ADE7758 Ver la hoja de datos (PDF) - Analog Devices

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ADE7758

Poly Phase Multifunction Energy Metering IC with Per Phase Information

Analog Devices 

Data Sheet

ADE7758

SPECIFICATIONS

AVDD = DVDD = 5 V ± 5%, AGND = DGND = 0 V, on-chip reference, CLKIN = 10 MHz XTAL, TMIN to TMAX = −40°C to +85°C.

Table 1.

Parameter1, 2

ACCURACY

Active Energy Measurement Error

(per Phase)

Phase Error Between Channels

PF = 0.8 Capacitive

PF = 0.5 Inductive

AC Power Supply Rejection

Output Frequency Variation

DC Power Supply Rejection

Output Frequency Variation

Active Energy Measurement Bandwidth

IRMS Measurement Error

IRMS Measurement Bandwidth

VRMS Measurement Error

VRMS Measurement Bandwidth

ANALOG INPUTS

Maximum Signal Levels

Input Impedance (DC)

ADC Offset Error3

Gain Error3

WAVEFORM SAMPLING

Current Channels

Signal-to-Noise Plus Distortion

Bandwidth (−3 dB)

Voltage Channels

Signal-to-Noise Plus Distortion

Bandwidth (−3 dB)

REFERENCE INPUT

REFIN/OUT Input Voltage Range

Input Capacitance

ON-CHIP REFERENCE

Reference Error

Current Source

Output Impedance

Temperature Coefficient

CLKIN

Input Clock Frequency

LOGIC INPUTS

DIN, SCLK, CLKIN, and CS

Input High Voltage, VINH

Input Low Voltage, VINL

Input Current, IIN

Input Capacitance, CIN

Specification

0.1

±0.05

±0.05

0.01

0.01

14

0.5

14

0.5

260

±500

380

±30

±6

62

14

62

260

2.6

2.2

10

±200

6

4

30

15

5

Unit

% typ

°max

°max

% typ

% typ

kHz

% typ

kHz

% typ

Hz

mV max

kΩ min

mV max

% typ

dB typ

kHz

dB typ

Hz

V max

V min

pF max

mV max

μA max

kΩ min

ppm/°C typ

MHz max

MHz min

Test Conditions/Comments

Over a dynamic range of 1000 to 1

Line frequency = 45 Hz to 65 Hz, HPF on

Phase lead 37°

Phase lag 60°

AVDD = DVDD = 5 V + 175 mV rms/120 Hz

V1P = V2P = V3P = 100 mV rms

AVDD = DVDD = 5 V ± 250 mV dc

V1P = V2P = V3P = 100 mV rms

Over a dynamic range of 500:1

Over a dynamic range of 20:1

See the Analog Inputs section

Differential input

Uncalibrated error, see the Terminology section

External 2.5 V reference

Sampling CLKIN/128, 10 MHz/128 = 78.1 kSPS

See the Current Channel ADC section

See the Voltage Channel ADC section

2.4 V + 8%

2.4 V − 8%

Nominal 2.4 V at REFIN/OUT pin

All specifications CLKIN of 10 MHz

2.4

V min

DVDD = 5 V ± 5%

0.8

V max

DVDD = 5 V ± 5%

±3

μA max

Typical 10 nA, VIN = 0 V to DVDD

10

pF max

Rev. E | Page 5 of 72

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