M62301SP Datasheet, PDF (5/12 Pages) Mitsubishi Electric Semiconductor – 10~12-BIT 4CH INTEGRATING A-D CONVERTER

M62301SP/FP
(3) Constant current control
Integrating current I_I can be obtained based on the reference voltage (1.22 V) by the built-in high-precision
generator and resistance R_I.
1.22
I_I = _RI
(A) .................... (1)
Integration time T_I can be calculated as follows;
T_I = (V_IN + 0.49)
C_I
I_I
.................. (2)
However, parameters such as built-in comparator offset voltage, analog switch offset, voltage leak current and delay
time are not counted.
V_REF
13
1.22 V
12
R_I
I_I
8
C_I
4.45 V
50 mA
Reset supply voltage
V_RE
0.8 V
t
RESET output
Output
unsettled
T_DE
T_DE
t
When voltage applied to pin V_RE becomes less than 4.45 V, the RESET output status becomes "L". If voltage
increases over 4.50 V, the RESET status becomes "H" within 150 µs.
REJ03D0861-0300 Rev.3.00 Mar 25, 2008
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