My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX14505AEWC+T
- Part No.:
- MAX14505AEWC+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 12-WFBGA, WLBGA
- Datasheet:
-
MAX14505AEWC+T.pdf
- Description:
- IC SWITCH SPDT X 2 500MOHM 12WLP
- Quantity:
- Payment:
- Shipping:
Inventory:1,603
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX14505AEWC+T from Maxim Integrated is a dual SPDT analog switch optimized for audio signal routing in portable devices, featuring 0 to +VCC analog signal range, 0.36Ω typical on-resistance, ±550mA continuous current handling, and integrated shunt switches for click/pop suppression. It operates from a single +2.3V to +5.5V supply and is used in speaker switching and headphone output path selection.
For engineers reviewing the MAX14505AEWC+T datasheet, MAX14505AEWC+T pinout, MAX14505AEWC+T application, or MAX14505AEWC+T equivalent, this page delivers verified electrical parameters, WLP package layout, functional role in audio amplifier AC-coupling discharge, and validated alternative parts with documented signal-range and shutdown-current differences.
Technical Context
The MAX14505AEWC+T implements two independent SPDT switches controlled by a single CB input and enabled via active-high EN. Its internal negative charge pump (VNEG) is disabled-unlike MAX14504/MAX14505-so analog signal range is limited to 0 to +VCC, eliminating negative rail support but enabling ultra-low shutdown current.
It integrates shunt switches across NO1 and NO2 terminals that activate when those nodes are unconnected to COM, discharging AC-coupling capacitors to suppress transient DC steps. Unlike MAX14505, it draws only 0.15µA (typ) ICC_SHDN at VCC = +3.0V and EN = VCC, making it suitable for battery-sensitive audio subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | 0 to +VCC - Enables safe switching of single-ended audio signals without negative rail; excludes bipolar signal paths. |
| On-Resistance (RON) | 0.36Ω (typ) at VCC = +3.0V - Minimizes insertion loss and thermal drift in high-fidelity audio paths. |
| On-Resistance Flatness | 1mΩ (typ) - Ensures consistent gain and THD+N performance across full signal swing (0 to VCC). |
| Shutdown Supply Current | 0.15µA (typ) at VCC = +3.0V - Extends battery life during audio path standby in portable systems. |
| Click/Pop Suppression | Integrated shunt switches on NO1/NO2 - Automatically discharges precharged coupling caps to eliminate audible transients during source switching. |
| Supply Voltage Range | +2.3V to +5.5V - Compatible with Li-ion, Li-poly, and regulated 3.3V/5V rails in modern mobile platforms. |
| THD+N | 0.001% (20Hz–20kHz) - Meets high-fidelity audio requirements for headphone and line-out applications. |
Pinout & Package
MAX14505AEWC+T uses a 1.56mm × 2.14mm, 12-bump Wafer-Level Package (WLP) with bumps on bottom. Pin mapping is validated per Maxim's official pin description and top-view diagram (Rev 1, 12/08).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| NO1, NO2 | Normally Open analog terminal (Switch 1 & 2) | Connects to audio source (e.g., amplifier output); shunt switch discharges cap when open. |
| NC1, NC2 | Normally Closed analog terminal (Switch 1 & 2) | Remains connected to COM when CB = 0; no shunt function applied. |
| COM1, COM2 | Common analog terminal (Switch 1 & 2) | Output node routed to speaker/headphone; bidirectional signal path. |
| CB | Digital control bit input | Single logic line selects NO or NC path for both switches simultaneously. |
| EN | Active-high enable input | Drives all COM terminals into high-Z when high; enables ultra-low ICC_SHDN mode. |
| VCC | Positive supply input (+2.3V to +5.5V) | Power source for analog switches and logic; requires local 0.1µF ceramic bypass. |
| GND (B2, B3, C3) | Ground reference | Three dedicated ground bumps reduce impedance and improve PSRR (78dB @ 10kHz). |
| NEG | Negative charge-pump output | Internally unused in MAX14505A; must be connected to GND via 3.3nF capacitor per datasheet. |
Key Features
| Feature | Design Value |
|---|---|
| Shunt-switch–enabled click/pop suppression | Automatically discharges NO-side coupling capacitors during switching-no external circuitry or timing control required. |
| 0 to +VCC signal range | Eliminates need for external negative biasing; simplifies PCB layout and reduces BOM count in single-supply audio designs. |
| 0.15µA shutdown current (typ) | Reduces quiescent power in always-on audio subsystems-critical for multi-day battery life in wearables and Bluetooth earbuds. |
| 1mΩ on-resistance flatness | Maintains channel matching and low distortion across full audio band, even at low signal amplitudes near 0V or VCC. |
| 78dB PSRR @ 10kHz | Rejects supply noise from shared system rails, preserving SNR in mixed-signal portable audio SoCs. |
Applications
| Headphone Output Switching | Speaker Path Selection |
|---|---|
Use Scenario: Routing audio from stereo DAC to either 3.5mm jack or internal speaker while avoiding pop noise during mode change. IC Role / Device Role / Timing Role: Dual SPDT switch managing COM1/COM2 outputs; shunt switches discharge coupling caps before reconnection. Use Value: Eliminates audible click/pop without software delay or external discharge resistors-enabling instant user-initiated audio path switching. |
Use Scenario: Selecting between Class D and Class G amplifiers driving same speaker based on volume or battery level. IC Role / Device Role / Timing Role: High-current analog switch (±550mA) isolating amplifier outputs; EN-controlled high-Z state prevents backfeed. Use Value: Prevents cross-conduction and DC offset damage during amplifier handover; 0.36Ω RON avoids power loss in speaker path. |
| MP3 Player Audio Multiplexing | Cell Phone Earpiece/Speaker Switching |
Use Scenario: Sharing single audio codec output among line-out, headphone, and recording input in compact media players. IC Role / Device Role / Timing Role: Low-distortion signal router with 0.001% THD+N; CB/EN enable fast, glitch-free reconfiguration. Use Value: Maintains fidelity across all paths; 12-bump WLP fits tight board space (<3.4mm² footprint) without sacrificing performance. |
Use Scenario: Switching audio output between earpiece receiver and loudspeaker during call mode transitions. IC Role / Device Role / Timing Role: Dual-path switch with independent NO/NC control; shunt function clears residual voltage on earpiece side before engagement. Use Value: Removes "thump" at call connect/disconnect-meeting OEM acoustic quality requirements for premium smartphones. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual SPDT audio switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX14505EWC+ | Supports ±VCC analog range; no ultra-low shutdown current (ICC_SHDN = 15µA typ at VCC = +3.0V). | Required where bipolar audio signals (e.g., differential DAC outputs) must pass without clipping. | Select MAX14505EWC+ only if negative rail capability is mandatory; otherwise MAX14505AEWC+T saves µA-level standby power. |
| MAX14504EWC+ | No shunt switches; analog range ±VCC; ICC_SHDN not specified (operates in high-Z but no low-IQ mode). | Suitable for non-click-critical applications like line-level signal routing where pop suppression is handled externally. | Choose MAX14504EWC+ when cost is prioritized over audio transient suppression and shutdown efficiency. |
Compared with MAX14505EWC+ and MAX14504EWC+, the MAX14505AEWC+T trades ±VCC support and shunt-free operation for 99% lower shutdown current and guaranteed click/pop elimination-making it optimal for battery-constrained, single-supply portable audio where silence during switching is non-negotiable.
Availability
MAX14505AEWC+T is available at Aetrix Electronics and suitable for portable audio equipment, smartphone audio subsystems, and MP3 player design requiring stable component supply, RoHS-compliant packaging, and extended temperature support (–40°C to +85°C).
Supply support for MAX14505AEWC+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 MAX14505A belongs to Maxim's audio switch product line, engineered specifically for low-noise, low-distortion, low-power signal routing in portable audio systems with stringent acoustic and space constraints.
FAQ
What is the analog signal range supported by the MAX14505AEWC+T?
The MAX14505AEWC+T supports an analog signal range of 0 to +VCC-meaning it handles single-ended audio signals referenced to ground, with no negative rail capability. This differs from the MAX14505EWC+, which supports –VCC to +VCC. The 0 to +VCC range simplifies power design in battery-powered devices but excludes true bipolar signal paths. All specifications, including on-resistance flatness and THD+N, are guaranteed across this full range.
Does the MAX14505AEWC+T include click-and-pop suppression, and how does it work?
Yes, the MAX14505AEWC+T includes integrated shunt switches on NO1 and NO2 terminals that automatically discharge AC-coupling capacitors when those nodes are disconnected from COM. This eliminates residual DC voltage steps that cause audible clicks and pops during audio source switching. Unlike external RC networks, this function requires no timing control or additional components-activating inherently upon switch state change per the device's internal logic.
What is the shutdown current of the MAX14505AEWC+T, and under what conditions is it achieved?
The MAX14505AEWC+T achieves a typical shutdown supply current of 0.15µA at VCC = +3.0V when EN is driven high (VCC). This ultra-low ICC_SHDN is a key differentiator versus the MAX14505EWC+ (15µA typ) and reflects its optimization for battery-sensitive portable audio. The specification is production-tested and guaranteed over –40°C to +85°C, with no external biasing or configuration required beyond asserting EN = VCC.
How is the MAX14505AEWC+T packaged, and what are the PCB layout considerations?
The MAX14505AEWC+T uses a 1.56mm × 2.14mm, 12-bump Wafer-Level Package (WLP) with solder bumps on the bottom side. Key layout requirements include placing a 0.1µF ceramic capacitor between VCC and GND as close as possible to the device, connecting NEG to GND via a 3.3nF capacitor, and using three dedicated GND bumps to minimize impedance. No thermal pad or exposed die attach is present-the package relies on bump-to-PCB conduction for thermal management.
Can the MAX14505AEWC+T be used interchangeably with the MAX14505EWC+?
No-MAX14505AEWC+T and MAX14505EWC+ are not interchangeable. While pin-compatible and sharing identical WLP-12 packaging, they differ critically in analog signal range (0 to +VCC vs. –VCC to +VCC) and shutdown current (0.15µA vs. 15µA). Substituting one for the other risks signal clipping in bipolar applications or excessive standby power draw. Always verify signal rail requirements and power budget constraints before replacement.
MAX14505AEWC+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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)
MAX14505AEWC+T FAQ
1.How can I place an order for MAX14505AEWC+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX14505AEWC+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 MAX14505AEWC+T reliable?
The price and inventory of MAX14505AEWC+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX14505AEWC+T is usually 5 days.
3.What payment methods are accepted for MAX14505AEWC+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX14505AEWC+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX14505AEWC+T?
MAX14505AEWC+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX14505AEWC+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 MAX14505AEWC+T?
For technical support, including MAX14505AEWC+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX14505AEWC+T requirements.
6.How does Aetrix verify that MAX14505AEWC+T is sourced from the original manufacturer or authorized distributors?
All MAX14505AEWC+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 MAX14505AEWC+T meets industry standards.
7.What is the process for return or replacement of MAX14505AEWC+T?
All MAX14505AEWC+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX14505AEWC+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 MAX14505AEWC+T part is unused and in its original packaging.
Return procedure for MAX14505AEWC+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX14505AEWC+T Tags
-
SN74LVC1G3157DBVR
Texas Instruments
-
SN74LVC1G66DBVR
Texas Instruments
-
SN74LVC1G66DCKR
Texas Instruments
-
SN74LVC1G3157DSFR
Texas Instruments
-
1P1G3157QDCKRQ1
Texas Instruments
-
SN74LVC2G66DCUR
Texas Instruments
-
SN74LV4052APWR
Texas Instruments
-
74HC4051D,653
Nexperia USA Inc.
-
SN74LV4051APWR
Texas Instruments
-
CD74HC4052PWR
Texas Instruments
-
CD74HC4051PWR
Texas Instruments
-
TS5A3166DBVR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
