1FEATURES
2• Compact T/R Switch for Ultrasound
• Flexible Programmability
– 8 Bias Current Settings
– 8 Power/Performance Combinations
– Easy Power-Up/Down control
• Fast Wake Up Time
• Dual Supply Operation
• Optimized Insertion Loss

APPLICATIONS
• Medical Ultrasound
• Industrial Ultrasound

DESCRIPTION
The TX810 provides an integrated solution for a wide
range of ultrasound applications. It is an 8 channel,
current programmable, transmit/receive switch in a
small 6mm × 6mm package.
The internal diodes limit the output voltage when high
voltage transmitter signals are applied to the input.
While the insertion loss of TX810 is minimized during
receive mode.
Unlike conventional T/R switches, the 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 power-down mode. In the
high-impedance mode, TX810 does not add
additional load to high-voltage transmitters. In
addition, 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.