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ADE7762

Polyphase Energy Metering IC with Phase Drop Indication

Analog Devices 

Preliminary Technical Data

ADE7762

SPECIFICATIONS

VDD = 5 V ± 5%, AGND = DGND = 0 V, on-chip reference, CLKIN = 10 MHz, TMIN to TMAX = −40°C to +85°C, unless otherwise noted.

Table 1.

Parameter

Conditions

Min

Typ

ACCURACY1, 2

Measurement Error on

Voltage channel with full-scale signal (±500 mV),

0.1

Current Channel

25°C, over a dynamic range of 500 to 1

Phase Error Between

Channels

PF = 0.8 Capacitive

PF = 0.5 Capacitive

AC Power Supply Rejection SCF = 0, S0 = S1 = 1

Output Frequency

IA = IB = IC = 100 mV rms,

0.01

Variation (CF)

VA = VB = VC = 100 mV rms @ 50 Hz,

Ripple on VDD of 200 mV rms @ 100 Hz

DC Power Supply Rejection S1 = 1; S0 = SCF = 0

Output Frequency

V1 = 100 mV rms, V2 = 100 mV rms,

0.1

Variation (CF)

VDD = 5 V ± 250 mV

ANALOG INPUTS

See Analog Inputs section

Maximum Signal Levels

VAP – VN, VBP – VN, VCP – VN, IAP – IAN, IBP – IBN, ICP – ICN

Input Impedance (DC)

CLKIN = 10 MHz

370

410

Bandwidth (−3 dB)

CLKIN/256, CLKIN = 10 MHz

14

ADC Offset Error1, 2

Gain Error

External 2.5 V reference, IA = IB = IC = 500 mV dc

±9

Max

Unit

% Reading

±0.1

Degrees

±0.1

Degrees

% Reading

% Reading

±0.5

V peak

difference

kΩ

kHz

±25

mV

% Ideal

REFERENCE INPUT

REFIN/OUT Input Voltage

Range

Input Impedance

Input Capacitance

ON-CHIP REFERENCE

Reference Error

Temperature Coefficient

CLKIN

Input Clock Frequency

LOGIC INPUTS3

ACF, S0, S1, and ABS

2.4 V + 8%

2.4 V − 8%

Nominal 2.4 V

All specifications for CLKIN of 10 MHz

2.2

3.3

25

10

2.6

10

±200

V

V

kΩ

pF

mV

ppm/°C

MHz

Input High Voltage, VINH

Input Low Voltage, VINL

Input Current, IIN

Input Capacitance, CIN

LOGIC OUTPUTS3

F1 and F2

Output High Voltage, VOH

Output Low Voltage, VOL

CF and NEGP

Output High Voltage, VOH

Output Low Voltage, VOL

LED_CTRL

Output Frequency

Output High Voltage

Output Low Voltage

VDD = 5 V ± 5%

VDD = 5 V ± 5%

Typically 10 nA, VIN = 0 V to VDD

ISOURCE = 10 mA, VDD = 5 V

ISINK = 10 mA, VDD = 5 V

VDD = 5 V, ISOURCE = 5 mA

VDD = 5 V, ISINK = 5 mA

VDD = 5 V, CLKIN = 10 MHz

VDD = 5 V, ISOURCE = 10 mA

VDD = 5 V, ISINK = 10 mA

2.4

V

0.8

V

±3

μA

10

pF

4.5

V

0.5

V

4.5

V

0.5

V

17.39

kHz

4.5

V

TBD

V

Rev. PrB | Page 3 of 28

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