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NJU9252P PDF даташит

Спецификация NJU9252P изготовлена ​​​​«JRC» и имеет функцию, называемую «A/D Converters / DIP18 / DMP20».

Детали детали

Номер произв NJU9252P
Описание A/D Converters / DIP18 / DMP20
Производители JRC
логотип JRC логотип 

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NJU9252P Даташит, Описание, Даташиты
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NJU9252P
2-DIGIT SINGLE CHIP A/D CONVERTER
sGENERAL DESCRIPTION
The NJU9252P is a low operating current, high
performance 2-digit single chip A/D converter containing a
sample/hold circuit, an oscillator, a 7-segment decoder, LED
display driver and a control circuit. The LED display
changes by the high-speed sampling rate of 4 times/s (typ).
The NJU9252P realizes to apply with few external
components, therefore it is most suited for digital meters,
digital thermometers and the others.
sPACKAGE OUTLINE
NJU9252PD
sFEATURES
q8bit Resolution, Successive Approximation Method
qLow Input Current ( 1µA typ )
qDynamic LED direct drive
qSampling-rate ( 4 times/s typ )
qSample/Hold Circuit On-Die
qCR Oscillation Circuit On-Die
qPower-on Initialization
qOffset Adjustment Terminal
qLow operating current
qApplicable with Few External Components
qC-MOS technology
qPackage
DIP18/DMP20
NJU9252PM
sPAD LOCATION
DIP18
SEG D
SEG C
SEG B
SEG A
SEG F
SEG G
SEG E
COM1
VSS
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
VDD
VREF
INH
INL
INR
OFFSET 2
OFFSET 1
TEST
COM2
SEG D
SEG C
SEG B
SEG A
SEG F
SEG G
SEG E
NC
COM1
VSS
DMP20
1 20
2 19
3 18
4 17
5 16
6 15
7 14
8 13
9 12
10 11
VDD
VREF
INH
INL
INR
OFFSET 2
OFFSET 1
NC
TEST
COM2









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NJU9252P Даташит, Описание, Даташиты
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sBLOCK DIAGRAM
NJU9252P
INH
INL
INR
OFFSET 1
OFFSET 2
VREF
VDD
VSS
DIF
AMP
SAMPLE
& HOLD
COMP
BIN SEGMENT
BCD DECODER
LATCH
POW ER
ON
RESET
DAC
SHIFT
REGISTER
DIV LAT
MULTI
PLEXER
OSC
CLOCK
COMMON
DRIVER
SEGMENT
DRIVER
TEST
COM 1 2
(Nch OPEN
DRAIN)
SEG A B C D E F G
(Pch OPEN
DRAIN)
sTERMINAL DESCRIPTION
SYMBOL
FUNCTION
SEG D
LED Segment Driver D output ( Pch open-drain )
SEG C
LED Segment Driver C output ( Pch open-drain )
SEG B
LED Segment Driver B output ( Pch open-drain )
SEG A
LED Segment Driver A output ( Pch open-drain )
SEG F
LED Segment Driver F output ( Pch open-drain )
SEG G
LED Segment Driver G output ( Pch open-drain )
SEG E
LED Segment Driver E output ( Pch open-drain )
COM1
LED Common Driver output 1 ( Nch open-drain )
VSS
COM2
GND
LED Common Driver output 2 ( Nch open-drain )
TEST
Test Terminal
OFFSET 1 Offset Adjustment Terminal 1
OFFSET 2 Offset Adjustment Terminal 2
INR Input Gain setup Resistor Connecting Terminal
INL Analog Differential Input ( Lo )
INH Analog Differential Input ( Hi )
VREF
VDD
NC
Reference Voltage
Supply Voltage
Non Connection









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NJU9252P Даташит, Описание, Даташиты
NJU9252P
www.DataSheet4U.com
sABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATING
(Ta=25°C)
UNIT
Supply Voltage
VDD
-0.3 to +7.0
V
Analog Input Voltage
VIN
GND to VREF
V
Reference Input Voltage
VREF
GND to VDD
V
Power Dissipation
PD 500 mW
Operating Temperature Range Topr
-20 to +75
°C
Storage Temperature Range
Tstg
-40 to +125
°C
Note1) The input current is limited to ±100µA when the input voltage is more than supply voltage.
sELECTRICAL CHARACTERISTICS
(VDD=5V, Ta=25°C)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNIT
Operating Voltage
Ratiometric Reading
VDD
N99
VIN=2.475V, VREF=3.2V
4.5 5.0 5.5
V
98 98/99 99 Counts
Linearity
DL Full Scale=2.475V
Note2)
±0.5 ±2 LSB
Offset
Noise ( P-P Value )
EOFF
VNI
VREF=3.2V
VIN=0.0V
Full Scale=2.475V
Note3)
±1 ±2 LSB
30 µV
Leakage Current
Zero Reading Drift
IL VIN=0.0V
ZD
VIN=0.0V, VREF=3.2V,
-20<Ta<+75°C
1 5 µA
0.2 1 µV/°C
Scale Factor
Temperature Coefficient
Ftemp
VIN=2.475V, VREF=3.2V,
-20<Ta<+75°C (Ext.ref, 0ppm/°C)
1
5
ppm
/°C
Sampling-rate
Ts
3 4 5 times/s
Operating Current
Segment Sink Current
IDD VIN=0.0V
IS1
Segment Voltage=3V
SEG A to SEG G Terminals
IS2
Segment Voltage=3V
COM1, COM2 Terminals
0.8 1.8 mA
10 14
mA
70 98
mA
Note2) Linearity indicates an error of the input-output linearity characteristics getting with the two read data of
zero and full scale input values.
Note3) The peak value of noise must be kept within this value during 95% period in the measurement time.










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