
TS8388BFS
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Preliminary Beta Site
3.7.
FUNCTIONS DESCRIPTION
Name
Function
VCC
Positive power supply
VEE
Analog negative power supply
VPLUSD
Digital positive power supply
GND
Ground
VIN, VINB
Differential analog inputs
CLK, CLKB
Differential clock inputs
<D0:D7>
<D0B:D7B>
Differential output data port
DR ; DRB
Differential data ready outputs
OR ; ORB
Out of range outputs
GAIN
ADC gain adjust
GORB
Gray or Binary digital output select
DIOD/DRRB
Die junction temp. measurement/
asynchronous data ready reset
VPLUSD = +0 V (ECL)
VPLUSD=+2.4V
(LVDS)
VIN
VINB
CLK
CLKB
D0
→
→ D7
D0B
→
→ D7B
DR
16
VEE=-5V
VCC = +5 V
TS8388B
ORB
GND
GORB
GAIN
OR
DVEE=-5V
D IOD/
DRRB
DRB
3.8.
DIGITAL OUTPUT CODING
NRZ (Non Return to Zero) mode, ideal coding : does not include gain, offset, and linearity voltage errors.
Differential
analog input
Voltage level
Digital output
Out of
Range
Binary
GORB = VCC or floating
Gray
GORB = GND
> +251 mV
> Positive full scale + 1/2 LSB
1 1 1 1 1 1 1 1
1 0 0 0 0 0 0 0
1
+251 mV
+249 mV
Positive full scale + 1/2 LSB
Positive full scale – 1/2 LSB
1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 0
1 0 0 0 0 0 0 0
1 0 0 0 0 0 0 1
0
+126 mV
+124 mV
Positive 1/2 scale + 1/2 LSB
Positive1/2 scale – 1/2 LSB
1 1 0 0 0 0 0 0
1 0 1 1 1 1 1 1
1 0 1 0 0 0 0 0
1 1 1 0 0 0 0 0
0
+1 mV
-1 mV
Bipolar zero + 1/2 LSB
Bipolar zero - 1/2 LSB
1 0 0 0 0 0 0 0
0 1 1 1 1 1 1 1
1 1 0 0 0 0 0 0
0 1 0 0 0 0 0 0
0
-124 mV
-126 mV
Negative 1/2 scale + 1/2 LSB
Negative 1/2 scale - 1/2 LSB
0 1 0 0 0 0 0 0
0 0 1 1 1 1 1 1
0 1 1 0 0 0 0 0
0 0 1 0 0 0 0 0
0
-249 mV
-251 mV
Negative full scale + 1/2 LSB
Negative full scale - 1/2 LSB
0 0 0 0 0 0 0 1
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 1
0 0 0 0 0 0 0 0
0
< -251 mV
< Negative full scale - 1/2 LSB
0 0 0 0 0 0 0 0
1