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.