Specifications
| Type | Description |
|---|---|
| Part Number | SN74CBTLV3257 |
| Manufacturer | Texas Instruments |
| Product Type | Operational Amplifier |
| Category | Signal Chain |
| Package / Case | SOIC(16) 9.90 mm x 3.91 mm; SSOP(16) 4.90 mm x 3.90 mm; TSSOP(16) 5.00 mm x 4.40 mm; TVSOP(16) 3.60 mm x 4.40 mm; VQFN(16) 4.00 mm x 3.50 mm; UQFN(16) 2.60 mm x 1.80 mm |
| Supply voltage recommended | 2.3 to 3.6 V; recommended operating conditions, over operating free-air temperature range |
| Supply voltage absolute maximum | -0.5 to 4.6 V; absolute maximum ratings |
| Input voltage absolute maximum | -0.5 to 4.6 V; absolute maximum ratings |
| Continuous channel current | 128 mA max; absolute maximum ratings |
| Input clamp current | -50 mA; VI/O < 0 |
| Junction temperature | 150 °C max; absolute maximum ratings |
| Storage temperature | -65 to 150 °C; absolute maximum ratings |
| ESD rating HBM | 2000 V; human-body model, ANSI/ESDA/JEDEC JS-001 |
| High-level control input voltage | 1.7 V min; VCC = 2.3 V to 2.7 V |
| High-level control input voltage | 2.0 V min; VCC = 2.7 V to 3.6 V |
| Low-level control input voltage | 0.7 V max; VCC = 2.3 V to 2.7 V |
| Low-level control input voltage | 0.8 V max; VCC = 2.7 V to 3.6 V |
| Operating free-air temperature | -40 to 85 °C; recommended operating conditions |
| Input clamp voltage | -1.2 V max; VCC = 3 V, II = -18 mA |
| Input leakage current | ±1 µA max; VCC = 3.6 V, VI = VCC or GND |
| Power-off leakage current | 15 µA max; VCC = 0, VI or VO = 0 to 3.6 V |
| Supply current | 10 µA max; VCC = 3.6 V, ICC = 0, VO = VI or GND |
| Delta supply current | 300 µA max; control inputs, VCC = 3.6 V, one input at 3 V, other inputs at VCC or GND |
| Input capacitance | 3 pF typical; VI = 3 V or 0 V |
| Off-state I/O capacitance, A port | 10.5 pF typical; VO = 3 V or 0 V, OE = VCC |
| Off-state I/O capacitance, B port | 5.5 pF typical; VO = 3 V or 0 V, OE = VCC |
| On-state resistance | 5 Ω typ, 8 Ω max; VCC = 2.3 V, VI = 0 V, II = 64 mA; typical at VCC = 2.5 V |
| On-state resistance | 5 Ω typ, 8 Ω max; VCC = 2.3 V, VI = 0 V, II = 24 mA; typical at VCC = 2.5 V |
| On-state resistance | 27 Ω typ, 40 Ω max; VCC = 2.3 V, VI = 1.7 V, II = 15 mA; typical at VCC = 2.5 V |
| On-state resistance | 5 Ω typ, 7 Ω max; VCC = 3 V, VI = 0 V, II = 64 mA |
| On-state resistance | 5 Ω typ, 7 Ω max; VCC = 3 V, VI = 0 V, II = 24 mA |
| On-state resistance | 10 Ω typ, 15 Ω max; VCC = 3 V, VI = 2.4 V, II = 15 mA |
| Propagation delay | 0.15 ns max; VCC = 2.5 V ±0.2 V, from A or B to B or A |
| Propagation delay | 0.25 ns max; VCC = 3.3 V ±0.3 V, from A or B to B or A |
| Enable time from select | 1.8 ns min, 6.1 ns max; VCC = 2.5 V ±0.2 V, S to A or B |
| Enable time from select | 1.8 ns min, 5.3 ns max; VCC = 3.3 V ±0.3 V, S to A or B |
| Disable time from output enable | 1.6 ns min, 5.5 ns max; VCC = 3.3 V ±0.3 V, OE to A or B |
| Control function | OE disables FET multiplexers/demultiplexers when high; device description and overview |
| Partial-power-down support | Ioff supports partial-power-down operation and power-off isolation; device description |
| Datasheet Status | request_only |
Product Overview
The SN74CBTLV3257 is a Texas Instruments Signal_Chain device described as a 4-bit 1-of-2 FET multiplexer/demultiplexer. Its control scheme uses OE to disable the FET multiplexers/demultiplexers when high, while the select input controls routing between the A and B signal paths.
Recommended operation is specified at 2.3 to 3.6 V with a -40 to 85 °C operating free-air temperature range. Absolute maximum limits include -0.5 to 4.6 V for supply voltage and input voltage, 128 mA maximum continuous channel current, 150 °C maximum junction temperature, and -65 to 150 °C storage temperature.
Electrical characteristics include 10 µA maximum supply current at VCC = 3.6 V, ±1 µA maximum input leakage, and 15 µA maximum power-off leakage with VCC = 0. Ioff support enables partial-power-down operation and power-off isolation. Package options include SOIC(16), SSOP(16), TSSOP(16), TVSOP(16), VQFN(16), and UQFN(16), covering multiple assembly footprints.
Key Features
- 4-bit 1-of-2 FET multiplexer/demultiplexer architecture
- Recommended 2.3 to 3.6 V supply range
- OE high disables FET multiplexers and demultiplexers
- Ioff supports partial-power-down and power-off isolation
- 0.15 ns maximum A/B propagation delay at 2.5 V
- 10 µA maximum supply current at VCC = 3.6 V
- 128 mA maximum continuous channel current
- 2000 V HBM ESD rating per JS-001
- -40 to 85 °C operating free-air range
- Multiple 16-pin SOIC, SSOP, TSSOP, TVSOP, VQFN, UQFN packages
Typical Applications
- Low-voltage signal multiplexing
- Signal demultiplexing paths
- A/B bus signal routing
- Power-off signal isolation
- Partial-power-down systems
- Control-input selected switching
- Compact 16-pin assemblies
Procurement Notes
When requesting a quote for SN74CBTLV3257, 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 SN74CBTLV3257?
The SN74CBTLV3257 is a Texas Instruments 4-bit 1-of-2 FET multiplexer/demultiplexer in the Signal_Chain category. Its OE input disables the FET multiplexers/demultiplexers when driven high.
What supply voltage range is recommended for SN74CBTLV3257 operation?
The recommended supply voltage range is 2.3 to 3.6 V over the specified operating free-air temperature range. Absolute maximum supply voltage is listed separately as -0.5 to 4.6 V.
Does the SN74CBTLV3257 support power-off isolation?
Yes. The extracted datasheet facts state that Ioff supports partial-power-down operation and power-off isolation. Power-off leakage current is specified as 15 µA maximum with VCC = 0 and VI or VO from 0 to 3.6 V.
Which package options are listed for the SN74CBTLV3257?
Listed package options include SOIC(16), SSOP(16), TSSOP(16), TVSOP(16), VQFN(16), and UQFN(16). The package dimensions range from 9.90 mm x 3.91 mm for SOIC to 2.60 mm x 1.80 mm for UQFN.
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.