5V to +30V). |
| 5 | GND | Logic ground reference for VL and digital inputs; separate from analog return paths in mixed-signal layouts. |
| 12 | VL | Logic supply input: sets logic threshold (2.4V/0.8V); may be tied to V+ or external 5V source. |
| 13 | V+ | Positive analog supply input; defines upper rail for analog signal range and internal biasing. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-Rail® Signal Handling | Supports analog signals spanning full V− to V+ range without clipping or distortion - essential for ±10V industrial I/O and audio line-level routing. |
| Guaranteed RON Flatness | ≤2Ω variation over entire signal range - maintains consistent gain and THD across amplitude, critical for low-distortion audio applications. |
| Pin Compatibility | Direct footprint replacement for DG411/DG412/DG413 - enables drop-in upgrade to lower RON, better matching, and enhanced ESD robustness. |
| Low Charge Injection | ±30pC max - reduces settling error and hold-step artifacts in precision sample-and-hold circuits and ADC front-ends. |
| High Off Isolation | −65dB at 1MHz - suppresses crosstalk between inactive channels in dense multiplexed systems like automated test equipment. |
Applications
| Audio Signal Routing | Test Equipment Multiplexing |
|---|---|
|
Use Scenario: Switching stereo left/right channels, microphone preamp outputs, or DAC outputs in professional audio mixers and studio interfaces. IC Role / Device Role / Timing Role: Quad SPST NC switch providing silent, glitch-free signal path selection with minimal THD (<−100dB at 1kHz). Use Value: 6.5Ω RON and ≤2Ω RON flatness preserve signal integrity; >96dB crosstalk prevents channel bleed in multi-track recording. |
Use Scenario: Multiplexing sensor inputs, calibration references, or DUT connections in automated benchtop test systems and PXI modules. IC Role / Device Role / Timing Role: Precision analog switch enabling sequential sampling of up to four high-impedance sources with sub-nA leakage. Use Value: ±2.5nA off-leakage at +85°C ensures measurement stability; 1.5Ω RON matching eliminates channel-to-channel gain error. |
| Avionics Signal Conditioning | Sample-and-Hold Circuits |
|
Use Scenario: Routing analog sensor data (e.g., pressure, temperature) from multiple aircraft subsystems to centralized A/D converters. IC Role / Device Role / Timing Role: Robust NC switch operating over −55°C to +125°C (M-grade variants), with ESD >2000V for harsh electromagnetic environments. Use Value: Dual-supply support (±4.5V to ±20V) accommodates legacy avionics rails; rail-to-rail operation avoids signal clipping in wide-dynamic-range sensors. |
Use Scenario: Sampling analog waveforms in high-resolution data acquisition systems before digitization by precision ADCs. IC Role / Device Role / Timing Role: Low-charge-injection (±30pC) NC switch isolating hold capacitor from input during acquisition phase. Use Value: Minimal charge kick ensures fast settling and low aperture error; 10Ω max RON limits RC time constant with typical 10–100pF hold capacitors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX313CSE+T | Quad SPST NO (normally open) configuration vs. MAX312CSE+T's NC topology; identical RON, matching, and supply specs. | Suitable where default-open signal path is required (e.g., safety-critical disconnect, power-up isolation). | Select MAX313CSE+T when fail-safe open state is mandatory; pinout and timing match MAX312CSE+T exactly. |
| DG411DN | Higher typical RON (35Ω), no guaranteed RON matching or flatness spec, lower ESD rating (1000V), no rail-to-rail support. | Limited to lower-precision, lower-frequency applications where cost is prioritized over matching or distortion. | Choose DG411DN only for legacy designs or cost-sensitive non-critical paths; MAX312CSE+T offers measurable THD and crosstalk improvement. |
Compared with MAX313CSE+T, the MAX312CSE+T provides fail-safe continuity on power-up; compared with DG411DN, it delivers 5× lower RON, guaranteed matching, and superior high-frequency isolation - directly improving measurement fidelity and audio clarity.
Availability
MAX312CSE+T is available at Aetrix Electronics and suitable for test equipment, avionics signal conditioning, and audio routing applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX312CSE+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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and consumer markets.
The MAX312/MAX313/MAX314 family was designed specifically for precision analog signal routing where low on-resistance, tight channel matching, and rail-to-rail operation are essential - targeting test & measurement, audio infrastructure, and high-reliability embedded systems.
FAQ
What is the operating temperature range for MAX312CSE+T?
The MAX312CSE+T is rated for commercial temperature operation from 0°C to +70°C. This grade is indicated by the 'C' suffix in the part number and is validated per the Absolute Maximum Ratings table in the datasheet. For extended temperature ranges, consider MAX312ESE+T (−40°C to +85°C) or MAX312MJE (−55°C to +125°C).
Does MAX312CSE+T support single-supply operation?
Yes, MAX312CSE+T supports single-supply operation from +4.5V to +30V. In this mode, connect V− to GND and ensure VL is supplied at a valid logic level (typically 5V). The analog signal range extends from 0V to V+, maintaining rail-to-rail functionality without performance degradation.
How does the normally closed (NC) configuration of MAX312CSE+T affect system behavior at power-up?
The MAX312CSE+T defaults to closed (conducting) when all IN pins are at logic low or floating (due to internal pull-downs). At power-up, if control logic is unasserted, the NC switches remain closed - providing inherent continuity for fail-safe signal paths. This behavior is confirmed in the truth tables and functional diagrams of the MAX312 datasheet.
Can MAX312CSE+T replace DG411 in an existing design without layout changes?
Yes, MAX312CSE+T is pin-compatible with DG411 in the 16-pin SOIC package and shares identical pin functions and spacing. No PCB modifications are required. However, verify that the lower RON and higher bandwidth do not introduce unintended signal integrity effects in your specific layout and load conditions.
What is the maximum analog signal frequency supported by MAX312CSE+T?
While the MAX312CSE+T exhibits usable on-response up to >100MHz (−2dB loss), its off-isolation degrades above 5MHz due to parasitic capacitance. For reliable high-frequency switching (>5MHz), proper RF layout practices are essential. For fully characterized RF performance up to 160MHz, Maxim recommends the MAX440/MAX441/MAX442 series instead of MAX312CSE+T.
MAX312CSE+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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MAX312CSE+T FAQ
1.How can I place an order for MAX312CSE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX312CSE+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 MAX312CSE+T reliable?
The price and inventory of MAX312CSE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX312CSE+T is usually 5 days.
3.What payment methods are accepted for MAX312CSE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX312CSE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX312CSE+T?
MAX312CSE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX312CSE+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 MAX312CSE+T?
For technical support, including MAX312CSE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX312CSE+T requirements.
6.How does Aetrix verify that MAX312CSE+T is sourced from the original manufacturer or authorized distributors?
All MAX312CSE+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 MAX312CSE+T meets industry standards.
7.What is the process for return or replacement of MAX312CSE+T?
All MAX312CSE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX312CSE+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 MAX312CSE+T part is unused and in its original packaging.
Return procedure for MAX312CSE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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