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FEATURES
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SA9106A
SINGLE PHASE WATT MEASUREMENT IC
WITH INTEGRATED 5 DIGIT LED DISPLAY DRIVER
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Performs bidirectional power measure-
ment and directly drives a 5 digit (7
segment) LED display
Accuracy better than 1% (± 1 count)
Protected against ESD
Total power consumption rating below
50mW
Adaptable to different types of current
sensors
Operates over a wide temperature
range
Precision voltage reference on-chip
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DESCRIPTION
The SAMES SA9106A Single Phase Watt
measurement integrated circuit has an
integrated Light Emitting Diode (LED) dis-
play driver for a 5 digit (7 segment) display.
The SA9106A performs the power calcu-
lations for active power.
The method of calculation takes the power
factor into account.
The measured power is displayed in Watts
and is updated approximately every 2 sec-
onds, given an average power reading for
this period.
This innovative universal Watt measure-
ment integrated circuit is ideally suited for
the display of the measured power in in-
dustrial and domestic power measurement
and multi plug sockets.
The SA9106A integrated circuit is avail-
able in 40 pin dual-in-line plastic (DIP-40)
as well as 44 pin plastic leaded chip carrier
(PLCC-44) package types.
PIN CONNECTIONS
V SS
V SSA
CIP
CIN
COP
CON
TP7
TP8
IVP
GND
TP11
IIN
IIP
VREF
TP15
CPON
CPOP
CPIN
CPIP
V DDA
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
TP40
TP39
TP38
DIG[5]
DIG[4]
DIG[3]
DIG[2]
DIG[1]
DIG[0]
OSC1
OSC2
G
F
E
D
C
B
A
TP22
V DD
DR-00235
Package: DIP-40
1/14
4008
PDS039-SA9106A-001
REV. D
10-08-1995
SAMES [ SAMES ]
