AD604_08 datasheet(4/32 Pages) AD

部品番号	AD604

部品情報	Dual, Ultralow Noise Variable Gain Amplifier

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AD604

Rev. D | Page 4 of 32

Parameter

Conditions

Min

Typ

Max

Unit

ACCURACY

Absolute Gain Error

0 dB to 3 dB

0.25 V < VGN < 0.400 V

−1.2

+0.75

+3

dB

3 dB to 43 dB

0.400 V < VGN < 2.400 V

−1.0

±0.3

+1.0

dB

43 dB to 48 dB

2.400 V < VGN < 2.65 V

−3.5

−1.25

+1.2

dB

Gain Scaling Error

0.400 V < VGN < 2.400 V

±0.25

dB/V

Output Offset Voltage

VREF = 2.500 V, VOCM = 2.500 V

−50

±30

+50

mV

Output Offset Variation

VREF = 2.500 V, VOCM = 2.500 V

30

50

mV

GAIN CONTROL INTERFACE

Gain Scaling Factor

VREF = 2.5 V, 0.4 V < VGN < 2.4 V

19

20

21

dB/V

VREF = 1.67 V

30

dB/V

Gain Range

Preamplifier gain = 14 dB

0 to 48

dB

Preamplifier gain = 20 dB

6 to 54

dB

Input Voltage (VGN) Range

20 dB/V, VREF = 2.5 V

0.1 to 2.9

V

Input Bias Current

−0.4

μA

Input Resistance

2

MΩ

Response Time

48 dB gain change

0.2

μs

VREF Input Resistance

10

kΩ

POWER SUPPLY

Specified Operating Range

One complete channel

±5

V

One DSX only

5

V

Power Dissipation

One complete channel

220

mW

One DSX only

95

mW

Quiescent Supply Current

VPOS, one complete channel

32

36

mA

VPOS, one DSX only

19

23

mA

VNEG, one preamplifier only

−15

−12

mA

Powered Down

VPOS, VGN < 50 mV, one channel

1.9

3.0

mA

VNEG, VGN < 50 mV, one channel

−150

μA

Power-Up Response Time

48 dB gain change, VOUT = 2 V p-p

0.6

μs

Power-Down Response Time

0.4

μs

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