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Home > Products > Integrated Circuits (ICs) > Interface > Analog Switches, Multiplexers, Demultiplexers

STMicroelectronics STG3692QTR

Name: STG3692QTR
Brand: STMicroelectronics
SKU: STG3692QTR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STG3692QTR

Manufacturer:: STMicroelectronics

Category:: Analog Switches, Multiplexers, Demultiplexers

Package:: 16-UFQFN Exposed Pad

Datasheet:: STG3692QTR.pdf

Description:: IC SWITCH SPDT X 4 5.2OHM 16QFN

Quantity:: RFQ Add To RFQ list

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Product details

Overview

STG3692QTR from STMicroelectronics is a high-speed CMOS quad SPDT analog switch in QFN16L (2.6×1.8 mm) package, designed for USB 2.0 high-speed (480 Mbps) signal routing in portable systems. It operates from 1.65 V to 4.3 V, delivers 500 MHz bandwidth, 4.6 Ω on-resistance at 4.3 V, and consumes only 3 µA quiescent current at 85 °C.

For engineers reviewing the STG3692QTR datasheet, STG3692QTR pinout, STG3692QTR application, or STG3692QTR equivalent, this device supports low-voltage, high-bandwidth analog switching with break-before-make timing, ultra-low power, and USB-compliant jitter performance - critical for mobile interface multiplexing and battery-powered signal path control.

Technical Context

The STG3692 implements four independent SPDT switches using silicon gate C2MOS technology, each controlled by dedicated SEL inputs (1-2SEL and 3-4SEL) that determine pole connection between two throws (S1/S2) and common ports (D1–D4). Its architecture enables simultaneous channel selection without internal coupling.

Each switch exhibits matched R_ON flatness ≤1.6 Ω across 0–V_CC, <17 ns turn-off time at 4.3 V, and <3 ps channel-to-channel skew - enabling precise timing alignment in differential USB data lanes and high-fidelity analog video paths.

Key Specifications

Parameter	Value and Actual Design Meaning
Bandwidth (-3 dB)	500 MHz at VCC = 3.0–4.3 V - supports full USB 2.0 high-speed signaling without attenuation.
R_ON (max)	4.6 Ω at VCC = 4.3 V, TA = 25 °C - ensures minimal insertion loss in 50 Ω systems.
t_OFF (max)	17 ns at VCC = 4.3 V - enables fast channel reconfiguration for dynamic signal routing.
ICC (max)	3 µA at TA = 85 °C - extends battery life in always-on portable interfaces.
OIRR (min)	-79 dB at 1 MHz - prevents crosstalk-induced data corruption in multi-channel USB hubs.
Charge injection	5 pC at VCC = 4.3 V - minimizes voltage glitch during switching in precision ADC/DAC paths.
USB jitter (TJ)	130 ps at 480 Mbps - meets USB-IF eye diagram mask requirements for signal integrity.

Pinout & Package

Package: QFN16L (2.6 × 1.8 mm), thermally enhanced VFQFPN with exposed pad (must be soldered to floating copper plane, not connected to VCC or GND).

Pin/Terminal	Circuit Role	Design Meaning
1, 15	1S1 / 1S2	Independent throw terminals for Channel 1 SPDT switch - routed to D1 via SEL logic.
4, 6	2S1 / 2S2	Throw terminals for Channel 2 - selected by 1-2SEL to connect/disconnect from D2.
7, 9	3S1 / 3S2	Throw terminals for Channel 3 - controlled by 3-4SEL to route to D3.
12, 14	4S1 / 4S2	Throw terminals for Channel 4 - connects to D4 when corresponding SEL is asserted.
5, 8, 13, 16	D1 / D2 / D3 / D4	Common output ports - serve as bidirectional analog signal paths for USB DP/DM or video signals.
3, 10	1-2SEL / 3-4SEL	Digital control inputs - high/low logic selects S1 or S2 connection per pair; 1.8 V compatible at VCC ≥ 2.3 V.
2	VCC	Single positive supply (1.65–4.3 V) - powers all four switches and internal logic simultaneously.
11	GND	Analog/digital ground reference - shared return for all channels and control circuitry.

Key Features

Feature	Design Value
Ultra-low ICC	3 µA at 85 °C - reduces system standby power in always-connected USB peripherals.
Break-before-make delay	≤3 ns at VCC = 4.3 V - eliminates short-circuit transients during channel switching.
USB 2.0 compliance	130 ps total jitter, 26 ps channel skew - satisfies USB-IF electrical conformance for host/device ports.
ESD robustness	±2000 V HBM - protects against electrostatic discharge in handheld device assembly and field use.
Signal integrity	-79 dB off-isolation, -78 dB crosstalk at 1 MHz - preserves SNR in multi-channel audio/video routing.

Applications

USB 2.0 Multiplexer

Mobile Display Interface

Use Scenario: Dynamic routing of USB DP/DM lines between dual controllers (e.g., application processor and modem) in smartphones.

IC Role / Device Role / Timing Role: Quad SPDT switch providing bidirectional, low-jitter signal path selection with break-before-make timing.

Use Value: Enables single USB connector to serve multiple SoC functions without signal degradation or timing violation.

Use Scenario: Switching MIPI D-PHY or LVDS video data lanes between main display and secondary panel in foldable tablets.

IC Role / Device Role / Timing Role: High-bandwidth analog multiplexer preserving edge rate and minimizing inter-symbol interference.

Use Value: Maintains 500 MHz bandwidth and <17 ns t_OFF to support WQXGA resolution at 60 Hz without visual artifacts.

Portable Audio Routing

Industrial Sensor Signal Conditioning

Use Scenario: Selecting between headset mic input and Bluetooth audio codec output in wireless earbuds.

IC Role / Device Role / Timing Role: Low-R_ON, low-charge-injection analog switch enabling clean audio path switching.

Use Value: Delivers <5 pC charge injection and 0.64% differential gain error - avoids audible pop/click and color distortion.

Use Scenario: Multiplexing analog outputs from multiple temperature/pressure sensors into a shared ADC front-end in compact IoT nodes.

IC Role / Device Role / Timing Role: Precision analog switch with matched R_ON (ΔR_ON ≤ 0.3 Ω) and low leakage (<100 nA).

Use Value: Ensures measurement accuracy within ±0.1% FS across channels without calibration overhead.

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad SPDT analog switch applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TS3USB30E	Lower R_ON (3.5 Ω @ 3.3 V), but higher ICC (15 µA) and no 1.65 V operation.	Better for high-speed USB-only designs; unsuitable for sub-2 V battery monitoring circuits.	Choose when lowest insertion loss is prioritized over ultra-low power and wide VCC range.
MAX4992	Higher bandwidth (800 MHz), but larger QFN20 package and no USB jitter spec validation.	Preferred for RF test equipment; lacks USB-IF compliance documentation and 1.8 V logic compatibility.	Choose for >500 MHz applications where package size and USB certification are secondary.

Compared with TS3USB30E and MAX4992, STG3692QTR uniquely balances 1.65–4.3 V operation, 3 µA ICC, USB-validated jitter, and QFN16L footprint - making it optimal for space-constrained, battery-sensitive USB 2.0 and mixed-signal portable systems.

Availability

STG3692QTR is available at Aetrix Electronics and suitable for USB 2.0 interface multiplexing, mobile display switching, and portable audio routing requiring stable component supply across production lifecycles.

Supply support for STG3692QTR 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in automotive, industrial, and consumer ICs with strong analog and mixed-signal design capability.

The STG3692 belongs to ST's high-speed analog switch product line, engineered specifically for low-voltage, high-bandwidth signal routing in portable electronics - emphasizing USB compliance, power efficiency, and small-footprint integration.

FAQ

Is the STG3692QTR compatible with 1.8 V logic control inputs?

Yes - the device supports 1.8 V compatible thresholds on nSEL inputs when VCC is between 2.3 V and 3.0 V, per datasheet Table 5. VIH is guaranteed at 0.65×VCC, allowing direct interfacing with 1.8 V GPIO without level shifters in that VCC range.

What is the thermal handling requirement for the exposed pad?

The exposed pad must be soldered to a floating copper plane - not connected to VCC or GND - to ensure mechanical stability and thermal dissipation without introducing noise coupling. ST specifies no electrical connection; improper grounding causes signal integrity degradation.

Does the STG3692QTR support bidirectional analog signal flow?

Yes - all four SPDT switches are fully bidirectional. Dn ports and Sn ports have symmetric R_ON, capacitance, and leakage specs, enabling use in either direction without performance penalty - confirmed by test circuits in DS4909 Figures 3–6.

How is break-before-make timing verified in this device?

Break-before-make delay is measured per Figure 10 in DS4909, with typ. values of 1–3 ns depending on VCC. The specification guarantees no overlap between ON states of S1 and S2, preventing momentary shorts - critical for protecting USB transceivers during hot-switching events.

STG3692QTR Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Packaging:: Tape & Reel (TR)

Product Status:: Active

Switch Circuit:: SPDT

Multiplexer/Demultiplexer Circuit:: 2:1

Number of Circuits:: 4

On-State Resistance (Max):: 5.2Ohm

Channel-to-Channel Matching (ΔRon):: 300mOhm

Voltage - Supply, Single (V+):: 1.65V ~ 4.3V

Voltage - Supply, Dual (V±):: -

Switch Time (Ton, Toff) (Max):: 15ns, 13ns

-3db Bandwidth:: 800MHz

Charge Injection:: 5pC

Channel Capacitance (CS(off), CD(off)):: 5pF

Current - Leakage (IS(off)) (Max):: 20nA

Crosstalk:: -78dB @ 1MHz

Operating Temperature:: -55°C ~ 125°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 16-QFN (2.6x1.8)

STG3692QTR FAQ

1.How can I place an order for STG3692QTR through Aetrix?

Please submit a Request for Quotation (RFQ) for STG3692QTR 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 STG3692QTR reliable?

The price and inventory of STG3692QTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STG3692QTR is usually 5 days.

3.What payment methods are accepted for STG3692QTR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STG3692QTR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STG3692QTR?

STG3692QTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STG3692QTR 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 STG3692QTR?

For technical support, including STG3692QTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STG3692QTR requirements.

6.How does Aetrix verify that STG3692QTR is sourced from the original manufacturer or authorized distributors?

All STG3692QTR 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 STG3692QTR meets industry standards.

7.What is the process for return or replacement of STG3692QTR?

All STG3692QTR units undergo pre-shipment inspection (PSI). If there is an issue with STG3692QTR, 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 STG3692QTR part is unused and in its original packaging.

Return procedure for STG3692QTR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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