NJRC NJM2342

NJM2342
QUAD BUFFER for REFERENCE CIRCUIT IC
■GENERAL DESCRIPTION
■PACKAGE OUTLINE
The NJM2342 is a 4 channel buffer IC packaged in the small TVSP 10.
The NJM2342 provides buffered voltage from the external input voltage.
The sink-source output configuration effectively absorbs transient
response of load changes.
Therefore, it is suitable for reference voltage generation for Video DAC,
LCD bias voltage and other applications where transient response becomes
an issue.
■FEATURES
●Quad Buffer internal
●Sink/Source Output
●Offset Voltage
●Operating Voltage
●Quiescent Current
●Bipolar Technology
●Package Outline
NJM2342RB2
TVSP10
Vio=1mV typ.
3V to 14V
1mA typ.
TVSP10
■PIN CONFIGURATION
1
10
A
D
2
9
3
8
4
7
B
C
5
6
PIN FUNCTION
1. A OUTPUT
2. A +INPUT
3. V+
4. B +INPUT
5. B OUTPUT
6. C OUTPUT
7. C +INPUT
8. GND
9. D +INPUT
10. D OUTPUT
NJM2342RB2
Ver.2003-06-30
-1-
NJM2342
■ABSOLUTE MAXIMUM RATINGS (Ta=25°C)
PARAMETER
SYMBOL
Supply Voltage
V+
Common Mode Input Voltage
VIC
Power Dissipation
PD
Operating Temperature Range
TOPR
Storage Temperature Range
TSTG
MAXIMUM RATINGS
15
-0.3 ∼ +14 (note1)
320
-40 ∼ +85
-50 ∼ +125
UNIT
V
V
mW
°C
°C
(note1) When the supply voltage is less than 14V,
the absolute maximum input voltage is equal to the supply voltage.
■ELECTRICAL CHARACTERISTICS (V+=5V,Ta=25°C)
PARAMETER
SYMBOL
TEST CONDITION
+
(note2)
Operating Voltage
V
Output Offset Voltage
VOS
Input Bias Current
IB
Lord Regulation 1
∆V1
VIN+=2.5V, ISOURCE=0 to 30mA
Lord Regulation 2
∆V2
VIN+=2.5V, ISINK=0 to 15mA
Input Common Mode
VICM
ISOURCE=, ISINK=12mA
Voltage Range
Common Mode Rejection Ratio
VIN+=1 to 3.2V
CMR
Supply Voltage Rejection Ratio
SVR
V+=3V to 14V
Operating Current
ICC
RL=∞
Slew Rate
SR
RL=2kΩ, f=1kHz
MIN.
3
–
–
–
–
1 ∼ 3.2
TYP.
–
1
20
0.2
0.5
MAX.
14
5
150
15
15
UNIT
V
mV
nA
mV
mV
–
–
V
–
–
–
–
85
100
1.0
0.7
–
–
2.0
–
dB
dB
mA
V/us
(note2) Input common mode voltage range case to when operating low voltage.
■TEST CIRCUITS
V+
A
ICC
VOS V
OUTPUT
+INPUT
1/2V+
V VOUT
V+
ISOURCE
OUTPUT
+INPUT
V
-2-
ISINK
VOUT
Ver.2003-06-30
NJM2342
■ TYPICAL APPLICATIONS
VOUT1
VIN
NJM2342
RS
R1
R
VOUT2
R
VOUT3
R
VOUT4
R
VOUT5
IC
R2
IC is Shunt Regulator.
VREF=2.5V
NJM431
NJM2380/A
NJM2390/A
VREF=1.25V
NJM2373/A
NJM2376
NJM2820/21/22
R
■TYPICAL CHARACTERISTICS
Operating Current vs. Operating Voltage
Operating Current ICC (mA)
2
+
IN
+
1.5
1
0.5
0
0
Ver.2003-06-30
Output Offset Voltage vs. Operating Voltage
o
=1/2V , Ta=25 C)
5
10
+
Operating Voltage V (V)
15
Output Offset Voltage VOS (mV)
(V
(V
6
+
IN
=1/2V+, Ta=25oC)
4
2
Dch
Cch
0
-2
Ach
Bch
-4
-6
4
6
8
10
12
+
Operating Voltage V (V)
14
-3-
NJM2342
■TYPICAL CHARACTERISTICS
Input Bias Current vs. Operating Voltage
(V
Input Bias Current IB (nA)
20
18
+
IN
=1/2V+, Ta=25oC)
Dch
Ach
16
14
Cch
Bch
12
10
4
6
8
10
12
+
Operating Voltage V (V)
Load Regulation 1 vs. Source Current
Load Regulation 1 ∆V1 (mV)
0
-0.5
Cch
Ach
Dch
-1
Bch
-2
-2.5
0
5
(V+=5V, V
IN
3
-1.5
-3
Load Regulation 2 vs. Sink Current
Ta=25oC)
Load Regulation 2 ∆V2 (mV)
+
=2.5V,
IN
(V+=5V, V
10 15 20 25 30 35
Source Current ISOURCE (mA)
40
1.5
Ach
1
0.5
0
Bch
Cch
0
Output Voltage VO (V)
Output Voltage VO (V)
+
VIN =3.0V
2.5
2
-4-
V
IN
0
5
=2.5V
10 15 20 25 30 35
Source Current ISOURCE (mA)
30
40
+
=1.0V
1
+
V =0.8V
IN
+
VIN =0.7V
0.5
+
10
15
20
25
Sink Current ISINK (mA)
1.5
3
IN
5
(V+=5V, Ta=25oC)
2
+
V
Dch
Output Voltage vs. Sink Current
VIN =3.5V
3.5
=2.5V, Ta=25oC)
2
o
(V =5V, Ta=25 C)
4
+
2.5
Output Voltage vs. Source Current
+
14
0
0
5
10
15
Sink Current ISINK (mA)
20
Ver.2003-06-30
NJM2342
■TYPICAL CHARACTERISTICS
Output Offset Voltage vs. Temperature
Operating Current vs. Temperature
+
(V =5V, V
2.5
2
1.5
1
0.5
0
-50
-25
+
+
=2.5V)
Output Offset Voltage VOS (mV)
IN
3
Operating Current ICC (mA)
+
0
25 50 75 100 125
o
Temperature Ta ( C)
(V =5V, V
IN
6
=2.5V)
4
2
Dch
Cch
0
-2
Ach
Bch
-4
-6
-50
-25
0
25
50
75
100 125
o
Temperature Ta ( C)
ICM
Input Common Mode Voltage Range
(V)
V
Input Common Mode Voltage Range vs. Temperature
(V+=5V)
5
4
ISOURCE=12mA
3
Input Common Mode
Voltage Range
2
1
0
-50
ISINK =12mA
-25
0
25 50 75 100 125
o
Temperature Ta ( C)
Source Current vs. Temperature
+
(V =5V, V
IN
50
40
30
20
10
Ver.2003-06-30
+
=2.5V)
60
0
-50
Sink Current vs. Temperature
-25
0
25 50 75 100 125
o
Temperature Ta ( C)
(V =5V, V
IN
70
Sink Current ISINK (mA)
Source Current ISOURCE (mA)
70
+
+
=2.5V)
60
50
40
30
20
10
0
-50
-25
0
25 50 75 100 125
o
Temperature Ta ( C)
-5-
NJM2342
MEMO
[CAUTION]
The specifications on this databook are only
given for information , without any guarantee
as regards either mistakes or omissions. The
application circuits in this databook are
described only to show representative usages
of the product and not intended for the
guarantee or permission of any right including
the industrial rights.
-6-
Ver.2003-06-30