M30622M4 MITSUBISHI [Mitsubishi Electric Semiconductor], M30622M4 Datasheet - Page 161

no-image

M30622M4

Manufacturer Part Number
M30622M4
Description
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Manufacturer
MITSUBISHI [Mitsubishi Electric Semiconductor]
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
M30622M4A-462GP D3
Manufacturer:
RENESAS
Quantity:
1 000
Part Number:
M30622M4A-462GP D3
Manufacturer:
RENESAS/瑞萨
Quantity:
20 000
A-D Converter
Figure 1.20.9. Example of external op-amp connection mode
(a) Sample and hold
(b) Extended analog input pins
(c) External operation amp connection mode
Sample and hold is selected by setting bit 0 of the A-D control register 2 (address 03D4
sample and hold is selected, the rate of conversion of each pin increases. As a result, a 28 f
achieved with 8-bit resolution and 33 f
modes. However, in all modes, be sure to specify before starting A-D conversion whether sample and
hold is to be used.
In one-shot mode and repeat mode, the input via the extended analog input pins ANEX0 and ANEX1 can
also be converted from analog to digital.
When bit 6 of the A-D control register 1 (address 03D7
converted from analog to digital. The result of conversion is stored in A-D register 0.
When bit 6 of the A-D control register 1 (address 03D7
converted from analog to digital. The result of conversion is stored in A-D register 1.
In this mode, multiple external analog inputs via the extended analog input pins, ANEX0 and ANEX1, can
be amplified together by just one operation amp and used as the input for A-D conversion.
When bit 6 of the A-D control register 1 (address 03D7
output from ANEX0. The input from ANEX1 is converted from analog to digital and the result stored in the
corresponding A-D register. The speed of A-D conversion depends on the response of the external op-
eration amp. Do not connect the ANEX0 and ANEX1 pins directly. Figure 1.20.9 is an example of how to
connect the pins in external operation amp mode.
Analog
input
External op-amp
ANEX0
ANEX1
AN
AN
AN
AN
AN
AN
AN
AN
0
1
2
3
4
5
6
7
AD
with 10-bit resolution. Sample and hold can be selected in all
Successive conversion register
Resistor ladder
16
) is “1” and bit 7 is “1”, input via AN
16
16
) is “1” and bit 7 is “0”, input via ANEX0 is
) is “0” and bit 7 is “1”, input via ANEX1 is
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Comparator
Mitsubishi microcomputers
M16C / 62 Group
16
) to “1”. When
0
AD
to AN
cycle is
7
is
161

Related parts for M30622M4