Specifications
| Type | Description |
|---|---|
| Part Number | SN74LVC1G66 |
| Manufacturer | Texas Instruments |
| Product Type | Operational Amplifier |
| Category | Signal Chain |
| Package / Case | DBV SOT-23-5 2.90mm x 2.80mm; DCK SC70-5 2.00mm x 2.10mm; DRL SOT-5 1.60mm x 1.60mm; DRY SON/USON-6 1.45mm x 1.00mm; YZP DSBGA-5 1.39mm x 0.89mm; DSF SON/X2SON-6 1.00mm x 1.00mm |
| Supply Voltage Operating Range | 1.65 to 5.5 V; recommended operating conditions |
| I/O Port Voltage Range | 0 to VCC V; recommended operating conditions |
| Control Input Voltage Range | 0 to 5.5 V; recommended operating conditions |
| Operating Free-Air Temperature | -40 to 125 °C; DCK and DBV packages |
| Operating Free-Air Temperature | -40 to 85 °C; DRL, DRY, YZP, and DSF packages |
| High-Level Control Input Voltage | 0.65 x VCC min; VCC = 1.65 V to 1.95 V |
| High-Level Control Input Voltage | 0.7 x VCC min; VCC = 2.3 V to 5.5 V |
| Low-Level Control Input Voltage | 0.35 x VCC max; VCC = 1.65 V to 1.95 V |
| Low-Level Control Input Voltage | 0.3 x VCC max; VCC = 2.3 V to 5.5 V |
| Control Input Rise/Fall Time | 20 ns/V max; VCC = 1.65 V to 2.7 V |
| Control Input Rise/Fall Time | 10 ns/V max; VCC = 3 V to 5.5 V |
| ON-State Switch Resistance | 12 typ, 30 max ohm; VI = VCC or GND, VC = VIH, IS = 4 mA, VCC = 1.65 V |
| ON-State Switch Resistance | 9 typ, 20 max ohm; VI = VCC or GND, VC = VIH, IS = 8 mA, VCC = 2.3 V |
| ON-State Switch Resistance | 7.5 typ, 15 max ohm; VI = VCC or GND, VC = VIH, IS = 24 mA, VCC = 3 V |
| ON-State Switch Resistance | 5.5 typ, 10 max ohm; VI = VCC or GND, VC = VIH, IS = 32 mA, VCC = 4.5 V |
| Peak ON Resistance | 125 typ, 200 max ohm; DCK/DBV packages, VI = VCC to GND, VC = VIH, IS = 4 mA, VCC = 1.65 V |
| Peak ON Resistance | 35 typ, 60 max ohm; DCK/DBV packages, VI = VCC to GND, VC = VIH, IS = 8 mA, VCC = 2.3 V |
| Peak ON Resistance | 11.5 typ, 25 max ohm; DCK/DBV packages, VI = VCC to GND, VC = VIH, IS = 24 mA, VCC = 3 V |
| Peak ON Resistance | 7.5 typ, 15 max ohm; DCK/DBV packages, VI = VCC to GND, VC = VIH, IS = 32 mA, VCC = 4.5 V |
| Peak ON Resistance | 74.5 typ, 120 max ohm; DRL/DRY/YZP/DSF packages, VI = VCC to GND, VC = VIH, IS = 4 mA, VCC = 1.65 V |
| Peak ON Resistance | 20 typ, 30 max ohm; DRL/DRY/YZP/DSF packages, VI = VCC to GND, VC = VIH, IS = 8 mA, VCC = 2.3 V |
| OFF-State Switch Leakage Current | ±1 µA max; ±0.1 µA max at TA = 25 °C; VI = VCC and VO = GND or VI = GND and VO = VCC, VC = VIL, VCC = 5.5 V |
| ON-State Switch Leakage Current | ±1 µA max; ±0.1 µA max at TA = 25 °C; VI = VCC or GND, VC = VIH, VO = open, VCC = 5.5 V |
| Control Input Current | ±1 µA max; ±0.1 µA max at TA = 25 °C; VC = VCC or GND, VCC = 5.5 V |
| Supply Current | 10 µA max; 1 µA max at TA = 25 °C; VC = VCC or GND, VCC = 5.5 V |
| Supply Current Change | 500 µA max; VC = VCC - 0.6 V, VCC = 5.5 V |
| Control Input Capacitance | 2 pF typ; VCC = 5 V |
| Switch Input/Output Capacitance OFF | 6 pF typ; VCC = 5 V |
| Switch Input/Output Capacitance ON | 15 pF typ; DCK/DBV packages, VCC = 5 V |
| Switch Input/Output Capacitance ON | 13 pF typ; DRL/DRY/YZP/DSF packages, VCC = 5 V |
| Propagation Delay | 0.8 ns max; A or B to B or A, VCC = 3.3 V ±0.3 V, DBV/DCK packages |
| Propagation Delay | 0.6 ns max; A or B to B or A, VCC = 5 V ±0.5 V, DBV/DCK packages |
| Enable Time | 1.8 min, 5 max ns; C to A or B, VCC = 3.3 V ±0.3 V, DBV/DCK packages |
| Disable Time | 2 min, 6.5 max ns; C to A or B, VCC = 3.3 V ±0.3 V, DBV/DCK packages |
| Frequency Response | 175 MHz typ; Switch ON, CL = 50 pF, RL = 600 ohm, sine wave input, VCC = 3 V, TA = 25 °C |
| Frequency Response | >300 MHz typ; Switch ON, CL = 5 pF, RL = 50 ohm, sine wave input, VCC = 1.65 V to 4.5 V, TA = 25 °C |
| Crosstalk Control to Signal Output | 70 mV typ; CL = 50 pF, RL = 600 ohm, fin = 1 MHz square wave, VCC = 3 V, TA = 25 °C |
| Feedthrough Attenuation | -58 dB typ; Switch OFF, CL = 50 pF, RL = 600 ohm, fin = 1 MHz sine wave, VCC = 1.65 V to 4.5 V, TA = 25 °C |
| Sine-Wave Distortion | 0.015% typ; DCK/DBV packages, CL = 50 pF, RL = 10 kohm, fin = 1 kHz or 10 kHz sine wave, VCC = 3 V, TA = 25 °C |
| Sine-Wave Distortion | 0.01% typ; DCK/DBV and DRL/DRY/YZP/DSF packages, CL = 50 pF, RL = 10 kohm, fin = 1 kHz or 10 kHz sine wave, VCC = 4.5 V, TA = 25 °C |
| Human-Body Model ESD Rating | +2000 V; per ANSI/ESDA/JEDEC JS-001 |
| Charged-Device Model ESD Rating | +1000 V; per JEDEC JESD22-C101 |
| Maximum ON-State Switch Current | ±50 mA; absolute maximum rating, VI/O < 0 to VCC |
| Continuous Current Through VCC or GND | ±100 mA; absolute maximum rating |
| Datasheet Status | request_only |
Product Overview
The SN74LVC1G66 is a Texas Instruments single bilateral analog switch in the Signal_Chain category. Its recommended supply range is 1.65 to 5.5 V, with the switch I/O port specified from 0 to VCC and the control input specified from 0 to 5.5 V. Control thresholds scale with VCC, using 0.65 × VCC high-level minimum at 1.65 to 1.95 V and 0.7 × VCC high-level minimum from 2.3 to 5.5 V.
Switch resistance depends on supply voltage and package group. ON-state switch resistance is specified as 12 ohm typical at 1.65 V and 5.5 ohm typical at 4.5 V, with peak ON resistance data separated for DCK/DBV and DRL/DRY/YZP/DSF packages. Leakage, supply current, capacitance, propagation delay, enable time, and disable time are characterized in the extracted datasheet data.
Package options include SOT-23-5, SC70-5, SOT-5, SON/USON-6, DSBGA-5, and SON/X2SON-6 footprints. DCK and DBV versions are specified for -40 to 125 °C operation, while DRL, DRY, YZP, and DSF versions are specified for -40 to 85 °C. Applications can use the device for low-voltage analog signal routing, fast signal switching, and signal paths where capacitance, distortion, crosstalk, and feedthrough attenuation matter.
Key Features
- 1.65 to 5.5 V recommended supply range
- I/O port range from 0 to VCC
- Control input range from 0 to 5.5 V
- ON resistance down to 5.5 ohm typical at 4.5 V
- Propagation delay to 0.6 ns maximum at 5 V
- Frequency response greater than 300 MHz typical under 50 ohm load
- OFF-state feedthrough attenuation of -58 dB typical
- Sine-wave distortion to 0.01% typical at 4.5 V
- Control input capacitance of 2 pF typical
- HBM ESD rating of +2000 V
Typical Applications
- Low-voltage analog signal switching
- Bidirectional signal path routing
- Fast A-to-B signal switching
- Control-gated signal isolation
- Low-distortion sine-wave signal paths
- Signal paths needing low feedthrough
- Compact package signal-chain designs
Procurement Notes
When requesting a quote for SN74LVC1G66, 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 supply voltage range does the SN74LVC1G66 support?
The SN74LVC1G66 is specified for a recommended operating supply voltage range of 1.65 to 5.5 V. Its I/O port voltage range is 0 to VCC, while the control input voltage range is 0 to 5.5 V.
How does ON-state resistance vary with supply voltage?
ON-state switch resistance decreases as the listed supply voltage increases. The extracted data shows 12 ohm typical at 1.65 V, 9 ohm typical at 2.3 V, 7.5 ohm typical at 3 V, and 5.5 ohm typical at 4.5 V.
Which package temperature ranges are specified for this device?
DCK and DBV packages are specified for -40 to 125 °C operating free-air temperature. DRL, DRY, YZP, and DSF packages are specified for -40 to 85 °C operating free-air temperature.
What switching speed parameters are listed for DBV and DCK packages?
For DBV and DCK packages, propagation delay is specified as 0.8 ns maximum at 3.3 V ±0.3 V and 0.6 ns maximum at 5 V ±0.5 V. Enable time is 1.8 ns minimum and 5 ns maximum at 3.3 V ±0.3 V.
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.