Specifications
| Type | Description |
|---|---|
| Part Number | SN74LV4051A |
| Manufacturer | Texas Instruments |
| Product Type | Operational Amplifier |
| Category | Signal Chain |
| Package / Case | D (SOIC-16) 9.9mm x 6mm; PW (TSSOP-16) 5mm x 6.4mm; RGY (VQFN-16) 4mm x 3.5mm; DYY (SOT-23-THIN-16) 4.2mm x 3.26mm |
| Supply Voltage Operating Range | 1.65 to 5.5 V; VCC operation feature |
| Recommended Supply Voltage | 1 to 5.5 V; over operating free-air temperature range |
| Analog Signal Amplitude | Up to 5.5 V peak; each channel, signals transmitted in either direction |
| Channel Count | 8 channels; CMOS analog multiplexer/demultiplexer |
| Logic Control Inputs | A, B, C, INH; selector lines A/B/C and inhibit input |
| Common Terminal Pin | COM pin 3; output/input of mux |
| Switch I/O Pins | Y0-Y7; pins 13, 14, 15, 12, 1, 5, 2, 4 respectively |
| Inhibit Function | Low turns outputs on; high turns outputs off; INH pin operation |
| Absolute Maximum Supply Voltage | -0.5 to 7.0 V; VCC, over operating free-air temperature range |
| Absolute Maximum Logic Input Voltage | -0.5 to 7.0 V; VI, over operating free-air temperature range |
| Absolute Maximum Switch I/O Voltage | -0.5 to VCC + 0.5 V; limited to 5.5 V maximum |
| Input Clamp Current | -20 mA; VI < 0 |
| Switch I/O Diode Clamp Current | -50 to 50 mA; VIO < 0 or VIO > VCC |
| Switch Continuous Current | ±25 mA; VIO = 0 to VCC |
| Continuous Current Through VCC or GND | ±50 mA; absolute maximum rating |
| Junction Temperature | 150 °C; absolute maximum rating |
| Storage Temperature | -65 to 150 °C; absolute maximum rating |
| ESD Rating HBM | ±2000 V; all pins, human body model per AEC Q100-002 |
| ESD Rating CDM | ±1000 V; all pins, charged device model per AEC Q100-011 |
| Operating Ambient Temperature | -40 to 125 °C; recommended operating conditions |
| Logic Control Input Voltage | 0 to 5.5 V; VI recommended operating condition |
| Switch Input or Output Voltage | 0 to VCC V; VIO recommended operating condition |
| High-Level Input Voltage at VCC = 1.65 V | 1.2 to 5.5 V; logic control inputs |
| High-Level Input Voltage at VCC = 2.3 V to 5.5 V | VCC x 0.7 to 5.5 V; logic control inputs |
| Low-Level Input Voltage at VCC = 1.65 V | 0 to 0.4 V; logic control inputs |
| Low-Level Input Voltage at VCC = 2.3 V to 5.5 V | 0 to VCC x 0.3 V; logic control inputs |
| ON-State Switch Resistance at VCC = 1.65 V | Typ 60 Ω, Max 150 Ω; TA = 25°C, IT = 2 mA, VI = VCC or GND, VINH = VIL |
| ON-State Switch Resistance at VCC = 4.5 V | Typ 22 Ω, Max 75 Ω; TA = 25°C, IT = 2 mA, VI = VCC or GND, VINH = VIL |
| Peak ON-State Resistance | Typ 31 Ω, Max 100 Ω; VCC = 4.5 V, TA = 25°C, IT = 2 mA, VI = GND to VCC, VINH = VIL |
| Control Input Current | Typ 0.1 µA, Max 1 µA; TA = -40°C to 85°C, VCC = 0 to 5.5 V, VI = 5.5 V or GND |
| OFF-State Switch Leakage Current | Typ 0.1 µA, Max 1 µA; TA = -40°C to 85°C, VCC = 5.5 V, VINH = VIH |
| ON-State Switch Leakage Current | Typ 0.1 µA, Max 1 µA; TA = -40°C to 85°C, VCC = 5.5 V, VI = VCC or GND, VINH = VIL |
| Supply Current | Typ 0.01 µA, Max 20 µA; TA = -40°C to 85°C, VCC = 5.5 V, VI = VCC or GND, VINH = 0 V |
| Control Input Capacitance | 2 pF; f = 10 MHz, TA = 25°C, VCC = 3.3 V |
| Switch Terminal Capacitance | 5 pF; f = 10 MHz, TA = 25°C, VCC = 3.3 V |
| Common Terminal Capacitance | 23 pF; f = 10 MHz, TA = 25°C, VCC = 3.3 V |
| Feedthrough Capacitance | 0.5 pF; f = 10 MHz, TA = 25°C, VCC = 3.3 V |
| Power Dissipation Capacitance | 6 pF; CL = 50 pF, f = 10 MHz, TA = 25°C, VCC = 3.3 V |
| Propagation Delay Time | Typ 1.2 ns, Max 6 ns; VCC = 3.3 V ±0.3 V, TA = 25°C, CL = 15 pF, COM or Yn to Yn or COM |
| Enable Delay Time | Typ 4.7 ns, Max 12 ns; VCC = 3.3 V ±0.3 V, TA = 25°C, CL = 15 pF, INH to COM or Yn |
| Disable Delay Time | Typ 5.7 ns, Max 12 ns; VCC = 3.3 V ±0.3 V, TA = 25°C, CL = 15 pF, INH to COM or Yn |
| Datasheet Status | request_only |
Product Overview
The SN74LV4051A is a Texas Instruments 8-channel CMOS analog multiplexer/demultiplexer for Signal_Chain use. It connects one common terminal, COM pin 3, to one of eight bidirectional switch I/O terminals Y0 through Y7 under control of selector inputs A, B, and C. The INH input disables or enables the switch path, with a low level turning outputs on and a high level turning outputs off.
Electrical operation is defined around low-voltage logic and analog switching. The device has a 1.65 to 5.5 V VCC operation feature range, a recommended supply range of 1 to 5.5 V, logic control input voltage from 0 to 5.5 V, and switch input or output voltage from 0 to VCC. Each channel can pass analog signal amplitudes up to 5.5 V peak.
Package options include D SOIC-16, PW TSSOP-16, RGY VQFN-16, and DYY SOT-23-THIN-16. The part is suited to board-level analog signal routing, channel selection, and bidirectional multiplexing where the listed resistance, leakage, capacitance, timing, current, and temperature limits fit the design.
Key Features
- 8-channel CMOS analog multiplexer/demultiplexer topology
- 1.65 to 5.5 V VCC operation feature range
- Analog signal amplitude up to 5.5 V peak
- A, B, C selector inputs plus INH control
- COM terminal assigned to pin 3
- Y0-Y7 switch I/O terminals support bidirectional signals
- INH low enables outputs; INH high disables outputs
- ON resistance typ 22 Ω at 4.5 V VCC
- Propagation delay typ 1.2 ns at 3.3 V
- Operating ambient temperature from -40 to 125 °C
Typical Applications
- Analog signal channel selection
- Bidirectional signal multiplexing
- Sensor signal routing
- Low-voltage analog switching
- COM-to-Y channel routing
- Logic-controlled signal distribution
Procurement Notes
When requesting a quote for SN74LV4051A, 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 SN74LV4051A?
The SN74LV4051A is an 8-channel analog multiplexer/demultiplexer from Texas Instruments. It uses A, B, and C selector inputs with an INH control input to route signals between the COM terminal and Y0 through Y7 switch I/O terminals.
What supply voltage range is specified for SN74LV4051A operation?
The extracted datasheet facts list a 1.65 to 5.5 V VCC operation feature range. Recommended supply voltage is listed as 1 to 5.5 V over the operating free-air temperature range.
How does the SN74LV4051A inhibit input operate?
The INH input controls switch enable behavior. According to the extracted facts, a low level on INH turns outputs on, while a high level on INH turns outputs off.
Which package options are listed for the SN74LV4051A?
The listed package options are D SOIC-16 at 9.9 mm x 6 mm, PW TSSOP-16 at 5 mm x 6.4 mm, RGY VQFN-16 at 4 mm x 3.5 mm, and DYY SOT-23-THIN-16 at 4.2 mm x 3.26 mm.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: June 30, 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.