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Analog Devices Inc./Maxim Integrated MAX312ESE+T
- Part No.:
- MAX312ESE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX312ESE+T.pdf
- Description:
- IC SWITCH SPST-NCX4 10OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,181
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Product details
Overview
MAX312ESE+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 analog signal handling from ±4.5V to ±20V dual supplies or +4.5V to +30V single supply - enabling high-fidelity audio switching and low-distortion data acquisition.
For engineers reviewing the MAX312ESE+T datasheet, MAX312ESE+T pinout, MAX312ESE+T application, or MAX312ESE+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 in 16-pin narrow SOIC packages.
Technical Context
The MAX312ESE+T implements a fully complementary CMOS SPST switch architecture with matched P- and N-channel transistor pairs 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) and operates independently of analog supply rails.
Designed for operation across -40°C to +85°C, it guarantees RON ≤10Ω over full temperature and signal range, RON match ≤1.5Ω between any two channels, and off-isolation ≥65dB at 1MHz - critical for maintaining signal integrity in test equipment and avionics signal paths where channel-to-channel crosstalk must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 6.5Ω typical; ensures minimal voltage drop and power loss in precision analog paths up to ±10V signal swing |
| RON Matching | ≤1.5Ω max between channels; enables accurate gain-matching in multi-channel instrumentation front-ends |
| Analog Signal Range | Rail-to-rail: ±4.5V to ±20V dual supply or +4.5V to +30V single supply; supports full dynamic range of industrial sensors and audio signals |
| Off-Leakage Current | ±2.5nA max at +85°C; preserves accuracy in high-impedance sample-and-hold and sensor multiplexing circuits |
| Crosstalk | >96dB at 20kHz; prevents audible interference and measurement error in adjacent audio or data channels |
| ESD Protection | >2000V per Method 3015.7; provides robust handling during board assembly and field service without external protection |
| Turn-On/Off Time | 65ns/235ns typical (dual supply); enables fast channel switching in automated test systems and digital audio routing |
Pinout & Package
MAX312ESE+T is housed in a 16-pin narrow SOIC (SO) package (JEDEC MS-012, 3.9mm width), with exposed pad not present and RoHS-compliant lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 9, 16 | IN1–IN4 | Logic control inputs; active-low logic sense for NC configuration - IN=0 closes switch, IN=1 opens |
| 2, 7, 10, 15 | COM1–COM4 | Analog common terminals; bidirectional current path connection point for each SPST switch |
| 3, 6, 11, 14 | NC1–NC4 | Normally closed analog terminals; internally connected to COM when IN = 0; open when IN = 1 |
| 4 | V− | Negative analog supply; connect to GND for single-supply operation (+4.5V to +30V) |
| 5 | GND | Logic ground reference; separate from analog V− to minimize noise coupling in mixed-signal layouts |
| 12 | VL | Logic supply input; sets logic threshold (2.4V/0.8V) independent of analog rails; typically tied to +5V |
| 13 | V+ | Positive analog supply; supports up to +30V or ±20V; powers internal switch transistors and level shifters |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from V− to V+ without clipping - essential for ±15V op-amp interfaces and unipolar sensor outputs |
| Guaranteed RON flatness | ≤2Ω variation over full ±10V signal range - maintains consistent gain and THD in audio and instrumentation paths |
| Pin compatibility with DG411/DG412/DG413 | Direct PCB footprint replacement for legacy designs - eliminates layout rework in upgrade paths |
| Low charge injection | ±30pC max - minimizes voltage glitch in sample-and-hold and switched-capacitor circuits |
| High off-isolation | ≥65dB at 1MHz - suppresses unwanted signal coupling in multi-source routing applications like PBX line selection |
Applications
| Test Equipment Signal Routing | Avionics Sensor Multiplexing |
|---|---|
Use Scenario: Channel selection in automated test equipment (ATE) for routing calibration signals to DUT inputs. IC Role / Device Role / Timing Role: Quad SPST NC switch providing fail-safe closed-path default state during power-up or controller reset. Use Value: 6.5Ω RON and ≤1.5Ω channel matching ensure measurement repeatability across 4 parallel test paths without gain calibration per channel. |
Use Scenario: Multiplexing analog outputs from multiple pressure, temperature, and attitude sensors onto shared ADC inputs in flight control units. IC Role / Device Role / Timing Role: High-reliability analog switch with guaranteed -40°C to +85°C operation and >2000V ESD tolerance for harsh airborne environments. Use Value: ±2.5nA off-leakage at +85°C prevents DC offset drift in high-impedance sensor lines, preserving 16-bit ADC accuracy over temperature. |
| Audio Signal Switching | Data Acquisition Front-End |
Use Scenario: Input source selection in professional audio mixers and studio interfaces requiring low-THD analog routing. IC Role / Device Role / Timing Role: Normally closed switch used in mute/bypass paths with rail-to-rail ±15V signal support and >96dB crosstalk rejection. Use Value: 0.001% THD at 1kHz (5VRMS, 600Ω) enables transparent signal pass-through without coloration in critical monitoring paths. |
Use Scenario: Channel scanning in industrial data loggers acquiring signals from thermocouples, RTDs, and strain gauges. IC Role / Device Role / Timing Role: Precision analog multiplexer with low RON flatness and minimal charge injection to avoid settling errors in successive-approximation ADC sampling. Use Value: ≤2Ω RON variation over ±10V range ensures linear response across full sensor output span, eliminating gain nonlinearity in calibrated measurements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX313ESE+T | 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 disconnect in medical devices) | Select MAX313ESE+T only when fail-safe open behavior is mandatory; pinout and biasing otherwise identical |
| ADG411BRZ | 16-pin SOIC, quad SPST NO switch; RON = 35Ω typical (vs. 6.5Ω); higher leakage (±20nA at +85°C) | Better suited for lower-speed, cost-sensitive industrial controls where ultra-low RON is not critical | Choose ADG411BRZ for budget-constrained designs accepting higher on-resistance and reduced precision; not drop-in compatible due to logic polarity and leakage mismatch |
Compared with MAX312ESE+T, MAX313ESE+T offers identical performance in an NO configuration for safety-critical defaults, while ADG411BRZ trades 5.4× higher RON and 8× higher leakage for broader availability and lower unit cost - making it viable only where signal fidelity and thermal stability are secondary to procurement simplicity.
Availability
MAX312ESE+T is available at Aetrix Electronics and suitable for test equipment, avionics signal conditioning, and high-fidelity audio routing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX312ESE+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 computing markets.
The MAX312/MAX313/MAX314 family was designed specifically for precision analog signal routing in environments demanding low distortion, tight channel matching, and robust operation across wide supply and temperature ranges - targeting test instrumentation, aerospace, and pro-audio systems.
FAQ
What is the logic polarity configuration of the MAX312ESE+T?
The MAX312ESE+T features normally closed (NC) SPST switches with active-low logic control: when INx = 0V (logic low), the corresponding NCx–COMx path is closed; when INx = 2.4V (logic high), the path opens. This default-closed behavior ensures signal continuity during system initialization or microcontroller reset, making MAX312ESE+T ideal for fail-safe routing in safety-critical analog paths.
Can the MAX312ESE+T operate from a single +5V supply?
No - the MAX312ESE+T requires minimum ±4.5V dual supplies or +4.5V to +30V single supply. A +5V single supply falls within specification, but V− must be connected to GND (not left floating), and VL should be tied to +5V. Operation at +5V yields higher RON (~12.5Ω typical) and reduced signal swing (0V to +5V), limiting use to low-voltage sensor interfaces rather than full-rail audio or industrial signal chains.
How does the MAX312ESE+T handle overvoltage conditions on analog pins?
The MAX312ESE+T includes internal ESD diodes that clamp analog pin voltages to V+ +0.3V and V− −2V. For sustained overvoltage beyond absolute maximum ratings (e.g., ±44V), external series resistors or blocking diodes are required - Figure 1 in the datasheet shows a validated external diode protection scheme. Without such protection, exceeding V+ or V− by >0.3V risks permanent damage, especially during hot-plug events in test equipment.
Is the MAX312ESE+T pin-compatible with the DG411?
Yes - the MAX312ESE+T is explicitly specified as pin-compatible with the DG411, DG412, and DG413 in its features list. All share identical 16-pin SOIC pinout, NC/NO configuration mapping, and logic-level thresholds. However, MAX312ESE+T improves on DG411 with lower RON (6.5Ω vs. 35Ω), tighter RON matching (1.5Ω vs. 5Ω), and enhanced ESD rating (>2000V vs. ~200V), enabling direct replacement where performance uplift is needed.
What is the maximum signal frequency supported by the MAX312ESE+T?
The MAX312ESE+T maintains usable on-resistance and isolation up to ~10MHz in 50Ω systems, but off-isolation degrades rapidly above 5MHz due to parasitic capacitance. At 1MHz, off-isolation is ≥65dB; at 10MHz, it drops to ~40dB. For RF or high-speed digital signal routing above 10MHz, Maxim recommends the MAX440/MAX441 series - meaning MAX312ESE+T is best applied in audio (<20kHz), DC-coupled sensor, and sub-MHz data acquisition paths.
MAX312ESE+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-SOIC
MAX312ESE+T FAQ
1.How can I place an order for MAX312ESE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX312ESE+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 MAX312ESE+T reliable?
The price and inventory of MAX312ESE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX312ESE+T is usually 5 days.
3.What payment methods are accepted for MAX312ESE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX312ESE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX312ESE+T?
MAX312ESE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX312ESE+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 MAX312ESE+T?
For technical support, including MAX312ESE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX312ESE+T requirements.
6.How does Aetrix verify that MAX312ESE+T is sourced from the original manufacturer or authorized distributors?
All MAX312ESE+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 MAX312ESE+T meets industry standards.
7.What is the process for return or replacement of MAX312ESE+T?
All MAX312ESE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX312ESE+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 MAX312ESE+T part is unused and in its original packaging.
Return procedure for MAX312ESE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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