MCP6021 datasheet(11/28 Pages) MICROCHIP

11 / 28 page

 2003 Microchip Technology Inc.

DS21685B-page 11

MCP6021/2/3/4

Note: Unless otherwise indicated, TA =+25°C, VDD = +2.5V to +5.5V, VSS = GND, VCM =VDD/2, RL =10kΩ to VDD/2,

VOUT ≈ VDD/2 and CL = 60 pF.

FIGURE 2-37:

VREF Accuracy vs. Supply

Voltage (MCP6021 and MCP6023 only).

FIGURE 2-38:

Chip Select (CS) Hysteresis

(MCP6023 only) with VDD = 2.5V.

FIGURE 2-39:

Chip Select (CS) to

Amplifier Output Response Time (MCP6023

only).

FIGURE 2-40:

VREF Accuracy vs.

Temperature (MCP6021 and MCP6023 only).

FIGURE 2-41:

Chip Select (CS) Hysteresis

(MCP6023 only) with VDD = 5.5V.

-50

-40

-30

-20

-10

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)

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

0.0

0.5

1.0

1.5

2.0

2.5

Chip Select Voltage (V)

Op Amp

shuts off here

Op Amp

turns on here

Hysteresis

VDD = 2.5V

G = +1 V/V

VIN = 1.25V

CS swept

low to high

CS swept

high to low

-0.5

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

0.0E+00

5.0E-06

1.0E-05

1.5E-05

2.0E-05

2.5E-05

3.0E-05

3.5E-05

Time (5 µs/div)

Output High-Z

VDD = 5.0V

G = +1 V/V

VIN = VSS

Output

VOUT

CS Voltage

-50

-40

-30

-20

-10

-50

-25

100

125

Ambient Temperature (°C)

VDD = 5.5V

VDD = 2.5V

Representative Part

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

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

Chip Select Voltage (V)

Op Amp

shuts off here

Op Amp

turns on here

Hysteresis

CS swept

high to low

CS swept

low to high

VDD = 5.5V

G = +1 V/V

VIN = 2.75V

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