Overview
The SN74LVC1G3157-Q1, also known as 1P1G3157QDCKRQ1, is a single-pole double-throw (SPDT) analog switch designed by Texas Instruments. This device is optimized for 1.65-V to 5.5-V VCC operation, making it versatile for various analog and digital signal handling applications. It is particularly suited for automotive systems due to its AEC-Q100 qualification and functional safety capabilities. The device features rail-to-rail signal handling, high speed, and low ON-state resistance, making it ideal for signal gating, chopping, modulation, demodulation, and signal multiplexing in analog-to-digital and digital-to-analog conversion systems.
Key Specifications
| Parameter | Min | Typ | 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 | |
| ON-State Switch Resistance (VCC = 3 V, IO = 24 mA) | 7 | 9.5 | Ω | |
| Propagation Delay Time (VCC = 3 V, CL = 50 pF) | 0.5 | ns | ||
| Operating Temperature Range | -40 | 125 | °C | |
| Package Type | SOT-23 (DBV), SC70 (DCK) | |||
| Package Size | 2.90 mm × 1.60 mm (DBV), 2.00 mm × 1.25 mm (DCK) |
Key Features
- Functional safety-capable with documentation to aid in system design.
- AEC-Q100 qualified for automotive applications with a temperature grade 1: -40°C to +125°C.
- ESD protection exceeds 2000 V per MIL-STD-883, method 3015, and 200 V using the machine model.
- Rail-to-rail signal handling and high degree of linearity.
- High speed, typically 0.5 ns (VCC = 3 V, CL = 50 pF).
- Low ON-state resistance, typically around 6 Ω (VCC = 4.5 V).
- Latch-up performance exceeds 100 mA per JESD 78, Class II.
- Specified break-before-make switching.
Applications
- Advanced driver assistance systems (ADAS).
- Analog audio routing.
- Power-up monitoring.
- Memory sharing.
- Signal gating, chopping, modulation, or demodulation (modem).
- Signal multiplexing for analog-to-digital and digital-to-analog conversion systems.
Q & A
- What is the operating voltage range of the SN74LVC1G3157-Q1? The device operates within a VCC range of 1.65 V to 5.5 V.
- What is the typical ON-state resistance of the SN74LVC1G3157-Q1? The typical ON-state resistance is around 6 Ω at VCC = 4.5 V.
- Is the SN74LVC1G3157-Q1 qualified for automotive applications? Yes, it is AEC-Q100 qualified for automotive applications.
- What is the operating temperature range of the SN74LVC1G3157-Q1? The device operates from -40°C to +125°C.
- What kind of ESD protection does the SN74LVC1G3157-Q1 offer? The device offers ESD protection exceeding 2000 V per MIL-STD-883, method 3015, and 200 V using the machine model.
- What are the typical propagation delay times for the SN74LVC1G3157-Q1? The propagation delay time is typically 0.5 ns at VCC = 3 V and CL = 50 pF.
- What are the common applications of the SN74LVC1G3157-Q1? Common applications include ADAS, analog audio routing, power-up monitoring, memory sharing, and signal multiplexing.
- What package types are available for the SN74LVC1G3157-Q1? The device is available in SOT-23 (DBV) and SC70 (DCK) packages.
- How does the SN74LVC1G3157-Q1 handle rail-to-rail signals? The device can handle rail-to-rail signal switching, allowing signals with amplitudes of up to VCC (peak) to be transmitted in either direction.
- What is the latch-up performance of the SN74LVC1G3157-Q1? The latch-up performance exceeds 100 mA per JESD 78, Class II.
