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Analog Devices Inc./Maxim Integrated MAX4996ETG+T
- Part No.:
- MAX4996ETG+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
MAX4996ETG+T.pdf
- Description:
- IC SWITCH DPDT X 3 4OHM 24TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,435
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Product details
Overview
The MAX4996ETG+T from Maxim Integrated is a triple DPDT analog switch IC designed for high-frequency signal routing in portable data interfaces, featuring 2.0Ω typical on-resistance, 6pF typical on-capacitance, and rail-to-rail signal handling across a +2.5V to +5.5V supply - enabling SD2.0/SDIO and USB signal switching in space-constrained mobile designs.
For engineers reviewing the MAX4996ETG+T datasheet, MAX4996ETG+T pinout, MAX4996ETG+T application, or MAX4996ETG+T equivalent, key selection criteria include its active-high enable logic, 670MHz -3dB bandwidth, 24-pin TQFN (3.5mm × 3.5mm) package with exposed paddle, and guaranteed operation from –40°C to +85°C.
Technical Context
The MAX4996ETG+T implements six independently controllable analog switches grouped into three DPDT pairs, each controlled by dedicated CB_ inputs (CB12, CB34, CB56), with global enable via active-high EN. Its BiCMOS process ensures low on-resistance flatness (≤0.5Ω over 0V–VCC) and minimal channel-to-channel skew (40ps).
All six COM terminals support bidirectional signal flow; NO_/NC_ terminals exhibit matched off-capacitance (2.5pF typ) and low crosstalk (–120dB at 1MHz), while shutdown current drops to 0.1µA max when disabled - critical for battery-powered SD card and UART interface management.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 2.0Ω typical - enables low insertion loss (<0.1dB) for 50Ω high-speed digital signals like SD clock and CMD lines. |
| -3dB Bandwidth | 670MHz - supports full-speed USB 1.1 (12Mbps) and SD2.0 (25MHz) signal integrity without attenuation. |
| On-Capacitance (CCOM_ON) | 6pF typical - minimizes signal distortion and timing skew in multi-lane data paths such as SD DAT0–DAT3. |
| Supply Voltage Range | +2.5V to +5.5V - allows direct interfacing with 2.8V baseband processors and 3.3V/5V system rails without level-shifting. |
| Shutdown Current | 0.1µA maximum - extends battery life during SD card hot-swap or UART sleep modes in handheld devices. |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade portable electronics including GPS modules and media players. |
| Package | 24-pin TQFN (3.5mm × 3.5mm, 0.5mm pitch) with exposed paddle - provides thermal efficiency and PCB area savings vs. QFP alternatives. |
Pinout & Package
MAX4996ETG+T uses a 24-pin thin quad flat no-lead (TQFN-EP) package measuring 3.5mm × 3.5mm with 0.5mm pitch and an exposed paddle thermally connected to GND. The pinout supports three independent DPDT switch banks (COM1–COM6, NO1–NO6, NC1–NC6), three digital control inputs (CB12, CB34, CB56), active-high enable (EN), VCC, GND, and EP.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | CB12 / CB34 / CB56 | Digital control inputs selecting NO/NC path for corresponding switch pair - logic-high connects COMx to NOx. |
| 4–6, 16–18 | COM4 / COM5 / COM6 / COM3 / COM2 / COM1 | Common analog terminals - bidirectional signal ports routed to NO or NC based on CB_ state. |
| 7–12, 19–24 | NC6–NC1 / NO1–NO6 | Normally closed / normally open analog terminals - define signal path topology (e.g., SD card vs host routing). |
| 13 | GND | Ground reference and thermal sink for exposed paddle - must be connected to large PCB ground plane. |
| 14 | VCC | Single positive supply input - requires local 0.1µF ceramic bypass capacitor per layout guidelines. |
| 15 | EN | Active-high enable - drives all six switches into high-Z state and reduces ICC to ≤0.5µA when low. |
| EP | Exposed Paddle | Internally tied to GND - soldered to PCB ground for thermal dissipation; not an electrical signal terminal. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal range | 0V to VCC - supports full-swing SD card signaling (e.g., 3.3V CMD line) without clipping or distortion. |
| Break-before-make interval | 10µs - prevents short-circuit transients during SD card reconfiguration or USB port switching. |
| Channel-to-channel crosstalk | –120dB at 1MHz - isolates adjacent SD DAT lines to avoid coupling-induced bit errors. |
| On-resistance match (ΔRON) | 0.2Ω max - ensures consistent impedance across all six channels for balanced differential signaling. |
| Off-isolation | –60dB at 1MHz - blocks leakage between inactive SD card and host paths during hot-plug detection. |
Applications
| SD Card Interface Switching | USB 1.1 Signal Routing |
|---|---|
Use Scenario: Dynamic switching between internal eMMC and external microSD card in smartphones or tablets. IC Role / Device Role / Timing Role: Triple DPDT analog switch managing CLK, CMD, and DAT0–DAT3 signal paths with sub-10µs break-before-make timing. Use Value: Enables dual-storage arbitration without MCU GPIO overhead or additional level shifters - reducing BOM count and PCB layer count. |
Use Scenario: Sharing USB D+/D– lines between host controller and peripheral mode in portable medical devices. IC Role / Device Role / Timing Role: Bidirectional signal router with 670MHz bandwidth preserving USB 1.1 eye diagram integrity. Use Value: Eliminates need for discrete MOSFET arrays while maintaining <1% signal attenuation at 12Mbps data rate. |
| UART Multiplexing | GPS Baseband Interface |
Use Scenario: Selecting between debug UART and Bluetooth module UART on a single processor UART port. IC Role / Device Role / Timing Role: Low-leakage (±250nA) analog switch enabling clean 3.3V logic-level UART switching at up to 3Mbps. Use Value: Prevents cross-talk and bus contention during firmware updates, with <0.5µA shutdown current extending battery runtime. |
Use Scenario: Isolating GPS RF front-end from baseband processor during cold start or antenna calibration sequences. IC Role / Device Role / Timing Role: High-isolation (–60dB) switch disconnecting GPS serial interface (TX/RX) while preserving signal integrity. Use Value: Reduces noise injection into sensitive GPS L1 band receivers - improving time-to-first-fix by >15% in urban canyon environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4996LETG+T | Active-low EN input; otherwise identical electrical specs and pinout. | Requires inverted enable logic from host MCU - unsuitable where EN is driven directly from non-inverting GPIO. | Select MAX4996LETG+T only if system-level enable control is active-low; MAX4996ETG+T avoids external inverters. |
| TMUX1574RTER | Quad SPDT (not triple DPDT); 4.5Ω RON; 10pF CNO_OFF; no exposed paddle. | Lacks integrated CB_ grouping logic - requires three separate control signals vs. two (CB12/CB34/CB56 + EN) for same function. | Use TMUX1574RTER only when board layout permits extra control traces and higher on-capacitance is acceptable for lower-speed UART-only use. |
Compared with MAX4996LETG+T, the MAX4996ETG+T eliminates need for external logic inversion; versus TMUX1574RTER, it delivers 2.2× lower on-capacitance and native triple-DPDT topology - reducing component count and layout complexity in SD/USB multiplexing.
Availability
MAX4996ETG+T is available at Aetrix Electronics and suitable for SD card switching, USB signal routing, and UART multiplexing requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for MAX4996ETG+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) is a U.S.-based semiconductor company specializing in precision analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.
The MAX4996 series belongs to Maxim's high-speed analog switch product line, engineered specifically for low-distortion, low-power signal routing in portable data interfaces - with emphasis on SDIO, USB, and serial peripheral multiplexing.
FAQ
What is the enable logic polarity of the MAX4996ETG+T?
The MAX4996ETG+T features an active-high enable input (EN). When EN is driven high (≥1.4V), all six analog switches are enabled and operate according to CB12/CB34/CB56 states. When EN is low (≤0.5V), all COM_ outputs enter high-impedance state and supply current drops to ≤0.5µA. This differs from the MAX4996LETG+T, which uses active-low EN.
Does the MAX4996ETG+T support bidirectional signal flow?
Yes, the MAX4996ETG+T supports fully bidirectional analog signal routing. Each of the six switches (COM1–COM6 to NOx/NCx) operates symmetrically - meaning voltage and current can flow equally well from COM to NO/NC or from NO/NC to COM. This enables flexible implementation in both SD card host-to-card and card-to-host data paths.
What is the maximum analog signal voltage range supported by the MAX4996ETG+T?
The MAX4996ETG+T supports analog signal voltages from 0V to VCC, where VCC ranges from +2.5V to +5.5V. For example, with VCC = 3.3V, the device passes signals from 0V to 3.3V without clipping or degradation - making it suitable for standard 3.3V SD card interfaces and 2.8V baseband UART lines.
How does the MAX4996ETG+T minimize crosstalk in multi-lane applications like SD DAT0–DAT3?
The MAX4996ETG+T achieves –120dB crosstalk at 1MHz through optimized BiCMOS layout and low 2.5pF NO_/NC_ off-capacitance. In SD applications, this prevents coupling between adjacent DAT lines during high-speed transfers, ensuring reliable CRC validation and reducing retry rates in noisy portable environments.
Is the exposed paddle (EP) on the MAX4996ETG+T electrically connected?
Yes, the exposed paddle (EP) on the MAX4996ETG+T is internally connected to GND and must be soldered to a solid PCB ground plane. It serves exclusively as a thermal path - not a signal or power terminal - and improves thermal resistance (θJC = 5.4°C/W) to sustain continuous 150mA per channel without derating.
MAX4996ETG+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)
MAX4996ETG+T FAQ
1.How can I place an order for MAX4996ETG+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4996ETG+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 MAX4996ETG+T reliable?
The price and inventory of MAX4996ETG+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4996ETG+T is usually 5 days.
3.What payment methods are accepted for MAX4996ETG+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4996ETG+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4996ETG+T?
MAX4996ETG+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4996ETG+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 MAX4996ETG+T?
For technical support, including MAX4996ETG+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4996ETG+T requirements.
6.How does Aetrix verify that MAX4996ETG+T is sourced from the original manufacturer or authorized distributors?
All MAX4996ETG+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 MAX4996ETG+T meets industry standards.
7.What is the process for return or replacement of MAX4996ETG+T?
All MAX4996ETG+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4996ETG+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 MAX4996ETG+T part is unused and in its original packaging.
Return procedure for MAX4996ETG+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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