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Analog Devices Inc./Maxim Integrated MAX312LCSE+
- Part No.:
- MAX312LCSE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX312LCSE+.pdf
- Description:
- IC SWITCH SPST-NCX4 10OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,657
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Product details
Overview
MAX312LCSE+ from Maxim Integrated is a quad, normally closed (NC), single-pole/single-throw (SPST) analog switch IC designed for precision signal routing in ±4.5V to ±20V or +4.5V to +36V systems. It delivers 10Ω max on-resistance, 1.5Ω max on-resistance matching between channels, and +3V logic-compatible inputs (VIH = 2.0V, VIL = 0.8V), enabling direct interface with low-voltage microcontrollers in test equipment and audio routing applications.
For engineers reviewing the MAX312LCSE+ datasheet, MAX312LCSE+ pinout, MAX312LCSE+ application, or MAX312LCSE+ equivalent, this page provides verified electrical specifications, SO package terminal mapping, rail-to-rail analog signal handling capability, crosstalk performance (>96dB at 20kHz), and real-world design implications for leakage, timing, and supply sequencing freedom.
Technical Context
The MAX312LCSE+ implements a CMOS-based SPST switch architecture with four independent normally closed channels, each featuring symmetrical bidirectional conduction and guaranteed RON flatness ≤2Ω over its full analog signal range. Its logic inputs are fully compatible with +3V CMOS/TTL levels across the full operating temperature range (0°C to +70°C), eliminating level-shifting requirements.
It supports true rail-to-rail analog signal handling - from V− to V+ - under both dual-supply (±4.5V to ±20V) and single-supply (+4.5V to +36V) configurations, with off-leakage current limited to ±2.5nA at +85°C and charge injection of ±30pC, making it suitable for sample-and-hold and precision instrumentation circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 10Ω max - ensures minimal voltage drop and signal attenuation in high-fidelity audio or data-acquisition paths. |
| RON Matching | 1.5Ω max between channels - critical for matched gain/phase in differential or multi-channel signal routing. |
| Analog Signal Range | V− to V+ - supports rail-to-rail input/output swing without clipping in ±15V or +12V systems. |
| Logic Compatibility | +3V logic (VIH = 2.0V, VIL = 0.8V) - interfaces directly with modern low-voltage MCUs and FPGAs without external translators. |
| Off-Leakage Current | ±2.5nA at +85°C - preserves accuracy in high-impedance sensor front-ends and sample-and-hold hold capacitors. |
| Crosstalk | >96dB at 20kHz - prevents audible inter-channel coupling in professional audio switching matrices. |
| Turn-On/Off Time | 275ns / 235ns max (dual supply) - enables fast multiplexing in automated test equipment scan cycles. |
Pinout & Package
MAX312LCSE+ is housed in a 16-pin narrow SO (Small Outline) package per JEDEC MS-012, with gull-wing leads and 1.27mm pitch. Pin 1 is marked by a beveled corner or dot; thermal performance supports 696mW at +70°C ambient (derating 8.70mW/°C above).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 9, 16 | IN1, IN2, IN3, IN4 | Active-low logic inputs controlling NC switch state; low = closed, high = open. |
| 2, 7, 10, 15 | COM1–COM4 | Analog common terminals - bidirectional signal path entry/exit points for each channel. |
| 3, 6, 11, 14 | NC1–NC4 | Normally closed analog terminals - conduct to COM when corresponding IN is low. |
| 4 | V− | Negative analog supply rail; connect to GND for single-supply operation. |
| 5 | GND | Digital/analog reference ground - must be low-impedance and star-connected in mixed-signal layouts. |
| 12 | N.C. | No internal connection - leave unconnected; no routing or grounding required. |
| 13 | V+ | Positive analog supply rail - sets upper limit of analog signal range and powers internal logic. |
Key Features
| Feature | Design Value |
|---|---|
| Power-supply sequencing freedom | No VL pin or strict V+/V−/GND power-up order required - eliminates latch-up risk and simplifies system power management. |
| Rail-to-rail signal handling | Full conduction from V− to V+ - avoids signal clipping in ±15V op-amp stages or +12V DAC outputs. |
| Low charge injection (±30pC) | Minimizes voltage glitch on hold capacitors - essential for sub-12-bit accuracy in sample-and-hold circuits. |
| Guaranteed RON flatness (≤2Ω) | Ensures consistent gain and THD across full analog input range - critical for low-distortion audio routing. |
| Pin compatibility with DG411/DG412 | Enables drop-in replacement in legacy designs using industry-standard quad SPST switches. |
Applications
| Test Equipment Switching Matrix | Professional Audio Signal Router |
|---|---|
Use Scenario: Automated test systems route DUT signals through calibration paths, stimulus sources, and measurement instruments using relayless solid-state switching. IC Role / Device Role / Timing Role: MAX312LCSE+ serves as the core SPST routing element in multi-channel analog crosspoint arrays, controlled by FPGA GPIOs. Use Value: 10Ω RON and 1.5Ω matching preserve measurement accuracy across channels; 275ns tON enables rapid test sequence execution. |
Use Scenario: Digital mixing consoles and stageboxes route mic/line-level audio between preamps, DSP blocks, and output drivers. IC Role / Device Role / Timing Role: MAX312LCSE+ implements silent, pop-free channel muting and source selection via NC topology and low charge injection. Use Value: ±30pC charge injection prevents audible click/pop during mute transitions; >96dB crosstalk isolates adjacent audio channels. |
| Avionics Sensor Interface | Data-Acquisition Multiplexer |
Use Scenario: Aircraft environmental monitoring systems condition and select signals from multiple pressure, temperature, and flow sensors before ADC conversion. IC Role / Device Role / Timing Role: MAX312LCSE+ acts as a rugged, low-leakage analog multiplexer front-end, operating from wide-input avionics supplies (±15V). Use Value: ±2.5nA off-leakage at +85°C maintains accuracy in high-Z sensor bridges; rail-to-rail range accommodates full sensor output spans. |
Use Scenario: Industrial PLC modules digitize analog process variables (4–20mA, thermocouple, RTD) using shared high-resolution ADCs. IC Role / Device Role / Timing Role: MAX312LCSE+ functions as the precision analog switch in a 16-channel multiplexer, enabling sequential sampling with minimal channel-to-channel error. Use Value: 1.5Ω RON matching ensures uniform gain scaling across all channels; low THD supports >90dB SNR measurements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX312CSE+ | Legacy version with VL pin; requires strict V+, VL, V− sequencing; higher RON (15Ω typ) and leakage. | Lacks supply sequencing freedom and rail-to-rail performance; not recommended for new designs. | Select MAX312LCSE+ for simplified power design and improved matching/leakage specs. |
| DG411DN | Pin-compatible but lacks +3V logic compatibility (VIH = 4.5V min); higher RON (35Ω typ); no guaranteed RON match spec. | Suitable only where 5V logic control and relaxed matching are acceptable. | Choose MAX312LCSE+ when interfacing with 3.3V controllers or requiring matched channel performance. |
Compared with MAX312CSE+ and DG411DN, the MAX312LCSE+ offers superior design flexibility through sequencing-free operation, tighter RON matching, lower leakage, and native +3V logic support - reducing BOM count and layout complexity in modern embedded systems.
Availability
MAX312LCSE+ is available at Aetrix Electronics and suitable for test equipment, professional audio systems, and avionics sensor interfaces requiring stable component supply, long-term lifecycle assurance, and traceable sourcing from authorized channels.
Supply support for MAX312LCSE+ 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 semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and computing applications.
The MAX312L family was engineered for precision analog signal routing in demanding environments - delivering low distortion, robust supply tolerance, and logic-level flexibility for test, audio, and instrumentation systems.
FAQ
What is the maximum supply voltage rating for MAX312LCSE+?
The MAX312LCSE+ supports dual supplies up to ±20V (V+ to V− ≤ +44V) and single supplies up to +36V. Absolute maximum ratings specify V+ ≤ +44V and V− ≥ −44V relative to GND; exceeding these may cause permanent damage. Operation within ±15V or +12V is typical for most applications involving the MAX312LCSE+.
Does MAX312LCSE+ require power-supply sequencing?
No - the MAX312LCSE+ eliminates the VL pin found in older MAX312 variants and permits any power-up sequence (e.g., V+ before GND or V−). This sequencing freedom simplifies system power design and removes latch-up risks, distinguishing the MAX312LCSE+ from legacy alternatives that mandate strict V+, VL, V− ordering.
What is the function of pins 3, 6, 11, and 14 on MAX312LCSE+?
Pins 3, 6, 11, and 14 on the MAX312LCSE+ are NC1, NC2, NC3, and NC4 - the normally closed analog terminals for each of the four SPST switches. When the corresponding INx pin is logic low, the path between COMx and NCx is closed; when INx is high, the path opens. These pins carry the routed analog signal and must be routed with controlled impedance in high-frequency applications.
Can MAX312LCSE+ operate from a single +5V supply?
No - the MAX312LCSE+ minimum single-supply voltage is +4.5V, and its specified RON and leakage performance are guaranteed only from +4.5V to +36V. At +5V, RON rises significantly (≥35Ω typ per datasheet), degrading signal integrity; use +12V or higher for optimal performance. The MAX312LCSE+ is not rated for 3.3V or 5V-only operation.
How does MAX312LCSE+ compare to MAX313LCSE+ in pinout and functionality?
The MAX312LCSE+ and MAX313LCSE+ share identical pinouts and package dimensions, but differ in switch configuration: MAX312LCSE+ is quad normally closed (NC), while MAX313LCSE+ is quad normally open (NO). Their logic polarity is inverted - MAX312LCSE+ closes on logic low, whereas MAX313LCSE+ closes on logic high - requiring firmware or schematic adaptation when substituting.
MAX312LCSE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- 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 ~ 36V
- 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
MAX312LCSE+ FAQ
1.How can I place an order for MAX312LCSE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX312LCSE+ 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 MAX312LCSE+ reliable?
The price and inventory of MAX312LCSE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX312LCSE+ is usually 5 days.
3.What payment methods are accepted for MAX312LCSE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX312LCSE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX312LCSE+?
MAX312LCSE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX312LCSE+ 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 MAX312LCSE+?
For technical support, including MAX312LCSE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX312LCSE+ requirements.
6.How does Aetrix verify that MAX312LCSE+ is sourced from the original manufacturer or authorized distributors?
All MAX312LCSE+ 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 MAX312LCSE+ meets industry standards.
7.What is the process for return or replacement of MAX312LCSE+?
All MAX312LCSE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX312LCSE+, 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 MAX312LCSE+ part is unused and in its original packaging.
Return procedure for MAX312LCSE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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