MCP3906 Microchip Technology, MCP3906 Datasheet - Page 3

• Manufacturer Part Number: MCP3906
• Description: (MCP3905 / MCP3906) Energy-Metering ICs
• Manufacturer: Microchip Technology

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1.0
Absolute Maximum Ratings †
V
Digital inputs and outputs w.r.t. A
Analog input w.r.t. A
V
Storage temperature .....................................-65°C to +150°C
Ambient temp. with power applied ................-65°C to +125°C
Soldering temperature of leads (10 seconds) ............. +300°C
ESD on the analog inputs (HBM,MM) .................5.0 kV, 500V
ESD on all other pins (HBM,MM) ........................5.0 kV, 500V
© 2009 Microchip Technology Inc.
ELECTRICAL CHARACTERISTICS
Electrical Specifications: Unless otherwise indicated, all parameters apply at AV
Internal V
Overall Measurement Accuracy
Energy Measurement Error
No-Load Threshold/
Minimum Load
Phase Delay Between
Channels
AC Power Supply
Rejection Ratio
(Output Frequency Variation)
DC Power Supply
Rejection Ratio
(Output Frequency Variation)
System Gain Error
ADC/PGA Specifications
Offset Error
Gain Error Match
Internal Voltage Reference
Voltage
Tolerance
Tempco
Note 1:
DD
REF
...................................................................................7.0V
input w.r.t. A
2:
3:
4:
5:
6:
7:
8:
ELECTRICAL
CHARACTERISTICS
Parameter
REF
Measurement error = (Energy Measured By Device - True Energy)/True Energy * 100%. Accuracy is
measured with signal (±660 mV) on Channel 1. F
See Section 2.0 “Typical Performance Curves” for higher frequencies and increased dynamic range.
Does not include internal V
measured output frequency and expected transfer function.
Percent of HF
50 Hz, CH2 = 100 mVRMS @ 50 Hz, AV
Error applies down to 60° lead (PF = 0.5 capacitive) and 60° lag (PF = 0.5 inductive).
Refer to Section 4.0 “Device Overview” for complete description.
Specified by characterization, not production tested.
1 MCLK period at 3.58 MHz is equivalent to less than <0.005 degrees at 50 or 60 Hz.
Gain error match is measured from CH0 G = 1 to any other gain setting.
, HPF turned on (AC mode), A
GND
GND
.............................. -0.6V to V
..................................... ....-6V to +6V
OUT
GND
output frequency variation; Includes external V
DC PSRR
AC PSRR
........ -0.6V to V
Sym
NLT
V
E
OS
REF
. Gain = 1, CH0 = 470 mVDC, CH1 = 660 mVDC, difference between
GND
Min
DD
—
—
—
—
—
—
—
—
—
—
—
—
DD
, D
+0.6V
+0.6V
GND
DD
0.0015
Typ.
0.01
0.01
0.1
0.1
0.5
2.4
±2
15
—
3
2
= 0V, MCLK = 3.58 MHz; T
= 5V + 1V
OUT0
1/MCLK
† Notice: Stresses above those listed under "Maximum
Ratings" may cause permanent damage to the device. This is
a stress rating only and functional operation of the device at
those or any other conditions above those indicated in the
operation listings of this specification is not implied. Exposure
to maximum rating conditions for extended periods may affect
device reliability.
Max
—
—
—
—
—
10
—
—
—
—
5
, F
pp
OUT1
@ 100 Hz. DC PSRR: 5V ±500 mV.
% F
% F
% F
% F
% F
% F
% F
ppm/°C
Units
Max.
pulse outputs. Valid from 45 Hz to 65 Hz.
mV
%
V
s
OUT
OUT
OUT
OUT
OUT
OUT
OUT
REF
= 2.5V, CH1 = 100 mVRMS @
Channel 0 swings 1:500 range,
MCP3905 only (Note 1, Note 4)
Channel 0 swings 1:1000 range,
MCP3906 only (Note 1, Note 4)
Disabled when F2, F1, F0 = 0, 1, 1
(Note 5, Note 6)
HPF = 0 and 1, < 1 MCLK
(Note 4, Note 6, Note 7)
F2, F1, F0 = 0, 1, 1 (Note 3)
HPF = 1, Gain = 1 (Note 3)
Note 2, Note 5
Referred to Input
Note 8
A
DD
= -40°C to +85°C.
MCP3905/06
= DV
DD
= 4.5V – 5.5V,
Comment
DS21948E-page 3