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Analog Devices Inc./Maxim Integrated MAX4634EUB+T
- Part No.:
- MAX4634EUB+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4634EUB+T.pdf
- Description:
- IC SWITCH SP4T X 1 4OHM 10UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:2,201
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Product details
Overview
The MAX4634EUB+T from Analog Devices is a fast, low-voltage, 4-channel CMOS analog multiplexer with 4Ω (max) on-resistance, 18ns turn-on time, and 11ns turn-off time. It operates from a single +1.8V to +5.5V supply, handles V+ to GND analog signals, and delivers 0.1nA (max) off-leakage at +25°C - ideal for precision signal routing in battery-powered data-acquisition systems.
For engineers reviewing the MAX4634EUB+T datasheet, MAX4634EUB+T pinout, MAX4634EUB+T application, or MAX4634EUB+T equivalent, this device offers verified RON matching (0.3Ω max), RON flatness (1Ω max), -80dB off-isolation at 1MHz, 0.018% THD, and TTL/CMOS-compatible logic thresholds - critical for low-distortion, low-power analog switching in space-constrained designs.
Technical Context
The MAX4634EUB+T implements a CMOS-based 4:1 analog multiplexer architecture with dual address inputs (A0, A1) and an active-high enable (EN). Its switch control logic supports break-before-make operation (8ns typ) and guarantees monotonic RON variation across the full 0V to V+ signal range.
Internal protection diodes clamp analog and digital inputs to V+ and GND, enabling robust overvoltage tolerance up to ±0.3V beyond rails. The device maintains guaranteed performance across -40°C to +85°C with supply current under 1µA and charge injection of only 2pC - essential for sample-and-hold and precision instrumentation interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 4Ω (max) at +5V supply - ensures minimal signal attenuation and gain error in sensor front-ends |
| RON Matching | 0.3Ω (max) between channels - enables precise channel-to-channel signal consistency in multi-sensor systems |
| Turn-On / Turn-Off Time | 18ns / 11ns - supports high-speed multiplexing in real-time data acquisition up to ~30MHz effective rate |
| Off-Isolation | -80dB at 1MHz - suppresses crosstalk between inactive channels in audio/video routing applications |
| Analog Signal Range | V+ to GND - allows rail-to-rail analog signal handling without level-shifting circuitry |
| Supply Voltage Range | +1.8V to +5.5V - enables direct interface with Li-ion battery (3.0–3.7V), 3.3V, and 5V logic domains |
| Total Harmonic Distortion | 0.018% - preserves signal fidelity in audio path and precision measurement circuits |
Pinout & Package
MAX4634EUB+T is housed in a 10-pin µMAX® package (3mm × 3mm, 0.8mm height) with exposed pad not connected internally - requires PCB ground plane connection for thermal and EMI performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A0) | Address Input | Selects one of four NOx inputs per truth table; CMOS/TTL-compatible threshold (0.8V/2.4V at +5V) |
| 2 (NO1) | Normally Open Switch 1 | Analog input channel 1; supports bidirectional V+ to GND signal flow when selected |
| 3 (GND) | Ground Reference | Primary return path for analog and digital circuitry; connects to µMAX exposed pad via PCB |
| 4 (NO3) | Normally Open Switch 3 | Analog input channel 3; matched RON and leakage to NO1/NO2/NO4 |
| 5 (EN) | Enable Input | Active-high control: drives all switches to high-Z when low; eliminates channel leakage during standby |
| 6 (V+) | Positive Supply | +1.8V to +5.5V single supply; requires local 10µF bypass capacitor to GND for stable switching |
| 7 (NO4) | Normally Open Switch 4 | Analog input channel 4; identical electrical specs to other NOx pins |
| 8 (COM) | Common Analog Terminal | Single bidirectional output node; carries routed signal with <1Ω RON flatness over full voltage range |
| 9 (NO2) | Normally Open Switch 2 | Analog input channel 2; shares same RON, leakage, and capacitance specs as NO1/NO3/NO4 |
| 10 (A1) | Address Input | MSB of 2-bit channel select; synchronous with A0 to decode NO1–NO4 per truth table |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed RON flatness | 1Ω (max) over 0V to V+ range - prevents amplitude distortion across signal swing in DC-coupled paths |
| Low off-leakage current | 0.1nA (max) at +25°C - minimizes error in high-impedance sensor interfaces and long-hold sample-and-hold circuits |
| TTL/CMOS logic compatibility | +0.8V VIL / +2.4V VIH thresholds at +5V - eliminates need for level shifters when interfacing with microcontrollers |
| High off-isolation | -80dB at 1MHz - isolates active channel from noise coupling through adjacent inactive switches |
| Low charge injection | 2pC - reduces settling error and droop in precision sampling applications |
Applications
| Battery-Powered Data Acquisition | Audio Signal Routing |
|---|---|
|
Use Scenario: Multiplexing outputs from multiple temperature, pressure, or current sensors into a single ADC input in portable medical monitors or IoT edge nodes. IC Role / Device Role / Timing Role: 4:1 analog switch providing low-RON, low-leakage signal selection synchronized to ADC sampling clock. Use Value: Enables 4-sensor monitoring with <0.1% gain error and <1µV offset drift due to 4Ω RON and 0.1nA leakage. |
Use Scenario: Routing line-level stereo audio signals between multiple sources (microphone, Bluetooth codec, DAC) and output amplifiers in compact smart speakers. IC Role / Device Role / Timing Role: Bidirectional analog multiplexer handling 20Hz–20kHz signals with minimal THD and crosstalk. Use Value: Delivers 0.018% THD and -78dB crosstalk at 1MHz - preserves audio clarity without audible artifacts during source switching. |
| Sample-and-Hold Circuits | Communications Signal Path |
|
Use Scenario: Capturing fast transient waveforms in oscilloscope front-ends or power quality analyzers using switched-capacitor hold stages. IC Role / Device Role / Timing Role: Precision analog switch controlling charge transfer timing with 18ns tON/11ns tOFF and 2pC charge injection. Use Value: Limits aperture uncertainty to <20ns and hold-step error to <1mV for 100pF hold capacitors - critical for ≥12-bit resolution. |
Use Scenario: Selecting between RF front-end receive paths (antenna diversity, band switching) or baseband I/Q signal chains in cellular modems and wireless test equipment. IC Role / Device Role / Timing Role: Low-capacitance (13pF NOOFF, 52pF COMOFF) analog switch minimizing signal reflection and insertion loss. Use Value: Maintains >100MHz bandwidth and -57dB off-isolation at 10MHz - supports wideband communication protocols without signal degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4635EUB+T | 5-channel variant with identical RON, timing, and leakage specs but adds fifth NO5 input and third address bit (A2) | Requires PCB layout change for extra pin; suited for 5-input systems where channel count exceeds MAX4634EUB+T's 4-channel limit | Select MAX4635EUB+T only if five analog inputs must be routed to one COM node without external logic expansion. |
| ADG1414BRUZ | 4-channel, ±15V dual-supply operation; higher RON (1.8Ω typ), slower switching (120ns tON), no 1.8V support | Designed for industrial ±12V/±15V signal conditioning, not low-voltage battery operation | Choose ADG1414BRUZ only for high-voltage, high-precision applications where rail-to-rail 1.8V operation is unnecessary. |
Compared with MAX4634EUB+T, MAX4635EUB+T extends channel count without sacrificing speed or leakage, while ADG1414BRUZ trades low-voltage capability and nanosecond switching for higher voltage tolerance and lower RON in legacy industrial systems.
Availability
MAX4634EUB+T 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 and long-term production continuity.
Supply support for MAX4634EUB+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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The MAX4634EUB+T belongs to Analog Devices' precision analog switch portfolio, engineered for ultra-low RON, nanosecond switching, and sub-nanoampere leakage in space-constrained, low-power signal routing applications.
FAQ
What is the maximum supply voltage rating for the MAX4634EUB+T?
The MAX4634EUB+T has an absolute maximum supply voltage (V+) of +6V. However, its specified operating range is +1.8V to +5.5V. Exceeding +5.5V may cause parametric degradation or reliability risk, even if within absolute maximum limits. Always maintain V+ ≤ +5.5V during normal operation of MAX4634EUB+T to ensure guaranteed RON, leakage, and timing performance.
Does the MAX4634EUB+T support bidirectional analog signal flow?
Yes, the MAX4634EUB+T supports fully bidirectional analog signal flow between COM and any selected NOx terminal. Its CMOS switch architecture allows signals from 0V to V+ to pass in either direction with identical RON, leakage, and distortion characteristics - confirmed by specifications covering VCOM and VNO_ across the full 0V to V+ range in the MAX4634EUB+T datasheet.
How does the enable (EN) pin function on the MAX4634EUB+T?
The EN pin on the MAX4634EUB+T is an active-high enable that controls all four switch channels simultaneously. When EN is low, all NOx inputs and the COM terminal enter high-impedance state, reducing off-leakage to 0.1nA (max). If unused, EN must be tied to V+ to keep switches operational - leaving EN floating is not permitted per MAX4634EUB+T design guidelines.
What is the thermal performance of the MAX4634EUB+T in the µMAX package?
The MAX4634EUB+T in the 10-pin µMAX package has a continuous power dissipation of 330mW at +70°C ambient, derating by 4.1mW/°C above that temperature. Its exposed pad (internally unconnected) must be soldered to a large PCB ground plane to achieve optimal thermal resistance and EMI suppression - critical for maintaining RON stability and low-noise operation in the MAX4634EUB+T.
Can the MAX4634EUB+T operate from a 1.8V supply while maintaining full performance?
Yes, the MAX4634EUB+T is fully specified down to +1.8V supply: RON = 30Ω (typ), tON = 30ns (typ), tOFF = 13ns (typ), and logic thresholds scale to VIL = 0.4V / VIH = 2.0V. All key parameters - including leakage, crosstalk, and THD - remain guaranteed across the entire -40°C to +85°C range at 1.8V, making MAX4634EUB+T suitable for ultra-low-power wearable and sensor-node designs.
MAX4634EUB+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SP4T
- Multiplexer/Demultiplexer Circuit:
- 4:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 4Ohm
- Channel-to-Channel Matching (ΔRon):
- 100mOhm
- Voltage - Supply, Single (V+):
- 1.8V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 18ns, 11ns
- -3db Bandwidth:
- -
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 13pF, 52pF
- Current - Leakage (IS(off)) (Max):
- 100pA
- Crosstalk:
- -78dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-uMAX/uSOP
MAX4634EUB+T FAQ
1.How can I place an order for MAX4634EUB+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4634EUB+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 MAX4634EUB+T reliable?
The price and inventory of MAX4634EUB+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4634EUB+T is usually 5 days.
3.What payment methods are accepted for MAX4634EUB+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4634EUB+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4634EUB+T?
MAX4634EUB+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4634EUB+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 MAX4634EUB+T?
For technical support, including MAX4634EUB+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4634EUB+T requirements.
6.How does Aetrix verify that MAX4634EUB+T is sourced from the original manufacturer or authorized distributors?
All MAX4634EUB+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 MAX4634EUB+T meets industry standards.
7.What is the process for return or replacement of MAX4634EUB+T?
All MAX4634EUB+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4634EUB+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 MAX4634EUB+T part is unused and in its original packaging.
Return procedure for MAX4634EUB+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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