MCP37D11-80ESLASHTE datasheet(14/136 Pages) MICROCHIP

14 / 136 page

MCP37D11-80: 80 MSPS 12-BIT PIPELINED ADC

DS20006381A-page 14

 2020 Microchip Technology Inc.

Dynamic Accuracy(6,14)

Spurious Free Dynamic

Range

SFDR

92.2

—

dBc

fIN = 15 MHz

94.1

—

dBc

fIN = 4.3 MHz

Signal-to-Noise Ratio

SNR

69.5

70.9

—

dBFS fIN = 15 MHz

—

71.4

—

dBFS fIN = 4.3 MHz

Effective Number of Bits

(ENOB)(12)

ENOB

—

11.5

—

bits

fIN = 15 MHz

—11.6

—

bits

fIN = 4.3 MHz

Total Harmonic Distortion

(for all resolutions, first 13

harmonics)

THD

-79

-89.1

—

dBc

fIN = 15 MHz

-79

-92.4

—

dBc

fIN = 4.3MHz

Worst Second or

Third Harmonic Distortion

HD2 or HD3

—

-93.5

—

dBc

fIN = 15 MHz

—-92.4

—

dBc

fIN = 4.3 MHz

SNR improvement when NSR is enabled: See Section 4.8.2, Noise-Shaping Requantizer (NSR) for details and

Figure 3-13 to Figure 3-18 as examples.

Signal-to-Noise Ratio

SNR

—

76.9

—

dBFS NSR Filter # = 47

fIN = 14.7 MHz@-1 dBFS

—

dBFS NSR Filter # = 52

fIN = 14.7 MHz@-1 dBFS

—

77.2

—

dBFS NSR Filter # = 63

fIN = 4 MHz@-1 dBFS

Digital Logic Input and Output (Except LVDS Output)

Schmitt Trigger High-Level

Input Voltage

VIH

0.7

DVDD18

—DVDD18

Schmitt Trigger Low-Level

Input Voltage

VIL

GND

—

0.3

DVDD18

Hysteresis of Schmitt

Trigger Inputs

(All Digital Inputs)

VHYST

—

0.05 DVDD18

—V

Low-Level Output Voltage

VOL

——

0.3

IOL = -3 mA, all digital I/O pins

High-Level Output Voltage

VOH

DVDD18 –

0.5

1.8

—

IOL = +3 mA, all digital I/O pins

Digital Data Output (CMOS Mode)

Maximum External Load

Capacitance

CLOAD

—

From output pin to GND

Internal I/O Capacitance

CINT

—4

—

Note 5

Digital Data Output (LVDS Mode)(5)

LVDS High-Level

Differential Output Voltage

VH_LVDS

200

300

400

LVDS_IMODE<2:0> = 3.5 mA

LVDS Low-Level

Differential Output Voltage

VL_LVDS

-400

-300

-200

LVDS_IMODE<2:0> = 3.5 mA

LVDS Common-Mode

Voltage

VCM_LVDS

1.15

1.4

Output Capacitance

CINT_LVDS

—

Internal capacitance from

output pin to GND

TABLE 2-1:

ELECTRICAL CHARACTERISTICS (CONTINUED)

Electrical Specifications: Unless otherwise specified, all parameters apply for TA = -40°C to +125°C, AVDD18 =DVDD18 =1.8V,

AVDD12 =DVDD12 = 1.2V, GND = 0V, SENSE = AVDD12, Single-channel mode, Differential Analog Input (AIN) = Sine wave with

amplitude of -1 dBFS, fIN = 15 MHz, Clock Input = 80 MHz, fS = 80 Msps (ADC Core), PLL and decimation filters are disabled, Output

load: CMOS data pin = 10 pF, LVDS = 100

termination, LVDS driver current setting = 3.5 mA, +25°C is applied for typical value.

Parameters

Sym.

Min.

Typ.

Max.

Units

Conditions

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