TLC1549C_14 Datasheet, PDF (13/18 Pages) Texas Instruments – 10-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL

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1111111110
See Notes A and B
1111111101
TLC1549C, TLC1549I, TLC1549M
10-BIT ANALOG-TO-DIGITAL CONVERTERS
WITH SERIAL CONTROL
SLAS059C – DECEMBER 1992 – REVISED MARCH 1995
APPLICATION INFORMATION
1023
1022
1021
VFS
1000000001
1000000000
0111111111
VZT =VZS + 1/2 LSB
VFT = VFS – 1/2 LSB
513
512
511
VZS
0000000010
2
0000000001
1
0000000000
0
0.0048 0.0096
2.4528 2.4576 2.4624
0
4.9056 4.9104 4.9152
VI – Analog Input Voltage – V
NOTES: A. This curve is based on the assumption that Vref ₊ and Vref _– have been adjusted so that the voltage at the transition from digital 0
to 1 (VZT) is 0.0024 V and the transition to full scale (VFT) is 4.908 V. 1 LSB = 4.8 mV.
B. The full-scale value (VFS) is the step whose nominal midstep value has the highest absolute value. The zero-scale value (VZS) is
the step whose nominal midstep value equals zero.
Figure 12. Ideal Conversion Characteristics
Analog Input
5-V DC Regulated
To Source
Ground
TLC1549
ANALOG IN
CS
I/O CLOCK
DATA OUT
REF+
REF –
GND
Processor
Figure 13. Typical Serial Interface
Control
Circuit
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