ILA19002
I
I
= Input current for current input (16µA
RMS
at rated)
I
V
= Input current for voltage input (14µA
RMS
at rated)
I
R
= Reference current (typically 50µA)
XTAL is a colour burst TV crystal (f = 3.5795 MHz) for the oscillator. The oscillator
frequency is divided down to 1.7897 MHz on-chip, to supply the digital circuitry and the A/D
converters.
Figure 1: Application Circuit using a Shunt Resistor for Current Sensing.
LOAD
R6
R
S
H
R3
R2
R1
1
2
3
4
5
6
7
14
13
12
11
10
9
8
R4
R11
IC-1
C11
LED
R5
XTAL
C15
1
2
IC-2
6
NC
5
4
R7
NC
3
D1
C13
C14
SUPPLY
D2
R9
ZD1
ZD2
R10
C9
C10
R8
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Belarus
Fax:
+375 (17) 278 28 22,
9
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212 69 16
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