ADE7878AACPZ Ver la hoja de datos (PDF) - Analog Devices

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Fabricante

ADE7878AACPZ

Polyphase Multifunction Energy Metering IC

Analog Devices 

ADE7854A/ADE7858A/ADE7868A/ADE7878A

Data Sheet

Parameter1, 2, 3

ANALOG INPUTS

Maximum Signal Levels

Input Impedance (DC)

IAP, IAN, IBP, IBN, ICP, ICN, INP, INN, VAP,

VBP, and VCP Pins

VN Pin

ADC Offset

Gain Error

WAVEFORM SAMPLING

Current and Voltage Channels

Signal-to-Noise Ratio, SNR

Signal-to-Noise-and-Distortion (SINAD)

Ratio

Bandwidth (−3 dB)

TIME INTERVAL BETWEEN PHASES

Measurement Error

CF1, CF2, CF3 PULSE OUTPUTS

Maximum Output Frequency

Duty Cycle

Active Low Pulse Width

Jitter

REFERENCE INPUT

REFIN/OUT Input Voltage Range

Input Capacitance

ON-CHIP REFERENCE, PSM0 AND PSM1 MODES

Temperature Coefficient

CLKIN

Input Clock Frequency

LOGIC INPUTS—MOSI/SDA, SCLK/SCL, SS

/HSA, RESET, PM0, AND PM1

Input High Voltage, VINH

Input Low Voltage, VINL

Input Current, IIN

Input Capacitance, CIN

LOGIC OUTPUTS, IRQ0, IRQ1, MISO/HSD

Output High Voltage, VOH

ISOURCE

Output Low Voltage, VOL

ISINK

Min

400

130

1.1

−32

16.22

2.0

2.4

Typ

Max

±500

−34

±4

74

74

2

0.3

8

50

(1 + 1/CFDEN)

× 50%

80

0.04

1.3

10

±5

+32

16.384

16.55

0.8

−8.7

3

10

800

0.4

2

Unit

Test Conditions/Comments

mV peak

PGA = 1, differential or single-ended inputs

between the following pins: IAP and IAN, IBP

and IBN, ICP and ICN, INP and INN; single-

ended inputs between the following pins:

VAP and VN, VBP and VN, VCP and VN

kΩ

kΩ

mV

PGA = 1; see the Terminology section

%

External 1.2 V reference

Sampling CLKIN/2048, 16.384 MHz/2048 =

8 kSPS

See the Waveform Sampling Mode section

dB

PGA = 1, fundamental frequency = 45 Hz to

65 Hz; see the Terminology section

dB

PGA = 1, fundamental frequency = 45 Hz to

65 Hz; see the Terminology section

kHz

Degrees Line frequency = 45 Hz to 65 Hz, HPF on

kHz

WTHR = VARTHR = VATHR = PMAX =

33,516,139

%

CF1, CF2, or CF3 frequency > 6.25 Hz, CFDEN

is even and > 1

CF1, CF2, or CF3 frequency > 6.25 Hz, CFDEN

is odd and > 1

ms

CF1, CF2, or CF3 frequency < 6.25 Hz

%

CF1, CF2, or CF3 frequency = 1 Hz, nominal

phase currents larger than 10% of full scale

V

pF

ppm/°C

MHz

Minimum = 1.2 V − 8%; maximum = 1.2 V + 8%

Nominal 1.2 V at the REFIN/OUT pin at TA = 25°C

Drift across the entire temperature range of

−40°C to +85°C is calculated with reference to

25°C; see the Reference Circuit section

CLKIN = 16.384 MHz; see the Crystal Circuit

section

V

VDD = 3.3 V ± 10%

V

VDD = 3.3 V ± 10%

µA

Input = 0 V, VDD = 3.3 V

µA

Input = VDD = 3.3 V

pF

V

VDD = 3.3 V ± 10%

µA

V

VDD = 3.3 V ± 10%

mA

Rev. C | Page 8 of 96

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