hi5714 Intersil Corporation, hi5714 Datasheet - Page 8

• Manufacturer Part Number: hi5714
• Description: 8-bit, 40/60/75/80 Msps A/d Converter
• Manufacturer: Intersil Corporation

Pin Descriptions
NOTE:
10. The voltages listed above represent the ideal transition of each output code shown as a function of the reference voltage, including the typical
PIN NUMBER
DESCRIPTION
reference offset voltages.
1, 2, 12-15,
Underflow
Overflow
23, 24
19, 21
CODE
11
16
17
18
20
22
254
255
4
6
7
8
9
0
1
-
-
V
CCO1
SYMBOL
D0 to D7
DGND
OGND
AGND
INPUT VOLTAGE
V
V
O/UF
V
CLK
V
V
OE
CCA
CCD
RB
RT
, V
IN
8
V
V
(NOTE 1)
RB
<1.555V
>3.300V
RT
CCO2
1.555V
3.300V
= 3.6V
= 1.3V
-
-
-
-
OE
1
0
Digital Outputs, D0 (LSB) to D7 (MSB).
Bottom Reference Voltage Input. Range: 1.2V to 1.6V.
Analog Ground.
Analog +5V.
Analog Input.
Top Reference Voltage Input. Range: 3.5V to 3.9V.
Underflow/Overflow Digital Output. Goes high if the analog input goes above or below the
reference (V
Clock Input.
Digital GND.
Digital +5V.
Digital +5V for Digital Output Stage.
Digital Ground for Digital Output Stage.
Output Enable
High: Digital outputs are three-stated.
Low: Digital outputs are active.
High Impedance
Active: Binary
TABLE 2. MODE SELECTION
TABLE 1. A/D CODE TABLE
RB
, V
D7 to D0
O/UF
RT
HI5714
1
0
0
0
0
0
0
1
) minus the offset.
D7
0
0
1
1
1
-
-
-
High Impedance
Active
DESCRIPTION
D6
0
0
1
1
1
-
-
-
O/UF
D5
BINARY OUTPUT CODE
0
0
1
1
1
-
-
-
D4
0
0
1
1
1
-
-
-
D3
0
0
1
1
1
-
-
-
D2
0
0
1
1
1
-
-
-
D1
0
0
1
1
1
-
-
-
D0
0
0
0
1
1
-
-
-