EM19101
8-BIT 5 MSPS A/D CONVERTER (CMOS)
OUTPUT CODING
Step
Analog Input (V)
Digital Output Code
Conditions
0
1
2
....
0.607815
0.607815~0.6156250
0.6156250~0.6234375
....
00000000
00000001
00000010
....
VRB=0.6V
VRT=2.6V
1LSB=7.8125mV
124
125
....
1.6000000~1.6078125
1.6078125~1.6156250
....
10000000
10000001
....
254
255
2.5843750~2.5921875
2.5921875~
11111110
11111111
ABSOLUTE MAXIMUM RATINGS (TA=25°C)
Items
Sym.
Rating
Unit
Supply voltage
Operating temperature
Input voltage
VDD
TOPR
VIN
7
V
°C
V
-20 to +65
VSS to VDD
VSS to VDD
Ref, Input voltage
VRT,VRB
V
Recommended Poerating Conditions
Items
Sym.
Rating
Unit
Supply voltage
AVDD,AVSS
DVDD,DVSS
|DGND-AGND|
VRB
VRT
VRT - VRB
VIN
4.75 TO 5.25
V
0 to 100
0 and above
VDD and below
1.0 to 3.0
mV
V
V
V
V
Reference input voltage
Analog input voltage
VRB to VRT
(FC=5MPS,VDD=5V,VRB=0.5V,VRT=2.5V,Ta=25°C External clock duty=40 to 60%)
Parameter
Maximum Conversion Speed
Supply current
Reference pin current
Analog input bandwidth
Analog input capacitance
Reference resistance
Internal bias
Sym.
FC
IDD
IREF
BW
CIN
RREF
VRB
Conditions
Vin=0.6V to 2.6V fin=1kHz ramp
FC=5MSPS NTSC ramp wave input
Min. Typ. Max. Unit
5
10
8.0 9.1
1
MSPS
mA
mA
MHz
pF
15
5.7
VIN=1.5V+0.07Vrms
Short VRB and VRBS
11
220 250 350
0.55 0.6 0.65
Ω
V
VRT-VRB Short VRT and VRTS
1.9
-10
0
2.0 2.1
-35 -60 mV
Offset Voltage
EOT
EOB
VIH
VIL
15
45
Digital input voltage
Digital input current
4.0
V
1.0
5
IIH
IIL
VDD=max.
VIH=VDD
VIL=0V
uA
5
* This specification are subject to be changed without notice.
4.23.1997
3
ELAN [ ELAN MICROELECTRONICS CORP ]
