Specifications
| Type | Description |
|---|---|
| Part Number | TMUX1108 |
| Manufacturer | Texas Instruments |
| Product Type | Operational Amplifier |
| Category | Signal Chain |
| Package / Case | PW TSSOP-16 5 mm x 6.4 mm; RSV QFN-16 2.6 mm x 1.8 mm |
| Multiplexer Configuration | Single channel, 8:1 |
| Supply Range | 1.08 V to 5.5 V single supply; ±2.5 V dual supply |
| Operating Temperature | -40°C to +125°C |
| Logic Compatibility | 1.8 V logic compatible |
| Signal Path Direction | Bidirectional |
| Switching Action | Break-before-make |
| HBM ESD Rating | ±2000 V |
| CDM ESD Rating | ±750 V |
| Recommended Positive Supply Voltage | Min 1.08 V, Max 5.5 V |
| Recommended Negative Supply Voltage | Min -2.75 V, Max 0 V |
| Recommended Supply Rail Difference | Min 1.08 V, Max 5.5 V |
| Signal Path Input/Output Voltage | VSS to VDD |
| Address or Enable Pin Voltage | Min 0 V, Max 5.5 V |
| Continuous Switch Current | 150 mA at Tj = 25°C |
| Continuous Switch Current | 120 mA at Tj = 85°C |
| Continuous Switch Current | 60 mA at Tj = 125°C |
| Peak Switch Current | 300 mA at Tj = 25°C or 85°C, 1 ms period maximum, 10% duty cycle maximum |
| Peak Switch Current | 180 mA at Tj = 125°C, 1 ms period maximum, 10% duty cycle maximum |
| On-Resistance | Typ 2.5 Ω, Max 4 Ω at VDD = 5 V, VS = 0 V to VDD, ISD = 10 mA, TA = 25°C |
| On-Resistance | Typ 4 Ω, Max 8.75 Ω at VDD = 3.3 V, VS = 0 V to VDD, ISD = 10 mA, TA = 25°C |
| On-Resistance Matching | Typ 0.13 Ω, Max 0.5 Ω at VDD = 5 V, VS = 0 V to VDD, ISD = 10 mA, TA = -40°C to +125°C |
| On-Resistance Flatness | Typ 0.85 Ω, Max 1.6 Ω at VDD = 5 V, VS = 0 V to VDD, ISD = 10 mA, TA = -40°C to +125°C |
| Source Off Leakage Current | Typ ±0.005 nA, Max ±0.08 nA at VDD = 5 V, switch off, VD = 4.5 V / 1.5 V, VS = 1.5 V / 4.5 V, TA = 25°C |
| Drain Off Leakage Current | Typ ±0.01 nA, Max ±0.1 nA at VDD = 5 V, switch off, VD = 4.5 V / 1.5 V, VS = 1.5 V / 4.5 V, TA = 25°C |
| Channel On Leakage Current | Typ ±0.003 nA, Max ±0.025 nA at VDD = 5 V, switch on, VD = VS = 2.5 V, TA = 25°C |
| Input Logic High | Min 1.49 V, Max 5.5 V at VDD = 5 V, EN/A0/A1/A2, TA = -40°C to +125°C |
| Input Logic Low | Min 0 V, Max 0.87 V at VDD = 5 V, EN/A0/A1/A2, TA = -40°C to +125°C |
| Supply Current | Typ 0.008 µA, Max 1 µA at VDD = 5 V, logic inputs = 0 V or 5.5 V |
| Transition Time Between Channels | Typ 14 ns, Max 19 ns at VDD = 5 V, VS = 3 V, RL = 200 Ω, CL = 15 pF |
| Break-Before-Make Time | Typ 8 ns, Min 1 ns at VDD = 5 V, VS = 3 V, RL = 200 Ω, CL = 15 pF |
| Enable Turn-On Time | Typ 12 ns, Max 20 ns at VDD = 5 V, VS = 3 V, RL = 200 Ω, CL = 15 pF |
| Enable Turn-Off Time | Typ 6 ns, Max 9 ns at VDD = 5 V, VS = 3 V, RL = 200 Ω, CL = 15 pF |
| Charge Injection | Typ -1 pC at VDD = 5 V, VS = 1 V, RS = 0 Ω, CL = 1 nF, TA = 25°C |
| Bandwidth | Typ 90 MHz at VDD = 5 V, RL = 50 Ω, CL = 5 pF, TA = 25°C |
| Datasheet Status | request_only |
Product Overview
The TMUX1108 is a Texas Instruments single-channel, 8:1 precision CMOS multiplexer for Signal_Chain routing. Its source pins and drain pin are bidirectional, allowing either side of the signal path to act as input or output within the VSS to VDD signal range.
The device supports 1.08 V to 5.5 V single-supply operation and ±2.5 V dual-supply operation, with recommended VDD - VSS from 1.08 V to 5.5 V. Logic control is 1.8 V compatible, with address or enable pins rated from 0 V to 5.5 V.
Switching behavior includes break-before-make action, 14 ns typical transition time between channels, 12 ns typical enable turn-on time, and 6 ns typical enable turn-off time at 5 V test conditions. Analog performance includes 2.5 Ω typical on-resistance at 5 V, 0.13 Ω typical matching, 0.85 Ω typical flatness, -1 pC typical charge injection, and 90 MHz typical bandwidth.
Package options include PW TSSOP-16 5 mm x 6.4 mm and RSV QFN-16 2.6 mm x 1.8 mm, supporting compact precision signal multiplexing assemblies.
Key Features
- Single-channel 8:1 precision CMOS multiplexer
- 1.08 V to 5.5 V single-supply operation
- ±2.5 V dual-supply operation supported
- Bidirectional signal path from VSS to VDD
- 1.8 V logic-compatible control inputs
- Break-before-make switching action
- 2.5 Ω typical on-resistance at 5 V
- 14 ns typical transition time between channels
- 90 MHz typical bandwidth at 5 V
- -40°C to +125°C operating temperature range
Typical Applications
- Precision signal multiplexing
- Bidirectional analog signal routing
- Low-voltage signal chain switching
- Multi-channel sensor selection
- Data acquisition input routing
- Control-input selected channel routing
Procurement Notes
When requesting a quote for TMUX1108, 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 multiplexer configuration does the TMUX1108 provide?
The TMUX1108 provides a single-channel, 8:1 multiplexer configuration. Its source pins and drain pin are bidirectional, so the selected signal path can pass signals in either direction within the VSS to VDD range.
What supply range is specified for the TMUX1108?
The TMUX1108 supports 1.08 V to 5.5 V single-supply operation and ±2.5 V dual-supply operation. The recommended VDD - VSS rail difference is specified from 1.08 V to 5.5 V.
What switching timing parameters are listed for TMUX1108?
At 5 V test conditions, the TMUX1108 has 14 ns typical transition time between channels, 8 ns typical break-before-make time, 12 ns typical enable turn-on time, and 6 ns typical enable turn-off time.
Which packages are available for the TMUX1108?
The extracted datasheet facts list two package options: PW TSSOP-16 measuring 5 mm x 6.4 mm and RSV QFN-16 measuring 2.6 mm x 1.8 mm.
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.