MAX2077CTN+ datasheet(8/19 Pages) MAXIM

Part #	MAX2077CTN+

Description	Octal-Channel Ultrasound Front-End

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Manufacturer	MAXIM [Maxim Integrated Products]

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Octal-Channel Ultrasound Front-End

8

_______________________________________________________________________________________

Typical Operating Characteristics (continued)

(

Typical Application Circuits, VREF = 2.475V to 2.525V, VCC1 = 3.3V, VCC2 = 4.75V, TA = +25°C, VGND = 0V, NP = 0, PD = 0,

D3/D2/D1/D0 = 1/0/1/0 (RIN = 200Ω, LNA gain = 18.5dB), D5/D4 = 1/1(fC = 18MHz), fRF = 5MHz, RS = 200Ω, capacitance to GND

at each of the VGA differential outputs is 25pF, differential capacitance across VGA outputs is 15pF, RL = 1kΩ differential, reference

noise less than 10nV/

√Hz from 1kHz to 20MHz, DOUT loaded with 10MΩ and 60pF, unless otherwise noted.)

LARGE-SIGNAL BANDWIDTH vs. FREQUENCY

(GAIN = 20dB, VOUT = 1VP-P)

FREQUENCY (MHz)

10

-10

0

10

20

30

-20

1100

VOUT = 1VP-P

GAIN = 20dB

9MHz

10MHz

15MHz

18MHz

COMMON-MODE OUTPUT VOLTAGE

vs. GAIN

GAIN (dB)

35

26

17

1.6

1.7

1.8

1.9

1.5

844

DIFFERENTIAL OUTPUT IMPEDANCE

vs. FREQUENCY

MAX2077 toc18

FREQUENCY (MHz)

40

30

20

10

60

120

180

0

20

40

60

80

0

050

REAL

IMAGINARY

TWO-TONE ULTRASOUND-SPECIFIC IMD3

vs. FREQUENCY

FREQUENCY (MHz)

15

10

5

-60

-40

-20

0

-80

020

VOUT = 1VP-P

GAIN = 26dB

ADJACENT CHANNEL-TO-CHANNEL

CROSSTALK vs. GAIN

GAIN (dB)

35

26

17

-65

-60

-55

-50

-70

844

VOUT = 1VP-P

fRF = 10MHz

ADJACENT CHANNEL 1

ADJACENT CHANNEL 2

ADJACENT CHANNEL-TO-CHANNEL

CROSSTALK vs. FREQUENCY

FREQUENCY (MHz)

10

-30

-60

0

-90

100

1

VOUT = 1VP-P

GAIN = 20dB

ADJACENT CHANNEL 2

ADJACENT CHANNEL 1

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Manufacturer	Part #	Datasheet	Description
Maxim Integrated Produc...	MAX2077	1Mb / 19P	Octal-Channel Ultrasound Front-End 19-4696; Rev 2; 5/19

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