OPA688M datasheet(10/23 Pages) TI1

10 / 23 page

OPA688M

UNITY GAINSTABLE WIDEBAND

VOLTAGE LIMITING AMPLIFIER

SGLS144B − APRIL 2003 − DECEMBER 2006

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

TYPICAL CHARACTERISTICS

Figure 19

100

0.1

CLOSED−LOOP OUTPUT IMPEDANCE

Frequency (Hz)

10M

100M

G = +1

R F = 25 Ω

V O = 0.2Vp−p

Figure 20

10 0

−2 5

−5 0

−7 5

−1 0 0

L IM IT E R IN P UT B IA S CU RRE NT v s B IA S V O L T A GE

Li m i t e r H ea d r oo m

( V )

0. 0

0 . 5

1 . 0

1 . 5

2. 0

2 . 5

3. 0

3 . 5

4 . 0

4 . 5

5 . 0

Ma x imu m O v e r T e mp e ra tu re

M inim u m O v e r T em p e ra tu re

Lim it er H ead ro om = + V

S −V H

Cu r re n t = I

VH or

− I

=V L −(− V S)

Figure 21

SUPPLY AND OUTPUT CURRENTS vs TEMPERATURE

Ambient Temperature (

− 50

− 25

100

Output Current, Sourcing

Supply Current

| Output Current, Sinking

Figure 22

100

PSR AND CMR vs TEMPERATURE

Ambient Temperature (

− 50

− 25

100

PSR−

PSRR

PSR+

CMRR

Figure 23

5.0

4.5

4.0

3.5

3.0

VOLTAGE RANGES vs TEMPERATURE

Ambient Temperature ( C)

−50

−25

100

Output Voltage Range

V H = − V L = 4.3V

Common−Mode Input Range

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