LT1881 查看數據表（PDF） - Linear Technology

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LT1881

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

Linear Technology 

TYPICAL PERFORMANCE CHARACTERISTICS

LT1881/LT1882

Total Harmonic Distortion + Noise

vs Output Voltage Amplitude

10

AV = –1

VS = ±2.5V

1

f = 1kHz

RF = RG = 10k

AV = –1

VS = ±15V

0.1

AV = 2

0.01

VS = ±2.5V

0.001

10m

AV = 2

VS = ±15V

0.1

1

10

100

OUTPUT VOLTAGE AMPLITUDE (VP-P)

18812 G45

Open-Loop Gain

RL = 2k RL = 10k

RL = 50k

18812 G46

OUTPUT VOLTAGE (5V/DIV)

Settling Time/Output Step 0.01%

Settling Time/Output Step 0.01%

GND

AV = 1

VS = ±15V

20μs/DIV

10V

0.5mV/DIV

18812 G47

GND

10V

0.5mV/DIV

AV = 1

VS = ±15V

50μs/DIV

18812 G48

Gain vs Temperature

6.0

VS = ±5V

5.0

0V TO 10V

0V TO –10V

4.0

3.0

RL = 10k

2.0

1.0 RL = 2k

0

–60 –40 –20 0 20 40 60 80 100 120 130

TEMPERATURE (°C)

18812 G49

Gain vs Load Resistance

10.0

+AVOL (0V TO 10V)

–AVOL (0V TO –10V)

1.0

0.1

0

VS = ±15V

5 10 15 20 25 30

LOAD RESISTANCE (kΩ)

18812 G50

18812fb

13

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