TLC5502-5M Datasheet, PDF (3/11 Pages) Texas Instruments – 8-BIT ANALOG-TO-DIGITAL CONVERTER

equivalents of analog input circuit
REFT
ANLG
INPUT
ANALOG INPUT
mR†
Vref _′ ^‡
Sample-
and-
Hold
Circuit
ANLG
VDD
REFB
(256−m)R
ANLG
GND
† _{m = comparator position along the resistor string}
ƪ ƫ ^‡
V_refȀ
+
ƪ_VrefT
* V_refB^Æ«
1
*
M
256
) V_refB
equivalent of digital input circuit
TLC5502Ć5M
8ĆBIT ANALOGĆTOĆDIGITAL CONVERTER
SGLS067 − MARCH 1992
ANLG INPUT
SAMPLE AND HOLD
S
H
C
mR†
REFT
C
REFB
(256−m)R
Out 1
Out 2
DGTL VDD
CLK
ANLG
GND
DGTL
GND
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