MCP621_14 datasheet(8/62 Pages) MICROCHIP

8 / 62 page

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

DS20002188D-page 8

 2009-2014 Microchip Technology Inc.

2.0

TYPICAL PERFORMANCE CURVES

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

2.1

DC Signal Inputs

FIGURE 2-1:

Input Offset Voltage.

FIGURE 2-2:

Input Offset Voltage Drift.

FIGURE 2-3:

Input Offset Voltage

Repeatability (repeated calibration).

FIGURE 2-4:

Input Offset Voltage vs.

Power Supply Voltage.

FIGURE 2-5:

Input Offset Voltage vs.

Output Voltage.

FIGURE 2-6:

Low Input Common Mode

Voltage Headroom vs. Ambient Temperature.

Note:

The graphs and tables provided following this note are a statistical summary based on a limited number of

samples and are provided for informational purposes only. The performance characteristics listed herein

are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified

operating range (e.g., outside specified power supply range) and therefore outside the warranted range.

10%

12%

14%

16%

18%

20%

22%

-80

-60

-40

-20

20406080

Input Offset Voltage (µV)

80 Samples

TA = +25°C

VDD = 2.5V and 5.5V

Calibrated at +25°C

10%

12%

14%

16%

18%

20%

22%

24%

-10 -8

-6

-4

-2

2468

Input Offset Voltage Drift (µV/°C)

80 Samples

VDD = 2.5V and 5.5V

TA = -40°C to +125°C

Calibrated at +25°C

10%

15%

20%

25%

30%

35%

40%

45%

50%

-60 -50 -40 -30 -20 -10 0 10 20 30 40 50 60

Input Offset Voltage Calibration Repeatability

(µV)

200 Samples

TA = +25°C

VDD = 2.5V and 5.5V

Calibration

Changed

(-1 step)

No Change

(includes noise)

Calibration

Changed

(+1 step)

-700

-600

-500

-400

-300

-200

-100

100

200

300

1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5

Power Supply Voltage (V)

+125°C

+85°C

+25°C

-40°C

Representative Part

Calibrated at VDD = 6.5V

-50

-40

-30

-20

-10

0.00.5 1.01.5 2.0 2.5 3.03.5 4.04.5 5.05.5

Output Voltage (V)

VDD = 2.5V

VDD = 5.5V

Representative Part

-0.5

-0.4

-0.3

-0.2

-0.1

0.0

-50

-25

100

125

Ambient Temperature (°C)

VDD = 2.5V

1 Lot

Low (VCMR_L – VSS)

VDD = 5.5V

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