Overview
The STG3157CTR is a high-speed CMOS analog SPDT (single-pole double-throw) switch or 2:1 multiplexer/demultiplexer bus switch manufactured by STMicroelectronics. It is designed using silicon gate CMOS technology, making it ideal for applications requiring fast switching speeds and low power consumption. The device operates from a supply voltage range of 1.65 V to 5.5 V, which is particularly beneficial for portable and battery-powered devices.
Key Specifications
| No of Channels | 1 |
|---|---|
| Circuitry | SPDT |
| Supply Current | 1 µA (max) at TA = 85 °C |
| ON Resistance | 7 Ω (max) at VCC = 4.5 V, 9 Ω (max) at VCC = 3.0 V |
| Supply Voltage | 1.65 V to 5.5 V single supply |
| Package Style | SOT-323-6L |
| Mounting Method | Surface Mount |
| Propagation Delay | 0.3 ns (max) at VCC = 4.5 V, 0.8 ns (max) at VCC = 3.0 V, 1.2 ns (max) at VCC = 2.3 V |
| Operating Temperature | -55 °C to 125 °C |
| Latch-up Performance | Exceeds 150 mA (JESD 17) |
Key Features
- High Speed: Fast switching speeds with propagation delays of 0.3 ns (max) at VCC = 4.5 V, 0.8 ns (max) at VCC = 3.0 V, and 1.2 ns (max) at VCC = 2.3 V.
- Ultra Low Power Dissipation: Quiescent supply current of 1 µA (max) at TA = 85 °C.
- Low ON Resistance: ON resistance of 7 Ω (max) at VCC = 4.5 V and 9 Ω (max) at VCC = 3.0 V.
- Wide Operating Voltage Range: Operates from a single supply voltage of 1.65 V to 5.5 V.
- TTL Threshold ON Control Input: Compatible with TTL threshold at VCC = 2.7 to 3.6 V.
- Pin and Function Compatibility: Compatible with 74 series 3157.
- Break-Before-Make Feature: Ensures reliable signal routing with minimal crosstalk.
- ESD Protection: All inputs and outputs are equipped with protection circuits against static discharge.
Applications
The STG3157CTR is suitable for various applications where reliable signal routing and low power consumption are critical, such as:
- Battery-Powered Devices: Ideal for portable electronics due to its low power consumption and wide supply voltage range.
- Portable Electronics: Used in devices requiring fast switching speeds and low signal loss.
- Automotive Systems: Suitable for automotive applications due to its robust performance and wide operating temperature range.
- Industrial Control Systems: Used in industrial automation for reliable signal routing and switching.
Q & A
- What is the STG3157CTR?
The STG3157CTR is a high-speed CMOS analog SPDT switch or 2:1 multiplexer/demultiplexer bus switch manufactured by STMicroelectronics.
- How does the STG3157CTR work?
The STG3157CTR works by allowing or blocking the flow of analog signals using a control voltage. When the control voltage is applied, the switch connects the input terminal to the output terminal, allowing the signal to pass through.
- What is the package style of the STG3157CTR?
The STG3157CTR comes in an SOT-323-6L package, which is designed for surface-mount technology.
- What is the operating voltage range of the STG3157CTR?
The STG3157CTR operates from a single supply voltage of 1.65 V to 5.5 V.
- What are the key features of the STG3157CTR?
The key features include high-speed switching, ultra-low power dissipation, low ON resistance, wide operating voltage range, and break-before-make feature.
- What are the typical applications of the STG3157CTR?
The STG3157CTR is used in battery-powered devices, portable electronics, automotive systems, and industrial control systems.
- Does the STG3157CTR have ESD protection?
- What is the propagation delay of the STG3157CTR?
The propagation delay is 0.3 ns (max) at VCC = 4.5 V, 0.8 ns (max) at VCC = 3.0 V, and 1.2 ns (max) at VCC = 2.3 V.
- Is the STG3157CTR compatible with other devices?
- What is the latch-up performance of the STG3157CTR?
The latch-up performance exceeds 150 mA (JESD 17).
