MCP6234T datasheet(6/40 Pages) MICROCHIP

Part #	MCP6234T

Description	20 關A, 300 kHz Rail-to-Rail Op Amp

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Manufacturer	MICROCHIP [Microchip Technology]

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MCP6231/1R/1U/2/4

DS21881E-page 6

Note: Unless otherwise indicated, T

A = +25°C, VDD = +1.8V to +5.5V, VSS = GND, VCM = VDD/2, VOUT ≈ VDD/2,

RL = 100 kΩ to VDD/2 and CL = 60 pF.

FIGURE 2-7:

Input Noise Voltage Density

vs. Frequency.

FIGURE 2-8:

Input Offset Voltage vs.

Common Mode Input Voltage at VDD = 1.8V.

FIGURE 2-9:

Input Offset Voltage vs.

Common Mode Input Voltage at VDD = 5.5V.

FIGURE 2-10:

Input Offset Voltage Drift.

FIGURE 2-11:

Input Offset Voltage vs.

Output Voltage.

FIGURE 2-12:

Output Short-Circuit Current

vs. Ambient Temperature.

10

100

1,000

1.E-01 1.E+0

0

1.E+0

1

1.E+0

2

1.E+0

3

1.E+0

4

1.E+0

5

Frequency (Hz)

0.1

100

1k

10k

100k

10

1

150

250

350

450

550

Common Mode Input Voltage (V)

VDD = 1.8V

TA = -40°C

TA = +25°C

TA = +85°C

TA = +125°C

-200

-150

-100

-50

0

50

100

150

200

Common Mode Input Voltage (V)

VDD = 5.5 V

TA = +125°C

TA = +85°C

TA = +25°C

TA = -40°C

0%

2%

4%

6%

8%

10%

12%

14%

16%

18%

20%

Input Offset Voltage Drift (µV/°C)

628 Samples

VCM = VSS

TA = -40°C to +125°C

-300

-250

-200

-150

-100

-50

0

50

100

0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5

Output Voltage (V)

VDD = 1.8V

VCM = VSS

VDD = 5.5V

-30

-25

-20

-15

-10

-5

0

5

10

15

20

25

30

0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5

Power Supply Voltage (V)

TA = +125°C

TA = +85°C

TA = +25°C

TA = -40°C

+ISC

-ISC

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