OPA688MJD datasheet(7/24 Pages) TI2

7 / 24 page

OPA688M

UNITY GAINSTABLE WIDEBAND

VOLTAGE LIMITING AMPLIFIER

SGLS144B − APRIL 2003 − DECEMBER 2006

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

TYPICAL CHARACTERISTICS

Figure 1

−3

−6

−9

−12

−15

−18

FREQUENCY RESPONSE

Frequency (Hz)

10M

100M

V O = 0.2Vp−p

G = +1, R C = ∞ , R F = 25 Ω

G = +1, R C = 175 Ω , R F = 25 Ω

G = +2, R C = ∞

150

Ω

G = +5, R C = ∞

Figure 2

−3

−6

−9

−12

−15

−18

−21

−24

FREQUENCY RESPONSE

Frequency (Hz)

10M

100M

V O = 0.2Vp−p

G = −2

G = − 5

G = − 1

Figure 3

SMALL−SIGNAL PULSE RESPONSE

Time (5ns/div)

V O = 0.2Vp−p

0.25

0.20

0.15

0.10

0.05

− 0.05

− 0.10

− 0.15

− 0.20

− 0.25

Figure 4

LARGE−SIGNAL PULSE RESPONSE

Time (5ns/div)

V O = 4Vp−p

V H =− V L = 2.5V

2.5

2.0

1.5

1.0

0.5

− 0.5

− 1.0

− 1.5

− 2.0

− 2.5

Figure 5

V H − LIMITED PULSE RESPONSE

V O

2.5

2.0

1.5

1.0

0.5

− 0.5

− 1.0

− 1.5

− 2.0

− 2.5

Time (20ns/div)

VIN

G= +2

V H = +2V

Figure 6

V L Ñ LIMITED PULSE RESPONSE

2.5

2.0

1.5

1.0

0.5

− 0.5

− 1.0

− 1.5

− 2.0

− 2.5

Time (20ns/div)

V O

V IN

G = +2

V L = −2 V

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