MAX71020 데이터 시트보기 (PDF) - Maxim Integrated

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MAX71020

Single-Chip Electricity Meter AFE

Maxim Integrated 

MAX71020

Single-Chip Electricity Meter AFE

ELECTRICAL CHARACTERISTICS (continued)

PARAMETER

CONDITIONS

Preamplifier and ADC Total

Harmonic

(VIN = 28mV Differential)

TA = +25°C; VV3P3A = 3.3V, PRE_E = 1

Preamplifier and ADC Total

Harmonic Distortion

(VIN = 15mV Differential)

TA = +25°C; VV3P3A = 3.3V, PRE_E = 1

SPI SLAVE TIMING SPECIFICATIONS

SPI Setup Time

SPI_DI to SPI_CK rise

SPI Hold Time

SPI_CLK rise to SPI_DI

SPI Output Delay

SPI_CLK fall to SPI_D0

SPI Recovery Time

SPI_CSZ fall to SPI_CLK

SPI Removal Time

SPI_CLK to SPI_CSZ rise

SPI Clock High

SPI Clock Low

SPI Clock Frequency

SPI Transaction Space

(SPI_CSZ Rise to SPI_CSZ Fall)

RESETZ TIMING

Reset Pulse Width

Reset Pulse Rise Time

VOLTAGE MONITOR

Following power-on

At all other times

(Note 4)

Nominal Value at +22°C

(VNOM)

VV3P3A = 3.3V

Voltage Measurement Equation

Voltage Error

100

×







üüüüüü

Vüüü



- 1



Note 2: V3P3SYS and V3P3A must be connected together.

Note 3: GNDA and GNDD must be connected together.

Note 4: Guaranteed by design, not production tested.

MIN

TYP

MAX UNITS

-80

dB

-85

dB

10

ns

10

ns

40

ns

10

ns

15

ns

40

ns

40

ns

10

MHz

1

µs

1

ms

5

µs

1

µs

130

LSB

VV3P3SYS(CALC) = 3.29V +

(VSENSE – 130) x 0.025V +

STEMP x 242FV

-4

+4

%

Maxim Integrated

  5

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