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Analog Devices Inc./Maxim Integrated MAX312CAE
- Part No.:
- MAX312CAE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- -
- Datasheet:
-
MAX312CAE.pdf
- Description:
- IC SWITCH SPSTX4 10OHM
- Quantity:
- Payment:
- Shipping:
Inventory:375
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Product details
Overview
MAX312CAE 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 2.5nA max off-leakage at +85°C, enabling low-distortion audio and high-fidelity data acquisition applications.
For engineers reviewing the MAX312CAE datasheet, MAX312CAE pinout, MAX312CAE application, or MAX312CAE equivalent, key selection criteria include rail-to-rail signal handling (±10V analog range), guaranteed ESD tolerance >2000V per Method 3015.7, dual-supply operation (±4.5V to ±20V), and compatibility with DG411-family layouts.
Technical Context
The MAX312CAE 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/0.8V thresholds) and operates independently of analog supply polarity.
It supports true rail-to-rail analog signal switching across the full V+ to V− range, with on-resistance flatness ≤2Ω over ±10V, and exhibits <5nA total leakage (COM/NO/NC) at +85°C under dual-supply conditions - critical for sample-and-hold and high-impedance sensor interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 6.5Ω typical; ensures minimal signal attenuation and voltage drop in precision analog paths. |
| RON Matching | ≤1.5Ω max between channels; enables accurate differential signal routing and matched gain paths. |
| Analog Signal Range | ±10V (dual supply) or 0V to V+ (single supply); supports rail-to-rail input/output without clipping. |
| Off-Leakage Current | ±2.5nA max at +85°C; preserves accuracy in high-impedance sampling and low-power hold circuits. |
| ESD Tolerance | >2000V per Method 3015.7; provides robust handling during board assembly and system integration. |
| Crosstalk | >96dB at 20kHz; prevents inter-channel interference in multi-signal routing like PBX or avionics I/O. |
| Supply Range | +4.5V to +30V single supply or ±4.5V to ±20V dual supply; accommodates industrial and test-equipment power rails. |
Pinout & Package
MAX312CAE is housed in a 16-pin plastic DIP package (0.300" wide), with pins arranged for standard through-hole mounting and compatible with SOIC/TSSOP footprints via adapter design. Pin functions are electrically defined and thermally optimized for low thermal resistance in continuous 100mA channel operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 9, 16 | IN1–IN4 | Logic control inputs; active-low logic sense for NC configuration (IN=0 → switch closed). |
| 2, 7, 10, 15 | COM1–COM4 | Analog common terminals; bidirectional signal path connection points 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; tied to GND for single-supply operation; sets lower rail for analog signal swing. |
| 5 | GND | Logic ground reference; separate from analog supplies to minimize digital noise coupling into analog paths. |
| 12 | VL | Logic supply input; decouples logic threshold generation from analog supplies, enabling mixed-voltage control. |
| 13 | V+ | Positive analog supply; defines upper analog rail; supports up to +30V for high-voltage signal routing. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-Rail® Signal Handling | Supports analog signals from V− to V+ without distortion or clipping, essential for full-scale instrumentation inputs. |
| Guaranteed RON Flatness | ≤2Ω variation over ±10V signal range, minimizing harmonic distortion in audio and measurement applications. |
| Low Charge Injection | ±30pC max; reduces voltage glitch on sampled capacitors, improving accuracy in sample-and-hold circuits. |
| Pin Compatibility | Direct replacement for DG411 in NC configuration; enables drop-in upgrade with no PCB redesign required. |
| High Off Isolation | −65dB at 1MHz; suppresses crosstalk between inactive channels in dense multiplexed systems. |
Applications
| Test Equipment Signal Routing | Avionics Sensor Multiplexing |
|---|---|
|
Use Scenario: Automated test systems route calibration signals between multiple DUTs and precision DACs/ADCs. IC Role / Device Role / Timing Role: Quad SPST NC switch isolates signal paths during reconfiguration; maintains continuity until new path is established. Use Value: 1.5Ω RON match ensures consistent gain scaling across channels, reducing calibration overhead by >30%. |
Use Scenario: Flight control units condition and route analog outputs from redundant inertial sensors. IC Role / Device Role / Timing Role: Normally closed topology guarantees default signal path integrity during power-up or fault events. Use Value: ±2.5nA leakage at +85°C prevents drift in 10MΩ sensor bridges, preserving <0.1% full-scale accuracy. |
| Audio Signal Switching | Data Acquisition Front-End |
|
Use Scenario: Pro-audio mixers select between microphone preamp outputs before analog-to-digital conversion. IC Role / Device Role / Timing Role: Low RON (6.5Ω typ) and flatness (<2Ω) preserve THD <−100dB up to 20kHz. Use Value: Rail-to-rail operation handles ±10V line-level signals without external level-shifting circuitry. |
Use Scenario: Industrial PLC modules scan thermocouple and RTD inputs using shared ADC resources. IC Role / Device Role / Timing Role: Four independent NC switches sequentially connect sensors to a single instrumentation amplifier. Use Value: Guaranteed ESD >2000V protects against field-induced latch-up during maintenance or probe contact. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX312CSE | Same electrical specs; 16-pin narrow SOIC package instead of DIP; 0°C to +70°C temp grade. | Better suited for space-constrained PCBs requiring surface-mount assembly and automated reflow. | Select MAX312CSE when board real estate or manufacturing process favors SOIC over through-hole DIP. |
| DG411DJ | Pin-compatible but higher RON (35Ω typ), wider RON variation (5Ω max), and no guaranteed ESD rating. | Limited to low-speed, non-critical routing where leakage and distortion are less constrained. | Choose DG411DJ only for legacy designs where cost is primary and performance margins are relaxed. |
Compared with MAX312CSE, the MAX312CAE offers identical analog performance in a through-hole package ideal for prototyping and ruggedized systems; versus DG411DJ, it delivers superior RON, matching, and ESD robustness - justifying upgrade in any new design targeting ≥12-bit accuracy or field-deployed reliability.
Availability
MAX312CAE is available at Aetrix Electronics and suitable for test equipment signal routing, avionics sensor multiplexing, and audio signal switching requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX312CAE 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 series belongs to Maxim's precision analog switch product line, engineered for low-distortion, high-isolation signal routing in mission-critical test, measurement, and aerospace systems.
FAQ
What is the operating temperature range of the MAX312CAE?
The MAX312CAE is rated for 0°C to +70°C operation, making it suitable for commercial and industrial environments where ambient temperatures remain within this band. This grade is confirmed in Maxim's official ordering information table and corresponds to the 'C' suffix in the part number. The device maintains full electrical specifications - including 6.5Ω typical RON and ±2.5nA leakage at +85°C - across its specified range.
How does the MAX312CAE differ from the MAX313CAE?
The MAX312CAE is a normally closed (NC) quad SPST switch, while the MAX313CAE is normally open (NO). In the MAX312CAE, each channel conducts when its IN pin is logic low (0V), and opens when high (≥2.4V); the MAX313CAE behaves oppositely. Both share identical RON, leakage, and supply specifications, but their truth tables and default states are inverted - a critical distinction for fail-safe signal path design.
Can the MAX312CAE operate from a single +12V supply?
Yes, the MAX312CAE supports single-supply operation from +4.5V to +30V. With V+ = +12V and V− tied to GND (pin 4), it delivers rail-to-rail analog switching from 0V to +12V. Electrical characteristics - including 12.5Ω typical RON at VCOM = +8V and tON/tOFF <425ns - are fully specified under these conditions in the datasheet's Single Supply section.
Is the MAX312CAE pin-compatible with the DG411?
Yes, the MAX312CAE is explicitly pin-compatible with the DG411 in its normally closed configuration, as stated in the Features section of the datasheet. Pin assignments for IN, COM, NC, V+, V−, GND, and VL align directly, allowing direct substitution without layout changes - provided the application requires NC behavior and operates within MAX312CAE's enhanced performance envelope.
What is the maximum continuous current per channel for the MAX312CAE?
The MAX312CAE supports ±100mA continuous current per COM/NC channel, as specified in the Absolute Maximum Ratings table. This rating applies across the full operating temperature range and assumes proper PCB thermal relief. Exceeding this limit risks parametric shift or permanent damage, especially under high RON conditions or elevated ambient temperatures.
MAX312CAE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Switch Circuit:
- SPST - Closed
- 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:
- -
- Supplier Device Package:
- -
MAX312CAE FAQ
1.How can I place an order for MAX312CAE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX312CAE 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 MAX312CAE reliable?
The price and inventory of MAX312CAE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX312CAE is usually 5 days.
3.What payment methods are accepted for MAX312CAE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX312CAE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX312CAE?
MAX312CAE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX312CAE 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 MAX312CAE?
For technical support, including MAX312CAE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX312CAE requirements.
6.How does Aetrix verify that MAX312CAE is sourced from the original manufacturer or authorized distributors?
All MAX312CAE 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 MAX312CAE meets industry standards.
7.What is the process for return or replacement of MAX312CAE?
All MAX312CAE units undergo pre-shipment inspection (PSI). If there is an issue with MAX312CAE, 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 MAX312CAE part is unused and in its original packaging.
Return procedure for MAX312CAE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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