MCP39F511A datasheet(5/68 Pages) MICROCHIP

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 2018 Microchip Technology Inc.

DS20006044A-page 5

MCP39F511A

Minimum Time

for Voltage Surge/Sag

Detection

tAC_SASU

—

5, see

Section 7.2

—ms

Note 4

24-Bit Delta-Sigma ADC Performance

Analog Input

Absolute Voltage

VIN

-1

—

Analog Input

Leakage Current

AIN

—1

—

Differential Input

Voltage Range

(I1+ – I1-),

(V1+ – V1-)

-600/GAIN

—

+600/GAIN

VREF = 1.2V,

proportional to VREF

Offset Error

VOS

-1

—

Offset Error Drift

—

0.5

—

V/°C

Gain Error

-4

—

Note 5

Gain Error Drift

—

ppm/°C

Differential Input

Impedance

ZIN

232

—



G= 1

142

—



G= 2

—



G= 4

—



G= 8

—



G= 16

—



G= 32

Signal-to-Noise

and Distortion Ratio

SINAD

94.5

—

Note 6

Total Harmonic Distortion

THD

—

-106.5

-103

dBc

Note 6

Signal-to-Noise Ratio

SNR

—

Note 6

Spurious Free

Dynamic Range

SFDR

—

111

—

Note 6

Crosstalk

CTALK

—

-122

—

AC Power

Supply Rejection Ratio

AC PSRR

—

-73

—

AVDD and

DVDD = 3.3V + 0.6VPP,

100Hz, 120Hz, 1kHz

DC Power

Supply Rejection Ratio

DC PSRR

—

-73

—

AVDD and DVDD = 3.0 to

3.6V

DC Common

Mode Rejection Ratio

DC CMRR

—

-105

—

VCM varies

from -1V to +1V

10-Bit SAR ADC Performance for Temperature Measurement

Resolution

—10

—

bits

TABLE 1-1:

ELECTRICAL CHARACTERISTICS (CONTINUED)

Electrical Specifications:

Unless otherwise indicated, all parameters apply at AVDD, DVDD = +2.7 to +3.6V, TA = -40°C to +125°C,

MCLK = 4 MHz, PGA GAIN = 1.

Characteristic

Sym.

Min.

Typ.

Max.

Units

Test Conditions

Note

Calculated from reading the register values with no averaging, single computation cycle with accumulation interval of 4

line cycles.

Specification by design and characterization; not production tested.

N = Value in the Accumulation Interval Parameter register. The default value of this register is 2 or TCAL =80 ms for

50 Hz line.

Applies to Voltage Sag and Voltage Surge events only.

Applies to all gains. Offset and gain errors depend on the PGA gain setting. See Section 2.0 “Typical Performance

Curves”

for typical performance.

VIN =1.2 VPP =424 mVRMS @ 50/60 Hz. This parameter is established by characterization and is not 100% tested.

Variation applies to internal clock and UART only. All calculated output quantities can be temperature compensated to

the performance listed in the respective specification.

The internal ADC clock frequency is affected by the amplitude of the AC signal applied on the voltage channel,

decreasing the overall accuracy if the amplitude is low. In DC mode, the internal ADC clock frequency is constant.

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