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STMicroelectronics STG5683QTR
- Part No.:
- STG5683QTR
- Manufacturer:
- STMicroelectronics
- Package:
- 16-UFQFN
- Datasheet:
-
STG5683QTR.pdf
- Description:
- IC SWITCH SPDT X 2 550MOHM 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,970
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Product details
Overview
STG5683QTR from STMicroelectronics is a low-voltage dual SPDT analog switch with negative rail capability, designed for signal routing in portable battery-powered systems. It operates from 1.65V to 4.5V single supply, delivers ultra-low on-resistance (0.5Ω max at VCC = 4.3V), supports distortion-free signal throughput down to VCC−5.5V, and features break-before-make timing for glitch-free switching in audio and sensor interfaces.
For engineers reviewing the STG5683QTR datasheet, STG5683QTR pinout, STG5683QTR application, or STG5683QTR equivalent, key selection criteria include negative-signal handling capability, sub-1Ω RON matching across channels, 4.3V-tolerant control inputs at 1.8V logic levels, and QFN16L (2.6mm × 1.8mm) footprint compatibility with space-constrained PCB layouts.
Technical Context
The STG5683 implements two independent SPDT switches using C2MOS silicon gate technology, each controlled by dedicated SEL pins (1SEL, 2SEL) with CMOS-compatible thresholds. Its architecture enables true bidirectional analog signal routing with no polarity restriction - signals from −(VCC−5.5)V to VCC pass without clipping or distortion.
Each switch includes integrated shunt paths (S1/S2 pins shorted to GND when OFF) to suppress charge injection and reduce crosstalk. Break-before-make delay (as low as 23 ns at VCC = 4.3V) prevents momentary shorting during state transitions, critical for multiplexed ADC front-ends and audio channel switching.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.65V to 4.5V single supply - enables direct interface with Li-ion, NiMH, and 1.8V/2.5V/3.3V logic domains |
| On-Resistance (RON) | 0.5Ω max at VCC = 4.3V, TA = 25°C - minimizes insertion loss and voltage drop in precision signal paths |
| RON Matching (∆RON) | 15 mΩ max at VCC = 4.3V - ensures matched gain/attenuation across dual-channel applications like stereo audio |
| Signal Range | VCC−5.5V to VCC - supports rail-to-rail analog signals including negative-biased sensor outputs |
| Quiescent Current (ICC) | 50 nA max at VCC = 4.3V, TA = 25°C - extends battery life in always-on wearable and IoT endpoints |
| Turn-On/Off Time | 58 ns / 33 ns at VCC = 4.3V - supports >10 MHz multiplexing rates in high-speed data acquisition |
| OFF Isolation (OIRR) | −55 dB at 100 kHz - suppresses inter-channel leakage in multi-sensor monitoring systems |
Pinout & Package
Package: QFN16L (2.6 mm × 1.8 mm, 0.4 mm pitch, exposed thermal pad). Compact footprint optimized for handheld and wearables with minimal board area and low thermal resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1SEL, 2SEL | Digital control input | CMOS-compatible; accepts 1.8V logic at VCC ≥ 1.65V; 4.3V tolerant up to VCC = 3.0V |
| 1S1, 1S2, 2S1, 2S2 | Analog switch terminals | Independent SPDT poles; support bidirectional signal flow from VCC−5.5V to VCC |
| D1, D2 | Common analog ports | Shared output/input nodes; routed to S1/S2 based on SEL state per channel |
| VCC | Positive supply | Single power rail; powers internal logic and switch transistors; no separate analog/digital supplies required |
| GND | Ground reference | Return path for all analog and digital currents; connects to exposed thermal pad for thermal dissipation |
| NC (Pins 4,5,6,13,14,15,16) | No-connect | Not bonded; must be left floating or tied to GND per layout guidelines - no electrical function |
Key Features
| Feature | Design Value |
|---|---|
| Negative rail signal handling | Supports analog signals down to VCC−5.5V - eliminates need for level-shifting circuitry in bipolar sensor interfaces |
| Break-before-make timing | 23 ns minimum delay at VCC = 4.3V - prevents transient shorts during channel switching in ADC multiplexers |
| Ultra-low quiescent current | 50 nA max ICC - reduces standby power in battery-backed medical monitors and smart sensors |
| Integrated shunt switches | 70 Ω max RSH at 2.7V - discharges residual charge on OFF channels to minimize pop/click in audio paths |
| Low RON flatness | 0.16 Ω max variation over full signal range at VCC = 4.3V - preserves linearity in precision instrumentation amplifiers |
Applications
| Portable Audio Multiplexer | Medical Sensor Signal Routing |
|---|---|
|
Use Scenario: Switching between multiple microphone inputs or headphone outputs in Bluetooth earbuds and hearing aids. IC Role / Device Role / Timing Role: Dual SPDT analog switch enabling channel selection with <23 ns break-before-make delay to prevent audio artifacts. Use Value: 0.5Ω RON and −60 dB crosstalk preserve SNR and stereo separation in compact form factors. |
Use Scenario: Routing ECG, EEG, or temperature sensor outputs to a shared ADC in wearable health monitors. IC Role / Device Role / Timing Role: Bidirectional analog switch supporting ±2.5V sensor signals without external biasing or level shifters. Use Value: VCC−5.5V signal range accommodates negative-biased biopotential waveforms while maintaining <0.1% THD. |
| Industrial Data Acquisition | Automotive Cabin Sensing Interface |
|
Use Scenario: Multiplexing thermocouple, RTD, and strain gauge signals into a single precision ADC in PLC modules. IC Role / Device Role / Timing Role: Low-leakage (<0.1 µA) dual switch minimizing offset drift and gain error in high-impedance sensor paths. Use Value: 15 mΩ RON matching ensures consistent channel calibration across temperature ranges (−40°C to +85°C). |
Use Scenario: Selecting between cabin temperature, humidity, and CO₂ sensor outputs in automotive HVAC control units. IC Role / Device Role / Timing Role: Low-power analog switch operating from 3.3V microcontroller rails with ESD-hardened I/O (2000-V HBM). Use Value: 50 nA ICC and latch-up immunity (>300 mA) ensure reliability in electrically noisy vehicle environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSM1024IYQTR | Higher RON (0.9Ω typ), no negative rail support (signal range: 0V to VCC), 1.2V–5.5V supply | Lacks VCC−5.5V operation - unsuitable for bipolar sensor interfaces requiring negative signal swing | Select only if system uses unipolar sensors and prioritizes wider supply range over low RON and negative rail capability |
| MAX4683ETA+ | Similar RON (0.55Ω max), but requires dual supply (±2.5V) for negative signal handling; larger TDFN-10 package | Needs charge pump or split rail - increases BOM count and board area vs. STG5683QTR's single-supply simplicity | Choose only when existing design already uses dual supplies and board space is not constrained |
Compared with TSM1024IYQTR and MAX4683ETA+, the STG5683QTR uniquely combines single-supply negative rail operation, sub-0.5Ω RON, and QFN16L miniaturization - making it optimal for space- and power-sensitive portable instrumentation where signal integrity across bipolar ranges is mandatory.
Availability
STG5683QTR is available at Aetrix Electronics and suitable for portable audio multiplexing, medical sensor routing, industrial data acquisition, and automotive cabin sensing applications requiring stable component supply and long-term obsolescence management.
Supply support for STG5683QTR 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 analog, power, microcontrollers, and MEMS technologies for industrial, automotive, and consumer markets.
The STG5683 belongs to ST's high-performance analog switch product line, engineered specifically for low-voltage, low-power, and rail-to-rail signal routing in portable and battery-operated equipment.
FAQ
Is STG5683QTR still in active production?
No - STG5683QTR is marked as Obsolete by STMicroelectronics per its official datasheet revision history (Rev 3, July 2007). However, Aetrix Electronics maintains legacy inventory with full traceability and offers extended lifecycle support, including cross-reference guidance and last-time-buy planning for ongoing production programs.
Can STG5683QTR handle AC-coupled audio signals with DC bias below ground?
Yes - the device supports analog signals from VCC−5.5V to VCC. With VCC = 3.3V, it passes signals from −2.2V to +3.3V, enabling direct interface with AC-coupled audio paths that include negative DC offsets without external clamping or level-shifting circuitry.
What is the thermal performance of the QFN16L package under continuous 100mA load per channel?
At TA = 85°C and 100mA per channel, power dissipation is ≤10 mW per switch (RON × I²). The QFN16L's exposed thermal pad and low junction-to-board resistance (≈60°C/W) keep junction temperature rise below 10°C - well within safe operating limits per ST's recommended conditions.
Does STG5683QTR require external pull-up or pull-down resistors on SEL pins?
No - the SEL inputs have CMOS-compatible thresholds and negligible leakage (±0.1 µA). They may be driven directly from GPIOs of 1.8V/2.5V/3.3V microcontrollers. External resistors are unnecessary unless noise immunity in high-EMI environments demands added hysteresis - which ST does not specify or recommend.
STG5683QTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 550mOhm
- Channel-to-Channel Matching (ΔRon):
- 15mOhm
- Voltage - Supply, Single (V+):
- 1.65V ~ 4.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 80ns, 50ns
- -3db Bandwidth:
- 33MHz
- Charge Injection:
- 46pC
- Channel Capacitance (CS(off), CD(off)):
- 6pF
- Current - Leakage (IS(off)) (Max):
- -
- Crosstalk:
- -60dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QFN (2.6x1.8)
STG5683QTR FAQ
1.How can I place an order for STG5683QTR through Aetrix?
Please submit a Request for Quotation (RFQ) for STG5683QTR 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 STG5683QTR reliable?
The price and inventory of STG5683QTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STG5683QTR is usually 5 days.
3.What payment methods are accepted for STG5683QTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STG5683QTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STG5683QTR?
STG5683QTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STG5683QTR 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 STG5683QTR?
For technical support, including STG5683QTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STG5683QTR requirements.
6.How does Aetrix verify that STG5683QTR is sourced from the original manufacturer or authorized distributors?
All STG5683QTR 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 STG5683QTR meets industry standards.
7.What is the process for return or replacement of STG5683QTR?
All STG5683QTR units undergo pre-shipment inspection (PSI). If there is an issue with STG5683QTR, 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 STG5683QTR part is unused and in its original packaging.
Return procedure for STG5683QTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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