MCP6281 datasheet(8/36 Pages) MICROCHIP

8 / 36 page

MCP6281/1R/2/3/4/5

DS21811E-page 8

TYPICAL PERFORMANCE CURVES (CONTINUED)

Note: Unless otherwise indicated, TA = +25°C, VDD = +2.2V to +6.0V, VSS = GND, VCM = VDD/2, VOUT ≈ VDD/2,

VL = VDD/2, RL = 10 kΩ to VL, CL = 60 pF and CS is tied low.

FIGURE 2-19:

Input Noise Voltage Density

vs. Frequency.

FIGURE 2-20:

Output Short Circuit Current

vs. Power Supply Voltage.

FIGURE 2-21:

Quiescent Current vs.

Chip Select (CS) Voltage at VDD = 2.2V

(MCP6283 and MCP6285 only).

FIGURE 2-22:

Input Noise Voltage Density

vs. Common Mode Input Voltage at 1 kHz.

FIGURE 2-23:

Channel-to-Channel

Separation vs. Frequency (MCP6282 and

MCP6284 only).

FIGURE 2-24:

Quiescent Current vs.

Chip Select (CS) Voltage at VDD = 5.5V

(MCP6283 and MCP6285 only).

100

1,000

1.E-01

1.E+00

1.E+01

1.E+02

1.E+03

1.E+04

1.E+05

1.E+06

Frequency (Hz)

0.1

100

100k

10k

0.00.5

1.01.5

2.02.5

3.03.5

4.04.5

5.05.5

Power Supply Voltage (V)

TA = +125°C

TA = +85°C

TA = +25°C

TA =

-40°C

100

150

200

250

300

350

400

450

500

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

2.2

Chip Select Voltage (V)

Hysteresis

Op-Amp shuts off here

Op-Amp turns on here

VDD = 2.2V

CS swept

high to low

CS swept

low to high

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

Common Mode Input Voltage (V)

f = 1 kHz

VDD = 5.0V

100

110

120

130

140

100

Frequency (kHz)

100

200

300

400

500

600

700

800

900

1000

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)

Hysteresis

Op Amp toggles On/Off here

VDD = 5.5V

CS swept

low to high

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