Specifications
| Type | Description |
|---|---|
| Part Number | TMUX1308 |
| Manufacturer | Texas Instruments |
| Product Type | Operational Amplifier |
| Category | Signal Chain |
| Package Case | PW (TSSOP, 16) 5.00 mm x 4.40 mm; DYY (SOT-23-THIN, 16) 4.20 mm x 2.00 mm; BQB (WQFN, 16) 3.50 mm x 2.50 mm |
| Device Function | 8:1, 1-channel, single-ended multiplexer |
| Signal Path Direction | Bidirectional analog and digital signals supported |
| Signal Range | GND to VDD |
| Supply Voltage Range | 1.62 V to 5.5 V |
| Logic Compatibility | 1.8 V logic compatible |
| Fail-Safe Logic | Supported |
| Break-Before-Make Switching | Supported |
| Injection Current Control | Supported |
| Back-Powering Protection | No ESD diode path to VDD |
| Rail-to-Rail Operation | Supported |
| Pin Compatibility | Industry standard 4051 and 4851 multiplexers |
| Package Option | PW, TSSOP, 16 pins, 5.00 mm x 4.40 mm nominal body size |
| Package Option | DYY, SOT-23-THIN, 16 pins, 4.20 mm x 2.00 mm nominal body size |
| Package Option | BQB, WQFN, 16 pins, 3.50 mm x 2.50 mm nominal body size |
| Pin 1 Function | S4, I/O, source pin 4 |
| Pin 2 Function | S6, I/O, source pin 6 |
| Pin 3 Function | D, I/O, drain pin common |
| Pin 4 Function | S7, I/O, source pin 7 |
| Pin 5 Function | S5, I/O, source pin 5 |
| Enable Pin Function | Active low; high turns all switches off; low lets A[2:0] select switch |
| Pin 7 Function | N.C., not internally connected |
| Ground Pin | GND, 0 V reference |
| Address Inputs | A2, A1, A0 control switch configuration |
| Positive Supply Pin | VDD, most positive power-supply potential |
| Recommended Decoupling Capacitor | 0.1 uF to 10 uF |
| Thermal Pad Connection | No requirement to solder; if connected, leave floating or tie to GND |
| Absolute Maximum Supply Voltage | -0.5 V to 6 V |
| Absolute Maximum Logic Control Input Voltage | -0.5 V to 6 V |
| Absolute Maximum Source or Drain Voltage | -0.5 V to VDD + 0.5 V |
| Absolute Maximum Logic Control Input Current | -30 mA to 30 mA |
| Absolute Maximum Continuous Switch Current | -50 mA to 50 mA, Sx and D pins, -40°C to +85°C |
| Absolute Maximum Continuous Switch Current | -25 mA to 25 mA, Sx and D pins, -40°C to +125°C |
| Absolute Maximum Continuous GND Current | -100 mA to 100 mA |
| Absolute Maximum Total Power Dissipation | 500 mW |
| Storage Temperature | -65°C to 150°C |
| Junction Temperature | 150°C max |
| Datasheet Status | request_only |
Product Overview
The TMUX1308 is a Texas Instruments Signal_Chain device configured as an 8:1, 1-channel, single-ended multiplexer. Its source and drain pins support bidirectional analog and digital signals, and the Sx and D signal range extends from GND to VDD. The device operates from a 1.62 V to 5.5 V supply and provides 1.8 V logic compatibility on logic inputs when a valid supply voltage is present.
Control is handled through A2, A1, and A0 address inputs, while the active-low EN pin disables all switches when high and allows address-based switch selection when low. Device features include fail-safe logic, break-before-make switching, internal injection current control, rail-to-rail operation, and no ESD diode path to VDD for back-powering protection.
The TMUX1308 is offered in 16-pin PW TSSOP, DYY SOT-23-THIN, and BQB WQFN packages. A 0.1 uF to 10 uF capacitor is recommended between VDD and GND for operation. The exposed thermal pad has no soldering requirement; if connected, it may be left floating or tied to GND.
Key Features
- 8:1, one-channel single-ended multiplexer architecture
- Bidirectional analog and digital signal paths
- Signal range spans GND to VDD
- 1.62 V to 5.5 V supply range
- 1.8 V logic-compatible control inputs
- Fail-safe logic supports controls before VDD
- Break-before-make switching behavior supported
- Internal injection current control supported
- No ESD diode path to VDD for back-powering protection
- Rail-to-rail operation supported
- Pin compatible with industry-standard 4051 and 4851 multiplexers
- Available in 16-pin TSSOP, SOT-23-THIN, and WQFN packages
Typical Applications
- Analog signal routing
- Digital signal routing
- Single-ended channel selection
- Rail-to-rail signal multiplexing
- 4051 or 4851 pin-compatible designs
- Low-voltage control systems
Procurement Notes
When requesting a quote for TMUX1308, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For analog and signal-chain sourcing, supply voltage, bandwidth, accuracy, noise level, package, temperature grade, input/output configuration and qualification requirements should be verified before approval.
FAQ
What type of device is the TMUX1308?
The TMUX1308 is an 8:1, 1-channel, single-ended analog multiplexer from Texas Instruments. Its source and drain pins support bidirectional analog and digital signals, with the signal range specified from GND to VDD.
What supply and logic levels does TMUX1308 support?
TMUX1308 operates from a 1.62 V to 5.5 V supply range. Its logic inputs are 1.8 V logic compatible with a valid supply voltage, and fail-safe logic allows control pin voltages to be applied before the supply pin.
Which package options are listed for TMUX1308?
Package options include PW TSSOP with 16 pins and a 5.00 mm x 4.40 mm nominal body, DYY SOT-23-THIN with 16 pins and a 4.20 mm x 2.00 mm body, and BQB WQFN with 16 pins and a 3.50 mm x 2.50 mm body.
How does the enable pin control TMUX1308 switching?
The EN pin is active low. A high level turns all switches off, while a low level allows the A2, A1, and A0 address inputs to select the switch configuration.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 8, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.