m62301sp Mitsumi Electronics, Corp., m62301sp Datasheet

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m62301sp

Manufacturer Part Number
m62301sp
Description
10~12-bit 4ch Integrating A-d Converter
Manufacturer
Mitsumi Electronics, Corp.
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
M62301SP
Manufacturer:
NEC
Quantity:
246
Part Number:
M62301SP
Manufacturer:
MITSUBISHI
Quantity:
20 000
DESCRIPTION
M62301 semiconductor integrated circuit forms an integrating
A-D converter,being connected to a microcomputer unit.By
using selection signals and counter clock signals from the
unit,a 10~12-bit A-D converter can be created at a low cost.
option by changing external parameters.In addition,the built-in
circuit offset,delay time and temperature fluctuation are
adjustable,enabling a wide range of applications.
reference voltage(1.22V)generator,current supply and
comparator for integration,and voltage-monitoring reset circuit
for a 5V power supply.It is also equipped with girdling to
prevent current leak from integration capacitor.
FEATURES
•Separate power supplies for analog section and digital section.
•Low power dissipation.....................................2mA(typ)
•Linear error......................................................±0.02%(typ)
•Conversion time...............................................526µs/ch(typ)
•Built-in system reset.........................................4.45V(typ)
APPLICATION
High-precision control systems such as temperature control
and speed control
The integration time and resolution can be set at the user‘s
M62301 has a 3 input decoder circuit,high-precision
(1mA for A-D conversion and the other 1mA for reset)
BLOCK DIAGRAM
REFERENCE
INPUT
REFERENCE
VOLTAGE
A2
A3
A1
A4
19
18
15
13
17
16
V
1.22V
REF
GIRDLING 1
V
GND
A2
A3
A4
A1
REF
7
INTEGRATING
CAPACITOR
8
0.49V
GIRDLING 2
9
CONSTANT
CURRENT
CONTROL
DISCHARGE
C0 C1 C2
12
2
DECODER
10~12-BIT 4CH INTEGRATING A-D CONVERTER
MITSUBISHI
0.36V
+
+
-
-
ELECTRIC
3
4
ANALOG
Vcc
PIN CONFIGURATION (TOP VIEW)
11
Vcc FOR RESET
ANALOG GND
GIRDLING 2
GIRDLING 1
ANALOG
GND
INTEGRATING
CAPACITOR
+
-
10
RESET
MITSUBISHI<Dig.Ana.INTERFACE>
DELAY
CIRCUIT
150µs
M62301SP,FP
INT
C0
C1
C2
DIGITAL
GND
20
Outline 20P4B(SP)
10
1
2
3
4
5
6
7
8
9
14
DIGITAL
V
DD
20P2N-A(FP)
1
6
5
RESET
Vcc FOR RESET
INT
20
19
18
17
16
15
14
13
12
11
(
CONSTANT CURRENT
CONTROL
ANALOG Vcc
A1
A2
A3
A4
DIGITAL V
DIGITAL GND
REFERENCE INPUT
REFERENCE
VOLTAGE
1
/ 9 )
DD

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m62301sp Summary of contents

Page 1

... ANALOG GND ANALOG CONSTANT Vcc CURRENT ANALOG CONTROL GND 0.49V + - 0.36V + DISCHARGE - DECODER GIRDLING 2 MITSUBISHI ELECTRIC M62301SP,FP DIGITAL GND INT 5 16 REFERENCE INPUT 6 15 DIGITAL REFERENCE 8 13 ...

Page 2

... Resistance to determine charge current I Output current I o Note 1.Maximum analog input voltage is less than the difference between Vcc-2.5V as well REF *Charging current MITSUBISHI<Dig.Ana.INTERFACE> M62301SP,FP 10~12-BIT 4CH INTEGRATING A-D CONVERTER Conditions Limits Min Typ 8.0 4.5 5.0 4.5 No more than(Vcc-2.5V) 0 and V No more than(Vcc-2.5V) ...

Page 3

... Note 1.Conversion error;Deviation from the line that links the “0“ scale point (mode 0) and reference scale point (mode 3. V with all channels. Note 2.Linear error;Deviation from the line that links the 0-V input point and 2.5V input point on a given channel. MITSUBISHI<Dig.Ana.INTERFACE> M62301SP,FP 10~12-BIT 4CH INTEGRATING A-D CONVERTER =5.0V,Ta=25°C, unless otherwise noted) DD ...

Page 4

... Note. To ensure discharge from capacitor the above diagram should stay in mode 1 at least for the and REF period calculated above: Tdi=( not necessary to measure T channel. MITSUBISHI ELECTRIC MITSUBISHI<Dig.Ana.INTERFACE> M62301SP, performed.None of these operations ...

Page 5

... RESET output status becomes "L".If voltage increases over 4.50V,the RESET status becomes "H" within 150µsec. MITSUBISHI<Dig.Ana.INTERFACE> 10~12-BIT 4CH INTEGRATING A-D CONVERTER V 50mA OUTPUT UNSETTLED MITSUBISHI ELECTRIC M62301SP, REF 1.22V ...

Page 6

... R 24k I . 1.22V = = . 50µA I 24k MITSUBISHI ELECTRIC MITSUBISHI<Dig.Ana.INTERFACE> M62301SP,FP C :To stabilize reference voltage, REF be sure to connect capacitance of approximately 4700pF. C :We suggest that this capacitance INT be connected to prevent malfunction due to noise. Use C that leaks as slight current I as possible.To prevent leak to the ...

Page 7

... V max+0. 1mA max is 5V. IA MITSUBISHI ELECTRIC MITSUBISHI<Dig.Ana.INTERFACE> M62301SP,FP C :To stabilize reference voltage, REF be sure to connect capacitance of approximately 4700pF. C :We suggest that this capacitance INT be connected to prevent malfunction due to noise. Use CI that leaks as slight current as possible.To prevent leak to the ...

Page 8

... INTEGRATING A-D CONVERTER 2.0 1.0 100 125 0.05 0.04 0.03 0.02 0. (OSR) INT OUTPUT VS.AMBIENT TEMPERATURE 200 100 1 10 INT (mA) O MITSUBISHI ELECTRIC MITSUBISHI<Dig.Ana.INTERFACE> M62301SP,FP ANALOG PART SUPPLY CURRENT VS.SUPPLY VOLTAGE ANALOG Vcc (V) LINEAR ERROR RI=24k RI=12k 0 2.0 2.5 1.0 0 (FSR) ANALOG INPUT RANGE VIA( -20 0 ...

Page 9

... ORE LIMIT RESET VOLTAGE 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 R =2.2k L 0.4 R =100k L 0 0.6 1.0 2.0 RESET VOLTAGE Vcc V (V) RE MITSUBISHI<Dig.Ana.INTERFACE> M62301SP,FP 10~12-BIT 4CH INTEGRATING A-D CONVERTER DETECTION VOLTAGE vs. AMBIENT TEMPERATURE 4.7 4.6 4.5 4.4 4.3 4 -20 AMBIENT TEMPERATURE Ta(°C) DELAY TIME VS.AMBIENT TEMPERATURE 250 200 150 100 -20 AMBIENT TEMPERATURE Ta(°C) MITSUBISHI ELECTRIC ...

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