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Analog Devices Inc./Maxim Integrated MAX312CSE+TG068
- Part No.:
- MAX312CSE+TG068
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- -
- Datasheet:
-
MAX312CSE+TG068.pdf
- Description:
- INTEGRATED CIRCUIT
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Product details
Overview
MAX312CSE+TG068 from Maxim Integrated is a quad, normally closed (NC), single-pole/single-throw (SPST) CMOS analog switch optimized for precision signal routing. 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. It is used in audio signal routing, test equipment, and data acquisition systems where low distortion and tight channel matching are critical.
For engineers reviewing the MAX312CSE+TG068 datasheet, MAX312CSE+TG068 pinout, MAX312CSE+TG068 application, or MAX312CSE+TG068 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+TG068 implements a fully complementary CMOS SPST switch architecture with four independent NC channels. Its logic interface accepts TTL/CMOS-compatible inputs referenced to VL (2.4V high, 0.8V low), and it supports true bidirectional conduction with symmetrical on-resistance across the full analog signal range (±10V with ±15V supplies).
It features integrated overvoltage protection circuitry that clamps input signals exceeding V+ or V− via internal diodes, and its charge injection is tightly controlled at ±30pC (typ), enabling use in sample-and-hold circuits without significant settling error. The device operates across 0°C to +70°C and is specified for ≤10Ω max on-resistance over temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 6.5Ω typical, ≤10Ω max - ensures minimal signal attenuation and gain error in precision analog paths |
| RON Matching | ≤1.5Ω max difference between any two channels - enables matched gain/phase in multi-channel instrumentation |
| Analog Signal Range | ±10V with ±15V supplies; 0V to V+ with single supply - supports rail-to-rail signal switching without clipping |
| Off-Leakage Current | ±2.5nA max at +85°C - preserves accuracy in high-impedance sensor front-ends and sample-and-hold hold capacitors |
| Crosstalk | >96dB at 20kHz - prevents audible interference in stereo audio routing and cross-channel coupling in data acquisition |
| 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 (typ, dual supply) - supports fast multiplexing in automated test equipment and digital sampling systems |
Pinout & Package
MAX312CSE+TG068 is housed in a 16-pin narrow SOIC (Small Outline Integrated Circuit) package, 3.9mm wide, with standard 1.27mm pitch and JEDEC MS-012 outline. 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 | Logic Input (IN1–IN4) | Active-low control inputs for NC switches; logic high = open, logic low = closed |
| 2, 7, 10, 15 | Common Terminal (COM1–COM4) | Analog signal path input/output node; bidirectional, rail-to-rail capable |
| 3, 6, 11, 14 | Normally Closed Terminal (NC1–NC4) | Default-connected analog output when INx = low; opens when INx = high |
| 4 | Negative Supply (V−) | Connect to −4.5V to −20V (dual) or GND (single supply); sets lower analog rail |
| 5 | Ground (GND) | Logic ground reference; must be tied to system ground even in dual-supply operation |
| 12 | Positive Supply (V+) | Connect to +4.5V to +30V; defines upper analog rail and powers internal switch core |
| 13 | Logic Supply (VL) | Accepts 2.0V to V+; decouples logic threshold from analog rails for mixed-voltage systems |
Key Features
| Feature | Design Value |
|---|---|
| Pin-compatible replacement for DG411 | Direct drop-in substitution in legacy designs without PCB changes or layout revision |
| RON flatness ≤2Ω | Maintains consistent gain and THD across full signal swing (±10V), critical for low-distortion audio routing |
| Rail-to-rail® signal handling | Switches signals from V− to V+ without clipping or distortion-enables full dynamic range utilization |
| Charge injection ±30pC | Minimizes voltage step on hold capacitors, reducing settling time and error in precision sample-and-hold stages |
| Break-before-make isolation (MAX314 only) | Not applicable - MAX312CSE+TG068 is NC-only; no break-before-make timing required |
Applications
| Audio Signal Routing | Test Equipment Multiplexing |
|---|---|
Use Scenario: Switching left/right channels, microphone inputs, or line-level signals in professional audio mixers and studio interfaces. IC Role / Device Role / Timing Role: Quad NC analog switch providing low-noise, low-crosstalk signal path selection with zero detectable switching artifacts. Use Value: 6.5Ω RON and >96dB crosstalk preserve stereo imaging and prevent inter-channel bleed at 20kHz. | Use Scenario: Automated routing of DUT signals to measurement instruments (DMM, scope, signal generator) in ATE systems. IC Role / Device Role / Timing Role: Precision analog multiplexer enabling sequential probing of multiple sensor outputs or power rails under microcontroller control. Use Value: ≤2.5nA off-leakage at +85°C ensures accurate DC measurements across temperature; 65ns turn-on supports high-throughput test cycles. |
| Data Acquisition Front-End | Avionics Signal Conditioning |
Use Scenario: Channel selection before a shared ADC in industrial PLCs or environmental monitoring systems. IC Role / Device Role / Timing Role: Low-RON, matched quad switch isolating sensor inputs (thermocouples, RTDs) from ADC input stage. Use Value: 1.5Ω RON matching minimizes channel-to-channel gain error; rail-to-rail support accommodates ±10V sensor outputs. | Use Scenario: Redundant signal path switching and sensor cross-checking in flight control and navigation subsystems. IC Role / Device Role / Timing Role: Fault-tolerant analog switch ensuring continuity in NC configuration during power-up or logic fault conditions. Use Value: Guaranteed NC state at power-on (INx = high opens path) provides fail-safe default; >2000V ESD withstand protects against aircraft static discharge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX312CSE+ | No +TG068 suffix; same SOIC-16 package, identical electrical specs, but lacks tape-and-reel packaging and traceability markings | Suitable for prototyping or low-volume builds where reel packaging and lot traceability are not required | Select MAX312CSE+TG068 for production programs needing full traceability, ESD-safe packaging, and guaranteed reel integrity. |
| ADG411BRZ | Pin-compatible but higher RON (35Ω typ), wider temp range (−40°C to +85°C), no rail-to-rail analog support (limited to VDD − 2V) | Better suited for general-purpose switching where precision matching and full rail handling are not critical | Choose ADG411BRZ only if operating beyond +70°C or cost is primary constraint; MAX312CSE+TG068 outperforms in THD-sensitive and high-matching applications. |
Compared with MAX312CSE+ and ADG411BRZ, the MAX312CSE+TG068 offers superior on-resistance flatness (≤2Ω vs. unspecified), tighter leakage control (±2.5nA vs. ±5nA), and guaranteed rail-to-rail operation-making it the preferred choice for high-fidelity audio, precision DAQ, and safety-critical avionics signal routing.
Availability
MAX312CSE+TG068 is available at Aetrix Electronics and suitable for audio signal routing, test equipment multiplexing, and data acquisition systems requiring stable component supply, full production traceability, and long-term lifecycle assurance.
Supply support for MAX312CSE+TG068 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 computing markets.
The MAX312 family was designed specifically for low-distortion, high-precision analog signal routing in environments demanding tight RON matching, ultra-low leakage, and robust ESD immunity-targeting test & measurement, medical instrumentation, and aerospace systems.
FAQ
What is the operating temperature range for MAX312CSE+TG068?
The MAX312CSE+TG068 is rated for 0°C to +70°C ambient operation. This commercial-grade temperature range is confirmed in the Ordering Information table and Absolute Maximum Ratings section of the datasheet. It is not rated for extended industrial (−40°C to +85°C) or military (−55°C to +125°C) ranges-those require MAX312ESE or MAX312MJE variants. The MAX312CSE+TG068 maintains ≤10Ω max RON and ≤2.5nA leakage across this full range.
Is MAX312CSE+TG068 pin-compatible with the DG411 analog switch?
Yes, MAX312CSE+TG068 is explicitly stated in the Features section to be pin compatible with DG411/DG412/DG413. Its pinout matches the 16-pin SOIC footprint, terminal functions (INx, COMx, NCx, V+, V−, GND, VL), and logic polarity. No PCB redesign is needed when upgrading from DG411 to MAX312CSE+TG068, though layout review is recommended to verify thermal relief and grounding for improved ESD performance.
Does MAX312CSE+TG068 support single-supply operation?
Yes, MAX312CSE+TG068 supports single-supply operation from +4.5V to +30V. In this mode, V− is connected to GND, and the analog signal range extends from 0V to V+. The Electrical Characteristics table confirms RON = 12.5Ω (typ) and tON = 425ns (typ) under V+ = 12V, V− = 0V conditions. Rail-to-rail operation remains functional, allowing full utilization of the supply voltage for signal swing.
What is the maximum analog signal voltage the MAX312CSE+TG068 can handle?
The MAX312CSE+TG068 supports analog signals from V− to V+, with absolute maximum ratings of V+ = −0.3V to +44V and V− = +0.3V to −44V. Under standard ±15V dual-supply operation, the usable analog range is ±10V (as tested in Electrical Characteristics). Exceeding V+ or V− triggers internal clamp diodes-forward current must be limited to ≤30mA peak to avoid damage, per Absolute Maximum Ratings Note 1.
How does the logic interface of MAX312CSE+TG068 work?
The MAX312CSE+TG068 uses independent TTL/CMOS-compatible logic inputs (IN1–IN4) referenced to VL, not V+ or GND. A logic high (≥2.4V) opens the NC switch; a logic low (≤0.8V) closes it. VL may be supplied from 2.0V to V+ and is decoupled from analog rails-enabling interfacing with 3.3V or 5V controllers while operating analog sections at ±15V. Input current is ≤0.5µA (max), minimizing loading on driving logic.
MAX312CSE+TG068 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- -
- Number of Circuits:
- -
- On-State Resistance (Max):
- -
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- -
- -3db Bandwidth:
- -
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- -
- Current - Leakage (IS(off)) (Max):
- -
- Crosstalk:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX312CSE+TG068 FAQ
1.How can I place an order for MAX312CSE+TG068 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX312CSE+TG068 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+TG068 reliable?
The price and inventory of MAX312CSE+TG068 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX312CSE+TG068 is usually 5 days.
3.What payment methods are accepted for MAX312CSE+TG068?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX312CSE+TG068 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX312CSE+TG068?
MAX312CSE+TG068 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX312CSE+TG068 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+TG068?
For technical support, including MAX312CSE+TG068 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX312CSE+TG068 requirements.
6.How does Aetrix verify that MAX312CSE+TG068 is sourced from the original manufacturer or authorized distributors?
All MAX312CSE+TG068 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+TG068 meets industry standards.
7.What is the process for return or replacement of MAX312CSE+TG068?
All MAX312CSE+TG068 units undergo pre-shipment inspection (PSI). If there is an issue with MAX312CSE+TG068, 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+TG068 part is unused and in its original packaging.
Return procedure for MAX312CSE+TG068:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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