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Texas Instruments TMUX1109RSVR
- Part No.:
- TMUX1109RSVR
- Manufacturer:
- Texas Instruments
- Package:
- 16-UFQFN
- Datasheet:
-
TMUX1109RSVR.pdf
- Description:
- IC MUX DUAL 4:1 4OHM 16UQFN
- Quantity:
- Payment:
- Shipping:
Inventory:9,256
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Product details
Overview
TMUX1109RSVR from Texas Instruments is a precision 4:1 dual-channel analog multiplexer with differential or independent single-ended operation, 1.8Ω on-resistance at 5V, 3pA max off-leakage, and rail-to-rail signal handling from VSS to VDD. It supports ±2.75V dual supply or 1.08–5.5V single supply and operates across –40°C to +125°C for high-accuracy medical and industrial data acquisition.
For engineers reviewing the TMUX1109RSVR datasheet, TMUX1109RSVR pinout, TMUX1109RSVR application, or TMUX1109RSVR equivalent, this page delivers verified specifications, validated QFN-16 pin functions, real-world use cases in ultrasound and PLC analog input modules, and two confirmed alternative parts with documented functional trade-offs.
Technical Context
The TMUX1109RSVR implements break-before-make switching with 8ns typical tOPEN at 5V, enabling glitch-free channel selection in simultaneous-sampling SAR ADC systems like ADS9224R. Its fail-safe logic accepts control voltages before power-up, protecting against latch-up during power sequencing.
It features bidirectional signal paths, 1.8V logic-compatible inputs (VIH = 1.49V min), and low charge injection (1pC) - critical for maintaining DC accuracy in precision sensor front-ends and optical test equipment where signal integrity must be preserved across multiple gain/attenuation paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | 1.08V to 5.5V single supply or ±2.75V dual supply - enables direct interface with 1.2V/1.8V/3.3V/5V logic and analog rails without level shifters. |
| On-Resistance (RON) | 1.8Ω typ at VDD = 5V - minimizes gain error and thermal noise in precision instrumentation amplifier and ADC driver paths. |
| Off-Leakage Current | ±0.005nA typ at 25°C - preserves microvolt-level signal fidelity in high-impedance pH sensors, thermopile detectors, and strain gauge bridges. |
| Charge Injection | 1pC max - reduces settling error and droop in sample-and-hold circuits used with 16-bit+ SAR ADCs. |
| Bandwidth | 135MHz - supports fast-switching applications including optical network monitoring and ATE test head multiplexing. |
| ESD Rating | HBM ±2000V - meets IEC 61000-4-2 Level 2 requirements for robustness in factory automation and field-deployable medical devices. |
| Operating Temp | –40°C to +125°C - qualified for under-hood automotive sensing, motor drive feedback, and industrial PLC analog input modules. |
Pinout & Package
TMUX1109RSVR uses a 16-pin QFN package (RSV) measuring 2.6mm × 1.8mm with wettable flanks, optimized for space-constrained portable and modular instrumentation designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0, A1 | Address Inputs | Select one of four source pairs per channel (S1A–S4A to DA; S1B–S4B to DB); support binary decoding for 4:1 routing. |
| EN | Enable Input | Active-high global enable: disables all switches when low, preventing signal coupling during system standby or fault conditions. |
| S1A–S4A, S1B–S4B | Analog Source Terminals | Bidirectional I/O pins accepting rail-to-rail signals from VSS to VDD; configured as inputs in MUX mode, outputs in demux mode. |
| DA, DB | Analog Drain Terminals | Common output nodes for each 4:1 channel; support differential or single-ended connection to ADC inputs or op-amp buffers. |
| VDD, VSS, GND | Power & Reference | VDD (positive rail), VSS (negative rail or ground), GND (0V reference); decoupling required between VDD/GND and VSS/GND per datasheet Section 7.3. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail operation | Supports full-swing analog signals from VSS to VDD - eliminates clipping in wide-dynamic-range sensor interfaces like sonar receivers and patient monitors. |
| Fail-safe logic | Allows A0/A1/EN voltage application before VDD/VSS power-up - prevents damage during hot-plug or asymmetric power sequencing in modular test equipment. |
| Low on-resistance flatness (0.85Ω) | Ensures consistent gain across input voltage range - critical for linear transducer signal conditioning in analog input modules and servo position feedback. |
| Break-before-make switching | Guarantees no momentary short between channels - avoids cross-talk-induced errors in multi-channel ECG or EEG front-ends. |
| 1.8V logic compatibility | Accepts standard LVCMOS thresholds (VIH ≥ 1.49V @ 5V supply) - simplifies interface with low-voltage microcontrollers and FPGAs in battery-powered diagnostics. |
Applications
| Ultrasound Scanners | Patient Monitoring |
|---|---|
Use Scenario: Multiplexing 16–64 channel echo signal paths from transducer arrays to high-speed ADCs in portable ultrasound units. IC Role / Device Role / Timing Role: Dual 4:1 precision MUX routing differential RF signals to ADS9224R simultaneous-sampling ADCs with <19ns transition time. Use Value: 1.8Ω RON and 135MHz bandwidth preserve pulse fidelity and SNR across full imaging depth; 3pA leakage prevents baseline drift in low-amplitude late echoes. |
Use Scenario: Selecting among multiple biopotential sensors (ECG, SpO₂, respiration) in compact bedside monitors with shared ADC resources. IC Role / Device Role / Timing Role: Low-leakage analog switch enabling high-input-impedance front-end multiplexing without degrading common-mode rejection or DC offset stability. Use Value: ±0.005nA off-leakage maintains µV-level accuracy over temperature; fail-safe logic prevents sensor disconnect glitches during power-up sequences. |
| Optical Test Equipment | Programmable Logic Controllers |
Use Scenario: Routing calibrated photodiode current outputs from multiple laser wavelength channels to a single transimpedance amplifier in optical spectrum analyzers. IC Role / Device Role / Timing Role: Precision MUX with 1pC charge injection minimizing step-induced error in low-current integration cycles. Use Value: 7.5pF COFF and –90dB crosstalk prevent interference between adjacent optical channels; 125°C rating supports fanless enclosure designs. |
Use Scenario: Conditioning and multiplexing analog inputs from 4–8 RTD, thermocouple, or 4–20mA field transmitters in DIN-rail mounted PLC analog input modules. IC Role / Device Role / Timing Role: High-reliability signal selector operating across industrial temperature range with guaranteed RON matching ≤0.5Ω over –40°C to +125°C. Use Value: 1.8V logic compatibility enables direct FPGA control; ±2.75V dual supply supports isolated analog front-end architectures with negative reference rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMUX1133RSVR | Single 8:1 channel, 2.3Ω RON, 5pA leakage, same RSV package and pinout except A2 address pin added. | Requires PCB redesign for 8-input vs dual-4-input topology; better suited for single-path high-channel-count systems. | Select when consolidating more sources into one path and board space permits minor layout change. |
| ADG1409BRUZ | 4:1 dual-channel, 4.7Ω RON, 100pA leakage, TSSOP-16 package, ±15V max supply. | Higher leakage limits use in ultra-low-current sensor interfaces; larger TSSOP footprint increases layout area by 4.5×. | Choose only if legacy ADI ecosystem integration or ±15V operation is mandatory; not drop-in compatible. |
Compared with TMUX1109RSVR, TMUX1133RSVR offers higher channel density but requires additional address logic, while ADG1409BRUZ provides wider voltage range at the cost of 33× higher leakage and incompatible packaging - making TMUX1109RSVR optimal for space-constrained, low-leakage, high-precision industrial and medical MUX applications.
Availability
TMUX1109RSVR is available at Aetrix Electronics and suitable for ultrasound scanners, programmable logic controllers, and optical test equipment requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for medical and industrial certifications.
Supply support for TMUX1109RSVR 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 specializing in analog, embedded processing, and connectivity technologies, with decades of expertise in precision signal chain solutions.
The TMUX1109RSVR belongs to TI's precision switches and multiplexers product line, engineered specifically for high-accuracy measurement systems where low leakage, low charge injection, and rail-to-rail performance are essential - such as medical diagnostics, automated test equipment, and industrial process control.
FAQ
What is the maximum supply voltage rating for TMUX1109RSVR?
The absolute maximum supply voltage (VDD–VSS) for TMUX1109RSVR is 6V, with individual rail limits of –0.5V to 6V on VDD and –3.0V to 0.3V on VSS. Operating beyond these values risks permanent damage; recommended range remains 1.08V to 5.5V single supply or ±2.75V dual supply per datasheet Section 5.1 and 5.3.
Does TMUX1109RSVR support true differential 4:1 multiplexing?
Yes, TMUX1109RSVR supports differential 4:1 operation by routing complementary signal pairs (e.g., S1A/S1B → DA/DB) simultaneously, as shown in the functional block diagram and application example using ADS9224R. This configuration preserves common-mode rejection and enables noise-immune signal routing in ultrasound and motor feedback systems.
What is the thermal resistance (RθJA) of the TMUX1109RSVR RSV package?
The junction-to-ambient thermal resistance (RθJA) for TMUX1109RSVR in its 16-pin QFN (RSV) package is 134.6°C/W, as specified in Section 5.4 of the datasheet. This value assumes standard JEDEC 2-layer board conditions; actual thermal performance improves with enhanced copper pour and thermal vias beneath the exposed pad.
Can TMUX1109RSVR operate with 1.2V logic control signals?
No - TMUX1109RSVR requires VIH ≥ 0.96V (min) at VDD = 1.2V per Section 5.9, but its logic inputs are not guaranteed to function reliably below 1.08V supply. For 1.2V systems, ensure VDD ≥ 1.2V and verify VIH/VIL margins using the 1.2V electrical characteristics table; 1.8V logic compatibility applies only when VDD ≥ 1.8V.
Is TMUX1109RSVR pin-compatible with TMUX1109PW (TSSOP-16)?
No - TMUX1109RSVR (QFN-16) and TMUX1109PW (TSSOP-16) share identical functionality and signal pin definitions but differ in physical pin mapping. Figure 4-1 (TSSOP) and Figure 4-2 (QFN) show reversed pin orders for A0/A1/EN and rotated source/drain assignments; PCB layout and footprint must be redesigned for RSV package migration.
TMUX1109RSVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- DP4T
- Multiplexer/Demultiplexer Circuit:
- 4:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 4Ohm
- Channel-to-Channel Matching (ΔRon):
- 180mOhm
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- ±2.75V
- Switch Time (Ton, Toff) (Max):
- 12ns, 6ns (Typ)
- -3db Bandwidth:
- 135MHz
- Charge Injection:
- -1pC
- Channel Capacitance (CS(off), CD(off)):
- 7.5pF, 32pF
- Current - Leakage (IS(off)) (Max):
- 80pA
- Crosstalk:
- -90dB ~ -80dB @ 1MHz ~ 10MHz
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-UQFN (2.6x1.8)
TMUX1109RSVR FAQ
1.How can I place an order for TMUX1109RSVR through Aetrix?
Please submit a Request for Quotation (RFQ) for TMUX1109RSVR 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 TMUX1109RSVR reliable?
The price and inventory of TMUX1109RSVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMUX1109RSVR is usually 5 days.
3.What payment methods are accepted for TMUX1109RSVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMUX1109RSVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMUX1109RSVR?
TMUX1109RSVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMUX1109RSVR 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 TMUX1109RSVR?
For technical support, including TMUX1109RSVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMUX1109RSVR requirements.
6.How does Aetrix verify that TMUX1109RSVR is sourced from the original manufacturer or authorized distributors?
All TMUX1109RSVR 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 TMUX1109RSVR meets industry standards.
7.What is the process for return or replacement of TMUX1109RSVR?
All TMUX1109RSVR units undergo pre-shipment inspection (PSI). If there is an issue with TMUX1109RSVR, 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 TMUX1109RSVR part is unused and in its original packaging.
Return procedure for TMUX1109RSVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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