Order this document
by MC145053/D
SEMICONDUCTOR TECHNICAL DATA
P SUFFIX
PLASTIC
CASE 646
CMOS
This ratiometric 10-bit ADC has a serial interface port to provide communi-
cation with MCUs and MPUs. Either a 10- or 16-bit format can be used. The
16-bit format can be one continuous 16-bit stream or two intermittent 8-bit
streams. The converter operates from a single power supply with no external
trimming required. Reference voltages down to 4.0 V are accommodated.
The MC145053 has an internal clock oscillator to operate the dynamic A/D
conversion sequence and an end-of-conversion (EOC) output.
D SUFFIX
SOG
CASE 751A
ORDERING INFORMATION
•
•
•
•
•
•
•
5 Analog Input Channels with Internal Sample-and-Hold
Operating Temperature Range: – 40 to 125° C
Successive Approximation Conversion Time: 44 µs Maximum
Maximum Sample Rate: 20.4 ks/s
Analog Input Range with 5-Volt Supply: 0 to 5 V
Monotonic with No Missing Codes
MC145053P
MC145053D
Plastic DIP
SOG Package
Direct Interface to Motorola SPI and National MICROWIRE Serial Data
Ports
PIN ASSIGNMENT
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•
Digital Inputs/Outputs are TTL, NMOS, and CMOS Compatible
Low Power Consumption: 14 mW
Chip Complexity: 1630 Elements (FETs, Capacitors, etc.)
See Application Note AN1062 for Operation with QSPI
EOC
1
14
13
V
DD
SCLK
AN0
AN1
AN2
AN3
2
3
4
5
12
11
10
D
D
in
out
CS
AN4
6
7
9
8
V
ref
BLOCK DIAGRAM
V
V
SS
AG
V
V
AG
ref
9
8
MUX OUT
10-BIT RC DAC
WITH SAMPLE AND HOLD
SUCCESSIVE APPROXIMATION
REGISTER
2
3
4
5
6
AN0
PIN 14 = V
PIN 7 = V
AN1
AN2
AN3
AN4
DD
SS
ANALOG
MUX
MUX ADDRESS
REGISTER
INTERNAL
TEST
VOLTAGES
AN5
AN6
AN7
12
11
D
in
DATA REGISTER
D
out
AUTO-ZEROED
COMPARATOR
10
13
CS
DIGITAL CONTROL
LOGIC
SCLK
1
EOC
MICROWIRE is a trademark of National Semiconductor Corp.
REV 2
1/99
MC145053
1
MOTOROLA WIRELESS SEMICONDUCTOR
SOLUTIONS DEVICE DATA
Motorola, Inc. 1998
MOTOROLA [ MOTOROLA ]
