TX810_14 datasheet(6/20 Pages) TI1

Part #	TX810

Description	8-Channel, Programmable T/R Switch for Ultrasound

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Manufacturer	TI1 [Texas Instruments]

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tEN_ON

tEN_OFF

tDELAY

INPUT

B3/B2/B1

OUTPUT

VN

VP

1 Channel

of TX810

Signal

Source

Test

Equipment

RIN

RLOAD

t − Time − s

m

1.5

0.5

-0.5

1

2.5

3

0.5

-0.5

1.5

2

-2

-1

0

1

-1.5

2

0

80

20

-20

-100

-60

0

40

-80

Bias = 7 mA

-40

60

100

Output

Input

Insertion Loss − dB

400

350

100

0

50

200

300

150

250

1890 Units,

Bias = 7 mA,

R

= N/A

IN

TX810

SLLS996A – SEPTEMBER 2009 – REVISED APRIL 2010

www.ti.com

Figure 2. Timing Diagram

TYPICAL CHARACTERISTICS

All Specifications at TA = 25°C, VP = 5V, VN = -5V, VB = 0V, VSUB = -5V, RIN = 75Ω, RLOAD = 400Ω;

f = 5MHz, B3B2B1=111, VIN = 0.25VPP, unless otherwise noted.

A typical bench setup is shown in Figure 3.

Figure 3. Typical Test Setup

AC coupling is used between High voltage pulser and TX810. The

input signal is a combination of 0.25Vpp signal followed by a 1-cycle

140Vpp pulse

Figure 4. Insertion Loss Distribution

Figure 5. Recovery Time With Small Input Signal

6

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