ML145050
ML145051
10-Bit A/D Converter
with Serial Interface - CMOS
Legacy Device:
Motorola MC145050, MC145051
These ratio metric 10-bit ADCs have serial interface ports to provide
communication 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 converters operate from a single
power supply with no external trimming required. Reference voltages
down to 4.0 V are accommodated.
The ML145050 has the same pin out as the 8-bit ML145040 which
allows an external clock (ADCLK) to operate the dynamic A/D con-
version sequence. The ML145051 has the same pin out as the 8-bit
ML145041 which has an internal clock oscillator and an end-of-con-
version (EOC) output.
• 11 Analog Input Channels with Internal Sample-and-Hold
• Operating Temperature Range: – 40 to 125°C
• Successive Approximation Conversion Time:
ML145050 – 21
µs
(with 2.1 MHz ADCLK)
ML145051 – 44
µs
Maximum
• Maximum Sample Rate:
ML145050 – 38 ks/s
ML145051 – 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
P DIP 20 = RP
PLASTIC
CASE 738
SO 20W = -6P
SOG
CASE 751D
CROSS REFERENCE/ORDERING INFORMATION
MOTOROLA
LANSDALE
PACKAGE
P DIP 20
MC145050P
ML145050RP
SOG 20W
MC145050DW
ML145050-6P
P DIP 20
MC145051P
ML145051RP
SOG 20W
MC145051DW
ML145051-6P
Note:
Lansdale lead free (Pb) product, as it
becomes available, will be identified by a part
number prefix change from
ML
to
MLE.
PIN ASSIGNMENT
*ADCLK (ML145050); EOC (ML145051)
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
AN8
VSS
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
VDD
*
SCLK
Din
Dout
CS
Vref
VAG
AN10
AN9
MICROWARE is A Trademark Of National Semiconductor Corp.
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