M16CSLASH62M datasheet(456/615 Pages) RENESAS

456 / 615 page

A-D Converter

Mitsubishi microcomputers

M16C / 62A Group

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

2-139

2.7.14 Internal Equivalent Circuit of Analog Input

Figure 2.7.28 shows the internal equivalent circuit of analog input.

Figure 2.7.28. Internal equivalent circuit to analog input

ON resistor

approx. 2k

A-D successive conversion

Analog input voltage

AVcc

AVss

Chopper-type

amplifier

ADT/A-D conversion

interrupt request

Vcc

Vss

VIN

A-D control register 0

Comparison voltage

Comparison reference voltage (Vref) generator

VREF

AVss

Vref

b2 b1 b0

Vcc

Vss

AN i

Wiring resistor

approx. 0.2k

ON resistor

approx. 0.6k

SW2

Sampling

control signal

SW1

C = Approx. 3.0pF

SW3

SW4

AMP

ON resistor,

approx. 5k

SW2

Reference control

signal

Resistor

ladder

Control signal

for SW2

Control signal

for SW3

Connect to

Comparison

Connect to

Sampling

i ladder-type

switches

i ladder-type wiring

resistors

ON resistor

approx. 0.6k

AN0

Parasitic

diode

SW1

SW1 conducts only on the ports selected for analog input.

SW2 and SW3 are open when A-D conversion is not in

progress; their status varies as shown by the waveforms in

the diagrams on the left.

SW4 conducts only when A-D conversion is not in progress.

Parasitic

diode

Warning: Use only as a standard for designing this data.

Mass production may cause some changes in device characteristics.

(i = 10)

Ω

M16C/62M bảng dữ liệu(PDF) 456 Page - Renesas Technology Corp

M16C/62M bảng dữ liệu(HTML) 456 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

bảng dữ liệu tải về

Link URL