AP393S-U [DIODES]
暂无描述;AP393
LOW POWER LOW OFFSET VOLTAGE DUAL
COMPARATORS
General Description
Features
The AP393 consists of two independent precision voltage
comparators with an offset voltage specification as low as 2.0mV
max for two comparators which were designed specifically to
operate from a single power supply over a wide range of voltages.
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. These comparators also have a unique
characteristic in that the input common-mode voltage range
includes ground, even though operated from a single power
supply voltage.
•
•
Wide supply
Voltage range: 2.0V to 36V
Single or dual supplies: ±1.0V to ±18V
Very low supply current drain (0.4mA) – independent of
supply voltage
Low input biasing current: 25nA
Low input offset current: ±5nA
Maximum offset voltage: ±3mV
•
•
•
•
•
Input common-mode voltage range includes ground
Differential input voltage range equal to the power
supply voltage
Application areas include limit comparators, simple analog to
digital converters; pulse, squarewave and time delay generators;
wide range VCO; MOS clock timers; multivibrators and high
voltage digital logic gates. The AP393 is designed to directly
interface with TTL and CMOS. When operated from both plus
and minus power supplies, the AP393 will directly interface with
MOS logic where their low power drain is a distinct advantage
over standard comparators.
•
•
Low output saturation voltage: 250mV at 4mA
Output voltage compatible with TTL, DTL, ECL, MOS
and CMOS logic systems
SOP-8L, PDIP-8L package
SOP-8L: Available in “Green” Molding Compound (No
Br, Sb) (Note 1)
•
•
•
Lead Free Finish/RoHS Compliant for Lead Free and
“Green” Products (Note 2)
Applications
•
•
•
•
•
•
High precision comparators
Reduced VOS drift over temperature
Eliminates need for dual supplies
Allows sensing near ground
Compatible with all forms of logic
Power drain suitable for battery operation
Ordering Information
A P 3 9 3 X X
X
Package
Packing
Lead Free
: SOP - 8 L
Blank : Standard
-U : Tube
S
L
Lead
-13 : Taping
:
Free
N : PDIP -8L
G : Green
Note:
1. SOP-8L is “Green” product only.
2. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.
Tube
Quantity Part Number
Suffix
13” Tape and Reel
Package
Code
Device
Packaging
Quantity
Part Number
Suffix
100
2500/Tape & Reel
NA
-13
S
N
SOP-8L
PDIP-8L
- U
AP393S
AP393N
60
NA
- U
Lead-free
Note:
3. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
http://www.diodes.com/datasheets/ap02001.pdf.
AP393 Rev. 3
1 of 15
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AP393
LOW POWER LOW OFFSET VOLTAGE DUAL
COMPARATORS
Pin Assignments
(Top View)
1
2
3
4
8
7
6
5
V+
OUTPUT 1
OUTPUT 2
INVERTING INPUT 1
NON-INVERTING INPUT 1
GND
AP393
INVERTING INPUT 2
NON-INVERTING INPUT 2
SOP-8L
(Top View)
1
8
7
6
5
V+
OUTPUT 1
INVERTING INPUT 1
NON-INVERTING INPUT 1
GND
OUTPUT 2
2
3
4
AP393
INVERTING INPUT 2
NON-INVERTING INPUT 2
PDIP -8L
Pin Descriptions
Pin Name
Pin No.
Description
OUTPUT 1
1
Channel 1 Output
INVERTING INPUT 1
2
3
Channel 1 Negative Input
Channel 1 Positive Input
NON-INVERTING INPUT 1
GND
4
5
6
Ground
NON-INVERTING INPUT 2
INVERTING INPUT 2
Channel 2 Positive Input
Channel 2 Negative Input
OUTPUT 2
V+
7
8
Channel 2 Output
VCC
AP393 Rev. 3
2 of 15
FEBRUARY 2007
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© Diodes Incorporated
AP393
LOW POWER LOW OFFSET VOLTAGE DUAL
COMPARATORS
Block Diagram
1
2
3
4
8
7
+
OUTPUT 1
V
OUTPUT 2
INVERTING INPUT 1
NON-INVERTING INPUT 1
GND
A
B
-
+
+
-
6
5
INVERTING INPUT 2
NON-INVERTING INPUT 2
V+
3.5µA
100µA
3.5µA
100µA
Q2
Q3
+INPUT
-INPUT
Q1
Q4
OUTPUT
Q5
Q6
Q8
Q7
AP393 Rev. 3
3 of 15
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© Diodes Incorporated
AP393
LOW POWER LOW OFFSET VOLTAGE DUAL
COMPARATORS
Absolute Maximum Ratings ( Note 13 )
Symbol
VCC
Parameter
Rating
36
Unit
V
Supply Voltage
VIN
VIN
ICC
Differential Input Voltage (Note 11)
Input Voltage
Input Current (VIN-0.3V) (Note 6)
36
V
V
mA
-0.3 to +36
50
PDIP-8L
SOP-8L
780
510
PD
Power Dissipation (Note 4)
mW
Output Short-Circuit to Ground (Note 5)
Operating Junction Temperature Range
Storage Temperature Range
Continuous
0 to +70
-65 to +150
TOP
TST
oC
oC
Electrical Characteristics ( VCC = 5V, TA = 25oC, unless otherwise stated )
Symbol
Parameter
Conditions
(Note 12)
IIN(+) or IIN(-) with Output In
Linear Range, VCM = 0V
(Note 8)
Min.
-
Typ. Max. Unit
VOFFSET Input Offset Voltage
IBIAS Input Bias Current
IOFFSET Input Offset Current
1.0
5.0
mV
-
25
250
nA
IIN(+) - IIN(-) VCM = 0V
-
0
-
5.0
-
0.4
1
50
V+ -1.5
1
nA
V
Input Common Mode Voltage Range V+ = 30V (Note 9)
V+ = 5V
ICC
Supply Current
Voltage Gain
RL = ∞
mA
V+ = 36V
-
2.5
RL > 15kΩ, V+ = 15V
VO = 1V to 11V
50
200
-
V/mV
VIN = TTL Logic Swing,
VREF = 1.4V, VRL = 5V,
RL = 5.1kΩ
VRL = 5V, RL = 5.1kΩ (Note 10)
VIN(-) = 1V, VIN(+) = 0,
VO < 1.5V
Large Signal Response Time
Response Time
-
300
-
ns
-
1.3
16
-
-
µs
IO(Sink) Output Sink Current
6.0
mA
VIN(-) = 1V, VIN(+) = 0,
VSAT Saturation Voltage
-
-
250
0.1
400
-
mV
nA
ISINK < 4mA
IO(Leak) Output Leakage Current
VIN(-) = 0, VIN(+) = 1V, VO = 5V
AP393 Rev. 3
4 of 15
FEBRUARY 2007
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AP393
LOW POWER LOW OFFSET VOLTAGE DUAL
COMPARATORS
Electrical Characteristics ( VCC = 5V ) ( Note 7 )
Symbol
VOFFSET Input Offset Voltage
IOFFSET Input Offset Current
Parameter
Conditions
(Note 12)
IIN(+) -IIN(-), VCM = 0V
IIN(+) or IIN(-) with Output In
Linear Range, VCM = 0V
(Note 8)
Min.
-
-
Typ. Max. Unit
-
-
9
150
mV
nA
IBIAS Input Bias Current
-
-
400
nA
Input Common Mode Voltage Range V+ =30V (Note 9)
0
-
-
-
V+ -2.0
700
V
VIN(-) = 1V, VIN(+) = 0, ISINK
4mA
<
VSAT Saturation Voltage
IO(Leak) Output Leakage Current
Differential Input Voltage
mV
VIN(-) = 0, VIN(+) = 1V,
VO = 30V
-
-
-
-
1.0
36
µA
V
Keep All VIN’s > 0V (or V-, if
Used), (Note 11)
Note:
4. For operating at high temperatures, the AP393 must be derated based on a 125°C maximum junction temperature and a
thermal resistance of 170°C/W which applies for the device soldered in a printed circuit board, operating in a still air ambient.
The low bias dissipation and the “ON-OFF” characteristic of the outputs keeps the chip dissipation very small (PD <100mW), provided the
output transistors are allowed to saturate.
5. Short circuits from the output to V+ can cause excessive heating and eventual destruction. When considering short circuits to
ground, the maximum output current is approximately 20mA independent of the magnitude of V+.
6. This input current will only exist when the voltage at any of the input leads is driven negative. It is due to the collector-base
junction of the input PNP transistors becoming forward biased and thereby acting as input diode clamps. In addition to this
diode action, there is also lateral NPN parasitic transistor action on the IC chip. This transistor action can cause the output
voltages of the comparators to go to the V+ voltage level (or to ground for a large overdrive) for the time duration that an input
is driven negative. This is not destructive and normal output states will re-establish when the input voltage, which is negative,
again returns to a value greater than -0.3V.
7. The AP393 temperature specifications are limited to 0°C < TOP < +70°C.
8. The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent
of the state of the output so no loading change exists on the reference or input lines.
9. The input common-mode voltage or either input signal voltage should not be allowed to go negative by more than 0.3V. The
upper end of the common-mode voltage range is V+-1.5V at 25°C, but either or both inputs can go to 36V without damage,
independent of the magnitude of V+.
10. The response time specified is for a 100mV input step with 5mV overdrive. For larger overdrive signals 300ns can be
obtained, see typical performance characteristics section.
11. Positive excursions of input voltage may exceed the power supply level. As long as the other voltage remains within the
common-mode range, the comparator will provide a proper output state. The low input voltage state must not be less than
-0.3V (or 0.3V below the magnitude of the negative power supply, if used).
12. At output switch point, VO ~ 1.4V, RS=0Ω with V+ from 5V to 30V; and over the full input common-mode range (0V to V+-1.5V),
at 25°C.
13. Refer to RETS193AX for AP393 military specifications.
AP393 Rev. 3
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AP393
LOW POWER LOW OFFSET VOLTAGE DUAL
COMPARATORS
Application Information
The AP393 is high gain, wide bandwidth devices, like most comparators, can easily oscillate if the output lead is inadvertently
allowed to capacitively couple to the inputs via stray capacitance. This shows up only during the output voltage transition intervals as the
comparator change states. Power supply bypassing is not required to solve this problem. Standard PC board layout is helpful as it
reduces stray input-output coupling. Reducing the input resistors to < 10kΩ reduces the feedback signal levels and finally, adding even a
small amount (1.0 to 10 mV) of positive feedback (hysteresis) causes such a rapid transition that oscillations due to stray feedback are
not possible. Simply socketing the IC and attaching resistors to the pins will cause input-output oscillations during the small transition
intervals unless hysteresis is used. If the input signal is a pulse waveform, with relatively fast rise and fall times, hysteresis is not required.
All input pins of any unused comparators should be tied to the negative supply.
The bias network of the AP393 establishes a drain current independent of the magnitude of the power supply voltage over the
range of from 2.0 VDC to 30 VDC. It is usually unnecessary to use a bypass capacitor across the power supply line.
The differential input voltage may be larger than V+ without damaging the device (Note 8). Protection should be provided to
prevent the input voltages from going negative more than -0.3 VDC (at 25°C). An input clamp diode can be used as shown in the
applications section.
The output of the AP393 is the uncommitted collector of a grounded-emitter NPN output transistor. Many collectors can be tied
together to provide an output OR’ing function. An output pull-up resistor can be connected to any available power supply voltage within
the permitted supply voltage range and there is no restriction on this voltage due to the magnitude of the voltage applied to the V+
terminal of the AP393 package. The output can also be used as a simple SPST switch to ground (when a pull-up resistor is not used).
The amount of current the output device can sink is limited by the drive available (which is independent of V+) and the β of this device.
When the maximum current limit is reached (approximately 16mA), the output transistor will come out of saturation and the output voltage
will rise very rapidly. The output saturation voltage is limited by the approximately 60Ω rSAT of the output transistor. The low offset voltage
of the output transistor (1.0 mV) allows the output to clamp essentially to ground level for small load currents.
Typical Circuit ( VCC = 5.0VDC
)
+5.0VDC
V+
3.0K
VO
+VIN
+
100K
+
AP393
AP393
-
+VREF
-
1/4 MM54CXX
Basic Comparator
Driving CMOS
V+
+5VDC
4.3K
100K
V+
0
75 pF
100K
-
10K
1:100kHz
+
VO
1/2 AP393
AP393
+
1/4 DM54XX
-
100K
V+
100K
Squarewave Oscillator
Driving TTL
AP393 Rev. 3
6 of 15
FEBRUARY 2007
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AP393
LOW POWER LOW OFFSET VOLTAGE DUAL
COMPARATORS
Typical Circuit ( Continued ) ( VCC = 5.0VDC
)
V+
15K
V+
R1
1M
D1
*
1N914
200K
2.0K
100K
R2
D2
100K 1N914
V+
0
-V+
0
-
80 pF
1M
6µs
60µs
tOt1
0.1µF
-
t2
VO
1/2 AP393
VO
1/2 AP393
+
+
+15VDC
1M
200K
CRYSTAL
f=100KHz
1M
*For large ratios of R1/R2, D1 can
be omitted
Pulse Generator
Crystal Controlled Oscillator
V+
V+
100K
100K
500pF
1/2 AP393
-
3.0K
5.1K
3.0K
10
+
+VC
0.1µF
0.01µF
OUTPUT1
FREQUENCY
CONTROL
VOLTAGE
INPUT
+
1/2 AP393
V+/2
-
20K
50K
20K
OUTPUT2
V+/2
-
1/2 AP393
+
Two-Decade High Frequency VCO
V*=+30VDC
+250mVDC < VC < +50VDC
700Hz < fO < 100KHz
V+
V+
3K
-
+VREF
3.0K
VO
+VIN
+
1/2 AP393
VO
1/2 AP393
10K
+
+VIN
-
+VREF
10M
Non-Inverting Comparator with
Hysteresis
Basic Comparator
AP393 Rev. 3
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AP393
LOW POWER LOW OFFSET VOLTAGE DUAL
COMPARATORS
Typical Circuit ( Continued ) ( VCC = 5.0VDC
)
V+
V+
3K
6.2K
+VIN
-
-
VO
VO
1/2 AP393
1/2 AP393
1M
V+
STROBE
INPUT
+
+
*
1M
1M
* OR LOGIC GATE WITHOUT PULL-UP
RESISTOR
Inverting Comparator with
Output Strobing
Hysteresis
V+
V+
200K
3K
39K
3K
+0.075V
-
+0.375V
-
1K
1K
100K
f
1/2 AP393
100K
f
1/2 AP393
A
B
C
A
B
C
100K
100K
100K
100K
+
+
1K
1K
V+
0
"0" "1"
V+
0
"0" "1"
Or Gate
AND Gate
V+
V+ (12VDC
)
2RS
R4
3K
100K
+VREF HI
+
10K
10K
D1
-
100K
1/2 AP393
VOUT
LAMP
1/2 AP393
-
12 ESB
V+
0
"0" "1"
+
RS
A
D2
D3
+VIN
B
C
D
+
D4
2N2222
1/2 AP393
2RS
-
ALL DIODES 1N914
+VREF LOW
Limit Comparator
Large Fan-in AND Gate
AP393 Rev. 3
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AP393
LOW POWER LOW OFFSET VOLTAGE DUAL
COMPARATORS
Typical Circuit ( Continued ) ( VCC = 5.0VDC
)
V+
+
3.0K
VO
1/2 AP393
2N2222
-
100K
100K
+VIN1
-VIN2
-
5.1K
1/2 AP393
+
+
1/2 AP393
-
Comparing Input Voltages of
Opposite Polarity
ORing the Outputs
V+
V+
+
0
100K
5.1K 5.1K
100K
-
5.1K
VO
t0
1M
10K
100pF
VIN
-
1N914
1M
1N914
1/2 AP393
1/2 AP393
VO
+
+
V+
20M
1ms
PW
t0
0.001µF
1N914
0
t1
1M
10K
Zero Crossing Detector
(Single Power Supply)
One-Shot Multivibrator
V+
15K
51K
100K
100K
V+
0
S
+15V
S
+
0
R
V+
0
1/2 AP393
VO
100K
-
R
Bi-Stable Multivibrator
AP393 Rev. 3
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AP393
LOW POWER LOW OFFSET VOLTAGE DUAL
COMPARATORS
Typical Circuit ( Continued ) ( VCC = 5.0VDC
)
V+
1M
1M
15K
10M
560K
-
100K
-
+VIN
V+
0
40µs
100K
1/2 AP393
t0
t1
+4V
1µs
0
+
1/2 AP393
100pF
VO
+
10M
240K
62K
One-Shot Multivibrator with Input Lock Out
V+
3.0K
10M
10K
15K
200K
10K
+
V+
0
VO3
1/2 AP393
V+
V3
-
t0
t3
3.0K
10M
51K
10K
-
V+
0
VC1
C1
0.001µF
10K
+
1/2 AP393
t0
t4
V+
0
+VIN
1/2 AP393
VO2
+
V+
V2
INPUT GATING SIGNAL
t0 t2
-
3.0K
10M
51K
10K
V+
0
V+
V3
+
t0 t1
V2
V1
1/2 AP393
VC1
VO1
V1
-
0
t0 t1 t2 t3 t4
t
51K
Time Delay Generator
AP393 Rev. 3
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AP393
LOW POWER LOW OFFSET VOLTAGE DUAL
COMPARATORS
Split-Supply Applications ( V+ = +15VDC and V- = -15 VDC
)
V+
51K
+
2K 3.9K
10K
51K
2.4K
2.4K
-
φ
φ
A
B
1/2 AP393
+
1/2 AP393
1/2 AP393
8.2K
2K
-
+
5.1K
1/2 AP393
-
50pF
6.8K
V-
MOS Clock Driver
V+
V+
+
+
5.1K
VO
5.1K
VO
+
VIN
+
VIN
1/2 AP393
1/2 AP393
-5 VDC
-
-
V-
V
Comparator With a
Negative Reference
Zero Crossing Detector
AP393 Rev. 3
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AP393
LOW POWER LOW OFFSET VOLTAGE DUAL
COMPARATORS
Typical Characteristics
Supply Current
Input Current
Response Time for Various Input
Overdrives—Negative Transition
Response Time for Various Input
Overdrives—Positive Transition
Output Saturation Voltage
AP393 Rev. 3
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AP393
LOW POWER LOW OFFSET VOLTAGE DUAL
COMPARATORS
Marking Information
(1) SOP-8L
(Top view)
Logo
Internal Code
Blank : Standard
L : Lead-Free
G : Green
AP393
YY W
Part Number
W
XX
WW: Xth week:01~52
: " 01 " = 2001
YY: Year
02 " = 2002
SOP - 8 L
(2) PDIP-8L
(Top view)
Logo
Internal Code
Blank : Standard
L : Lead Free
AP393
Part Number
YY W
W
XX
WW: Xth week:01~52
: " 01 " = 2001
YY: Year
02 " = 2002
AP393 Rev. 3
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AP393
LOW POWER LOW OFFSET VOLTAGE DUAL
COMPARATORS
Package Information
(1) SOP-8L (JEDEC Small Outline Package)
Gauge Plane
Seating Plane
0.38/1.27
Detail "A"
7°~9°
7°~9°
0.35max.
45°
Detail "A"
0.3/0.5
1.27typ
3.70/4.10
4.80/5.30
(2) PDIP-8L
AP393 Rev. 3
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AP393
LOW POWER LOW OFFSET VOLTAGE DUAL
COMPARATORS
IMPORTANT NOTICE
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further
notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product described herein; neither
does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall assume all risks of such use and will
agreeto hold DiodesIncorporatedand all the companieswhose productsare represented onour website, harmlessagainst all damages.
LIFE SUPPORT
Diodes Incorporated productsare notauthorizedfor use ascriticalcomponentsin lifesupportdevices or systemswithout theexpressed written approval ofthe
PresidentofDiodesIncorporated.
AP393 Rev. 3
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