LT6350 데이터 시트보기 (PDF) - Linear Technology

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LT6350

Low Noise Single-Ended to Differential Converter/ADC Driver

Linear Technology 

LT6350

TYPICAL PERFORMANCE CHARACTERISTICS

TA = 25°C, V+ = 5V, V– = 0V, V+IN1 = V2 = Mid-Supply, VSHDN = V+, RF = SHORT, RG = OPEN, RL = OPEN. See Figure 1.

Harmonic Distortion vs Frequency

–50 V+ = 5V, V– = 0V, VOUTCM = 2.5V

–60 RL = 2k

– 70

–80 VOUTDIFF = 8VP-P

–90

HD3

– 100

VOUTDIFF = 4VP-P

HD2

– 110

–120

1k

10k

100k

FREQUENCY (Hz)

1M

6350 G47

Harmonic Distortion

vs Output Amplitude

–60

fIN = 100kHz

RL = 2k

–70

V+ = 5V, V– = 0V, VOUTCM = 2.5V

–80

–90

HD3

–100

–110

4

HD2

V+ = 5V, V– = –2V, VOUTCM = 2V

5

6

7

VOUTDIFF (VP-P)

8

6350 G45

Harmonic Distortion

vs Output Amplitude

– 40.0

– 50.0

fIN = 1MHz

RL = 2k

V+ = 5V, V– = 0V, VOUTCM = 2.5V

– 60.0

–70.0

HD3

– 80.0

HD2

– 90.0

–100.0

2

3

V+ = 5V, V– = –2V, VOUTCM = 2V

4

5

6

VOUTDIFF (VP-P)

7

8

6350 G46

PIN FUNCTIONS

–IN1 (Pin 1): Inverting Input. Normally used to take feed-

back from OUT1.

+IN2 (Pin 2): High Impedance Input. Normally used as a

reference input.

V+ (Pin 3): Positive Power Supply.

OUT1 (Pin 4): Noninverting Output. In phase with +IN1.

OUT2 (Pin 5): Inverting Output.

V– (Pin 6): Negative Power Supply. Can be ground.

SHDN (Pin 7): Shutdown. If tied high or left floating, the

part is enabled. If tied low, the part is disabled and draws

less than 70μA of supply current.

+IN1 (Pin 8): High Impedance Input. Normally used as

the single-ended input.

Exposed Pad (Pin 9, DD8 Package Only): Tie to V–

6350f

10

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