TLV2780CDBVT datasheet(11/32 Pages) TI

11 / 32 page

TLV2780, TLV2781, TLV2782, TLV2783, TLV2784, TLV2785, TLV278xA

FAMILY OF 1.8 V HIGHSPEED RAILTORAIL INPUT/OUTPUT

OPERATIONAL AMPLIFIERS WITH SHUTDOWN

SLOS245E − MARCH 2000 − REVISED JANUARY 2005

WWW.TI.COM

TYPICAL CHARACTERISTICS

Figure 18

100

1 k

10 k

PHASE MARGIN

LOAD CAPACITANCE

CL − Load Capacitance − pF

VDD = 2.7 V

RL = 2 kΩ

AV = 1

TA = 25°C

Rnull=50

Ω

Rnull=20

Ω

Rnull=0

Ω

Figure 19

100

120

140

100

1 k

10 k

100 k

EQUIVALENT INPUT NOISE VOLTAGE

FREQUENCY

f − Frequency − Hz

VDD = 2.7 V

VDD = 1.8 V

TA = 25°C

Figure 20

0.5

1.5

2.5

0.2 0.4 0.6 0.8

1 1.2 1.4 1.6 1.8

0.5

1.5

2.5

t − Time −

µs

VOLTAGE-FOLLOWER LARGE-SIGNAL PULSE RESPONSE

TIME

VDD = 2.7 V

RL = 2 kΩ

CL = 10 pF

AV = 1

TA = 25°C

Figure 21

t − Time −

µs

VOLTAGE-FOLLOWER SMALL-SIGNAL PULSE RESPONSE

TIME

VDD = 2.7 V

RL = 2 kΩ

CL = 10 pF

AV = 1

TA = 25°C

1.25

1.30

1.35

1.40

0.2

0.4

0.6

0.8

1.2

1.4

1.25

1.30

1.35

1.40

1.45

Figure 22

t − Time −

µs

INVERTING LARGE-SIGNAL PULSE RESPONSE

TIME

0.5

1.5

2.5

0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3 3.3

−1

−0.5

0.5

VDD = 2.7 V

RL = 2 kΩ

CL = 10 pF

AV = −1

TA = 25°C

Figure 23

t − Time −

µs

INVERTING SMALL-SIGNAL PULSE RESPONSE

TIME

1.25

1.30

1.35

1.40

0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3

−0.05

0.05

0.10

VDD = 2.7 V

RL = 2 kΩ

CL = 10 pF

AV = −1

TA = 25°C

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