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Analog Devices Inc./Maxim Integrated MAX312ESE
- Part No.:
- MAX312ESE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX312ESE.pdf
- Description:
- IC SWITCH SPST-NCX4 10OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,125
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Product details
Overview
MAX312ESE from Maxim Integrated is a quad, single-pole/single-throw (SPST), normally closed (NC) CMOS analog switch operating from ±4.5V to ±20V dual supplies or +4.5V to +30V single supply. It delivers 6.5Ω typical on-resistance, 1.5Ω max on-resistance matching between channels, and 2.5nA max off-leakage at +85°C. It is used in precision audio routing and test equipment where bidirectional signal integrity and rail-to-rail analog handling are required.
For engineers reviewing the MAX312ESE datasheet, MAX312ESE pinout, MAX312ESE application, or MAX312ESE equivalent, key selection criteria include guaranteed RON flatness (≤2Ω), >96dB crosstalk at 20kHz, ESD tolerance >2000V per Method 3015.7, and compatibility with DG411/DG412/DG413 layouts in industrial and avionics signal-path designs.
Technical Context
The MAX312ESE implements a fully complementary CMOS SPST switch architecture with four independent NC channels. Its logic interface accepts TTL/CMOS-compatible inputs referenced to VL (logic supply), while analog terminals (COM, NC) support rail-to-rail signal voltages from V− to V+.
It guarantees monotonic on-resistance behavior across ±10V analog ranges and maintains ≤1.5Ω channel-to-channel RON mismatch over temperature (−40°C to +85°C). Break-before-make timing is not applicable-this is a true SPST NC device with no internal interlock.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 6.5Ω typical at VCOM = ±10V, ensures minimal signal attenuation in low-impedance audio and data acquisition paths |
| RON Matching | ≤1.5Ω max between channels, enables matched gain/phase response in multi-channel instrumentation |
| Analog Signal Range | ±10V with ±15V supplies, supports full-rail operation in bipolar sensor and DAC output interfaces |
| Off-Leakage Current | ±2.5nA max at +85°C, preserves accuracy in high-impedance sample-and-hold and multiplexer front-ends |
| Crosstalk | >96dB at 20kHz, prevents audible interference in stereo audio routing applications |
| ESD Protection | >2000V per Method 3015.7, reduces need for external protection in field-deployable test gear |
| Turn-On/Off Time | 65ns/235ns typical (dual-supply), suitable for <1MHz multiplexing without settling delay penalties |
Pinout & Package
MAX312ESE is housed in a 16-pin narrow SOIC (SO) package with standard 150-mil width and 1.27mm pitch. Pin functions are electrically identical across MAX312 variants and validated per Maxim's official pin description table.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 9, 16 | IN1–IN4 | Logic control inputs; active-low logic sense turns switch ON (closed) for NC configuration |
| 2, 7, 10, 15 | COM1–COM4 | Analog common terminals; connect to signal source/load in bidirectional path |
| 3, 6, 11, 14 | NC1–NC4 | Normally closed analog terminals; shorted to COM when IN = logic low |
| 4 | V+ | Positive analog supply input; must be ≥+4.5V (single) or ≤+44V absolute max |
| 5 | GND | Logic ground reference; tied to system ground, not analog return |
| 12 | VL | Logic supply voltage input; accepts 2.7V to V+ +0.3V, decouples logic from analog rails |
| 13 | V− | Negative analog supply input; required for dual-supply operation; connect to GND for single-supply use |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from V− to V+ without clipping, enabling direct interfacing with ±10V DACs and op-amps |
| Guaranteed RON flatness | ≤2Ω variation over ±10V range, minimizing harmonic distortion in audio and precision measurement paths |
| Pin compatibility with DG411 | Direct PCB replacement for legacy DG411-based designs without layout changes or signal integrity revalidation |
| Low charge injection | ±30pC max, critical for maintaining DC accuracy in sample-and-hold and switched-capacitor circuits |
| High off-isolation | −65dB at 1MHz, suppresses crosstalk between adjacent channels in dense multiplexer arrays |
Applications
| Test Equipment Signal Routing | Avionics Sensor Multiplexing |
|---|---|
Use Scenario: Automated test systems route multiple sensor outputs to shared ADC channels under microcontroller control. IC Role / Device Role / Timing Role: Quad SPST NC switch isolates unused sensor paths while maintaining low-impedance connection for active channels. Use Value: 6.5Ω RON and ≤1.5Ω matching ensure consistent gain scaling across all four channels, reducing calibration overhead. |
Use Scenario: Flight control computers aggregate analog signals from redundant pressure, temperature, and position sensors. IC Role / Device Role / Timing Role: Normally closed configuration provides fail-safe continuity during power-up or logic fault conditions. Use Value: −40°C to +85°C operating range and 2.5nA leakage at +85°C maintain signal fidelity in uncontrolled environmental bays. |
| Professional Audio Switching Matrix | PBX Analog Line Interface |
Use Scenario: Digital mixing consoles route line-level audio between inputs, effects processors, and outputs using analog crosspoint switching. IC Role / Device Role / Timing Role: Bidirectional conduction and rail-to-rail handling preserve signal polarity and amplitude integrity across AC-coupled paths. Use Value: >96dB crosstalk at 20kHz and <0.01% THD enable transparent stereo imaging without channel bleed. |
Use Scenario: Private branch exchange systems manage analog telephone line connections, including ring detection, codec interfacing, and hybrid balancing. IC Role / Device Role / Timing Role: Low RON and high off-isolation isolate ringing signals from active voice paths during call setup. Use Value: ±20V dual-supply capability supports legacy -48V telephony biasing schemes without level-shifting circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX313ESE | Quad SPST, normally open (NO) configuration instead of NC; identical RON, leakage, and timing specs | Suitable where default-open safety state is required (e.g., power-off signal isolation) | Select MAX313ESE when fail-open behavior is mandated by system safety architecture |
| ADG411BRZ | Pin-compatible quad SPST NC switch; 35Ω typical RON at ±15V, higher leakage (25nA at +85°C), wider SOIC package | Better suited for cost-sensitive industrial controls where ultra-low RON is noncritical | Choose ADG411BRZ only if board space allows wider SOIC and 35Ω RON meets signal-chain SNR requirements |
Compared with MAX312ESE, MAX313ESE offers identical performance in a fail-open configuration, while ADG411BRZ trades lower cost and broader availability for significantly higher on-resistance and leakage-making it viable only in non-precision, high-margin analog routing.
Availability
MAX312ESE is available at Aetrix Electronics and suitable for test equipment, avionics subsystems, and professional audio signal routing requiring stable component supply across extended temperature and long-lifecycle programs.
Supply support for MAX312ESE 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 automotive markets.
The MAX312 series belongs to Maxim's precision analog switch product line, designed specifically for low-distortion, low-leakage signal routing in test, measurement, and mission-critical embedded systems.
FAQ
What is the maximum allowable supply voltage for MAX312ESE?
The MAX312ESE supports absolute maximum ratings of −0.3V to +44V on V+ and +0.3V to −44V on V−, with V+ to V− differential up to +44V. For reliable operation, use dual supplies within ±4.5V to ±20V or single supply from +4.5V to +30V. Exceeding these ranges risks permanent damage, as confirmed in the Absolute Maximum Ratings table.
Does MAX312ESE require a separate logic supply (VL)?
Yes, MAX312ESE requires VL to be connected-typically to +5V-to establish proper logic threshold referencing. VL may range from (GND − 0.3V) to (V+ + 0.3V); it is not internally generated. Leaving VL floating or unconnected will result in undefined switching behavior and potential latch-up, as specified in the Pin Description and Absolute Maximum Ratings sections.
Can MAX312ESE operate from a single +12V supply?
Yes, MAX312ESE operates from a single +12V supply when V− is tied to GND and VL is set to +5V. In this configuration, the analog signal range is 0V to +12V, and RON remains ≤25Ω (typical) at VCOM = +8V. This mode is fully characterized in the Single-Supply Electrical Characteristics table and validated for use in data acquisition and industrial I/O modules.
Is MAX312ESE pin-compatible with the DG411?
Yes, MAX312ESE is explicitly stated as pin-compatible with DG411 in the Features section of the datasheet. All 16 pins-including IN, COM, NC, V+, V−, GND, and VL-map identically, allowing drop-in replacement without PCB modification. This compatibility extends to timing, leakage, and drive requirements under equivalent supply conditions.
What is the thermal performance of MAX312ESE in narrow SOIC package?
In its 16-pin narrow SOIC package, MAX312ESE has a thermal derating factor of 8.70mW/°C above +70°C and a maximum continuous power dissipation of 696mW at TA = +70°C. At full rated load (±100mA per channel), junction temperature rise remains within safe limits up to +85°C ambient, as verified in the Absolute Maximum Ratings and Thermal Characteristics sections.
MAX312ESE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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-SOIC
MAX312ESE FAQ
1.How can I place an order for MAX312ESE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX312ESE 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 MAX312ESE reliable?
The price and inventory of MAX312ESE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX312ESE is usually 5 days.
3.What payment methods are accepted for MAX312ESE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX312ESE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX312ESE?
MAX312ESE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX312ESE 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 MAX312ESE?
For technical support, including MAX312ESE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX312ESE requirements.
6.How does Aetrix verify that MAX312ESE is sourced from the original manufacturer or authorized distributors?
All MAX312ESE 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 MAX312ESE meets industry standards.
7.What is the process for return or replacement of MAX312ESE?
All MAX312ESE units undergo pre-shipment inspection (PSI). If there is an issue with MAX312ESE, 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 MAX312ESE part is unused and in its original packaging.
Return procedure for MAX312ESE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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