Analog Devices Inc./Maxim Integrated MAX14504EWC+T
- Part No.:
- MAX14504EWC+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 12-WFBGA, WLBGA
- Datasheet:
-
MAX14504EWC+T.pdf
- Description:
- IC SWITCH SPDT X 2 500MOHM 12WLP
- Quantity:
- Payment:

- Shipping:

Inventory:2,500
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Product details
Overview
MAX14504EWC+T from Maxim Integrated is a dual SPDT analog switch optimized for high-fidelity audio routing in portable devices, supporting distortion-free signal throughput from -VCC to +VCC, 0.36Ω typical on-resistance, ±550mA continuous current handling, and operation from a single +2.3V to +5.5V supply. It enables clean speaker or amplifier path switching in space-constrained mobile audio systems.
For engineers reviewing the MAX14504EWC+T datasheet, MAX14504EWC+T pinout, MAX14504EWC+T application, or MAX14504EWC+T equivalent, key selection criteria include its ±VCC signal range (EN = VCC), absence of internal shunt switches (vs. MAX14505 variants), WLP-12 package footprint, and low 23µA max ICC at +5.5V.
Technical Context
The MAX14504EWC+T implements a CMOS-based dual SPDT architecture with independent COM1/COM2 common terminals, each selectable between NC1/NO1 and NC2/NO2 via a shared CB control bit. Its negative rail capability relies on an integrated charge-pump generating VNEG ≈ -0.95×VCC, enabling true bipolar signal handling without external negative supplies.
EN is an active-high enable that places all COM terminals in high-impedance mode when asserted, preserving signal integrity during power sequencing or mute states. Unlike MAX14505A/MAX14506, it draws only 29µA max ICC at VCC = +5.5V and EN = VCC - not the sub-0.2µA shutdown current - and lacks click/pop suppression shunt switches on NO1/NO2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±VCC (EN = VCC) - supports full-rail audio signals without clipping or distortion across entire supply range |
| On-Resistance (RON) | 0.36Ω typ (VCC = +3.0V, ICOM = 50mA) - minimizes insertion loss and thermal drift in audio paths |
| On-Resistance Flatness | 1mΩ typ - ensures consistent gain and THD+N performance over full -VCC to +VCC signal swing |
| Off-Isolation | -84dB at 20kHz - suppresses crosstalk between active and inactive audio channels |
| THD+N | 0.001% (20Hz–20kHz) - preserves fidelity in high-resolution portable playback applications |
| Supply Voltage Range | +2.3V to +5.5V - compatible with Li-ion, Li-poly, and regulated 3.3V/5V system rails |
| Shutdown Current (ICC_SHDN) | Not applicable - MAX14504EWC+T has no ultra-low-power shutdown mode (unlike MAX14505A/MAX14506) |
Pinout & Package
MAX14504EWC+T uses a 1.56mm × 2.14mm, 12-bump Wafer-Level Package (WLP) with bottom-side bumps. The package is RoHS-compliant and designed for fine-pitch PCB assembly in ultra-thin mobile platforms.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 (NO2) | Analog Switch 2, Normally Open Terminal | Output path for Switch 2 when CB = 0; connects to COM2 only when selected |
| A2 (NEG) | Negative Supply Output | Charge-pump output (≈ -0.95×VCC); must be decoupled to GND with 3.3nF capacitor - not for external loading |
| A3 (VCC) | Positive Supply Input | +2.3V to +5.5V main supply; requires local 0.1µF ceramic bypass to GND |
| A4 (NO1) | Analog Switch 1, Normally Open Terminal | Output path for Switch 1 when CB = 0; connects to COM1 only when selected |
| B1 (COM2) | Analog Switch 2, Common Terminal | Bidirectional I/O node for Switch 2 - routes between NC2 and NO2 based on CB state |
| B2 (EN) | Active-High Enable Input | Drives COM1/COM2 into high-Z when logic high; does not affect NC_/NO_ terminal states |
| B3/B4/C3 (GND) | Ground Reference | Three dedicated ground bumps - must be connected to low-impedance system ground plane |
| B4 (COM1) | Analog Switch 1, Common Terminal | Bidirectional I/O node for Switch 1 - routes between NC1 and NO1 based on CB state |
| C1 (NC2) | Analog Switch 2, Normally Closed Terminal | Output path for Switch 2 when CB = 1; connects to COM2 only when selected |
| C2 (CB) | Control Bit Input | Single logic input controlling both SPDT switches synchronously (0 = NO_, 1 = NC_) |
| C4 (NC1) | Analog Switch 1, Normally Closed Terminal | Output path for Switch 1 when CB = 1; connects to COM1 only when selected |
Key Features
| Feature | Design Value |
|---|---|
| ±VCC signal range with EN = VCC | Enables distortion-free routing of AC-coupled audio signals spanning full supply rails - critical for DirectDrive® and Class-G amplifiers |
| No internal shunt switches | Differentiates MAX14504EWC+T from MAX14505 variants - eliminates automatic discharge path, requiring external click/pop mitigation if needed |
| 0.36Ω typical on-resistance | Reduces channel-to-channel gain mismatch and thermal noise in stereo audio paths, especially at low VCC (2.3V) |
| 12-bump WLP package (1.56mm × 2.14mm) | Minimizes PCB area and parasitic capacitance - ideal for thin smartphones and TWS earbud PCBs with tight layout constraints |
| High off-isolation (-84dB @ 20kHz) | Prevents audible crosstalk between left/right channels or speaker/headphone outputs during dynamic switching |
Applications
| Smartphone Audio Routing | MP3 Player Output Switching |
|---|---|
Use Scenario: Dynamically selecting between mono speaker, stereo headphones, and line-out in a smartphone while maintaining DC-blocking cap precharge. IC Role / Device Role / Timing Role: Dual SPDT analog switch routing audio amplifier outputs to multiple destinations under CB/EN control. Use Value: ±VCC signal range prevents clipping on precharged coupling caps; 0.36Ω RON avoids bass attenuation in speaker paths. |
Use Scenario: Switching DAC output between internal speaker and 3.5mm jack in a battery-powered MP3 player. IC Role / Device Role / Timing Role: Low-noise, low-distortion analog multiplexer enabling seamless audio path reconfiguration. Use Value: 0.001% THD+N preserves high-resolution audio quality; WLP-12 footprint saves space in compact handheld form factors. |
| Portable Speaker Mode Selection | Headphone Amplifier Muting |
Use Scenario: Selecting between built-in speaker and external Bluetooth speaker output in a portable Bluetooth speaker dock. IC Role / Device Role / Timing Role: High-current SPDT switch handling up to ±550mA to drive speaker-level signals without thermal derating. Use Value: Continuous 550mA rating supports loudspeaker loads; -40°C to +85°C rating ensures reliability in outdoor use. |
Use Scenario: Muting headphone amplifier output during plug detection or power-down sequences in a wireless headset. IC Role / Device Role / Timing Role: EN-controlled high-impedance isolation of COM terminals to eliminate pop transients during mute transitions. Use Value: EN = high forces COM1/COM2 into high-Z - blocking DC leakage and preventing audible pops without requiring external FETs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX14505EWC+ | Includes internal shunt switches on NO1/NO2; same ±VCC signal range; higher ICC_SHDN (29µA vs. N/A) | Preferred where click/pop suppression is required without external circuitry | Select MAX14505EWC+ when automatic discharge of precharged AC-coupling caps is needed - MAX14504EWC+T lacks this feature |
| MAX14506EWC+ | 0 to +VCC signal range only (no negative rail); ultra-low 0.2µA shutdown current; same WLP-12 package | Suitable for single-supply audio paths where negative voltage handling is unnecessary | Choose MAX14506EWC+ for cost-sensitive, single-ended audio routing with minimal quiescent power - MAX14504EWC+T supports bipolar signals but draws more current in EN = high state |
Compared with MAX14504EWC+T, MAX14505EWC+ adds click/pop suppression at the cost of slightly higher supply current and identical pinout, while MAX14506EWC+ trades ±VCC capability for sub-1µA shutdown - making MAX14504EWC+T the optimal choice for bipolar audio routing where external click/pop control is already implemented.
Availability
MAX14504EWC+T is available at Aetrix Electronics and suitable for smartphone audio routing, portable speaker mode selection, MP3 player output switching, and headphone amplifier muting requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX14504EWC+T 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 demanding industrial, automotive, and consumer applications.
The MAX14504EWC+T belongs to Maxim's high-performance audio switch product line, engineered specifically for distortion-free, rail-to-rail analog signal routing in battery-powered portable audio equipment.
FAQ
What is the maximum continuous current rating for MAX14504EWC+T?
The MAX14504EWC+T supports ±550mA continuous current per channel (NC_, NO_, COM_) and ±850mA pulsed current (1ms, 10% duty cycle). This rating applies across the full -40°C to +85°C operating temperature range and enables direct driving of small speakers or headphone amplifiers without external buffering.
Does MAX14504EWC+T support negative signal voltages?
Yes - when EN = VCC, the MAX14504EWC+T supports analog signal ranges from -VCC to +VCC on all NC_, NO_, and COM_ terminals. This ±VCC capability is enabled by its internal charge-pump generating VNEG ≈ -0.95×VCC, allowing distortion-free passage of AC-coupled audio signals without external negative supplies.
Is MAX14504EWC+T pin-compatible with MAX14505EWC+?
Yes - MAX14504EWC+T and MAX14505EWC+ share identical 12-bump WLP packaging, pinout, and footprint. However, MAX14505EWC+ includes internal shunt switches for click/pop suppression, while MAX14504EWC+T does not. Functional substitution is possible but requires verifying whether shunt functionality is needed in the target design.
What is the on-resistance flatness specification for MAX14504EWC+T?
The MAX14504EWC+T exhibits 1mΩ typical on-resistance flatness (RFLAT(ON)) over the full -VCC to +VCC analog signal range at VCC = +3.0V. This minimal variation ensures consistent gain, phase response, and THD+N performance across the entire audio band - critical for high-fidelity portable playback.
How does the EN pin function on MAX14504EWC+T?
EN is an active-high enable input: when driven high (EN = VCC), all COM1 and COM2 terminals enter a high-impedance state, disconnecting them from both NC_ and NO_ paths. This provides hardware-level muting and isolation without affecting NC_/NO_ terminal biasing - essential for pop-free power sequencing in portable audio systems.
MAX14504EWC+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 500mOhm
- Channel-to-Channel Matching (ΔRon):
- 10mOhm
- Voltage - Supply, Single (V+):
- 2.3V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 60ms, 3µs
- -3db Bandwidth:
- -
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- 65pF
- Current - Leakage (IS(off)) (Max):
- 50nA
- Crosstalk:
- -90dB @ 20kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-WLP (2.14x1.56)
MAX14504EWC+T FAQ
1.How can I place an order for MAX14504EWC+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX14504EWC+T 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 MAX14504EWC+T reliable?
The price and inventory of MAX14504EWC+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX14504EWC+T is usually 5 days.
3.What payment methods are accepted for MAX14504EWC+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX14504EWC+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX14504EWC+T?
MAX14504EWC+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX14504EWC+T 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 MAX14504EWC+T?
For technical support, including MAX14504EWC+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX14504EWC+T requirements.
6.How does Aetrix verify that MAX14504EWC+T is sourced from the original manufacturer or authorized distributors?
All MAX14504EWC+T 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 MAX14504EWC+T meets industry standards.
7.What is the process for return or replacement of MAX14504EWC+T?
All MAX14504EWC+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX14504EWC+T, 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 MAX14504EWC+T part is unused and in its original packaging.
Return procedure for MAX14504EWC+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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