LT1881(RevA) データシートの表示（PDF） - Linear Technology

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LT1881
(Rev.:RevA)

Dual and Quad Rail-to-Rail Output, Picoamp Input Precision Op Amps

Linear Technology 

LT1881/LT1882

TYPICAL PERFOR A CE CHARACTERISTICS

Common Mode Rejection Ratio vs

Frequency

120

100

80

60

40

20

0

0.1 1 10 100 1k 10k 100k 1M

FREQUENCY (Hz)

1881/2 G36

LT1881 Noise Current Density vs

Frequency

180

160

VS = ±15V

140

120

100

80

60

40

20

0

1

10

100

1000

FREQUENCY (Hz)

1881/2 G39

LT1881 Series Output Resistance

vs Capacitive Load

120

AV = 1

100 TA = 25°C

VS = ±2.5V

80

VS = ±15V

60

40

20

0

0 2000 4000 6000 8000 10000

CAPACITIVE LOAD (pF)

1881/2 G42

LT1881 0.1Hz to 10Hz Noise

0

5 10 15 20 25 30

1s/DIV

1881/2 G37

LT1881A Total Noise vs Source

Resistance

1000

100

10

1

1 10 100 1k 10k 100k 1M

RS (Ω)

1881/2 G36

LT1881 Undistorted Output Swing

vs Frequency

35

30

25

AV = –1

TA = 25°C

VS = ±15V

20

15

10

AV = –1

TA = 25°C

VS = ±2.5V

5

0

1

10

100

FREQUENCY (kHz)

1881/2 G43

LT1881 Noise Voltage vs

Frequency

50

45

VS = ±5V

AV = 1

40

35

30

25

20

15

10

5

0

1

10

100

1k

FREQUENCY (Hz)

1881/2 G38

LT1881 Overshoot vs Capacitive

Load

30

VS = ±15V

25 RL = 10k

20

AV = 1

15

AV = –1

10

5

0

10

100

1k

10k

CAPACITIVE LOAD (pF)

1881/2 G41

LT1881 THD + Noise vs Frequency

10

VS = ±15V

VIN = 2VP-P

1

0.1

0.01

0.001

0.0001

10

AV = –1

AV = 1

100

1k

10k

FREQUENCY (Hz)

100k

1881/2 G44

18812fa

11

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