MCP33131 datasheet(3/54 Pages) MICROCHIP

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 2018 Microchip Technology Inc.

DS20006122A-page 3

MCP33131/MCP33121/MCP33111-XX

1.0

KEY ELECTRICAL

CHARACTERISTICS

1.1

Absolute Maximum Ratings†

External Analog Supply Voltage (AVDD) ................... -0.3V to 2.0V

External Digital Supply Voltage (DVIO) ..................... -0.3V to 5.8V

External Reference Voltage (VREF) .......................... -0.3V to 5.8V

Analog Inputs w.r.t GND .................... .......... –0.3V to VREF+0.3V

Current at Input Pins ...........................................................±2 mA

Current at Output and Supply Pins .................................±250 mA

Storage Temperature ...........................................-65°C to +150°C

Maximum Junction Temperature (TJ) ................................+150°C

ESD protection on all pins .... ≤2kV HBM, ≤2kV CDM, ≤200V MM

†Notice: Stresses above those listed under “Absolute

Maximum Ratings” may cause permanent damage to the

device. This is a stress rating only and functional operation of

the device at those or any other conditions above those

indicated in the operational listings of this specification is not

implied. Exposure to maximum rating conditions for extended

periods may affect device reliability

1.2

Electrical Specifications

TABLE 1-1:

KEY ELECTRICAL CHARACTERISTICS

Electrical Specifications: Unless otherwise specified, all parameters apply for TA = -40°C to +125°C, AVDD = 1.8V, DVIO = 3.3V, VREF =5V,

GND = 0V, Analog Input (VIN) = -1 dBFS sine wave, fIN =10 kHz, CLOAD_SDO = 20 pF.

• MCP331x1-10: Sample Rate (fS) = 1 Msps, SPI Clock Input (SCLK) = 60 MHz.

• MCP331x1-05: Sample Rate (fS) = 500 kSPS, SPI Clock Input (SCLK) = 30 MHz.

Parameters

Sym.

Min.

Typ.

Max.

Units

Conditions

Power Supply Requirements

Analog Supply Voltage Range

AVDD

1.7

1.8

1.9

(Note 3)

Digital Input/Output Interface Voltage

Range

DVIO

1.7

—

5.5

(Note 3)

Analog Supply Current at AVDD pin:

During Conversion

During Standby

IDDAN

IDDAN_STBY

—

1.6

1.4

0.8

2.4

2.0

—

µA

fs = 1 Msps (MCP331x1-10)

fs = 500 kSPS (MCP331x1-05)

During input acquisition (tACQ)

Digital Supply Current At DVDD pin:

During Output Data Reading

During Standby

IIO_DATA

IIO_STBY

—

290

200

—

A

fs = 1 Msps (MCP331x1-10)

fs = 500 kSPS (MCP331x1-05)

During input acquisition (tACQ)

External Reference Voltage Input

Reference Voltage

(Note 2), (Note 3)

VREF

2.5

2.7

5.1

-40°C ≤ TA ≤ 85°C

85°C < TA ≤ 125°C

Reference Load Current at VREF pin:

During Conversion

During Standby

IREF

IREF_STBY

—

450

220

240

600

360

—

µA

fs = 1 Msps (MCP331x1-10)

fs = 500 kSPS (MCP331x1-05)

During input acquisition (tACQ)

Total Power Consumption (Including AVDD, DVIO, VREF pins)

MCP331x1-10

at 1 Msps

at 500 ksps

at 100 ksps

During Standby

PDISS_TOTAL

PDISS_STBY

—

6.2

3.1

0.6

2.6

—

W

Averaged power for tACQ + tCNV

During input acquisition (tACQ)

MCP331x1-05

at 500 ksps

at 100 ksps

During Standby

PDISS_TOTAL

PDISS_STBY

—

4.2

0.8

2.6

—

W

Averaged power for tACQ + tCNV

During input acquisition (tACQ)

Note

1: This parameter is ensured by design and not 100% tested.

2: This parameter is ensured by characterization and not 100% tested.

3: Decoupling capacitor is recommended on the following pins:

(a) AVDD pin: 1 F ceramic capacitor, (b) DVIO pin: 0.1 F ceramic capacitor, (c) VREF pin: 10 F tantalum capacitor.

4: PSRR (dB) = -20 log (DVOUT/AVDD), where DVOUT = change in conversion result.

5: ENOB = (SINAD - 1.76)/6.02

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