LOG114AIRGVR datasheet(7/30 Pages) BURR-BROWN

номер детали	LOG114AIRGVR

подробное описание детали	Single-Supply, High-Speed, Precision LOGARITHMIC AMPLIFIER

PDF	30 Pages

Scroll/Zoom	100%

производитель	BURR-BROWN [Burr-Brown (TI)]

домашняя страница	http://www.burr-brown.com

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7 / 30 page

LOG114

SBOS301A − MAY 2004 − REVISED MARCH 2007

www.ti.com

TYPICAL CHARACTERISTICS: VS = +5V

All specifications at TA = +25°C, RVLOGOUT = 10kΩ, VCM = GND, unless otherwise noted.

2.0

1.5

1.0

0.5

−0.5

−1.0

−1.5

−2.0

NORMALIZED TRANSFER FUNCTION

10−4

10−3

10−2

10−1

1101

102

103

104

Current Ratio (I

1/I2)

ONE CYCLE OF NORMALIZED TRANSFER FUNCTION

0.40

0.35

0.30

0.25

0.20

0.15

0.10

0.05

110

Current Ratio (I

1/I2)

−10

−20

1nA

10nA 100nA 1

µA10µA100µA 1mA 10mA

100pA

SCALING FACTOR ERROR (I

2 = reference 100pA to 10mA)

Input Current (I

+90

+80

+70

+25

−10_C

2.5

2.0

1.5

1.0

0.5

−0.5

−1.0

−1.5

−2.0

−2.5

1nA

10nA 100nA 1

µA10µA100µA 1mA 10mA

100pA

LOGOUT vs I1 INPUT (I2 =1µA)

Input Current (I

2.0

1.5

1.0

0.5

−0.5

−1.0

−1.5

−2.0

−2.5

1nA

10nA 100nA 1

µA10µA100µA1mA

100pA

LOGOUT vs I2 INPUT (I1 =1µA)

Input Current (I

10mA

−1

−2

−3

−4

1nA

10nA 100nA 1

µA10µA 100µA 1mA 10mA

100pA

LOGOUT vs IREF

REF (I2)

100pA

1nA

10nA

100nA

µA

100

µA

10mA

1mA

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