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MAX4635ETB+T
Analog Devices Inc./Maxim Integrated
IC SWITCH SPDT X 2 4OHM 10TDFN
2170 Pcs New Original In Stock
2 Circuit IC Switch 2:1 4Ohm 10-TDFN (3x3)
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5.0 / 5.0
- (370 Ratings)
MAX4635ETB+T
Product Overview
6595292
DiGi Electronics Part Number
MAX4635ETB+T-DGManufacturer
Analog Devices Inc./Maxim Integrated
MAX4635ETB+T
Description
IC SWITCH SPDT X 2 4OHM 10TDFNInventory
2170 Pcs New Original In Stock
2 Circuit IC Switch 2:1 4Ohm 10-TDFN (3x3)
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
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MAX4635ETB+T Technical Specifications
Category
Interface, Analog Switches, Multiplexers, Demultiplexers
Packaging
Tape & Reel (TR)
Series
-
Product Status
Active
Switch Circuit
SPDT
Multiplexer/Demultiplexer Circuit
2:1
Number of Circuits
2
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)
14ns, 6ns
-3db Bandwidth
-
Charge Injection
2pC
Channel Capacitance (CS(off), CD(off))
9pF
Current - Leakage (IS(off)) (Max)
100pA
Crosstalk
-67dB @ 1MHz
Operating Temperature
-40°C ~ 85°C (TA)
Mounting Type
Surface Mount
Package / Case
10-WFDFN Exposed Pad
Supplier Device Package
10-TDFN (3x3)
Base Product Number
MAX4635
Datasheet & Documents
HTML Datasheet
MAX4635ETB+T-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
MAX4635ETB+T-DG
MAX4635ETB+TTR
MAX4635ETB+TCT
MAX4635ETB+TDKR
Standard Package
2,500
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
매번 기대를 충족시키는 품질과 정시에 도착하는 배송 덕분에 추천합니다.
Dec 02, 2025
Une expérience d'achat exceptionnelle, produits de qualité et équipe très sympathique.
Dec 02, 2025
Das Support-Team bei DiGi Electronics hat mir nach dem Kauf wertvolle Tipps gegeben, was sehr hilfreich war.
Dec 02, 2025
The shipment arrived well-packaged and was easy to track, giving me peace of mind during the wait.
Dec 02, 2025
The durability of their solutions means I can focus on my creativity without worry.
Dec 02, 2025
Excellent support and lightning-fast delivery.
Dec 02, 2025
The safety features built into their packaging reflect a focus on customer protection.
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Frequently Asked Questions (FAQ)
Can the MAX4635ETB+T be used to switch analog signals in a low-power medical sensor interface operating at 2.0V, and what are the risks of signal distortion due to its on-resistance and capacitance?
Yes, the MAX4635ETB+T is suitable for low-voltage medical sensor applications down to 1.8V, but designers must account for its 4Ω on-resistance and 9pF channel capacitance, which can form unintended RC filters with source or load impedances. In high-impedance sensor circuits (e.g., >10kΩ), this may attenuate high-frequency components or introduce settling time delays. To mitigate risk, buffer the signal with a low-input-bias op-amp before switching or ensure the load impedance is low enough to minimize voltage drop across the switch. Always simulate transient response under worst-case conditions.
Is the MAX4635ETB+T a drop-in replacement for the TS5A23157 from Texas Instruments in a 2:1 SPDT audio signal routing application, and what performance trade-offs should I expect?
While both the MAX4635ETB+T and TS5A23157 are 2:1 SPDT analog switches in similar 10-TDFN packages, they are not direct drop-in replacements without evaluation. The MAX4635ETB+T has lower charge injection (2pC vs. 8pC) and faster turn-off time (6ns vs. 15ns), which benefits high-speed signal integrity, but its higher on-resistance (4Ω vs. 0.9Ω) may cause greater signal attenuation in low-impedance audio paths. Additionally, the MAX4635ETB+T supports a wider supply range (1.8V–5.5V vs. 1.65V–3.6V), making it better for 5V legacy systems. Verify signal fidelity and power supply compatibility before substitution.
What are the reliability concerns when using the MAX4635ETB+T in an industrial environment with frequent thermal cycling between -20°C and 80°C, and how does its MSL rating impact assembly?
The MAX4635ETB+T is rated for -40°C to +85°C operation, so it meets the thermal range requirement, but repeated thermal cycling can stress the 10-TDFN exposed pad package, potentially leading to solder joint fatigue over time. Ensure proper PCB pad design with thermal vias and use solder paste with high fatigue resistance (e.g., SAC305 with Ni doping). The device has MSL 1 (unlimited floor life), eliminating moisture-related assembly risks like popcorning, which simplifies handling in high-volume production. However, always follow reflow profile guidelines to avoid thermal shock during soldering.
How does the crosstalk performance of the MAX4635ETB+T at 1MHz compare to similar switches like the ADG1419, and is it sufficient for high-density multiplexed data acquisition systems?
The MAX4635ETB+T offers -67dB crosstalk at 1MHz, which is competitive but slightly worse than the ADG1419’s -80dB at the same frequency. In high-channel-count data acquisition systems, this difference can become significant when switching small analog signals (e.g., <100mV) near active channels. If your system requires ultra-low interference between channels, consider layout isolation techniques such as ground guard rings or physical separation. For most 12-bit ADC applications, the MAX4635ETB+T is adequate, but for 16-bit or higher precision, evaluate crosstalk impact through bench testing or simulation.
Can I parallel two channels of the MAX4635ETB+T to reduce effective on-resistance for driving a low-impedance load, and what are the potential pitfalls of this approach?
Paralleling two SPDT channels in the MAX4635ETB+T can theoretically halve the on-resistance from 4Ω to ~2Ω, useful for driving loads below 50Ω. However, due to ±100mΩ channel-to-channel matching (ΔRon), current sharing may be uneven, leading to localized heating and reduced reliability. Additionally, simultaneous switching may increase transient glitches due to mismatched turn-on times. If low RON is critical, consider a dedicated low-resistance switch like the MAX4734A (0.5Ω) instead. If paralleling, add small series resistors (e.g., 1–2Ω) to each channel to balance current and minimize risk of oscillation.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
MAX4635ETB+T CAD Models
Analog Devices Inc./Maxim Integrated MAX4635ETB+T PCB symbols & footprints
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