VCA810

SBOS275C − JUNE 2003 − REVISED OCTOBER 2004

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8

RL = 500Ω and VIN = single-ended input on V+ with V− at ground, unless otherwise noted.

10000

1000

100

10

1

NOISE DENSITY vs CONTROL VOLTAGE

Control Voltage (V)

0

−0.2 −0.4 −0.6 −0.8 −1.0 −1.2 −1.4 −1.6 −1.8 −2.0

Input−Referred Voltage Noise Density

Output−Referred Voltage Noise Density

R

on Each Input

10

1

INPUT VOLTAGE AND CURRENT NOISE

Frequency (Hz)

100

1k

10k

100k

1M

10M

Current Noise (1.8pA/

√Hz)

Each Input

Differential Input

Voltage Noise (2.4nV/

√Hz)

0

−20

−40

−60

−80

−100

−120

FULLY ATTENUATED ISOLATION

vs FREQUENCY

Frequency (Hz)

1M

10M

100M

V

V

50

40

30

20

10

0

−10

−20

−30

−40

−50

OUTPUT OFFSET VOLTAGE

TOTAL ERROR BAND vs GAIN

Gain (dB)

−40

−30

−20

−10

0

10

20

30

40

Maximum Error Band

Typical Devices

0.4

0.3

0.2

0.1

0

−0.1

−0.2

−0.3

−0.4

−0.5

TYPICAL GAIN ERROR PLOT

Control Voltage (V)

0

−0.5

−1

−1.5

−2

Deviation from

−40dB/V Gain Slope

250

200

150

100

50

0

OUTPUT OFFSET VOLTAGE DISTRIBUTION

Total Tested = 1462

G = +40dB

Output Offset Voltage (mV)