MCP37D31-80ESLASHTE datasheet(14/141 Pages) MICROCHIP

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 2020 Microchip Technology Inc.

DS20006382A-page 14

MCP37D31-80 AND MCP37D21-80

Supply Current during Power-Saving Modes

During Standby Mode

ISTANDBY_AN

—

Address 0x00<4:3> = 1,1(2)

ISTANDBY_DIG

—23

—

During Shutdown Mode

IDD_SHDN

—

Address 0x00<7,0> = 1,1(3)

PLL Circuit

PLL Circuit Current

IDD_PLL

—

PLL enabled. Included in

analog supply current

specification.

Total Power Dissipation(4)

Power Dissipation

During Conversion,

Excluding Digital I/O

PDISS_ADC

—229

—

Total Power Dissipation

During Conversion with

CMOS Output Mode

PDISS_CMOS

—

257

253

—

MCP37D31-80

MCP37D21-80

@DCLK = 80 MHz

Total Power Dissipation

During Conversion with

LVDS Output Mode

PDISS_LVDS

—

329

320

—

MCP37D31-80

MCP37D21-80

@LVDS_IMODE<2:0> = 3.5 mA

During Standby Mode

PDISS_STANDBY

—79

—

Address 0x00<4:3> = 1,1(2)

During Shutdown Mode

PDISS_SHDN

—22

—

Address 0x00<7,0> = 1,1(3)

Power-on Reset (POR) Voltage

Threshold Voltage

VPOR

—

800

—

Applicable to AVDD12 only

(POR tracks AVDD12)

Hysteresis

VPOR_HYST

—40

—

SENSE Input(5,7)

SENSE Input Voltage

VSENSE

GND

—

AVDD12

VSENSE selects reference

SENSE Pin Input

Resistance

RIN_SENSE

—500

—



To virtual ground at 0.55V.

400 mV < VSENSE <800 mV

Current Sink into SENSE

ISENSE

—

4.5

—

µA

SENSE = 1.2V

—

636

—

SENSE = 0.8V

—

-2

—

SENSE = 0V

Reference and Common-Mode Voltages

Internal Reference Voltage

(Selected by VSENSE)

VREF

—0.74

—

VSENSE = GND

—1.49

—

VSENSE = AVDD12

—

1.86 x VSENSE

—

400 mV < VSENSE <800 mV

Reference Voltage

Output(7,8)

VREF1—

0.4

—

VSENSE = GND

—0.8

—

VSENSE = AVDD12

—

0.4 - 0.8

—

400 mV < VSENSE <800 mV

VREF0—

0.7

—

VSENSE = GND

—1.4

—

VSENSE = AVDD12

—

0.7 - 1.4

—

400 mV < VSENSE <800 mV

Bandgap Voltage Output

VBG

—

0.55

—

Available at VBG pin

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), Resolution = 16-bit, 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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