Overview
The SN74LVC1G3157DBVR, produced by Texas Instruments, is a single-pole double-throw (SPDT) analog switch designed for versatile signal management. This device operates within a wide voltage range of 1.65 V to 5.5 V, making it suitable for various applications in both analog and digital systems. It is capable of handling signals with amplitudes up to the supply voltage (VCC) in either direction, enhancing its utility in signal gating, chopping, modulation, demodulation, and signal multiplexing for analog-to-digital and digital-to-analog conversion systems.
Key Specifications
| Parameter | Min | Max | Unit |
|---|---|---|---|
| VCC Supply Voltage | -0.5 | 6.5 | V |
| VIN Control Input Voltage | -0.5 | 6.5 | V |
| VI/O Switch I/O Voltage | -0.5 | VCC + 0.5 | V |
| TA Operating Free-Air Temperature (DBV, DCK, DRL, DRY, DSF packages) | -40 | 125 | °C |
| TA Operating Free-Air Temperature (BGA package) | -40 | 85 | °C |
| Propagation Delay (tpd) at VCC = 1.8 V | 2 | 1.2 | ns |
| Propagation Delay (tpd) at VCC = 2.5 V | 0.8 | 0.3 | ns |
| Propagation Delay (tpd) at VCC = 3.3 V | 0.3 | 0.2 | ns |
| Propagation Delay (tpd) at VCC = 5 V | 0.2 | 0.1 | ns |
Key Features
- ESD protection exceeds JESD 22: 2000-V Human Body Model (A114-A) and 1000-V Charged-Device Model (C101)
- Wide supply voltage range: 1.65 V to 5.5 V
- Single-pole double-throw (SPDT) configuration
- Handles both analog and digital signals with amplitudes up to VCC (peak)
- I/O switch enables signal transmission in either direction
- Qualified for automotive applications (SN74LVC1G3157-Q1 variant)
Applications
- Signal gating
- Signal chopping
- Modulation or demodulation (modem)
- Signal multiplexing for analog-to-digital and digital-to-analog conversion systems
- I2C/SPI/UART bus multiplexing
- Wireless charging
Q & A
- What is the operating voltage range of the SN74LVC1G3157DBVR?
The operating voltage range is from 1.65 V to 5.5 V.
- What types of signals can the SN74LVC1G3157DBVR handle?
The device can handle both analog and digital signals.
- What is the maximum amplitude of signals that can be transmitted through the SN74LVC1G3157DBVR?
Signals with amplitudes up to VCC (peak) can be transmitted.
- What are some common applications of the SN74LVC1G3157DBVR?
Applications include signal gating, chopping, modulation or demodulation, and signal multiplexing for analog-to-digital and digital-to-analog conversion systems.
- Does the SN74LVC1G3157DBVR have ESD protection?
- What are the package options available for the SN74LVC1G3157DBVR?
The device is available in SOT-23 (DBV), SC70 (DCK), SOT (DRL), and other packages.
- What is the propagation delay of the SN74LVC1G3157DBVR at different VCC levels?
The propagation delay varies from 2 ns to 0.1 ns depending on the VCC level.
- Is the SN74LVC1G3157DBVR qualified for automotive applications?
The SN74LVC1G3157-Q1 variant is qualified for automotive applications.
- What is the operating temperature range for the SN74LVC1G3157DBVR?
The operating temperature range is from -40°C to 125°C for most packages and up to 85°C for BGA packages.
- How should unused inputs of the SN74LVC1G3157DBVR be handled?
Unused inputs must be held at VCC or GND to ensure proper device operation.
