Texas Instruments SN74LVC1G3157DCKR
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 6-TSSOP, SC-88, SOT-363 |
| Mfr | Texas Instruments |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Number of Circuits | 1 |
| On-State Resistance (Max) | 15Ohm |
| Supplier Device Package | SC-70-6 |
| -3db Bandwidth | 340MHz |
| Switch Circuit | SPDT |
| Voltage - Supply, Single (V+) | 1.65V ~ 5.5V |
| Multiplexer/Demultiplexer Circuit | 2:1 |
| Voltage - Supply, Dual (V±) | - |
| Current - Leakage (IS(off)) (Max) | 1µA |
| Channel Capacitance (CS(off), CD(off)) | 5.2pF |
| Switch Time (Ton, Toff) (Max) | 5.7ns, 3.8ns |
| Charge Injection | 7pC |
| Crosstalk | -54dB @ 10MHz |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | 74LVC1G3157 |
| REACH Status | REACH Unaffected |
| Standard Package | 3,000 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
| Channel-to-Channel Matching (ΔRon) | 100mOhm |
SN74LVC1G3157DCKR SPDT Analog Switch, Single Pole Double Throw IC
The SN74LVC1G3157DCKR from Texas Instruments is a high-performance, single-pole double-throw (SPDT) analog switch built with advanced CMOS technology, housed in a space-saving SC-70-6 package. This IC is engineered for seamless signal routing in mixed-voltage systems, operating from a wide single supply voltage range of 1.65V to 5.5V, making it fully compatible with lower-voltage microcontrollers and FPGAs while retaining the ability to interface with higher-voltage peripherals. Its compact form factor and versatile performance make it an ideal solution for portable electronics, communication modules, and embedded systems where space, power, and signal integrity are critical design constraints.
Key Features and Applications
This device delivers excellent signal fidelity with low and flat on-resistance (typically 10Ω at 4.5V VCC) across the entire analog input range, minimizing distortion and insertion loss for both analog and high-speed digital signals. It supports bidirectional signal flow and features a break-before-make switching action to prevent signal shorts during channel transitions. The SN74LVC1G3157DCKR boasts a very low power consumption, with a typical static current of just microamps, and offers TTL/CMOS-compatible digital control inputs, ensuring easy interfacing with logic circuits. Its robust design includes I/O ports that are tolerant to voltages up to 5.5V, even when the device is powered down, providing protection in complex systems.
The SN74LVC1G3157DCKR is extensively used for signal multiplexing, routing, and switching in a wide variety of applications. These include audio port switching (e.g., headphone/microphone) in mobile phones and tablets, data bus or peripheral (USB, I²C) sharing in embedded systems, analog and digital signal gating in test and measurement equipment, and channel selection in data acquisition systems. Its ability to handle mixed-voltage signals makes it particularly valuable for level translation and interface isolation in battery-powered devices, IoT sensors, and industrial control modules.
Alternative Parts
● NLASB3157 (ON Semiconductor): An ultra-low on-resistance SPDT switch in a miniature package, optimized for high-fidelity audio and data switching in portable devices.
● FSUSB3157 (ON Semiconductor): A low-power, high-speed USB 2.0 analog switch designed specifically for robust USB signal routing and switching.
● MAX14777 (Maxim Integrated/Texas Instruments): A low-voltage, dual SPDT analog switch featuring very low on-resistance and on-capacitance for superior data and audio performance.
● DG9411 (Vishay Siliconix): A sub-1Ω on-resistance SPDT switch engineered for high-performance signal paths with minimal insertion loss and distortion.
