Datasheet

ADS8364
15
SBAS219C
www.ti.com
FIGURE 10. Ideal Conversion Characteristics (Condition: Single-Ended, VCM = chXX– = 2.5V, V
REF
= 2.5V)
FIGURE 11. Reading Data in Cycling Mode.
0111111111111111
0111111111111110
0111111111111101
1000000000000010
1000000000000001
1000000000000000
0000000000000001
0000000000000000
1111111111111111
Binary Two's Complement
BTC
Digital Output Code
VNFS = V
CM
– V
REF
= 0V
0.000038V
0.000076V
0.000152V
2.499962V
2.500038V
VBPZ = 2.5V
Unipolar Analog Input Voltage
1LSB = 76µV
V
CM
= 2.5V
V
REF
= 2.5V
4.999848V
VPFS – 1LSB = 4.999924V
VPFS = V
CM
+ V
REF
= 5V
0
1
2
32767
32768
32769
65533
65534
65535
Step
16-BIT
Bipolar Input, Binary Two’s Complement Output: (BTC)
Negative Full-Scale Code = VNFS = 8000H, Vcode = V
CM
– V
REF
Bipolar Zero Code
Positive Full-Scale Code = VPFS = 7FFFH, Vcode = (V
CM
+ V
REF
) – 1LSB
= VBPZ = 0000H, Vcode = V
CM
CS
RD
BYTE
A0 A1 A1 B0 B0 B1 C0 C1 A0
HIGH
A0
LOW HIGH HIGHLOW LOW
D7 – D0