Texas Instruments TX810 Programmable Transmit/Receive Switch
Texas Instruments TX810 Programmable Transmit/Receive Switch provides an integrated solution for various ultrasound applications. It is an 8-channel, current programmable transmit/receive switch in a small 6mm×6mm package. When high-voltage transmitter signals are applied to the input, the internal diodes limit the output voltage. At the same time, the insertion loss of TX810 is minimized during the receive mode.
Unlike conventional T/R switches, the Texas Instruments TX810 contains a 3-bit interface used to program bias current from 7mA to 0mA for different performance and power requirements. When the TX810 bias current is set as 0mA (i.e., high-impedance mode), the device is configured as a power-down mode. In the high-impedance mode, TX810 does not add additional load to high-voltage transmitters. Also, the device can wake up from power-down mode in less than 1µs. With these advanced programmability features, significant power saving can be achieved in systems.
Features
- Compact T/R switch for ultrasound
- Flexible programmability
- Eight bias current settings
- Eight power/performance combinations
- Easy power-up/down control
- Fast wake-up time
- Dual supply operation
- Optimized insertion loss
Applications
- Medical ultrasound
- Industrial ultrasound
Block Diagram
Publié le: 2019-11-08
| Mis à jour le: 2024-01-23