MCP6444 datasheet(6/42 Pages) MICROCHIP

Part #	MCP6444

Description	450 nA, 9 kHz Op Amp No Phase Reversal Analog Active Filters

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Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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MCP6441/2/4

DS22257B-page 6

Note: Unless otherwise indicated, T

A = +25°C, VDD = +1.4V to +6.0V, VSS = GND, VCM = VDD/2, VOUT ≈ VDD/2,

VL = VDD/2, RL = 1 MΩ to VL and CL = 60 pF.

FIGURE 2-7:

Input Noise Voltage Density

vs. Frequency.

FIGURE 2-8:

Input Noise Voltage Density

vs. Common Mode Input Voltage.

FIGURE 2-9:

CMRR, PSRR vs.

Frequency.

FIGURE 2-10:

CMRR, PSRR vs. Ambient

Temperature.

FIGURE 2-11:

Input Bias, Offset Current

vs. Ambient Temperature.

FIGURE 2-12:

Input Bias Current vs.

Common Mode Input Voltage.

100

1,000

0.1

1

10

100

1000

10000

Frequency (Hz)

0.1

1

10

100

1k

10k

0

50

100

150

200

250

300

350

Common Mode Input Voltage (V)

f = 1 kHz

VDD = 6.0 V

20

30

40

50

60

70

80

90

100

0.1

1

10

100

1000

Frequency (Hz)

CMRR

PSRR-

PSRR+

c

Representative Part

50

55

60

65

70

75

80

85

90

95

100

-50

-25

0

25

50

75

100

125

Ambient Temperature (°C)

PSRR (VDD = 1.4V to 6.0V, VCM = VSS)

CMRR (VDD = 6.0V, VCM = -0.3V to 6.3V)

CMRR (VDD = 1.4V, VCM = -0.3V to 1.7V)

1

10

100

1000

25

45

65

85

105

125

Ambient Temperature (°C)

Input Bias Current

VDD = 6.0V

Input Offset Current

1

10

100

1000

Common Mode Input Voltage (V)

VDD = 6.0V

TA = +125°C

TA = +85°C

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