OUT B

1

2

3

4

5

6

7

8

OUT A

-IN A

+IN A

V

-

V

+

-IN B

+IN B

-

+

+

-

A

B

OUTPUT

V

-

+IN

V

+

-IN

+

-

1

2

3

5

4

LMH6642Q-Q1, LMH6643Q-Q1

www.ti.com

SNOSC61C – JANUARY 2012 – REVISED SEPTEMBER 2014

5 Description (continued)

Careful attention has been paid to ensure device stability under all operating voltages and modes. The result is a

very well behaved frequency response characteristic (0.1dB gain flatness up the 12MHz under 150

= +2) with minimal peaking (typically 2dB maximum) for any gain setting and under both heavy and light loads.

This along with fast settling time (68ns) and low distortion allows the device to operate well in ADC buffer, and

high frequency filter applications as well as other applications.

This device family offers professional quality video performance with low DG (0.01%) and DP (0.01°)

characteristics. Differential Gain and Differential Phase characteristics are also well maintained under heavy

loads (150

Ω) and throughout the output voltage range. The LMH664X family is offered in single (LMH6642) and

dual (LMH6643).

6 Pin Configuration and Functions

5-Pin SOT-23 Package

8-Pin VSSOP Package

Package DBV0005A

Package DGK0008A

Top View

Top View

Pin Functions

PIN

NUMBER

I/O

DESCRIPTION

NAME

LMH6642Q

LMH6643Q

-IN

4

I

Inverting Input

+IN

3

I

Non-inverting Input

-IN A

2

I

ChA Inverting Input

+IN A

3

I

ChA Non-inverting Input

-IN B

6

I

ChB Inverting Input

+IN B

5

I

ChB Non-inverting Input

OUT A

1

O

ChA Output

OUT B

7

O

ChB Output

OUTPUT

1

O

Output

2

4

I

Negative Supply

5

8

I

Positive Supply

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Product Folder Links: LMH6642Q-Q1 LMH6643Q-Q1