LR339 [LRC]
Low Power Low Offset Voltage Quad Comparators; 低功耗低失调电压QUAD比较仪
| 型号： | LR339 |
| 厂家： | 
LESHAN RADIO COMPANY |
| 描述： | Low Power Low Offset Voltage Quad Comparators |
| 文件： | 总6页 (文件大小：134K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LESHAN RADIO COMPANY, LTD.
Low Power Low Offset Voltage
LR339
Quad Comparators
DESCRIPTION:
The LR339 consists of four independent precision
voltage comparators.These were designed specifically
to operate from a signal power supply over a wide range
of voltage.Operation from split power supplies is also
possible and the low power supply current drain is
independent of the magnitude of the power supply
voltage.The LR339 also have a unique characteristic in
that the input common-mode voltage range includes
ground,even though operated from a single power
supply voltage.
DIP-14
SOP-14
FEATURE:
ORDERING INFORMATION
zꢀ Low input biasing current: 25nA(Typ.)
zꢀ Low input offset current: r5.0nA(Typ.)
zꢀ Low output saturation voltage: 130mV
zꢀ Output voltage compatible with TTL,CMOS
Device
LR339
Package
DIP-14
LR339D
SOP-14
PIN CONFIGURATION
BLOCK DIAGRAM
V
CC
− Input
Output
+ Input
1
2
14
13
Output 2
Output 1
Output 3
Output 4
GND
3
12
11
V
CC
4
5
− Input 1
+ Input 1
+ Input 4
*
)
)
*
1
4
10 − Input 4
− Input 2
+ Input 2
6
7
9
8
+ Input 3
− Input 3
*
)
)
*
2
3
GND
NOTE: Diagram shown is for 1 comparator.
(Top View)
1/6
LESHAN RADIO COMPANY, LTD.
LR339
PIN DESCRIPTIONS
No
1
2
3
4
5
6
7
Description
Symbol
OUT2
OUT1
No
8
9
10
11
12
13
14
Description
-Input3
+Input3
-Input4
+Input4
Ground
Output 4
Output 3
Symbol
IN3˄-˅
IN3˄+˅
IN4˄-˅
IN4˄+˅
GND
Output 2
Output 1
Supply Voltage
-Input1
Vcc
IN1˄-˅
IN1˄+˅
IN2˄-˅
IN2˄+˅
+Input1
-Input2
+Input2
OUT4
OUT3
ABSOLUTE MAXIMUM RATINGS
Characteristics
Supply Voltage
Differential Input Voltage
Input Voltage
Symbol
Vcc
VIDR
VICMR
ISC
Value
36 or r18
36
-0.3~Vcc
50
Unit
V
V
V
Input Current
Power Dissipation˄*˅
Operating Temperature Range
Storage Temperature Range
PD
Tamb
Tstg
1.0
0~75
-65~150
W
ć
ć
Note˄*˅˖Powerdissipation reduces 8 mW/°C for using above Ta=25°CDŽ
ELECTRICAL CHARACTERISTICS ˄Unless otherwise specified :Vcc=5VˈTamb=25ć˅
Mi
Characteristics
Test conditions
0ć d Ta d 70ć
Symbol
VIO
Typ.
Max
r5.0
r9.0
r50
Unit
mV
r2.0
Input Offset Voltage
r5.0
Input Offset Current
Input Bias Current
IIO
IIB
nA
nA
V
0ć d Ta d 70ć
0ć d Ta d 70ć
r150
250
25
400
0
0
Vcc-1.5
Vcc-2.0
2.0
Input
Common-mode
Voltage Range
VICR
Icc
0ć d Ta d 70ć
RL=f
RL=fˈVcc=30V
0.8
1.0
Supply Current
Voltage Gain
mA
2.5
RL t 15K:ˈVcc=15V
VIN=TTL Logic SwingˈVREF=1.4Vˈ
VRL=5.0Vˈ RL=5.1K:
Gv
50 200
V/mV
ns
Large Signal Response
Time
tRES
300
Response Time
VRL=5.0Vˈ RL=5.1K:
tRES
VID
1.3
ns
V
Input Differential Voltage
Output Sink Current
Vcc
VIN˄-˅t 1.0VˈVIN˄+˅=0VˈVo d 1.5V
VIN˄-˅t 1.0VˈVIN˄+˅=0VˈISINK d 4.0mA
VIN˄-˅t 1.0VˈVIN˄+˅=0VˈISINK d
ISINK
6.0
16
mA
130
400
700
output saturation voltage
VSAT
mV
VIN˄+˅t 1.0VˈVIN˄-˅=0VˈVo=5.0V
VIN˄+˅t 1.0VˈVIN˄-˅=0VˈVo=30V
0ć d Ta d 70ć
0.1
Output Leakage Current
IOL
nA
1000
2/6
LESHAN RADIO COMPANY, LTD.
LR339
APPLICATION CIRCUIT
+ V
CC
+ V
CC
R3
10 k
R
10 k
ref
V
−
+
in
V
ref
R
ref
10 k
V
O
+ V
CC
R1
−
V
V
O
R2
R2
1.0 M
+
Vi
n
V
ref
10 k
V
R1
R1
CC
10k
V
R1
V
ref
[
R3
CC
=
R
ref
+ R1
ref
R
ref
+ R1
1.0 M
R3 ] R1 / / R / / R2
ref
R2 [ R1 / / R
ref
R1 / / R
ref
V
H
=
[V
O(max)
− V
O(min)
]
Amount of Hysteresis V
R2
H
R1/ / R + R2
ref
V
H
=
[(V
− V
O(min)
]
O(max)
R2 + R3
R2 ơ Rref / / R1
Figure 1. Inverting Comparator
with Hysteresis
Figure 2. Noninverting Comparator
with Hysteresis
V
CC
V
CC
≥ 4.0 V
10 k
100 k
R
L
R
S
V
+
−
in
R1
−
+
+
C
V
ref
V
O
R1
V
CC
R2
R3
330 k
V
CC
330 k
R
= Source Resistance
S
R1 ] R
T1
R4 330 k
T2
S
T1 = T2 = 0.69 RC
7.2
f [
V
(V)
R
L
kW
CC
Logic
Device
C(mF)
CMOS 1/4 MC14001
+15
100
10
R2 = R3 = R4
TTL
1/4 MC7400
+5.0
R1 [ R2 // R3 // R4
Figure 3. Driving Logic
+15 V
Figure 4. Squarewave Oscillator
R4
220 k
R5
220 k
R1
8.2 k
10 k
V
in(min)
≈ 0.4 V peak for 1% phase distortion (Dq).
*
V
in
V
O
6.8 k
R2
V
in(min)
V
in
)
D1
V
CC
q
q
15 k
R3
10 M
10 k
*
V
O
V
in
V
V
V
CC
D1 prevents input from going negative by more than 0.6 V.
+
R1 + R2 = R3
R5
for small error in zero crossing
O
V
EE
R3 ≤
Dq
10
EE
Figure 5. Zero Crossing Detector
(Single Supply)
Figure 6. Zero Crossing Detector
(Split Supplies)
3/6
LESHAN RADIO COMPANY, LTD.
LR339
TYPICAL CHARACTERISTICS CURVES
(V
CC
A
= 15 Vdc, T = +25°C (each comparator) unless otherwise noted.)
1.40
1.20
48
42
T
A
= −55° C
36
T
A
= +25° C
30
24
T = +125°C
1.00
0.80
0.60
A
18
12
6.0
0
−50
−25
0
25
50
75
100 125
0
4.0
8.0
12
16
20
24
28
32
T , AMBIENT TEMPERATURE (°C)
A
V
, POWER SUPPLY VOLTAGE (Vdc)
CC
Figure 7. Normalized Input Offset Voltage
Figure 8. Input Bias Current
8.0
7.0
6.0
T
A
= +25° C
T
A
= −55° C
5.0
4.0
3.0
T
A
= +125°C
2.0
1.0
0
0
100
200
300
400
500
V
, OUTPUT SATURATION VOLTAGE (mV)
sat
Figure 9. Output Sink Current versus
Output Saturation Voltage
4/6
LESHAN RADIO COMPANY, LTD.
LR339
Mechanical Dimensions
DIP-14
Unit: mm
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5/6
LESHAN RADIO COMPANY, LTD.
LR339
Mechanical Dimensions (Continued)
SOP-14
Unit: mm
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6/6
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