EM19101
EM19101
8-BIT 5 MSPS A/D CONVERTER (CMOS)
8-BIT 5 MSPS A/D CONVERTER (CMOS)
GENERAL DESCRIPTION
EM19101 is a 8-bit CMOS A/D converter for scanner use. The adoption of a 2-step parallel system achieves low
consumption at a maximum conversion speed of 7 MSPS.
FEATURES
• 7MSPS maximum conversion speed
• Build-in sampling and hold circuit
• Internal self-bias reference voltage
• 45 mW very low power dissipation at 5MSPS
• +5V single power supply
• Available in 24 pin SOP
• Series
EM19101M for 300 mil SOP
EM19101S for 209 mil SOP
APPLICATION
Scanner and a wide range of fields where high speed A/D conversion is required in the digital communication.
PIN ASSIGNMENT
EM19101
OE
DVSS
D0
D1
D2
D3
D4
D5
D6
1
2
3
4
5
6
7
8
DVSS
VRB
VRBS
AVSS
AVSS
VIN
AVDD
VRT
VRTS
AVDD
AVDD
DVDD
24
23
22
21
20
19
18
17
16
15
14
13
9
D7
DVDD
CLK
10
11
12
FUNCTIONAL BLOCK DIAGRAM
DVSS
Reference voltage
24
/OE
DVSS
D0
1
VRB
23
22
2
3
VRBS
Lower
Comparators with
S/ (4bit)
Lower encoder
(4bit)
D1
D2
21 AVSS
4
5
Lower data
latches
H
20
19
18
AVSS
VIN
D3
D4
6
7
8
9
AVDD
D5
D6
17 VRT
Upper data
latches
VRTS
16
Upper
Comparators with
Upper encoder
(4bit)
S/
H (4bit)
D7 10
AVDD
15
14
DVDD
11
AVDD
DVDD
Clock generator
CLK 12
13
* This specification are subject to be changed without notice.
4.23.1997
1
ELAN [ ELAN MICROELECTRONICS CORP ]
