MCP3422 datasheet(9/58 Pages) MICROCHIP

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DS22088C-page 9

MCP3422/3/4

2.0

TYPICAL PERFORMANCE CURVES

Note: Unless otherwise indicated, TA = -40°C to +85°C, VDD = +5.0V, VSS = 0V, CHn+ = CHn- = VREF/2,

VINCOM = VREF/2.

FIGURE 2-1:

INL vs. Supply Voltage

(VDD).

FIGURE 2-2:

INL vs. Temperature.

FIGURE 2-3:

Offset Error vs.

Temperature.

FIGURE 2-4:

Output Noise vs. Input

Voltage.

FIGURE 2-5:

Total Error vs. Input Voltage.

FIGURE 2-6:

Gain Error vs. 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.

0.0005

0.001

0.0015

0.002

0.0025

0.003

0.0035

2.5

3.5

4.5

5.5

DD (V)

PGA = 8

PGA = 4

PGA = 1

PGA = 2

TA = +25°C

0.0005

0.001

0.0015

0.002

0.0025

0.003

0.0035

-60 -40 -20

80 100 120 140

Temperature (

oC)

2.7V

5.5V

PGA = 1

-20

-15

-10

-5

-60 -40 -20

80 100 120 140

Temperature (°C)

PGA = 1

PGA = 2

PGA = 4

PGA = 8

-100

-75

-50

-25

100

Input Signal (% of FSR)

PGA = 1

PGA = 2

PGA = 4

PGA = 8

TA = +25°C

-2

-1.5

-1

-0.5

0.5

1.5

-100

-75

-50

-25

100

Input Voltage (% of Full-Scale)

PGA = 1

PGA = 8

PGA = 4

PGA = 2

TA = +25°C

-0.6

-0.5

-0.4

-0.3

-0.2

-0.1

0.1

0.2

-60 -40 -20

80 100 120 140

Temperature (°C)

PGA = 1

PGA = 2

PGA = 4

PGA = 8

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