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MC145053D-MC145053P
10-Bit A/D Converter a Serial Interface
- -
CMOSThis 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. 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 Direct Interface to Motorola SPI and National MICROWIRE Serial Data
Ports 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
BLOCK DIAGRAM2
VAGVref
INTERNAL
TEST
VOLTAGES
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
Din
Dout
SCLK
EOC
MUX OUT
MICROWIRE is a trademark of National Semiconductor Corp.
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by MC145053/D-
SEMICONDUCTOR TECHNICAL DATA
