DC1591A

LTC6409

7

6409fa

Frequency Response vs Closed 

Loop Gain

Frequency Response vs Load 

Capacitance

Gain 0.1dB Flatness

Typical perForMance characTerisTics

Harmonic Distortion vs Frequency

Harmonic Distortion vs Output 

Common Mode Voltage

Harmonic Distortion vs Input 

Amplitude

FREQUENCY (MHz)

6409 G19

DISTOR

TION (dBc)

V

S

 = 5V

V

OCM

 = V

ICM

 = 1.25V

R

LOAD

 = 400Ω

R

I

 = R

F

 = 150Ω

V

OUTDIFF

 = 2V

P-P

DIFFERENTIAL INPUTS

–50

–60

–70

–80

–90

–120

–110

–100

 1

 1000

 100

10

HD2

HD3

OUTPUT COMMON MODE VOLTAGE (V)

6409 G20

DISTOR

TION (dBc)

–30

–40

–50

–60

–70

–80

–90

–110

–100

 0.5

3.5

3

2.5

2

1.5

1

V

S

 = 5V

f

IN

 = 100MHz

R

LOAD

 = 400Ω

R

I

 = R

F

 = 150Ω

V

OUTDIFF

 = 2V

P-P

DIFFERENTIAL INPUTS

HD2

HD3

INPUT AMPLITUDE (dBm)

6409 G21

DISTOR

TION (dBc)

–80

–90

–120

–110

–100

–4

(0.4V

P-P

)

–2

10

(2V

P-P

)

8

6

4

2

0

V

S

 = 5V

V

OCM

 = V

ICM

 = 1.25V

f

IN

 = 100MHz

R

LOAD

 = 400Ω

R

I

 = R

F

 = 150Ω

DIFFERENTIAL INPUTS

HD2

HD3

1

 100

10

1000

10000

FREQUENCY (MHz)

6409 G15

GAIN (dB)

V

S

 = 5V

V

OCM

 = V

ICM

 = 1.25V

R

LOAD

 = 400Ω

60

50

40

30

20

10

0

–30

–20

–10

A

V

 = 1

A

V

 = 2

A

V

 = 5

A

V

 = 10

A

V

 = 20

A

V

 = 100

A

V

 = 400

A

V

 (V/V)

C

F

 (pF)

R

I

 (Ω) R

F

 (Ω)

1
2
5

10
20

100
400

150
100

50
50
25
25
25

150
200
250
500
500

2.5k

10k

1.3

1

0.8
0.4
0.4

0
0

10

 1000

100

10000

FREQUENCY (MHz)

6409 G16

GAIN (dB)

20

10

0

–30

–20

–10 V

S

 = 5V

V

OCM

 = V

ICM

 = 1.25V

R

LOAD

 = 400Ω

R

I

 = R

F

 = 150Ω, C

F

 = 1.3pF

CAPACITOR VALUES ARE FROM

EACH OUTPUT TO GROUND.

NO SERIES RESISTORS ARE USED.

C

L

 = 0pF

C

L

 = 0.5pF

C

L

 = 1pF

C

L

 = 1.5pF

C

L

 = 2pF

1

 100

10

1000

10000

FREQUENCY (MHz)

6409 G17

GAIN (dB)

0.5

0.1

0.2

0.3

0.4

0

–0.5

–0.4

–0.3

–0.2

–0.1

V

S

 = 5V

V

OCM

 = V

ICM

 = 1.25V

R

LOAD

 = 400Ω

R

I

 = R

F

 = 150Ω, C

F

 = 1.3pF

Slew Rate vs Temperature

–50

50

125

100

–25

0

25

75

TEMPERATURE (°C)

6409 G08

SLEW RA

TE (V

/µs)

V

S

 = 5V

3400

3200

3225

3250

3275

3300

3325

3350

3375

DC1591A Datasheet Related Products:
DC1591A Information:
Part No.
DC1591A
Description
DEMO BRD FOR LTC6409 ADC
File Size
449356 bytes
Page Size
612 x 792 pts (letter)
All Pages
24
Manufacturer
Linear Technology
Homepage
http://www.linear.com/
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