MC145053 Motorola, MC145053 Datasheet - Page 12

• Manufacturer Part Number: MC145053
• Description: 10-Bit A/D Converter a Serial Interface
• Manufacturer: Motorola

MC145053
12
Address
$AXXX
$BXXX
$CXXX
$DXXX
$EXXX
$0XXX
$1XXX
$2XXX
$3XXX
$4XXX
$5XXX
$6XXX
$7XXX
$8XXX
$9XXX
$FXXX
in Hex
Table 2. Programmer’s Guide for 16-Bit Transfers:
Input
REFERENCE
CIRCUIT
5 VOLT
Converted Next
Channel to be
None
None
None
None
None
None
None
None
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
Input Code
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Not Allowed
Not Allowed
Not Allowed
Not Allowed
Not Allowed
Not Allowed
Half Scale Test: Output = $8000
Zero Test: Output = $0000
Full Scale Test: Output = $FFC0
Not Allowed
Not Allowed
Comment
SENSORS,
ANALOG
ETC.
Figure 15. Example Application
0.22 F
V AG
V ref
AN0
AN1
AN2
AN3
AN4
MC145053
Offset Removed
Result Without
Table 3. Programmer’s Guide for 16-Bit Transfers:
ADC
Conversion
V DD
$FFC0
$00C0
$01C0
$02C0
$FF40
$FF80
$0000
$0040
$0080
$0100
$0140
$0180
$0200
$0240
$0280
MOTOROLA WIRELESS SEMICONDUCTOR
+ 5 V
L
V SS
0.1 F
Offset Removed
Output Code
SCLK
D out
EOC
CS
D in
Conversion
Result With
$03FD
$03FE
$0000
$0001
$0002
$0003
$0004
$0005
$0006
$0007
$0008
$0009
$000A
$000B
$03FF
SOLUTIONS DEVICE DATA
L
SPI PORT
Zero
Zero + 1 LSB
Zero + 2 LSBs
Zero + 3 LSBs
Zero + 4 LSBs
Zero + 5 LSBs
Zero + 6 LSBs
Zero + 7 LSBs
Zero + 8 LSBs
Zero + 9 LSBs
Zero + 10 LSBs
Zero + 11 LSBs
L
Full Scale – 2 LSBs
Full Scale – 1 LSB
Full Scale
P
Value