OPA3681 datasheet(7/20 Pages) TI1

Part #	OPA3681

Description	Dual, Wideband, Fixed Gain BUFFER AMPLIFIER With Disable

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Manufacturer	TI1 [Texas Instruments]

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7

®

OPA2682

TYPICAL PERFORMANCE CURVES: VS = ±5V

G = +2 and RL = 100Ω, unless otherwise noted (see Figure 1).

2

1

0

–1

–2

–3

–4

–5

–6

–7

–8

Frequency (50MHz/div)

0

500MHz

250MHz

SMALL-SIGNAL FREQUENCY RESPONSE

G = –1

G = +1

G = +2

8

7

6

5

4

3

2

1

0

–1

–2

Frequency (25MHz/div)

0

250MHz

125MHz

LARGE-SIGNAL FREQUENCY RESPONSE

2Vp-p

R

L = 100Ω

1Vp-p

4Vp-p

7Vp-p

400

300

200

100

0

–100

–200

–300

–400

SMALL-SIGNAL PULSE RESPONSE

Time (5ns/div)

V

O = 0.5Vp-p

+4

+3

+2

+1

0

–1

–2

–3

–4

LARGE-SIGNAL PULSE RESPONSE

Time (5ns/div)

V

O = 5Vp-p

CHANNEL-TO-CHANNEL CROSSTALK

0

–10

–20

–30

–40

–50

–60

–70

–80

–90

–100

Frequency (MHz)

1

10

100

2.0

1.6

1.2

0.8

0.4

0

LARGE-SIGNAL DISABLE/ENABLE RESPONSE

Time (50ns/div)

6.0

4.0

2.0

0

V

DIS

Output Voltage

V

IN = +1V

(SO-14 Only)

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