MCP37D31-80ESLASHTE datasheet(32/141 Pages) MICROCHIP

32 / 141 page

 2020 Microchip Technology Inc.

DS20006382A-page 32

MCP37D31-80 AND MCP37D21-80

FIGURE 3-35:

SNR/SFDR vs.Temperature:

fS = 80 Msps, fIN = 14.7 MHz, VSENSE = AVDD12,

AIN = -1 dBFS.

FIGURE 3-36:

SNR/SFDR vs. Supply

Voltage: fS = 80 Msps, fIN = 14.7 MHz.

FIGURE 3-37:

Gain and Offset Error Drifts

Vs. Temperature using Internal Reference, with

Respect to 25°C: fS = 80 Msps, fIN = 14.7 MHz,

VSENSE = AVDD12, Resolution = 16-bit,

AIN = -1dBFS.

FIGURE 3-38:

VREF0 vs. Temperature.

FIGURE 3-39:

HD2/HD3 vs. Supply

Voltage: fS = 80 Msps, fIN = 14.7 MHz.

Temp Range: -40C to +125C

-40

-25

-10

110 125

Temperature (

oC)

72.4

72.8

73.2

73.6

74.4

74.8

= 14.7 MHz @ -1 dBFS

Resolution = 16-bit

SNR (dBFS)

SFDR (dBFS)

Waiting for New Data

1.08/1.62

1.14/1.71

1.2/1.8

1.26/1.89

1.32/1.98

Supply Voltage (V)

73.7

73.8

73.9

74.1

74.2

SFDR (dBFS)

SNR (dBFS)

= 14.7 MHz @ -1 dBFS

Resolution = 16-bit

Waiting for New Data

-40 -25 -10

95 110 125

Temperature (°C)

-0.3

-0.2

-0.1

0.1

0.2

0.3

0.4

0.5

Gain Error (%)

Offset (LSB)

-3

-2

-1

-55

-35

-15

105

125

Temperature (°C)

1.365

1.37

1.375

1.38

1.385

DD18

= 1.9V

DD18

= 1.8V

DD18

= 1.7V

1.08/1.62

1.14/1.71

1.2/1.8

1.26/1.89

1.32/1.98

Supply Voltage (V)

-102

-100

-98

-96

-94

-92

-90

= 14.7 MHz @ -1 dBFS

Resolution = 16-bit

HD3 (dBFS)

HD2 (dBFS)

MCP37D31-80E/TE Datasheet(PDF) 32 Page - Microchip Technology

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