TLC2543C, TLC2543I, TLC2543M
12-BIT ANALOG-TO-DIGITAL CONVERTERS
WITH SERIAL CONTROL AND 11 ANALOG INPUTS
SLAS079D – DECEMBER 1993 – REVISED MAY 1997
PARAMETER MEASUREMENT INFORMATION
15 V
50
Ω
C1
10
µF
C2
0.1
µF
C3
470 pF
TLC2543
AIN0 – AIN10
C3
470 pF
50
Ω
– 15 V
LOCATION
U1
C1
C2
C3
DESCRIPTION
OP27
10-µF 35-V tantalum capacitor
0.1-µF ceramic NPO SMD capacitor
470-pF porcelain Hi-Q SMD capacitor
PART NUMBER
—
—
AVX 12105C104KA105 or equivalent
Johanson 201S420471JG4L or equivalent
VI
C1
10
µF
C2
0.1
µF
_
U1
+
10
Ω
Figure 1. Analog Input Buffer to Analog Inputs AIN0 – AIN10
Test Point
VCC
RL = 2.18 kΩ
EOC
12 kΩ
DATA OUT
12 kΩ
Test Point
VCC
RL = 2.18 kΩ
CL = 50 pF
CL = 100 pF
Figure 2. Load Circuits
Data
Valid
2V
CS
tPZH, tPZL
2.4 V
DATA
OUT
0.4 V
0.8 V
tPHZ, tPLZ
90%
10%
I/O CLOCK
0.8 V
DATA INPUT
2V
0.8 V
tsu(A)
th(A)
Figure 3. DATA OUT to Hi-Z Voltage Waveforms
Figure 4. DATA INPUT and I/O CLOCK
Voltage Waveforms
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
7
TI [ TEXAS INSTRUMENTS ]
