Specifications
| Type | Description |
|---|---|
| Part Number | TMUX1309 |
| Manufacturer | Texas Instruments |
| Product Type | Operational Amplifier |
| Category | Signal Chain |
| Multiplexer Configuration | 4:1, 2-channel differential multiplexer |
| Supply Voltage Range | 1.62 V to 5.5 V |
| Signal Path Direction | Bidirectional |
| Signal Voltage Range | GND to VDD |
| Logic Compatibility | 1.8 V logic compatible |
| Fail-Safe Logic | Supported |
| Injection Current Control | Supported |
| Back-Powering Protection | No ESD diode path to VDD |
| Switching Behavior | Break-before-make |
| Pin-Compatible Devices | Industry standard 4052 and 4852 multiplexers |
| Package Option | PW, TSSOP-16, 5.00 mm x 4.40 mm body size |
| Package Option | DYY, SOT-23-THIN-16, 4.20 mm x 2.00 mm body size |
| Package Option | BQB, WQFN-16, 3.50 mm x 2.50 mm body size |
| Supply Voltage Absolute Maximum | -0.5 V to 6 V |
| Logic Control Input Voltage Absolute Maximum | -0.5 V to 6 V |
| Source or Drain Voltage Absolute Maximum | -0.5 V to VDD + 0.5 V |
| Logic Control Input Current Absolute Maximum | -30 mA to 30 mA |
| Continuous Switch Current Absolute Maximum | -50 mA to 50 mA, TA = -40°C to +85°C |
| Continuous Switch Current Absolute Maximum | -25 mA to 25 mA, TA = -40°C to +125°C |
| Continuous GND Current Absolute Maximum | -100 mA to 100 mA |
| Total Power Dissipation Absolute Maximum | 500 mW |
| Storage Temperature Absolute Maximum | -65°C to 150°C |
| Junction Temperature Absolute Maximum | 150°C |
| Enable Input Function | Active low; EN high turns all switches off |
| Address Inputs | A0 and A1 |
| Decoupling Capacitor Recommendation | 0.1 uF to 10 uF between VDD and GND |
| Thermal Pad Connection | No requirement to solder; leave floating or tie to GND if connected |
| Datasheet Status | request_only |
Product Overview
The TMUX1309 is a Texas Instruments Signal_Chain device configured as a 4:1, 2-channel differential multiplexer. Source and drain pins support bidirectional analog and digital signal paths, with rail-to-rail operation over a signal voltage range from GND to VDD. The supply range is 1.62 V to 5.5 V, and the logic inputs are compatible with 1.8 V logic when a valid supply voltage is present.
Control uses an active-low enable input and A0/A1 address inputs. EN high turns all switches off, while EN low allows the address inputs to select the switch path. The device includes break-before-make switching, fail-safe logic that allows control voltages before VDD, internal injection current control, and no ESD diode path to VDD for back-powering protection.
Available packages are PW TSSOP-16, DYY SOT-23-THIN-16, and BQB WQFN-16. For assembly and operation, Texas Instruments recommends a 0.1 uF to 10 uF decoupling capacitor between VDD and GND. The exposed thermal pad has no soldering requirement; if connected, it may be left floating or tied to GND.
Key Features
- 4:1, 2-channel differential multiplexer configuration
- 1.62 V to 5.5 V supply voltage range
- Bidirectional source and drain signal path support
- Rail-to-rail signal range from GND to VDD
- 1.8 V logic-compatible control inputs
- Fail-safe logic supports control before VDD
- Internal injection current control feature
- No ESD diode path to VDD
- Break-before-make switching behavior
- Active-low enable with A0 and A1 addressing
- Pin-compatible with industry standard 4052 and 4852 multiplexers
- PW, DYY, and BQB package options
Typical Applications
- Bidirectional signal multiplexing
- Differential signal routing
- Analog signal path selection
- Digital signal path selection
- Rail-to-rail signal switching
- 4052 and 4852 compatible designs
- Low-voltage logic-controlled routing
Procurement Notes
When requesting a quote for TMUX1309, 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 multiplexer is the TMUX1309?
The TMUX1309 is a Texas Instruments 4:1, 2-channel differential multiplexer in the Signal_Chain category. Its source and drain pins support bidirectional analog and digital signals over a GND-to-VDD signal range.
What supply and logic levels does TMUX1309 support?
TMUX1309 operates from a 1.62 V to 5.5 V supply range and has 1.8 V logic-compatible control inputs with a valid supply voltage. The source and drain signal range extends from GND to VDD.
How is the TMUX1309 switch path controlled?
TMUX1309 uses an active-low enable input with A0 and A1 address inputs. EN high turns all switches off, while EN low allows the A0 and A1 address pins to select the active switch path.
Which package options are specified for TMUX1309?
TMUX1309 package options include PW TSSOP-16 with a 5.00 mm x 4.40 mm body, DYY SOT-23-THIN-16 with a 4.20 mm x 2.00 mm body, and BQB WQFN-16 with a 3.50 mm x 2.50 mm body.
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.