My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX4735EUE+
- Part No.:
- MAX4735EUE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX4735EUE+.pdf
- Description:
- IC SWITCH SPDTX2 400MOHM 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,663
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX4735EUE+ from Maxim Integrated is a low-voltage, quad-SPDT analog switch optimized for audio signal routing in portable electronics. It features 0.31Ω typical on-resistance, <0.02% THD into 8Ω loads, and operates from +1.6V to +3.6V over –40°C to +85°C. Its dual-control architecture (INA/INB) enables independent switching of two SPDT pairs per input, supporting speaker multiplexing in space-constrained mobile devices.
For engineers reviewing the MAX4735EUE+ datasheet, MAX4735EUE+ pinout, MAX4735EUE+ application, or MAX4735EUE+ equivalent, key selection criteria include on-resistance flatness (0.06Ω), break-before-make timing (2ns), rail-to-rail analog signal range (0 to VCC), and 16-pin TSSOP package compatibility with 1.8V logic interfaces.
Technical Context
The MAX4735EUE+ implements four fully bidirectional CMOS SPDT switches arranged as two independently controlled sections (INA governs switches 1 & 2; INB governs switches 3 & 4). Each channel supports rail-to-rail analog signals (0V to VCC) and guarantees break-before-make operation with 2ns minimum interval.
Its digital inputs are diode-clamped only to GND, enabling safe operation without VCC applied. On-resistance varies inversely with supply voltage - lowest at 3.6V (0.31Ω typ) and highest at 1.6V - while THD+N remains ≤0.02% into 8Ω and ≤0.015% into 32Ω across the full audio band (20Hz–20kHz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 0.31Ω typical at VCC = 3V, TA = +25°C - enables low-loss audio path with minimal insertion loss into 8Ω speakers. |
| On-Resistance Flatness | 0.06Ω typical - ensures consistent gain across signal swing, critical for low-distortion audio routing. |
| THD+N (8Ω load) | 0.02% max at 20Hz–20kHz - meets high-fidelity requirements for ringtone/melody IC output paths. |
| Supply Voltage Range | +1.6V to +3.6V - compatible with single-cell Li-ion (3.0–3.6V) and dual-cell NiMH (2.4–3.0V) battery systems. |
| Switching Speed (tON/tOFF) | 200ns max - supports fast reconfiguration between audio sources (e.g., codec vs. melody IC) without audible artifacts. |
| Off-Isolation | –66dB at 100kHz - suppresses crosstalk between active and inactive channels in multi-speaker configurations. |
| Digital Input Thresholds | VIH = 1.4V min, VIL = 0.5V max - ensures reliable 1.8V logic compatibility with baseband processors and PMICs. |
Pinout & Package
MAX4735EUE+ is housed in a 16-pin TSSOP package (4.4mm × 5.0mm × 1.2mm body height, 0.65mm pitch), with exposed pad connected to GND for thermal performance and noise immunity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC1) | Normally Closed Terminal, Switch 1 | Fixed connection to COM1 when INA = low; no internal connection if unused. |
| 2 (COM1) | Common Terminal, Switch 1 | Analog signal path hub - routes to NC1 or NO1 based on INA state. |
| 3 (NO1) | Normally Open Terminal, Switch 1 | Connects to COM1 only when INA = high; isolated otherwise. |
| 4 (NC2) | Normally Closed Terminal, Switch 2 | Fixed connection to COM2 when INA = low; complements COM1 path. |
| 5 (COM2) | Common Terminal, Switch 2 | Second analog hub - paired with COM1 for dual-DPDT configuration. |
| 6 (NO2) | Normally Open Terminal, Switch 2 | Connects to COM2 only when INA = high; enables independent channel control. |
| 7 (GND) | Ground Reference | Return path for analog signals and digital logic; must be low-impedance for THD performance. |
| 8 (INB) | Select Input B | Controls COM3/NC3/NO3 and COM4/NC4/NO4 - independent of INA for flexible routing. |
| 9 (NO3) | Normally Open Terminal, Switch 3 | Activated by INB = high; used for third speaker or auxiliary audio path. |
| 10 (COM3) | Common Terminal, Switch 3 | Third analog hub - supports 8:4 multiplexer/demultiplexer topologies. |
| 11 (NC3) | Normally Closed Terminal, Switch 3 | Default path for COM3 when INB = low; provides fail-safe routing. |
| 12 (NO4) | Normally Open Terminal, Switch 4 | Final switched path - completes quad-SPDT set for stereo + mono or dual-output systems. |
| 13 (COM4) | Common Terminal, Switch 4 | Fourth analog hub - enables simultaneous routing of multiple transducers. |
| 14 (NC4) | Normally Closed Terminal, Switch 4 | Default connection for COM4; ensures defined state during power-up or logic reset. |
| 15 (INA) | Select Input A | Primary control for first two switches; TTL/CMOS-compatible with 1.8V logic levels. |
| 16 (VCC) | Positive Power Supply | +1.6V to +3.6V analog/digital supply; requires local 0.1µF ceramic bypass to GND. |
Key Features
| Feature | Design Value |
|---|---|
| 0.31Ω typical on-resistance | Minimizes voltage drop and power loss when driving 8Ω speakers directly from audio codecs. |
| 0.015Ω on-resistance matching | Ensures identical gain across parallel channels - essential for stereo balance and differential signaling. |
| Break-before-make guarantee | Prevents momentary short-circuits during switching - eliminates audible "pop" in speaker outputs. |
| 0.02% THD into 8Ω | Meets stringent audio fidelity requirements for ringtone generation and voice playback in mobile handsets. |
| Rail-to-rail analog signal range | Supports full-swing audio signals from 0V to VCC without clipping - simplifies interface with DACs and amplifiers. |
| 1.8V logic-compatible inputs | Directly interfaces with low-voltage baseband processors and application processors without level shifters. |
Applications
| Cell Phone Audio Routing | Digital Still Camera Playback |
|---|---|
Use Scenario: Dynamically selecting between earpiece, loudspeaker, and headset outputs in GSM/WCDMA handsets. IC Role / Device Role / Timing Role: Quad-SPDT analog switch managing four independent audio paths under baseband processor control. Use Value: Enables single-chip support for multiple acoustic transducers while maintaining <0.02% THD and eliminating mechanical relays. |
Use Scenario: Routing audio from camera's media processor to built-in speaker or external headphones during video playback. IC Role / Device Role / Timing Role: Low-distortion signal router handling 32Ω headphone and 8Ω speaker loads simultaneously. Use Value: Delivers clean audio output without external amplification, reducing BOM count and PCB area in compact camera modules. |
| MP3 Player Output Multiplexing | PDA Speaker/Melody IC Interface |
Use Scenario: Switching between internal speaker and line-out jack in portable music players powered by single-cell Li-ion batteries. IC Role / Device Role / Timing Role: Voltage-scalable analog switch operating down to +1.6V to extend battery life during low-power playback modes. Use Value: Maintains consistent audio quality across battery discharge cycle due to flat RON vs. VCC characteristics. |
Use Scenario: Isolating melody IC output from main audio codec during call alerts while preserving shared speaker path. IC Role / Device Role / Timing Role: Break-before-make switch preventing signal contention between two audio sources sharing one transducer. Use Value: Eliminates audible "click" during alert activation by guaranteeing 2ns minimum break interval. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4736EUE+ | Single-supply quad-SPDT with 0.35Ω RON, 0.025% THD into 8Ω, same 16-pin TSSOP package. | Optimized for lower supply current (0.015µA typ) but slightly higher distortion and on-resistance. | Preferred where ultra-low quiescent current dominates over THD performance. |
| TS5A3157DCKR | Single-channel SPDT with 0.75Ω RON, 1.65V–5.5V supply, SC70-6 package - requires four units for quad function. | Lacks integrated dual-control logic; needs external GPIOs and increases board area by ~3×. | Consider only when footprint constraints prohibit 16-pin packages and discrete routing suffices. |
Compared with MAX4735EUE+, MAX4736EUE+ trades marginal THD degradation for lower ICC, while TS5A3157DCKR sacrifices integration and distortion performance for smaller per-channel size - making MAX4735EUE+ optimal for space-constrained, high-fidelity portable audio routing.
Availability
MAX4735EUE+ is available at Aetrix Electronics and suitable for cell phone audio subsystems, digital still camera playback circuits, and MP3 player output multiplexing requiring stable component supply and long-term industrial availability.
Supply support for MAX4735EUE+ 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, automotive, and consumer applications.
The MAX4735EUE+ belongs to Maxim's low-voltage analog switch product line, engineered specifically for high-fidelity, low-power audio signal routing in battery-operated portable devices.
FAQ
What is the maximum continuous current rating for each switch channel in the MAX4735EUE+?
The MAX4735EUE+ supports ±300mA continuous current per NO_, NC_, or COM_ terminal. This rating allows direct drive of 8Ω loudspeakers up to 2.3VRMS without external buffering. Exceeding this limit risks thermal overstress and parametric drift; peak currents up to ±400mA are permitted at 50% duty cycle for pulsed audio signals. The 16-pin TSSOP package's 755mW power dissipation limit at +70°C must also be observed in high-current applications.
Does the MAX4735EUE+ support rail-to-rail analog signal operation?
Yes, the MAX4735EUE+ supports rail-to-rail analog signal operation from 0V to VCC across all switch terminals (NO_, NC_, COM_). Internal CMOS architecture ensures full-swing signal integrity without clipping, provided signals remain within the absolute maximum ratings (–0.3V to VCC + 0.3V). Clamping diodes protect against overvoltage, but forward-biasing them must be avoided by limiting current per Absolute Maximum Ratings.
How does the MAX4735EUE+ achieve break-before-make switching behavior?
The MAX4735EUE+ guarantees break-before-make operation through internal timing control circuitry that enforces a minimum 2ns interval between opening one path and closing another within each SPDT section. This is verified across temperature (–40°C to +85°C) and supply voltage (1.6V to 3.6V). The feature prevents momentary shorts during switching - critical for eliminating audible "pop" when toggling between audio sources like codec and melody IC outputs.
Can the MAX4735EUE+ operate without a VCC supply applied?
Yes, the MAX4735EUE+ digital inputs (INA and INB) are diode-clamped only to GND, allowing them to be driven safely even when VCC is unpowered. However, analog switching functionality is disabled without VCC, as the CMOS transmission gates require supply voltage to conduct. This feature simplifies system-level power sequencing but does not enable analog signal pass-through in VCC-off states.
What is the significance of 0.015Ω on-resistance matching in the MAX4735EUE+?
The 0.015Ω on-resistance matching (ΔRON) in the MAX4735EUE+ ensures that the resistance difference between any two channels remains tightly bounded across temperature and signal voltage. This minimizes gain mismatch in stereo or differential audio paths, preserving channel balance and preventing phase-induced distortion. It directly supports high-fidelity applications like headphone drivers and dual-speaker systems where amplitude consistency is audibly critical.
MAX4735EUE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Obsolete
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 4:2
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 400mOhm
- Channel-to-Channel Matching (ΔRon):
- 15mOhm
- Voltage - Supply, Single (V+):
- 1.6V ~ 3.6V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 200ns, 180ns
- -3db Bandwidth:
- 20MHz
- Charge Injection:
- 100pC
- Channel Capacitance (CS(off), CD(off)):
- -
- Current - Leakage (IS(off)) (Max):
- 20nA
- Crosstalk:
- -86dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
MAX4735EUE+ FAQ
1.How can I place an order for MAX4735EUE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4735EUE+ 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 MAX4735EUE+ reliable?
The price and inventory of MAX4735EUE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4735EUE+ is usually 5 days.
3.What payment methods are accepted for MAX4735EUE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4735EUE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4735EUE+?
MAX4735EUE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4735EUE+ 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 MAX4735EUE+?
For technical support, including MAX4735EUE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4735EUE+ requirements.
6.How does Aetrix verify that MAX4735EUE+ is sourced from the original manufacturer or authorized distributors?
All MAX4735EUE+ 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 MAX4735EUE+ meets industry standards.
7.What is the process for return or replacement of MAX4735EUE+?
All MAX4735EUE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4735EUE+, 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 MAX4735EUE+ part is unused and in its original packaging.
Return procedure for MAX4735EUE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX4735EUE+ 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…
