MCP621 datasheet(18/68 Pages) MICROCHIP

18 / 68 page

MCP621/1S/2/3/4/5/9

DS20002188E-page 18

 2009-2021 Microchip Technology Inc. and its subsidiaries

Note: Unless otherwise indicated, TA =+25°C, VDD = +2.5V to 5.5V, VSS = GND, VCM =VDD/3, VOUT =VDD/2,

VL =VDD/2, RL =2kto VL, CL = 50 pF, and CAL/CS =VSS.

2.6

Calibration and Chip Select Response

FIGURE 2-44:

CAL/CS Current vs. Power

Supply Voltage.

FIGURE 2-45:

CAL/CS Voltage, Output

Voltage and Supply Current (for Side A) vs. Time

with VDD =2.5V.

FIGURE 2-46:

CAL/CS Voltage, Output

Voltage and Supply Current (for Side A) vs. Time

with VDD =5.5V.

FIGURE 2-47:

CAL/CS Hysteresis vs.

Ambient Temperature.

FIGURE 2-48:

CAL/CS Turn-On Time vs.

Ambient Temperature.

FIGURE 2-49:

CAL/CS’s Pull-Down

Resistor (RPD) vs. Ambient Temperature.

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

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)

CAL/CS = VDD

-1

Time (ms)

-12

-10

-8

-6

-4

-2

VDD = 2.5V

G = 1

VL = 0V

Op Amp

turns on

CAL/CS

Op Amp

turns off

Calibration

starts

IDD

VOUT

-2

Time (ms)

-12

-10

-8

-6

-4

-2

VDD = 5.5V

G = 1

VL = 0V

Op Amp

turns on

CAL/CS

Op Amp

turns off

Calibration

starts

IDD

VOUT

0.00

0.05

0.10

0.15

0.20

0.25

0.30

0.35

0.40

-50

-25

255075

100

125

Ambient Temperature (°C)

VDD = 2.5V

VDD = 5.5V

-50

-25

100

125

Ambient Temperature (°C)

-50

-25

255075

100

125

Ambient Temperature (°C)

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