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Analog Devices Inc./Maxim Integrated MAX4615CSD
- Part No.:
- MAX4615CSD
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4615CSD.pdf
- Description:
- IC SWITCH SPST-NCX4 10OHM 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,778
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Product details
Overview
MAX4615CSD from Analog Devices is a quad, single-pole/single-throw (SPST), normally closed (NC) CMOS analog switch operating from +2V to +5.5V. It delivers 10Ω max on-resistance at +5V, 1Ω max channel-to-channel on-resistance match, and rail-to-rail signal handling (V+ to GND). Used in low-voltage audio routing and battery-powered data-acquisition systems where leakage-critical NC switching is required.
For engineers reviewing the MAX4615CSD datasheet, MAX4615CSD pinout, MAX4615CSD application, or MAX4615CSD equivalent, key selection criteria include guaranteed NC configuration, sub-6nA off-leakage at +85°C, 12ns turn-on time, and compatibility with TTL/CMOS logic at +5V supply.
Technical Context
The MAX4615CSD implements four independent normally closed analog switches using matched CMOS transmission-gate architecture. Each switch supports bidirectional rail-to-rail analog signals (0V to V+) and features tightly controlled on-resistance flatness (≤1Ω variation over full signal range) and channel matching (≤1Ω max difference).
Logic inputs meet TTL/CMOS thresholds (+0.8V low, +2.4V high at +5V supply), enabling direct interface with microcontrollers and FPGAs without level shifting. Dynamic performance includes 12ns tON, 10ns tOFF, 70MHz on-channel bandwidth, and 6.5pC charge injection - critical for precision sample-and-hold and multiplexed ADC front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | Quad SPST, normally closed (NC) configuration - all four switches conduct when control input is logic low. |
| On-Resistance (max) | 10Ω at +5V supply - ensures minimal signal attenuation and gain error in precision analog paths. |
| On-Resistance Match | 1Ω max between channels - enables accurate channel-to-channel signal routing without calibration. |
| Off-Leakage Current | 6nA max at TA = +85°C - preserves signal integrity in high-impedance sensor interfaces and battery-monitoring circuits. |
| Switching Speed | tON = 12ns, tOFF = 10ns - supports high-speed multiplexing in real-time data acquisition up to ~40MHz effective rate. |
| Analog Signal Range | Rail-to-rail: 0V to V+ - allows full utilization of supply voltage headroom for unipolar signal chains. |
| Logic Compatibility | TTL/CMOS thresholds (+0.8V low, +2.4V high at +5V) - eliminates need for external level translators in mixed-signal systems. |
Pinout & Package
MAX4615CSD is housed in a 14-pin narrow SO (SOIC-N) package with standard 1.27mm pitch, 8.65mm × 3.91mm body size, and JEDEC MS-012AC compliant footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 8, 11 | NC1–NC4 | Normally closed analog terminals - conduct to COMx when corresponding INx is logic low; bidirectional signal path. |
| 2, 4, 9, 10 | COM1–COM4 | Common analog terminals - connect to NCx when switch is closed; serve as shared I/O nodes in multiplexer topologies. |
| 5, 6, 12, 13 | IN1–IN4 | Digital control inputs - active-low logic: low = closed (NC path conductive), high = open (NC path isolated). |
| 7 | GND | Analog/digital ground reference - must be low-impedance and tied to system ground plane to minimize noise coupling. |
| 14 | V+ | Positive supply pin - accepts +2V to +5.5V; powers internal CMOS switch array and logic interface. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from GND to V+ - eliminates clipping in unipolar sensor and DAC output applications. |
| Guaranteed NC configuration | Four dedicated normally closed switches - provides fail-safe closed-path behavior during power-up or logic fault conditions. |
| 1Ω max on-resistance flatness | Ensures consistent gain and linearity across full analog input range - critical for precision instrumentation amplifiers. |
| 6nA max off-leakage at +85°C | Minimizes DC error in high-Z medical sensor front-ends and battery voltage monitoring circuits. |
| 12ns/10ns switching times | Enables >30MSPS multiplexing in multi-channel ADC systems without inter-channel crosstalk-induced settling errors. |
Applications
| Battery-Powered Medical Sensors | Audio Signal Routing |
|---|---|
|
Use Scenario: Multiplexing ECG electrode inputs into a single low-noise instrumentation amplifier while maintaining ultra-low standby current. IC Role / Device Role / Timing Role: Normally closed analog switch providing fail-safe signal continuity during MCU sleep mode and enabling selective channel isolation during active measurement. Use Value: 6nA off-leakage prevents baseline drift in high-impedance biopotential sensing; rail-to-rail operation preserves full dynamic range of ±1.5V ECG signals. |
Use Scenario: Routing stereo line-level audio between multiple sources (phone, PC, DAC) and outputs (headphones, speakers) in portable audio hubs. IC Role / Device Role / Timing Role: Quad NC switch acting as low-distortion analog gate - closed by default to maintain signal path integrity until reconfigured by host controller. Use Value: 0.034% THD ensures transparent audio reproduction; 5pF off-capacitance minimizes high-frequency crosstalk between adjacent channels. |
| Low-Voltage Data Acquisition | Sample-and-Hold Circuits |
|
Use Scenario: Selecting among four temperature sensor outputs (RTD, thermistor, IC sensor, thermocouple amp) feeding a 16-bit SAR ADC. IC Role / Device Role / Timing Role: Precision analog multiplexer with matched on-resistance - ensures identical gain scaling across all channels without per-channel calibration. Use Value: 1Ω max RON match reduces channel-to-channel gain error to <0.1% at 10kΩ source impedance; 6.5pC charge injection limits hold-mode voltage step to <1LSB at 16-bit resolution. |
Use Scenario: Isolating the hold capacitor from input signal source during acquisition phase in a dual-slope or successive-approximation ADC front-end. IC Role / Device Role / Timing Role: Fast-switching NC gate controlling sampling aperture - closes automatically on power-up to prevent capacitor discharge during idle periods. Use Value: 10ns tOFF enables sub-100ns aperture times; 10Ω RON minimizes droop rate during hold phase with typical 10nF capacitors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4616CSD | Two NO + two NC switches in same package - not functionally identical; requires redesign of control logic and PCB routing. | Used when mixed NO/NC topology is needed (e.g., break-before-make sequencing); unsuitable as drop-in NC-only replacement. | Select MAX4615CSD when four independent NC paths are mandatory; MAX4616CSD only if system design accommodates hybrid switch states. |
| ADG1412BRUZ | Quad SPST, NO configuration; 1.5Ω RON match, 1.8nA off-leakage at +85°C; requires +5V logic but supports ±15V analog rails. | Preferred in industrial PLC I/O modules needing bipolar signal support; incompatible with NC-fail-safe requirement. | Choose ADG1412BRUZ for higher voltage analog ranges or lower leakage; MAX4615CSD remains optimal for low-voltage NC-critical designs. |
Compared with MAX4616CSD and ADG1412BRUZ, the MAX4615CSD uniquely guarantees four true NC switches with industry-leading 6nA off-leakage at +85°C and pin-compatible replacement for legacy 74HC4066-based NC layouts - making it irreplaceable in battery-powered fail-safe analog routing.
Availability
MAX4615CSD 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, long-term lifecycle assurance, and traceable sourcing.
Supply support for MAX4615CSD 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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The MAX4615CSD belongs to the MAX461x family of low-voltage, high-speed CMOS analog switches designed specifically for precision, low-power, rail-to-rail signal routing in space- and energy-constrained portable electronics.
FAQ
What is the maximum supply voltage rating for the MAX4615CSD?
The MAX4615CSD has an absolute maximum supply voltage of +6V, but its specified operational range is +2V to +5.5V. Operating above +5.5V risks exceeding safe junction temperature and may cause permanent damage. The device is optimized for low-voltage battery-powered systems, and performance parameters like on-resistance and leakage are guaranteed only within the +2V to +5.5V range. Always observe the +6V absolute maximum limit during transient conditions or power sequencing.
Does the MAX4615CSD support rail-to-rail analog signals?
Yes, the MAX4615CSD supports true rail-to-rail analog signal handling from GND to V+. This means analog voltages applied to COMx, NCx, or NOx pins can span the full supply range without clipping or distortion. The internal CMOS switch architecture maintains low on-resistance and minimal nonlinearity across this range, making the MAX4615CSD suitable for unipolar sensor interfaces, DAC output buffering, and other applications requiring full dynamic range utilization.
How does the normally closed (NC) functionality of the MAX4615CSD behave during power-down?
When V+ is removed or falls below the minimum operating voltage, the MAX4615CSD's internal circuitry loses bias, and all four NC switches default to their passive, normally closed state - meaning COMx remains conductive to NCx even without power. This fail-safe behavior ensures uninterrupted signal continuity in safety-critical or always-on monitoring paths. However, on-resistance rises significantly below +2V, so functional operation is only guaranteed within the rated supply range.
What is the guaranteed on-resistance match between channels for the MAX4615CSD?
The MAX4615CSD guarantees ≤1Ω maximum difference in on-resistance between any two of its four NC switches at +25°C, and ≤1.2Ω over the full 0°C to +70°C operating temperature range. This tight matching is measured under identical conditions (V+ = 4.5V, ICOM = 10mA, VNO/VNC = 3V) and ensures minimal gain mismatch in multi-channel instrumentation and precision multiplexing applications where channel calibration must be minimized.
Can the MAX4615CSD be used with a +3.3V logic supply while operating from a +5V analog supply?
No - the MAX4615CSD uses a single supply (V+) for both analog switching and logic interface. Its digital inputs are referenced to the same V+ pin and require logic thresholds of +0.8V (low) and +2.4V (high) when V+ = +5V. There is no separate VLOGIC pin or level-shifting capability. To interface with +3.3V controllers, ensure the control signals meet the absolute input voltage limits (–0.3V to V+ + 0.03V) and use series resistors if necessary; however, logic compatibility is only guaranteed at +5V supply per datasheet specifications.
MAX4615CSD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 10Ohm
- Channel-to-Channel Matching (ΔRon):
- 200mOhm
- Voltage - Supply, Single (V+):
- 2V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 12ns, 10ns
- -3db Bandwidth:
- 70MHz
- Charge Injection:
- 6.5pC
- Channel Capacitance (CS(off), CD(off)):
- 5pF, 5pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -96dB @ 100kHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
MAX4615CSD FAQ
1.How can I place an order for MAX4615CSD through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4615CSD 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 MAX4615CSD reliable?
The price and inventory of MAX4615CSD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4615CSD is usually 5 days.
3.What payment methods are accepted for MAX4615CSD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4615CSD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4615CSD?
MAX4615CSD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4615CSD 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 MAX4615CSD?
For technical support, including MAX4615CSD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4615CSD requirements.
6.How does Aetrix verify that MAX4615CSD is sourced from the original manufacturer or authorized distributors?
All MAX4615CSD 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 MAX4615CSD meets industry standards.
7.What is the process for return or replacement of MAX4615CSD?
All MAX4615CSD units undergo pre-shipment inspection (PSI). If there is an issue with MAX4615CSD, 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 MAX4615CSD part is unused and in its original packaging.
Return procedure for MAX4615CSD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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