VN

VP

HV TX

LVRX

1 Channel

of TX810

TX810

www.ti.com

SLLS996A – SEPTEMBER 2009 – REVISED APRIL 2010

8-Channel, Programmable T/R Switch for Ultrasound

Check for Samples: TX810

1

FEATURES

DESCRIPTION

2

•

Compact T/R Switch for Ultrasound

The TX810 provides an integrated solution for a wide

range of ultrasound applications. It is an 8 channel,

•

Flexible Programmability

current programmable, transmit/receive switch in a

–

8 Bias Current Settings

small 6mm × 6mm package.

–

8 Power/Performance Combinations

The internal diodes limit the output voltage when high

–

Easy Power-Up/Down control

voltage transmitter signals are applied to the input.

•

Fast Wake Up Time

While the insertion loss of TX810 is minimized during

receive mode.

•

Dual Supply Operation

•

Optimized Insertion Loss

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

APPLICATIONS

requirements. When the TX810 bias current is set as

•

Medical Ultrasound

0mA (i.e., high-impedance mode), the device is

•

Industrial Ultrasound

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.

Figure 1. Block Diagram of TX810

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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

PowerPAD is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Copyright © 2009–2010, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.