Overview
The SN74LVC1G3157DBVRE4, produced by Texas Instruments, is a single-channel single-pole double-throw (SPDT) analog switch. This device is designed to operate within a voltage range of 1.65 V to 5.5 V, making it versatile for various applications. It can handle both analog and digital signals, allowing for signal amplitudes up to VCC (peak) to be transmitted in either direction. The device is known for its high-speed operation, low ON-state resistance, and robust ESD protection, exceeding JESD 22 standards for both Human Body Model (HBM) and Charged-Device Model (CDM).
Key Specifications
| Parameter | Min | Max | Unit |
|---|---|---|---|
| VCC Supply Voltage | 1.65 | 5.5 | V |
| VI/O Switch Input or Output Voltage | 0 | VCC | V |
| VIN Control Input Voltage | 0 | 5.5 | V |
| VIH High-Level Input Voltage | VCC × 0.75 (1.65 V to 1.95 V) | VCC × 0.7 (2.3 V to 5.5 V) | V |
| VIL Low-Level Input Voltage | VCC × 0.25 (1.65 V to 1.95 V) | VCC × 0.3 (2.3 V to 5.5 V) | V |
| TA Operating Free-Air Temperature | -40 | 125 | °C |
| ron ON-State Resistance | 11 | 20 | Ω |
| tpd Propagation Delay | 0.3 | 2.0 | ns |
| ESD Protection | ±2000 V (HBM), ±1000 V (CDM) | V |
Key Features
- ESD protection exceeding JESD 22 standards: 2000-V Human Body Model (HBM) and 1000-V Charged-Device Model (CDM).
- Operates within a voltage range of 1.65 V to 5.5 V.
- Qualified for operation up to 125°C.
- Specified break-before-make switching.
- Rail-to-rail signal handling.
- High-speed operation, typically 0.5 ns at VCC = 3 V and CL = 50 pF.
- Low ON-state resistance, typically around 6 Ω at VCC = 4.5 V.
- Latch-up performance exceeds 100 mA per JESD 78, Class II.
Applications
- Wearables and mobile devices.
- Portable computing.
- Internet of Things (IoT).
- Audio signal routing.
- Remote radio units.
- Portable medical equipment.
- Surveillance.
- Home automation.
- I2C/SPI/UART bus multiplexing.
- Wireless charging.
Q & A
- What is the operating voltage range of the SN74LVC1G3157DBVRE4?
The operating voltage range is from 1.65 V to 5.5 V.
- What are the ESD protection ratings for this device?
The device has ESD protection exceeding JESD 22 standards: 2000-V Human Body Model (HBM) and 1000-V Charged-Device Model (CDM).
- What is the typical ON-state resistance of the SN74LVC1G3157DBVRE4?
The typical ON-state resistance is around 6 Ω at VCC = 4.5 V.
- What are the common applications of the SN74LVC1G3157DBVRE4?
Common applications include wearables, mobile devices, IoT, audio signal routing, remote radio units, portable medical equipment, surveillance, home automation, and I2C/SPI/UART bus multiplexing.
- What is the maximum operating temperature for this device?
The maximum operating temperature is 125°C for most packages, with some packages rated up to 85°C.
- Does the SN74LVC1G3157DBVRE4 support rail-to-rail signal handling?
- What is the propagation delay of the SN74LVC1G3157DBVRE4?
The propagation delay is typically around 0.3 ns to 2.0 ns depending on the VCC and load conditions.
- How many packages are available for the SN74LVC1G3157DBVRE4?
The device is available in several packages including SOT-23, SC70, SOT, SON, DSBGA, and X2SON.
- Is the SN74LVC1G3157DBVRE4 suitable for high-speed applications?
- What should be done with unused inputs of the SN74LVC1G3157DBVRE4 to ensure proper operation?
All unused inputs must be held at VCC or GND to ensure proper device operation.
