ADE7880ACPZ(RevA) Просмотр технического описания (PDF) - Analog Devices

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ADE7880ACPZ
(Rev.:RevA)

Polyphase Multifunction Energy Metering IC with Harmonic Monitoring

Analog Devices 

Data Sheet

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

ADE7880

NC 1

PM0 2

PM1 3

RESET 4

DVDD 5

DGND 6

IAP 7

IAN 8

IBP 9

NC 10

ADE7880

TOP VIEW

(Not to Scale)

30 NC

29 IRQ0

28 CLKOUT

27 CLKIN

26 VDD

25 AGND

24 AVDD

23 VAP

22 VBP

21 NC

NOTES

1. NC = NO CONNECT.

2. CREATE A SIMILAR PAD ON THE PCB UNDER THE

EXPOSED PAD. SOLDER THE EXPOSED PAD TO

THE PAD ON THE PCB TO CONFER MECHANICAL

STRENGTH TO THE PACKAGE. DO NOT CONNECT

THE PADS TO AGND OR DGND.

Figure 6. Pin Configuration

Table 7. Pin Function Descriptions

Pin No.

Mnemonic

1, 10, 11, 20, NC

21, 30, 31, 40

2

PM0

3

PM1

4

RESET

5

DVDD

6

DGND

7, 8

IAP, IAN

9, 12

IBP, IBN

13, 14

ICP, ICN

15, 16

INP, INN

17

REFIN/OUT

Description

No Connect. Do not connect to these pins. These pins are not connected internally.

Power Mode Pin 0. This pin, combined with PM1, defines the power mode of the ADE7880, as

described in Table 8.

Power Mode Pin 1. This pin defines the power mode of the ADE7880 when combined with PM0, as

described in Table 8.

Reset Input, Active Low. In PSM0 mode, this pin should stay low for at least 10 μs to trigger a

hardware reset.

This pin provides access to the on-chip 2.5 V digital LDO. Do not connect any external active

circuitry to this pin. Decouple this pin with a 4.7 μF capacitor in parallel with a ceramic 220 nF

capacitor.

Ground Reference. This pin provides the ground reference for the digital circuitry.

Analog Inputs for Current Channel A. This channel is used with the current transducers and is

referenced in this data sheet as Current Channel A. These inputs are fully differential voltage inputs

with a maximum differential level of ±0.5 V. This channel also has an internal PGA equal to the ones

on Channel B and Channel C.

Analog Inputs for Current Channel B. This channel is used with the current transducers and is

referenced in this data sheet as Current Channel B. These inputs are fully differential voltage inputs

with a maximum differential level of ±0.5 V. This channel also has an internal PGA equal to the ones

on Channel C and Channel A.

Analog Inputs for Current Channel C. This channel is used with the current transducers and is

referenced in this data sheet as Current Channel C. These inputs are fully differential voltage inputs

with a maximum differential level of ±0.5 V. This channel also has an internal PGA equal to the ones

on Channel A and Channel B.

Analog Inputs for Neutral Current Channel N. This channel is used with the current transducers and

is referenced in this data sheet as Current Channel N. These inputs are fully differential voltage

inputs with a maximum differential level of ±0.5 V. This channel also has an internal PGA, different

from the ones found on the A, B, and C channels.

This pin provides access to the on-chip voltage reference. The on-chip reference has a nominal

value of 1.2 V. An external reference source with 1.2 V ± 8% can also be connected at this pin. In

either case, decouple this pin to AGND with a 4.7 μF capacitor in parallel with a ceramic 100 nF

capacitor. After reset, the on-chip reference is enabled.

Rev. A | Page 11 of 104

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