Specifications
| Type | Description |
|---|---|
| Part Number | SN74LVC2G126 |
| Manufacturer | Texas Instruments |
| Product Type | Operational Amplifier |
| Category | Signal Chain |
| Package / Case | SM8/DCT 8-pin 2.95 mm x 2.80 mm; VSSOP/DCU 8-pin 2.30 mm x 2.00 mm; DSBGA/YZP 8-pin 1.91 mm x 0.91 mm |
| Function | Dual line driver with 3-state outputs; output disabled when output-enable input is low |
| Operating Supply Voltage | 1.65-5.5 V; recommended operating conditions |
| Data Retention Supply Voltage | 1.5 V; data retention only |
| Absolute Maximum Supply Voltage | -0.5 to 6.5 V; over operating free-air temperature range |
| Input Voltage Range | 0 to 5.5 V; recommended operating conditions |
| Absolute Maximum Input Voltage | -0.5 to 6.5 V; input clamp-current ratings must be observed if exceeded |
| High-Level Input Voltage | 0.65 x VCC min; VCC = 1.65 V to 1.95 V |
| High-Level Input Voltage | 1.7 V min; VCC = 2.3 V to 2.7 V |
| High-Level Input Voltage | 2.0 V min; VCC = 3.0 V to 3.6 V |
| High-Level Input Voltage | 0.7 x VCC min; VCC = 4.5 V to 5.5 V |
| Low-Level Input Voltage | 0.35 x VCC max; VCC = 1.65 V to 1.95 V |
| Low-Level Input Voltage | 0.7 V max; VCC = 2.3 V to 2.7 V |
| Low-Level Input Voltage | 0.8 V max; VCC = 3.0 V to 3.6 V |
| Low-Level Input Voltage | 0.3 x VCC max; VCC = 4.5 V to 5.5 V |
| Output Voltage Range | 0 to VCC; output in high or low state |
| Output Voltage Range | 0 to 5.5 V; output in 3-state mode |
| High-Level Output Current | -4 mA; VCC = 1.65 V |
| High-Level Output Current | -8 mA; VCC = 2.3 V |
| High-Level Output Current | -16 mA to -24 mA; VCC = 3.0 V |
| High-Level Output Current | -32 mA; VCC = 4.5 V |
| Low-Level Output Current | 4 mA; VCC = 1.65 V |
| Low-Level Output Current | 8 mA; VCC = 2.3 V |
| Low-Level Output Current | 16 mA to 24 mA; VCC = 3.0 V |
| Low-Level Output Current | 32 mA; VCC = 4.5 V |
| Maximum Propagation Delay | 4 ns max; VCC = 3.3 V, -40°C to +85°C, A to Y |
| Propagation Delay | 1.4-5.0 ns; VCC = 3.3 V ±0.3 V, -40°C to +125°C, A to Y |
| Enable Time | 1.5-4.1 ns; VCC = 3.3 V ±0.3 V, -40°C to +85°C, OE to Y |
| Disable Time | 1.0-4.4 ns; VCC = 3.3 V ±0.3 V, -40°C to +85°C, OE to Y |
| Quiescent Supply Current | 10 µA max; VI = 5.5 V or GND, IO = 0, VCC = 1.65 V to 5.5 V |
| Input Leakage Current | ±5 µA max; A or OE inputs, VI = 5.5 V or GND, VCC = 0 to 5.5 V |
| Power-Off Leakage Current | ±10 µA max; VI or VO = 5.5 V, VCC = 0 V |
| High-Impedance Output Leakage Current | 10 µA max; VO = 0 to 5.5 V, VCC = 3.6 V |
| Operating Free-Air Temperature | -40 to +125 °C; recommended operating conditions |
| ESD Rating Human Body Model | 2000 V; per ANSI/ESDA/JEDEC JS-001 |
| ESD Rating Charged Device Model | 1000 V; per JEDEC JESD22-C101 |
| Junction-to-Ambient Thermal Resistance | 220 °C/W; DCT SM8 package, 8 pins |
| Junction-to-Ambient Thermal Resistance | 227 °C/W; DCU VSSOP package, 8 pins |
| Junction-to-Ambient Thermal Resistance | 102 °C/W; YZP DSBGA package, 8 pins |
| Datasheet Status | request_only |
Product Overview
The SN74LVC2G126 is a Texas Instruments dual bus buffer gate for Signal_Chain designs requiring two non-inverting line-driver channels with 3-state outputs. Its outputs are disabled when the corresponding output-enable input is low, allowing a driven signal path to be disconnected from a bus or shared node under logic control.
Recommended operation covers a 1.65 V to 5.5 V supply range, with 1.5 V specified for data retention only. Inputs support a recommended 0 to 5.5 V range, while outputs support 0 to VCC when actively driven and 0 to 5.5 V in 3-state mode. Logic thresholds are specified across 1.65 V to 5.5 V VCC ranges, and output current ratings scale from 4 mA at 1.65 V to 32 mA at 4.5 V.
The device is available in compact 8-pin SM8/DCT, VSSOP/DCU, and DSBGA/YZP packages. Timing data includes 4 ns maximum A-to-Y propagation delay at 3.3 V and -40 °C to +85 °C, with 1.4 ns to 5.0 ns propagation delay over 3.3 V ±0.3 V and -40 °C to +125 °C. These facts support use in voltage-flexible digital signal buffering and bus-isolation functions.
Key Features
- Dual line driver with 3-state output control
- Outputs disable when output-enable input is low
- 1.65 V to 5.5 V recommended supply range
- 1.5 V supply specified for data retention only
- Inputs support 0 to 5.5 V recommended range
- Driven outputs support 0 to VCC voltage range
- 3-state outputs tolerate 0 to 5.5 V
- 4 ns maximum propagation delay at 3.3 V
- 10 µA maximum quiescent supply current
- -40 to +125 °C operating free-air temperature
Typical Applications
- Controlled digital bus buffering
- 3-state signal isolation
- Dual line driver stages
- Voltage-flexible logic interfaces
- Power-off tolerant signal paths
- Compact digital signal routing
Procurement Notes
When requesting a quote for SN74LVC2G126, 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 function does the SN74LVC2G126 provide?
The SN74LVC2G126 is a dual line driver with 3-state outputs. Its output is disabled when the output-enable input is low, allowing the device to disconnect its driven output from a bus or signal line.
What supply voltage range is recommended for this device?
The recommended operating supply voltage range is 1.65 V to 5.5 V. A 1.5 V supply condition is specified for data retention only, not for normal recommended operation.
Which package options are listed for SN74LVC2G126?
The listed package options are SM8/DCT 8-pin at 2.95 mm x 2.80 mm, VSSOP/DCU 8-pin at 2.30 mm x 2.00 mm, and DSBGA/YZP 8-pin at 1.91 mm x 0.91 mm.
What output voltage ranges are specified?
When the output is in a high or low state, the output voltage range is 0 to VCC. In 3-state mode, the output voltage range is specified as 0 to 5.5 V.
What timing parameters are specified at 3.3 V operation?
At VCC = 3.3 V and -40°C to +85°C, A-to-Y maximum propagation delay is 4 ns. Over 3.3 V ±0.3 V and -40°C to +125°C, A-to-Y propagation delay is 1.4 ns to 5.0 ns.
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.