Overview
Description
The QS3VH245 HotSwitch 8-bit bus switch is a high bandwidth bus switch with very low ON-resistance, resulting in under 250ps propagation delay through the switch. The switches can be turned ON under the control of the LVTTL-compatible Output Enable signal for bidirectional data flow with no added delay or ground bounce. The combination of near-zero propagation delay, high OFF impedance, and overvoltage tolerance makes the QS3VH245 ideal for high-performance communications applications. The QS3VH245 operates from -40 °C to +85 °C.
Features
- N-channel FET switches with no parasitic diode to VCC
- Isolation under power-off conditions
- No DC path to VCC or GND
- 5V tolerant in OFF and ON state
- 5V tolerant I/Os
- Low RON - 4Ω typical
- Flat RON characteristics over operating range
- Rail-to-rail switching 0V to 5V
- Bidirectional dataflow with near-zero delay: No added ground bounce
- Excellent RON matching between channels
- VCC operation: 2.3V to 3.6V
- High bandwidth - Up to 500MHz
- LVTTL-compatible control inputs
- Undershoot clamp diodes on all switch and control Inputs
- Low I/O capacitance, 4pF typical
- Available in 20-pin QSOP, SOIC, and TSSOP packages
Comparison
Applications
- Hot-swapping
- 10/100 Base-T, Ethernet LAN switch
- Low distortion analog switch
- Replaces mechanical relay
- ATM 25/155 switching
- Bus switching and isolation
Design & Development
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Processing table
| TSSOP | 20 | C | Yes | Tube | 1 | 0.5327 | Get Samples, | |
| TSSOP | 20 | C | Yes | Reel | 1 | 0.5148 | ||
| QSOP | 20 | C | Yes | Tube | 1 | 0.56 | Get Samples, | |
| QSOP | 20 | C | Yes | Reel | 1 | 1.09 |
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