LTC6605-7

1

66057f

TYPICAL APPLICATION

FEATURES

APPLICATIONS

DESCRIPTION

Dual Matched 7MHz Filter

with Low Noise, Low Distortion

Differential Amplifier

tial amplifiers configured as matched 2nd order lowpass

6.5MHz to 10MHz.

The internal op amps are fully differential, feature very

low noise and distortion, and are compatible with 16-bit

dynamic range systems. The inputs can accept single-

ended or differential signals. An input pin is provided

for each amplifier to set the common mode level of the

differential outputs.

Internal laser-trimmed resistors and capacitors determine

a precise, very well matched (in gain and phase) 7MHz

2nd order filter response. A single optional external re-

sistor per channel can tailor the frequency response for

each amplifier.

Three-state BIAS pins determine each amplifier’s power

consumption, allowing a choice between shutdown, me-

dium power or full power.

The LTC6605-7 is available in a compact 6mm × 3mm

22-pin leadless DFN package and operates over a –40°C

to 85°C temperature range.

Dual, Matched 6.5MHz Lowpass Filter

Differential Amplifiers

Gain Match: ±0.35dB Max, Passband

Phase Match: ±1.2° Max, Passband

Single-Ended or Differential Inputs

16.2mA/33.1mA)

Adjustable Output Common Mode Voltage Control

Buffered, Low Impedance Outputs

, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

Channel to Channel Phase Matching

66057 TA01

LTC6605-7

3V

0.1μF

0.1μF

0.1μF

0.1μF

–

+

21

19

17

+

–

22

18

3V

–

+

15

14

13

16

12

2

3

4

6

+

–

1

5

8

9

10

7

11

20

3V

+

–

3V

+

–

PHASE MATCH (DEG)

–1.2

0

20

120

60

–0.8

0

0.4

0.8

1.2

66057 TA01b

80

100

40

–0.4

292 TYPICAL UNITS