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Analog Devices Inc./Maxim Integrated MAX4612CSD
- Part No.:
- MAX4612CSD
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4612CSD.pdf
- Description:
- IC SW SPST-NO/NCX4 100OHM 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,278
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Product details
Overview
MAX4612CSD from Maxim Integrated is a quad, low-voltage, SPST CMOS analog switch with two normally open (NO) and two normally closed (NC) channels, 100Ω max on-resistance at +5V, 4Ω max channel-to-channel on-resistance match, and rail-to-rail analog signal handling from V+ to GND. It operates from a single +2V to +12V supply and targets precision signal routing in battery-powered instrumentation.
For engineers reviewing the MAX4612CSD datasheet, MAX4612CSD pinout, MAX4612CSD application, or MAX4612CSD equivalent, key selection criteria include its dual NO/NC topology, guaranteed on-resistance flatness (18Ω max), sub-2nA off-leakage at +85°C, TTL/CMOS logic compatibility at +5V, and 14-pin narrow SO package suitability for space-constrained PCB layouts.
Technical Context
The MAX4612CSD implements four independent CMOS transmission gates controlled by digital inputs IN1–IN4, where IN1/IN2 control NO1/NO2 (open when high), and IN3/IN4 control NC3/NC4 (closed when high). Its switch architecture ensures matched RON across all channels and maintains flat on-resistance over the full 0V to V+ analog signal range.
It features internal ESD protection (>2kV per Method 3015.7), supports 300MHz on-channel bandwidth, achieves -60dB off-isolation and -80dB crosstalk at 1MHz, and exhibits only 1pC typical charge injection - critical for sample-and-hold and multiplexed data-acquisition systems requiring minimal signal disturbance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2V to +12V single supply - enables direct integration into 3.3V, 5V, and 9V battery or industrial rails without level shifting. |
| On-Resistance (RON) | 100Ω max at +5V - ensures minimal voltage drop and signal attenuation in low-level analog paths. |
| RON Match (ΔRON) | 4Ω max between channels - guarantees consistent gain/attenuation across multiplexed sensor or audio channels. |
| Off-Leakage Current | 2nA max at +85°C - preserves accuracy in high-impedance circuits like pH sensors or piezoelectric interfaces. |
| Analog Signal Range | Rail-to-rail (0V to V+) - supports full-scale signal switching without clipping in unipolar systems. |
| Logic Thresholds | +0.8V low / +2.4V high at +5V - ensures reliable TTL/CMOS interfacing with microcontrollers and FPGAs. |
| Turn-On/Off Time | 65ns / 28ns max - supports fast multiplexing in real-time data acquisition up to ~10MHz sample rates. |
Pinout & Package
MAX4612CSD is supplied in a 14-pin narrow SO (Small Outline) package with standard 1.27mm pitch, RoHS-compliant lead finish, and thermal performance rated for 640mW at +70°C (derated 8.00mW/°C above).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | NO1, NO3 | Normally open analog terminals - connect only when corresponding IN1/IN3 = HIGH; used for default-open signal paths. |
| 3, 11 | NC2, NC4 | Normally closed analog terminals - disconnect only when corresponding IN2/IN4 = HIGH; used for default-closed fail-safe paths. |
| 2, 4, 9, 10 | COM1–COM4 | Common analog nodes - each pairs with one NO or NC terminal to form a complete SPST switch path. |
| 13, 5, 6, 12 | IN1–IN4 | Digital control inputs - TTL/CMOS-compatible; drive NO/NC state per truth table (LOW = NO open/NC closed). |
| 7 | GND | Digital ground reference - must be tied to system ground; separates logic return from analog return in mixed-signal designs. |
| 14 | V+ | Positive supply for analog and digital circuitry - powers internal CMOS switches and input buffers; bypass with 0.1µF near pin. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from 0V to V+ without clamping - eliminates need for external level-shifting in unipolar sensor front-ends. |
| Guaranteed RON flatness | 18Ω max variation over full signal range - maintains linear gain in precision amplifiers and programmable-gain stages. |
| Low charge injection (1pC typ) | Minimizes voltage glitch on sampled capacitors - essential for high-resolution SAR ADC drivers and hold capacitor stability. |
| 2kV ESD protection | Withstands human-body-model discharge without latch-up - improves robustness in handheld test equipment and field-deployed modules. |
| Automotive-grade variants available | Extended -40°C to +125°C operation option (MAX4612ASD+) - enables use in engine control and ADAS signal conditioning despite not applying to MAX4612CSD itself. |
Applications
| Battery-Powered Data Loggers | Audio Signal Routing |
|---|---|
|
Use Scenario: Multiplexing thermocouple, RTD, and voltage inputs into a shared 16-bit ADC channel under 3.3V battery power. IC Role / Device Role / Timing Role: Quad SPST switch providing channel selection with <2nA leakage to prevent sensor bias error and 100Ω RON to limit gain error. Use Value: Enables 4-channel analog front-end in <5mm² PCB area while maintaining ±0.05% measurement accuracy across temperature. |
Use Scenario: Selecting between microphone, line-in, and headset output paths in portable media players. IC Role / Device Role / Timing Role: Dual NO/NC topology allows simultaneous break-before-make routing to avoid pop/click artifacts during source switching. Use Value: Eliminates need for external relays or discrete MOSFET arrays, reducing BOM count and PCB layer count by 30%. |
| Medical Sensor Interfaces | Industrial PLC I/O Modules |
|
Use Scenario: Isolating ECG electrode inputs during calibration cycles while maintaining DC-coupled signal integrity. IC Role / Device Role / Timing Role: NC switches (NC2/NC4) provide default-closed safety path; NO switches (NO1/NO3) isolate during self-test. Use Value: Meets IEC 60601-1 creepage requirements via galvanic isolation staging and <2nA leakage at body temperature. |
Use Scenario: Configuring analog input ranges (±10V, 0–20mA, 4–20mA) on modular I/O cards using software-controlled front-end scaling. IC Role / Device Role / Timing Role: RON match ≤4Ω ensures identical gain error across all calibrated ranges; rail-to-rail support covers full industrial signal spans. Use Value: Reduces factory calibration time by 40% through hardware-configurable signal paths instead of firmware-trimmed offsets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4611CSD+ | Four NC-only channels; identical RON, leakage, and package - differs only in switch default state. | Suitable where all paths must remain closed until actively opened (e.g., safety interlocks, power sequencing). | Select MAX4611CSD+ when default-closed behavior is required across all four channels. |
| ADG1412BRUZ | Quad SPST, 1.5Ω typical RON at +5V, but 16-pin TSSOP; higher bandwidth (380MHz); no NC/NO mix - pure NO configuration. | Better for high-frequency RF sampling or low-distortion audio, but requires PCB redesign due to pin count and layout. | Choose ADG1412BRUZ only if ultra-low RON and bandwidth outweigh footprint and topology constraints. |
Compared with MAX4611CSD+, the MAX4612CSD provides hybrid NO/NC functionality in the same footprint, enabling break-before-make switching without external logic; versus ADG1412BRUZ, it trades lower RON for integrated topology flexibility and pin compatibility with legacy Maxim designs.
Availability
MAX4612CSD is available at Aetrix Electronics and suitable for battery-operated equipment, audio/video signal routing, and low-voltage data-acquisition systems requiring stable component supply and long-term obsolescence management.
Supply support for MAX4612CSD 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) designs precision analog, mixed-signal, and power-management ICs for industrial, medical, and communications applications.
The MAX461x family was engineered specifically for low-voltage, low-leakage, high-matching analog switching in portable and sensor-rich systems - emphasizing rail-to-rail operation, ESD robustness, and logic compatibility without external level shifters.
FAQ
What is the maximum supply voltage for MAX4612CSD?
The absolute maximum supply voltage (V+) for MAX4612CSD is +13V referenced to GND. Continuous operation is specified from +2V to +12V. Exceeding +13V risks permanent damage. When operating near +12V, a 0.1µF ceramic bypass capacitor must be placed close to the V+ pin to ensure stability and noise immunity. The MAX4612CSD datasheet specifies derating curves for power dissipation above +70°C ambient.
Does MAX4612CSD support rail-to-rail analog signals?
Yes, MAX4612CSD supports rail-to-rail analog signal handling from 0V to V+ on all COM, NO, and NC terminals. This is confirmed in the Absolute Maximum Ratings and Electrical Characteristics tables, where the Analog Signal Range is explicitly listed as 0V to V+. No external clamping diodes are needed for signals within this range, simplifying design in unipolar sensor interfaces and battery-powered systems.
How does the dual NO/NC configuration of MAX4612CSD differ from MAX4610CSD+ and MAX4611CSD+?
MAX4612CSD integrates two normally open (NO1, NO2) and two normally closed (NC3, NC4) switches in one 14-pin SO package. In contrast, MAX4610CSD+ contains four NO switches, and MAX4611CSD+ contains four NC switches. This hybrid topology enables break-before-make switching without external logic, making MAX4612CSD uniquely suited for applications like audio source selection or safety-critical signal path redundancy where default states matter.
What is the on-resistance matching specification for MAX4612CSD?
MAX4612CSD guarantees on-resistance matching (ΔRON) of 4Ω maximum between any two channels at +25°C and across the full operating temperature range. This parameter is measured as RON(max) − RON(min) under identical conditions (e.g., V+ = +5V, ICOM = 1mA). Tight matching ensures uniform gain/attenuation in multi-channel instrumentation and prevents channel-dependent offset errors in precision data acquisition.
Is MAX4612CSD pin-compatible with industry-standard analog switches?
Yes, MAX4612CSD is pin-compatible with the industry-standard 74HC4066 and Maxim's own MAX4066 in the 14-pin narrow SO package. Pin functions (COM/NO/NC/IN/V+/GND) align directly, allowing drop-in replacement in existing designs. However, note that 74HC4066 lacks guaranteed RON matching and has higher leakage; MAX4612CSD delivers superior precision and temperature stability while maintaining mechanical and electrical compatibility.
MAX4612CSD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO/NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 100Ohm
- Channel-to-Channel Matching (ΔRon):
- 1Ohm
- Voltage - Supply, Single (V+):
- 2V ~ 12V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 65ns, 28ns
- -3db Bandwidth:
- 300MHz
- Charge Injection:
- 1pC
- Channel Capacitance (CS(off), CD(off)):
- 16pF, 16pF
- Current - Leakage (IS(off)) (Max):
- 100pA
- Crosstalk:
- -80dB @ 1MHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
MAX4612CSD FAQ
1.How can I place an order for MAX4612CSD through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4612CSD 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 MAX4612CSD reliable?
The price and inventory of MAX4612CSD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4612CSD is usually 5 days.
3.What payment methods are accepted for MAX4612CSD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4612CSD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4612CSD?
MAX4612CSD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4612CSD 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 MAX4612CSD?
For technical support, including MAX4612CSD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4612CSD requirements.
6.How does Aetrix verify that MAX4612CSD is sourced from the original manufacturer or authorized distributors?
All MAX4612CSD 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 MAX4612CSD meets industry standards.
7.What is the process for return or replacement of MAX4612CSD?
All MAX4612CSD units undergo pre-shipment inspection (PSI). If there is an issue with MAX4612CSD, 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 MAX4612CSD part is unused and in its original packaging.
Return procedure for MAX4612CSD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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