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Analog Devices Inc./Maxim Integrated MAX4996LETG+T
- Part No.:
- MAX4996LETG+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
MAX4996LETG+T.pdf
- Description:
- IC SWITCH DPDT X 3 4OHM 24TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,351
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Product details
Overview
MAX4996LETG+T from Maxim Integrated is a triple DPDT analog switch IC designed for high-frequency signal routing in portable data interfaces. It operates from +2.5V to +5.5V, delivers 2.0Ω (typ) on-resistance, 6pF (typ) on-capacitance, and supports 670MHz -3dB bandwidth - enabling clean SDIO/UART/USB signal switching in space-constrained handheld devices.
For engineers reviewing the MAX4996LETG+T datasheet, MAX4996LETG+T pinout, MAX4996LETG+T application, or MAX4996LETG+T equivalent, this device is selected for low-leakage, rail-to-rail analog switching with active-low enable control, high off-isolation (-60dB), and minimal crosstalk (-120dB) in battery-powered consumer electronics.
Technical Context
The MAX4996LETG+T implements six independent bidirectional analog switches grouped into three DPDT pairs, each controlled by dedicated CB_ logic inputs (CB12, CB34, CB56). Its BiCMOS process enables stable on-resistance flatness (≤0.5Ω variation over 0V–VCC) and low temperature drift across -40°C to +85°C.
It features an active-low enable input (EN) that places all COM_ terminals in high-impedance state and reduces supply current to 0.1µA (max), supporting low-power system-level power gating. Logic thresholds are rail-to-rail compatible, and all analog pins handle signals from GND to VCC without degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.5V to +5.5V - supports direct interface with 2.8V/3.3V/5V system rails without level shifters |
| On-Resistance (RON) | 2.0Ω (typ) - minimizes voltage drop and signal attenuation in high-current analog paths |
| On-Capacitance (CCOM_ON) | 6pF (typ) - preserves signal integrity up to 670MHz bandwidth in high-speed digital interfaces |
| Off-Isolation | -60dB at 1MHz - prevents coupling between active and inactive signal paths in multiplexed SD/USB lines |
| Shutdown Supply Current | 0.1µA (max) - enables ultra-low-power sleep mode in battery-operated GPS and PMP systems |
| Crosstalk | -120dB at 1MHz - ensures channel-to-channel signal separation critical for simultaneous UART/SDIO operation |
| Operating Temperature | -40°C to +85°C - qualified for industrial-grade portable electronics including cell phones and PDAs |
Pinout & Package
MAX4996LETG+T is housed in a 24-pin TQFN package (3.5mm × 3.5mm, exposed paddle), optimized for high-density PCB layouts in mobile applications. The exposed paddle must be soldered to a solid ground plane for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 (CB12/CB34/CB56) | Digital control inputs | Select NO/NC path pairing per DPDT group; logic-high connects COMx to NOx, logic-low to NCx |
| 4–6, 16–18 (COM4–COM6, COM3–COM1) | Analog common terminals | Bidirectional signal ports - serve as inputs or outputs depending on system topology |
| 7–12, 19–24 (NC6–NC1, NO1–NO6) | Normally closed / normally open terminals | Fixed analog I/O endpoints; NCx connected when CBx = low, NOx when CBx = high |
| 13 (GND) | Ground reference | Primary return path for analog and digital currents; connects to exposed paddle |
| 14 (VCC) | Positive supply | Single power rail for analog and logic sections; requires local 0.1µF ceramic bypass |
| 15 (EN) | Active-low enable | Drives all switches into high-Z state and cuts ICC to ≤0.5µA when pulled high |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports full 0V to VCC swing on all NO_, NC_, COM_ pins - eliminates need for external biasing in SD card CMD/DAT lines |
| Low on-resistance flatness | ≤0.5Ω variation across 0V–VCC range - maintains consistent insertion loss in audio and RF front-end switching |
| Break-before-make timing | 10µs interval - prevents momentary short-circuits during signal reconfiguration in USB D+/D- paths |
| Ultra-low leakage current | ±250nA max on-leakage at 5.5V - avoids DC offset errors in precision sensor or audio signal chains |
| ESD robustness | ±2kV HBM - withstands handling and board-level ESD events in handheld assembly environments |
Applications
| SD Card Interface Switching | USB 2.0 Data Line Switching |
|---|---|
Use Scenario: Dynamic routing of SDIO bus signals (CLK, CMD, DAT0–DAT3) between baseband processor and removable SD card slot. IC Role / Device Role / Timing Role: Triple DPDT analog switch providing signal path selection with sub-100ns turn-on time and <10µs break-before-make. Use Value: Enables single-slot dual-SD-card support or shared SDIO/UART resource allocation without signal degradation. |
Use Scenario: Multiplexing USB D+ and D- lines between host controller and multiple peripheral connectors (e.g., micro-USB and USB-C). IC Role / Device Role / Timing Role: Bidirectional analog switch preserving 480Mbps USB 2.0 eye diagram integrity via 6pF on-capacitance and 670MHz bandwidth. Use Value: Reduces PCB layer count by eliminating duplicate USB PHYs while maintaining full-speed compliance. |
| UART Signal Path Selection | GPS Baseband Interface Switching |
Use Scenario: Selecting between two UART peripherals (e.g., Bluetooth module and modem) sharing a single processor UART port. IC Role / Device Role / Timing Role: Low-leakage analog switch with ±250nA on-leakage - prevents false start-bit detection during idle states. Use Value: Eliminates need for software-controlled GPIO-based UART arbitration, reducing firmware complexity and latency. |
Use Scenario: Isolating GPS RF frontend from baseband processor during non-GPS operation to reduce noise coupling. IC Role / Device Role / Timing Role: High off-isolation (-60dB) and low crosstalk (-120dB) analog switch placed in GPS serial control path (TX/RX/CTS/RTS). Use Value: Prevents baseband switching noise from degrading GPS sensitivity below -157dBm. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4996ETG+T | Active-high EN input vs. MAX4996LETG+T's active-low EN; identical RON, capacitance, and package | Requires inverted enable logic in MCU firmware or external inverter; otherwise pin- and function-compatible | Select MAX4996ETG+T only if system-level enable signal is active-high and no logic inversion is available |
| TMUX1574RTER | Single 4-channel SPDT (vs. triple DPDT); 3.5Ω RON, 8pF CNO, 500MHz bandwidth, 1.8V–5.5V supply | Lacks integrated triple-DPDT structure - requires two devices to match MAX4996LETG+T's six-switch capability | Choose TMUX1574RTER only when lower channel count suffices and layout area allows dual-device placement |
Compared with MAX4996ETG+T, the MAX4996LETG+T simplifies enable logic integration in low-voltage processors with open-drain or active-low reset outputs; versus TMUX1574RTER, it delivers higher integration density and superior bandwidth for SDIO/USB 2.0 signal routing.
Availability
MAX4996LETG+T is available at Aetrix Electronics and suitable for SD card switching, USB signal routing, and UART multiplexing requiring stable component supply in high-volume portable electronics production.
Supply support for MAX4996LETG+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, communications, and consumer applications.
The MAX4996LETG+T belongs to Maxim's high-performance analog switch product line, engineered specifically for low-capacitance, low-resistance signal routing in portable data interfaces such as SDIO, USB, and UART.
FAQ
What is the enable logic polarity of the MAX4996LETG+T?
The MAX4996LETG+T features an active-low enable input (EN). When EN is driven high, all six analog switches enter high-impedance state and supply current drops to ≤0.5µA. Driving EN low enables normal switching operation. This differs from the MAX4996ETG+T, which uses active-high enable logic.
Does the MAX4996LETG+T support rail-to-rail analog signal operation?
Yes, the MAX4996LETG+T supports rail-to-rail analog signal handling from GND to VCC on all NO_, NC_, and COM_ terminals. This allows direct interfacing with 2.5V–5.5V digital I/O without external level-shifting circuitry - a key requirement for SD card and USB signal integrity.
What is the maximum signal frequency supported by the MAX4996LETG+T?
The MAX4996LETG+T provides a -3dB bandwidth of 670MHz under standard test conditions (RL = RS = 50Ω, CL = 5pF). This makes it suitable for full-speed USB 2.0 (480Mbps), SDIO 2.0, and high-speed UART applications where signal fidelity must be preserved across the entire data spectrum.
How does the MAX4996LETG+T minimize crosstalk between channels?
The MAX4996LETG+T achieves -120dB crosstalk at 1MHz through optimized BiCMOS layout and guard-ring isolation between adjacent switch channels. This performance ensures that simultaneous switching of UART and GPS serial lines does not induce measurable interference in sensitive RF receive paths.
Can the MAX4996LETG+T be used in battery-powered devices with strict power budgets?
Yes - the MAX4996LETG+T draws only 0.1µA (max) in shutdown mode and 1–10µA during active operation (depending on VCC and logic levels). Its ability to operate down to +2.5V and interface directly with low-voltage processors makes it ideal for extended-life portable media players and GPS trackers.
MAX4996LETG+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- DPDT
- Multiplexer/Demultiplexer Circuit:
- 2:2
- Number of Circuits:
- 3
- On-State Resistance (Max):
- 4Ohm
- Channel-to-Channel Matching (ΔRon):
- 100mOhm
- Voltage - Supply, Single (V+):
- 2.5V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 100µs, 6µs
- -3db Bandwidth:
- 670MHz
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- 2.5pF, 4pF
- Current - Leakage (IS(off)) (Max):
- 250nA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-TQFN (4x4)
MAX4996LETG+T FAQ
1.How can I place an order for MAX4996LETG+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4996LETG+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 MAX4996LETG+T reliable?
The price and inventory of MAX4996LETG+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4996LETG+T is usually 5 days.
3.What payment methods are accepted for MAX4996LETG+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4996LETG+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4996LETG+T?
MAX4996LETG+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4996LETG+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 MAX4996LETG+T?
For technical support, including MAX4996LETG+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4996LETG+T requirements.
6.How does Aetrix verify that MAX4996LETG+T is sourced from the original manufacturer or authorized distributors?
All MAX4996LETG+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 MAX4996LETG+T meets industry standards.
7.What is the process for return or replacement of MAX4996LETG+T?
All MAX4996LETG+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4996LETG+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 MAX4996LETG+T part is unused and in its original packaging.
Return procedure for MAX4996LETG+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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