ml2280 Microsemi Corporation, ml2280 Datasheet - Page 2

• Manufacturer Part Number: ml2280
• Description: Serial 8-bit Converters
• Manufacturer: Microsemi Corporation

ML2280, ML2283
PIN CONFIGURATION
PIN DESCRIPTION
NAME
V
DGND
AGND
GND
CH0,
V
V
V+
DO
2
IN
CC
REF/2
+, V
GND
V
Single Differential Input
V
IN
IN
CS
IN
+
–
– ended (V
Positive supply. 5V ± 10%
Digital ground. 0 volts. All digital inputs and
outputs are referenced to this point.
Analog ground. The negative reference voltage
for A/D converter.
Combined analog and digital ground.
Analog inputs. Digitally selected to be single
input. Analog range = GND - V
Reference. The analog input range is twice the
positive reference voltage value applied to this
pin.
Input to the Shunt Regulator.
Data out. Digital output which contains result
of A/D conversion. The serial data is clocked
out on falling edges of CLK.
8-Pin PDIP
1
2
3
4
ML2280
TOP VIEW
FUNCTION
IN
8
7
6
5
) or; V
V
CLK
DO
V
CC
REF/2
IN
+ or V
IN
– of a differential
IN
GND
V
V
- V
IN
IN
CS
+
Single Differential Input
–
CC
.
1
2
3
4
8-Pin SOIC
ML2280
TOP VIEW
8
7
6
5
NAME
SARS
CLK
DI
CS
V
CLK
DO
V
CC
REF/2
Successive approximation register status.
Digital output which indicates that a
conversion is in progress. When SARS goes
to 1, the sampling window is closed and
conversion begins. When SARS goes to 0,
conversion is completed. When CS = 1, SARS
is in high impedance state.
Clock. Digital input which clocks data in on
DI on rising edges and out on DO on falling
edges. Also used to generate clocks for A/D
conversion.
Data input. Digital input which contains serial
data to program the MUX and channel
assignments.
Chip select. Selects the chip for multiplexer
and channel assignment and A/D conversion.
When CS = 1, all digital outputs are in high
impedance state. When CS = 0, normal A/D
conversion takes place.
FUNCTION
DGND
CH0
CH1
CH2
CH3
V+
CS
4-Channel MUX
14-Pin PDIP
1
2
3
4
5
6
7
ML2283
TOP VIEW
10
11
12
13
14
8
9
V
DI
CLK
SARS
DO
V
AGND
CC
REF/2