AD8421 datasheet(9/28 Pages) AD

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LT6372-1

Rev. 0

For more information www.analog.com

TYPICAL PERFORMANCE CHARACTERISTICS

Current Noise Density vs

Frequency

0.1Hz to 10Hz Voltage Noise,

G = 1, RTI

0.1Hz to 10Hz Voltage Noise,

G = 10, RTI

0.1Hz to 10Hz Voltage Noise,

G = 100, RTI

0.1Hz to 10Hz Voltage Noise,

G = 1000, RTI

0.1Hz to 10Hz Noise Current,

Unbalanced Source R

0.1Hz to 10Hz Noise Current,

Balanced Source R

VS = ±15V

TA = 25°C

G = 10

TIME (1s/DIV)

6372-1 G32

UNBALANCED SOURCE R

VS = ±15V

TA = 25°C

TIME (1s/DIV)

6372-1 G35

UNBALANCED SOURCE R

BALANCED SOURCE R

FREQUENCY (Hz)

0.1

100

10k

100k

100

1000

6372-1 G30

VS = ±15V

TA = 25°C

G = 100

TIME (1s/DIV)

6372-1 G33

BALANCED SOURCE R

VS = ±15V

TA = 25°C

TIME (1s/DIV)

6372-1 G36

VS = ±15V

TA = 25°C

G = 1

TIME (1s/DIV)

6372-1 G31

VS = ±15V

TA = 25°C

G = 1000

TIME (1s/DIV)

6372-1 G34

TA = 25°C, VS = ±15V, VCM = VREF1 = VREF2 = 0V, VCLLO = V–, VCLHI = V+, RL = 2k, unless otherwise noted.

Input-Referred Voltage Noise

Density vs Frequency

BW LIMIT

G = 1000

1/fCORNER = 1Hz

1/fCORNER = 2Hz

1/fCORNER = 3Hz

FREQUENCY (Hz)

0.1

100

10k

100k

100

400

6372-1 G29

G = 1

G = 10

G = 100, 1000

VS = ±15V

G = 1

G = 10

G = 100

G = 1000

FREQUENCY (Hz)

100

10k

100k

100

120

140

160

Ratio vs Frequency

Negative Power Supply Rejection

6372-1 G28

Negative Power Supply Rejection

Ratio vs Frequency

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