ade7880 Analog Devices, Inc., ade7880 Datasheet - Page 13

• Manufacturer Part Number: ade7880
• Description: Polyphase Multifunction Energy Metering Ic With Harmonic Monitoring
• Manufacturer: Analog Devices, Inc.

Preliminary Technical Data
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Table 7. Pin Function Descriptions
Pin No.
1, 10, 11, 20,
21, 30, 31, 40
2
3
4
5
6
7, 8
9, 12
13, 14
15, 16
Mnemonic
NC
PM0
PM1
RESET
DVDD
DGND
IAP, IAN
IBP, IBN
ICP, ICN
INP, INN
RESET
DVDD
DGND
Description
No Connect. 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 document 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 document 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 document 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 document 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
IAP
IAN
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 PAD THE AGND.
PM0
PM1
IBP
NC
NC
10
1
2
3
4
5
6
7
8
9
NC
NC
40
11
HSA
SS
IBN
39
12
/
MOSI/
SDA
ICP
Figure 6. Pin Configuration
38
13
Rev. PrE | Page 13 of 103
MISO/
ICN
HSD
37
14
(not to scale)
TOP VIEW
SCLK/
ADE7880
INP
SCL
36
15
HSCLK
INN
CF3/
35
16
HREADY
REF
CF2/
34
17
in/out
CF1
VN
33
18
IRQ
VCP
32
19
1
NC
NC
31
20
30
29
28
27
26
25
24
23
22
21
IRQ
CLKOUT
VDD
VAP
VBP
CLKIN
AGND
AVDD
NC
NC
0
ADE7880