LT1793CS8 datasheet(6/12 Pages) LINER

Part #	LT1793CS8

Description	Low Noise, Picoampere Bias Current, JFET Input Op Amp

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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6

LT1793

CC

HARA TERISTICS

A

TYPICALPERFOR

CE

Small-Signal Transient Response

AV = 1

CL = 10pF

VS = ±15V, ±5V

1793 G10

1

µs/DIV

OUTPUT CURRENT (mA)

–10

V+ – 0.8

–1.0

–1.2

– 1.4

–1.6

2.0

1.8

1.6

1.4

1.2

V– +1.0

6

1793 G12

–8

–2

2

10

–6 –4

04

8

25

°C

–55

°C

125

°C

–55

°C

25

°C

125

°C

VS = ±5V TO ±20V

ISINK

ISOURCE

Output Voltage Swing

vs Load Current

Large-Signal Transient Response

5

µs/DIV

AV = 1

CL = 10pF

RL = 2k

VS = ±15V

1793 G11

THD and Noise Frequency for

Noninverting Gain

CAPACITIVE LOAD (pF)

0.1

30

AV = 10

AV = 1

40

50

1000

1793 G13

20

10

0

1

10

100

10000

VS = ±15V

TA = 25°C

RL ≥ 10k

VO = 100mVP-P

AV = 10

RF = 10k

CF = 20pF

Capacitive Load Handling

FREQUENCY (Hz)

20

100

0.0001

0.01

1

1k

20k

10k

1793 G15

0.001

0.1

ZL = 2k  15pF

VO = 20VP-P

AV = 1, 10, 100

MEASUREMENT BANDWIDTH

= 10Hz TO 80kHz

AV = 100

NOISE FLOOR

AV = 10

AV = 1

Warm-Up Drift

TIME AFTER POWER ON (MINUTES)

0

15

30

45

60

90

1

23

4

1793 G14

56

75

SO-8 PACKAGE

N8 PACKAGE

VS = ±15V

TA = 25°C

THD and Noise vs Output

Amplitude for Noninverting Gain

THD and Noise vs Frequency for

Inverting Gain

FREQUENCY (Hz)

20

100

0.0001

0.01

1

1k

20k

10k

1793 G16

0.001

0.1

ZL = 2k  15pF

VO = 20VP-P

AV = –1, –10, –100

MEASUREMENT BANDWIDTH

= 10Hz TO 80kHz

AV = –100

NOISE FLOOR

AV = –10

AV = –1

OUTPUT SWING (VP-P)

0.001

0.01

0.1

1

110

30

1793 G18

0.0001

0.3

ZL = 2k  15pF, fO = 1kHz

AV = 1, 10, 100

MEASUREMENT BANDWIDTH

= 10Hz TO 22kHz

AV = 100

AV = 10

AV = 1

THD and Noise vs Output

Amplitude for Inverting Gain

OUTPUT SWING (VP-P)

0.001

0.01

0.1

1

110

30

1793 G17

0.0001

0.3

ZL = 2k  15pF, fO = 1kHz

AV = –1, –10, –100

MEASUREMENT BANDWIDTH

= 10Hz TO 22kHz

AV = –100

AV = –10

AV = –1

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