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Texas Instruments TS3A24157RSER
- Part No.:
- TS3A24157RSER
- Manufacturer:
- Texas Instruments
- Package:
- 10-UFQFN
- Datasheet:
-
TS3A24157RSER.pdf
- Description:
- IC SWITCH SPDTX2 600MOHM 10UQFN
- Quantity:
- Payment:
- Shipping:
Inventory:8,569
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Product details
Overview
TS3A24157 from Texas Instruments is a bidirectional 2-channel SPDT analog switch designed for low-voltage signal routing in portable electronics. It delivers 0.65-Ω maximum ON-state resistance, break-before-make switching, and 0.005% THD at 3-V supply - enabling high-fidelity audio path selection in space-constrained mobile devices.
For engineers reviewing the TS3A24157 datasheet, TS3A24157 pinout, TS3A24157 application, or TS3A24157 equivalent, key selection criteria include its 1.65–3.6-V single-supply operation, ±2000-V HBM ESD rating, 50-MHz bandwidth, and dual independent logic-controlled SPDT channels with matched rON.
Technical Context
The TS3A24157 implements two fully independent SPDT switches, each controlled by a dedicated digital input (IN1/IN2), supporting simultaneous but separate signal path selection between NC/COM and NO/COM pairs. Its CMOS architecture enables true bidirectional analog signal flow with no polarity constraints on COM, NC, or NO terminals.
Break-before-make timing (1–40 ns, depending on VCC) prevents momentary shorting during channel transitions, while low charge injection (4–8.75 pC) and flat rON (≤0.025 Ω over full signal range at 3 V) preserve signal integrity in precision ADC front-ends and audio multiplexing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ON-state resistance | 0.65 Ω max at 3 V - ensures minimal insertion loss and voltage drop in low-level analog paths |
| Supply voltage range | 1.65 V to 3.6 V - supports direct interface with modern low-power microcontrollers and SoCs |
| THD | 0.005% at 20 Hz–20 kHz - preserves fidelity in audio routing applications without added distortion |
| Bandwidth | 50 MHz - enables reliable switching of composite video, USB 1.1, or baseband data signals |
| Break-before-make time | 1–40 ns - prevents signal coupling or rail-to-rail shorts during channel transition |
| ESD rating | ±2000 V HBM - provides robust handling in handheld device assembly and end-user environments |
| Leakage current | ±50 nA max at 25°C - minimizes DC error in high-impedance sensor or reference signal paths |
Pinout & Package
The TS3A24157 is available in two surface-mount packages: 10-pin UQFN (1.5 mm × 2.0 mm) and 10-pin VSSOP (3.0 mm × 3.0 mm). Both share identical pin numbering and functionality.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3 | NC1, NC2 | Normally closed analog terminals - conduct to COM when corresponding IN is low |
| 2, 4 | NO1, NO2 | Normally open analog terminals - conduct to COM when corresponding IN is high |
| 5 | GND | Ground reference for analog and digital domains - must be low-impedance connection |
| 6, 9 | COM2, COM1 | Common analog I/O ports - bidirectional signal path shared between NC and NO |
| 7, 8 | IN2, IN1 | Digital control inputs - TTL/CMOS-compatible; drive channel state independently |
| 10 | VCC | Single power supply - powers internal logic and switch FETs; requires 0.1-µF bypass capacitor |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional signal routing | COM, NC, and NO pins support equal analog performance in either direction - eliminates need for signal direction planning |
| Break-before-make switching | Guaranteed non-overlapping conduction prevents momentary shorts between NC and NO paths during transition |
| Low ON-resistance matching | ΔrON ≤ 0.07 Ω at 25°C - ensures consistent gain and phase response across both channels |
| Low charge injection | 4–8.75 pC - reduces glitch-induced offset in sample-and-hold or switched-capacitor circuits |
| Ultra-low supply current | 200 nA max at 3.6 V - negligible impact on battery life in always-on portable systems |
Applications
| Audio Signal Routing | Portable Instrumentation |
|---|---|
Use Scenario: Switching between stereo headphone outputs, microphone inputs, and line-in sources in smartphones and tablets. IC Role / Device Role / Timing Role: Dual SPDT analog switch providing independent left/right channel selection with zero-crossing-safe break-before-make timing. Use Value: 0.005% THD and 50-MHz bandwidth maintain CD-quality audio fidelity without external buffering. |
Use Scenario: Multiplexing multiple sensor inputs (thermocouple, RTD, pressure) into a single ADC in handheld test equipment. IC Role / Device Role / Timing Role: Low-leakage (±50 nA), low-rON analog switch enabling accurate DC-coupled measurements without calibration drift. Use Value: Matched rON (≤0.07 Ω) and flatness (≤0.025 Ω) minimize channel-to-channel gain error in precision acquisition. |
| USB 1.1 Data Switching | Modem Interface Selection |
Use Scenario: Sharing a single USB transceiver between host and peripheral modes in dual-role OTG devices. IC Role / Device Role / Timing Role: Bidirectional 50-MHz analog switch routing D+ and D− lines with sub-40-ns tON/tOFF. Use Value: 0.65-Ω rON and <−72-dB crosstalk preserve signal integrity within USB 1.1 eye diagram requirements. |
Use Scenario: Selecting between PSTN line interface and cellular RF modem paths in wireless gateways and VoIP adapters. IC Role / Device Role / Timing Role: Dual SPDT switch isolating analog voice band (300–3400 Hz) paths with >72-dB OFF isolation. Use Value: ±2000-V HBM ESD rating withstands repeated plugging/unplugging of telephone cables in field-deployed units. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMUX1574RSER | Lower rON (0.5 Ω typ), higher supply range (1.08–4.5 V), but no break-before-make guarantee | Suitable for wider supply rails and ultra-low-loss paths; not recommended where channel shorting must be avoided | Select TMUX1574RSER only if break-before-make is not required and supply extends below 1.65 V |
| ADG774ACRSZ-REEL | Higher rON (2.5 Ω), 3.3-V fixed supply, ±2500-V HBM, but includes latch-up immunity per JESD78 Class II | Better suited for industrial environments with high ESD stress; less ideal for battery-powered audio due to higher rON | Choose ADG774ACRSZ-REEL when system-level latch-up robustness and extreme ESD margin outweigh low-rON needs |
Compared with TMUX1574RSER and ADG774ACRSZ-REEL, the TS3A24157 uniquely balances ultra-low rON, guaranteed break-before-make, and 1.65–3.6-V flexibility - making it optimal for portable audio and dual-supply mixed-signal routing where signal integrity and safe transitions are co-critical.
Availability
TS3A24157 is available at Aetrix Electronics and suitable for cell phones, portable instrumentation, and audio signal routing requiring stable component supply across consumer, industrial, and medical portable platforms.
Supply support for TS3A24157 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
Texas Instruments is a global semiconductor leader focused on analog and embedded processing technologies, with decades of expertise in precision signal chain and power management solutions.
The TS3A24157 belongs to TI's high-performance analog switch portfolio, engineered specifically for low-voltage, low-distortion signal routing in battery-powered portable electronics and mixed-signal interfaces.
FAQ
What is the maximum operating voltage for the TS3A24157?
The TS3A24157 supports a recommended operating supply voltage range of 1.65 V to 3.6 V. Its absolute maximum supply voltage is 3.6 V; exceeding this may cause permanent damage. The device maintains specified performance - including 0.65-Ω rON and 0.005% THD - across the full 1.65–3.6-V range, making TS3A24157 ideal for Li-ion and multi-cell battery systems.
Does the TS3A24157 require external pull-up or pull-down resistors on its control pins?
Yes - unused IN1 or IN2 pins must be actively held at VCC or GND to prevent floating states that could result in undefined switch positions. TI explicitly recommends this in the datasheet to ensure deterministic NC/NO/COM connectivity. The TS3A24157 itself does not integrate internal pull resistors, so external biasing is required for reliable operation of TS3A24157 in production designs.
Can the TS3A24157 be used in audio line-level switching applications?
Yes - the TS3A24157 is specifically optimized for audio routing, with 0.005% THD at 20 Hz–20 kHz, 50-MHz bandwidth, and low 0.65-Ω rON. Its bidirectional capability allows use in both input and output paths, and its break-before-make feature prevents audible clicks during source switching. These characteristics make TS3A24157 well-suited for headphone jack detection, mic/audio path selection, and codec interface multiplexing.
What is the thermal performance of the TS3A24157 in the UQFN package?
In the RSE (UQFN-10) package, the TS3A24157 has a junction-to-ambient thermal resistance (RθJA) of 160.3°C/W and junction-to-board (RθJB) of 82.2°C/W. This enables operation up to 85°C ambient without derating under typical PCB layouts with adequate copper pour. The lower RθJB versus VSSOP confirms superior heat transfer to the board - an important advantage for TS3A24157 in thermally dense portable PCBs.
Is the TS3A24157 compatible with 1.8-V logic control signals?
Yes - the TS3A24157 accepts logic inputs down to 1.65 V supply, with VIL = 0.4 V and VIH = 1.0 V at 1.8-V operation. Its control pins (IN1/IN2) are fully compatible with 1.8-V GPIOs from modern microcontrollers and application processors, eliminating level-shifting requirements. This native compatibility simplifies system design and reduces bill-of-materials cost for TS3A24157 implementations.
TS3A24157RSER Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 600mOhm
- Channel-to-Channel Matching (ΔRon):
- 50mOhm
- Voltage - Supply, Single (V+):
- 1.65V ~ 3.6V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 35ns, 25ns
- -3db Bandwidth:
- 50MHz
- Charge Injection:
- 8.75pC
- Channel Capacitance (CS(off), CD(off)):
- 50pF
- Current - Leakage (IS(off)) (Max):
- 50nA
- Crosstalk:
- -72dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-UQFN (2.0x1.5)
TS3A24157RSER FAQ
1.How can I place an order for TS3A24157RSER through Aetrix?
Please submit a Request for Quotation (RFQ) for TS3A24157RSER 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 TS3A24157RSER reliable?
The price and inventory of TS3A24157RSER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS3A24157RSER is usually 5 days.
3.What payment methods are accepted for TS3A24157RSER?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS3A24157RSER transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS3A24157RSER?
TS3A24157RSER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS3A24157RSER 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 TS3A24157RSER?
For technical support, including TS3A24157RSER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS3A24157RSER requirements.
6.How does Aetrix verify that TS3A24157RSER is sourced from the original manufacturer or authorized distributors?
All TS3A24157RSER 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 TS3A24157RSER meets industry standards.
7.What is the process for return or replacement of TS3A24157RSER?
All TS3A24157RSER units undergo pre-shipment inspection (PSI). If there is an issue with TS3A24157RSER, 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 TS3A24157RSER part is unused and in its original packaging.
Return procedure for TS3A24157RSER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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