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Analog Devices Inc./Maxim Integrated MAX4515CSA
- Part No.:
- MAX4515CSA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4515CSA.pdf
- Description:
- IC SWITCH SPST-NCX1 20OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,687
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Product details
Overview
MAX4515CSA from Maxim Integrated is a normally closed (NC), single-pole/single-throw (SPST), CMOS analog switch optimized for low-voltage, rail-to-rail signal routing. It operates from a single +2V to +12V supply, delivers 10Ω on-resistance at +12V, supports ≤1nA off-leakage at +25°C, and switches in 100ns turn-off time-ideal for precision audio routing and battery-powered data-acquisition front-ends.
For engineers reviewing the MAX4515CSA datasheet, MAX4515CSA pinout, MAX4515CSA application, or MAX4515CSA equivalent, key selection criteria include guaranteed NC state at power-up, SOT23-5 package compatibility with space-constrained PCBs, low charge injection (10pC), TTL/CMOS logic compatibility at +5V, and verified performance across 0°C to +70°C industrial temperature range.
Technical Context
The MAX4515CSA implements a complementary CMOS transmission gate architecture with internal level-shifting logic that translates 0.8V–2.4V input thresholds into full-rail analog gate control. Its NC configuration ensures default conduction between COM and NC pins when IN is low, eliminating startup glitches in fail-safe signal paths.
ESD protection diodes are integrated between each analog terminal (COM, NC, NO) and both V+ and GND, enabling robust ±2000V HBM ESD tolerance while defining the absolute maximum analog signal range as –0.3V to (V+ + 0.3V). Leakage currents are dominated by reverse-biased diode conduction, not channel conduction, and scale predictably with temperature and supply voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | Normally closed (NC) SPST analog switch - maintains continuity between COM and NC at power-down or logic-low IN. |
| Supply Range | +2V to +12V single supply - enables direct interface with Li-ion, 3.3V, and 5V systems without level shifters. |
| On-Resistance | 10Ω max at +12V - ensures <0.1% gain error in 1kΩ impedance signal paths; flatness ≤3Ω over signal range. |
| Off-Leakage Current | 1nA max at +25°C - preserves accuracy in high-impedance sensor interfaces and sample-hold circuits. |
| Charge Injection | 10pC max - limits voltage glitch on capacitive loads (e.g., ADC inputs) to <10mV with 1nF hold capacitor. |
| Switching Speed | tOFF = 100ns max, tON = 150ns max - supports multiplexing up to ~5MHz without significant settling delay. |
| Logic Compatibility | 0.8V–2.4V input thresholds at +5V supply - directly accepts standard TTL/CMOS outputs without external biasing. |
Pinout & Package
SOT23-5 surface-mount package (3.0mm × 1.4mm × 1.1mm body, 0.95mm pitch), rated for 0°C to +70°C operation, with exposed pad not internally connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - NC | Analog switch terminal (normally closed) | Internally tied to COM when IN = low; open-circuit when IN = high. Bidirectional signal path. |
| 2 - IN | Digital control input | Active-low logic input: low = NC closed, high = NC open. 0.8V/2.4V thresholds at +5V supply. |
| 3 - GND | Ground reference | Common return for analog signals and digital logic; internal substrate tied to V+ (not GND). |
| 4 - V+ | Positive supply | Single supply for analog switch core and logic translator; sets rail-to-rail analog range and on-resistance. |
| 5 - COM | Analog switch common terminal | Shared node for NC and NO paths; bidirectional, supports rail-to-rail signals from GND to V+. |
Key Features
| Feature | Design Value |
|---|---|
| Fail-safe NC default state | Guarantees signal continuity at power-up or logic fault - critical for safety-critical audio mute or sensor monitoring paths. |
| Rail-to-rail analog signal handling | Supports input/output voltages from GND to V+ without clipping - eliminates need for external bias networks in AC-coupled systems. |
| Low 10pC charge injection | Minimizes voltage step on sampled capacitors - enables use in precision 12-bit+ SAR ADC front-ends without additional correction. |
| Break-before-make timing | tON > tOFF at +5V ensures no momentary short between NC and NO during transition - prevents signal crosstalk in dual-path routing. |
| 100% tested at +25°C, correlated at extremes | SOT23-5 variants undergo full parametric test at room temperature; min/max specs guaranteed via design correlation for 0°C to +70°C range. |
Applications
| Audio Signal Muting | Battery-Powered Data Acquisition |
|---|---|
Use Scenario: Muting speaker output during power-on reset or Bluetooth pairing in portable speakers. IC Role / Device Role / Timing Role: Normally closed analog switch placed in series with audio line; opens only upon confirmed system readiness. Use Value: Prevents pop/click transients by ensuring default conduction until controlled mute activation - leverages MAX4515CSA's NC state and <100ns switching. | Use Scenario: Multiplexing thermistor, RTD, and potentiometer inputs into a single ADC channel in handheld test equipment. IC Role / Device Role / Timing Role: Low-leakage SPST switch isolating high-impedance sensors from ADC input during inactive cycles. Use Value: 1nA off-leakage avoids measurement drift in >1MΩ sensor bridges; 10Ω on-resistance adds negligible error in 10kΩ source impedance paths. |
| PCMCIA Card Interface | Modem Line Switching |
Use Scenario: Isolating legacy parallel port signals from PCMCIA card edge connector during hot-plug events. IC Role / Device Role / Timing Role: NC switch inserted between host bus and card interface; opens only after card enumeration completes. Use Value: Ensures safe default connection during insertion; 20nA off-leakage at +85°C maintains signal integrity in uncooled laptop bays. | Use Scenario: Routing POTS line signals between codec, DAA, and RJ-11 jack in embedded VoIP modems. IC Role / Device Role / Timing Role: Low-distortion analog switch managing hybrid circuit connections under software control. Use Value: –90dB off-isolation suppresses echo path leakage; THD <0.01% at 1kHz enables clean voiceband transmission. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4517ESA | Dual-supply operation (±5V), SO-8 package, NC configuration - lacks single-supply +2V–+12V flexibility. | Required where bipolar signal swing or legacy ±5V systems dominate; unsuitable for Li-ion powered designs. | Select MAX4517ESA only when dual supplies are available and SOT23-5 footprint is not required. |
| ADG821BRMZ | Single-supply +1.8V–+5.5V, 0.5Ω on-resistance at +5V, 1.2mm × 1.2mm 6-lead SC70 - lower RON but narrower voltage range. | Better for ultra-low-voltage microcontroller I/O expansion; cannot replace MAX4515CSA in +9V/+12V sensor front-ends. | Choose ADG821BRMZ for sub-3.3V systems needing minimal on-resistance; retain MAX4515CSA for wider supply adaptability. |
Compared with MAX4517ESA and ADG821BRMZ, the MAX4515CSA uniquely balances wide single-supply operation (+2V to +12V), NC default safety, SOT23-5 compactness, and verified 1nA leakage - making it optimal for cost-sensitive, battery-operated equipment requiring robust fail-safe behavior without dual supplies or ultra-low-voltage constraints.
Availability
MAX4515CSA is available at Aetrix Electronics and suitable for battery-operated equipment, audio signal routing, and low-voltage data-acquisition systems requiring stable component supply across industrial temperature grades.
Supply support for MAX4515CSA 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, communications, and consumer applications.
The MAX4514/MAX4515 family targets low-voltage, low-leakage analog signal routing in space- and power-constrained systems - emphasizing fail-safe NC/NO configurations, rail-to-rail operation, and robust ESD tolerance for portable and embedded use cases.
FAQ
What is the default switch state of the MAX4515CSA at power-up?
The MAX4515CSA is a normally closed (NC) switch, meaning it conducts between COM and NC terminals when the IN pin is low or un-driven. At power-up with IN floating or pulled low, the MAX4515CSA remains closed - ensuring fail-safe continuity in audio mute or sensor monitoring paths without external pull-up resistors.
Does the MAX4515CSA support rail-to-rail analog signals?
Yes, the MAX4515CSA supports rail-to-rail analog signals from GND to V+. Its CMOS transmission gate architecture allows input and output voltages equal to the supply rails, eliminating the need for external biasing networks in AC-coupled or DC-coupled signal chains - a key capability confirmed in the MAX4515CSA electrical characteristics table for VCOM, VNC ranges.
What is the maximum allowable supply voltage for the MAX4515CSA?
The absolute maximum rating for V+ on the MAX4515CSA is +13V, but the recommended operating range is +2V to +12V. Operation at +12V yields minimum on-resistance (10Ω), while exceeding +12V risks permanent damage per the Absolute Maximum Ratings table - always limit V+ to ≤+12V in functional designs using MAX4515CSA.
How does charge injection affect system performance with the MAX4515CSA?
Charge injection of 10pC max in the MAX4515CSA causes a voltage glitch ∆VOUT = Q / CL on capacitive loads. For example, with a 1nF sampling capacitor, the glitch is ≤10mV - acceptable for 12-bit ADCs (LSB ≈ 2.4mV at 5V full-scale) but may require blanking or calibration in 14-bit+ systems using MAX4515CSA in sample-hold configurations.
Is the SOT23-5 package of the MAX4515CSA pin-compatible with other Maxim analog switches?
The MAX4515CSA in SOT23-5 shares pinout with MAX4514CSA (NO version) but is not pin-compatible with MAX4516/MAX4517 (dual-supply, SO-8). Pin mapping is strictly defined in the MAX4515CSA datasheet top-view diagram: Pin 1 = NC, Pin 2 = IN, Pin 3 = GND, Pin 4 = V+, Pin 5 = COM - verify against layout before substitution.
MAX4515CSA 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:
- 1
- On-State Resistance (Max):
- 20Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 2V ~ 12V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 150ns, 100ns
- -3db Bandwidth:
- -
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 14pF, 14pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX4515CSA FAQ
1.How can I place an order for MAX4515CSA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4515CSA 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 MAX4515CSA reliable?
The price and inventory of MAX4515CSA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4515CSA is usually 5 days.
3.What payment methods are accepted for MAX4515CSA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4515CSA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4515CSA?
MAX4515CSA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4515CSA 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 MAX4515CSA?
For technical support, including MAX4515CSA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4515CSA requirements.
6.How does Aetrix verify that MAX4515CSA is sourced from the original manufacturer or authorized distributors?
All MAX4515CSA 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 MAX4515CSA meets industry standards.
7.What is the process for return or replacement of MAX4515CSA?
All MAX4515CSA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4515CSA, 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 MAX4515CSA part is unused and in its original packaging.
Return procedure for MAX4515CSA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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