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PDF AP393A Data sheet ( Hoja de datos )
| Número de pieza | AP393A | |
| Descripción | LOW POWER LOW OFFSET VOLTAGE DUAL | |
| Fabricantes | Diodes | |
| Logotipo |  |
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Features
AP393A
LOW POWER LOW OFFSET VOLTAGE DUAL
COMPARATORS
General Description
• 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: 150nA
• Low input offset current: ±70nA
• Low input offset voltage: ±4mV
• Input common-mode voltage range includes ground
• Differential input voltage range equal to the power
supply voltage
• Low output saturation voltage: 250mV at 4mA
• Output voltage compatible with TTL, DTL, ECL, MOS
and CMOS logic systems
• MSOP-8L and SOP-8L: Available in “Green” Molding
Compound (No Br, Sb)
• Lead Free Finish/ RoHS Compliant (Note 1)
The AP393A consists of two independent precision voltage
comparators with an offset voltage specification as low as
8.0mV 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.
Application areas include limit comparators, simple analog to
digital converters; pulse, square wave and time delay generators;
wide range VCO; MOS clock timers; multivibrators and high
voltage digital logic gates. The AP393A is designed to directly
interface with TTL and CMOS. When operated from both plus
and minus power supplies, the AP393A will directly interface with
MOS logic where their low power drain is a distinct advantage
over standard comparators.
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 A XX G - 13
Package
M8 : MSOP-8L
S : SOP-8L
Green
G : Green
Packing
13 : Tape & Reel
Device
AP393AM8G-13
AP393ASG-13
Package
Code
M8
S
Packaging
(Note 2)
MSOP-8L
SOP-8L
13” Tape and Reel
Quantity
Part Number Suffix
2500/Tape & Reel
-13
2500/Tape & Reel
-13
Notes:
1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at
http://www.diodes.com/products/lead_free.html
2. 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.
AP393A Rev. 7
1 of 15
www.diodes.com
FEBRUARY 2009
© Diodes Incorporated
Free Datasheet http://www.datasheet4u.com/
1 page  
AP393A
LOW POWER LOW OFFSET VOLTAGE DUAL
COMPARATORS
Electrical Characteristics (Continued)
( VCC = 5V ) ( Note 6 )
Symbol
Parameter
Conditions
VOFFSET Input Offset Voltage
(Note 11)
IOFFSET Input Offset Current
IIN(+) -IIN(-), VCM = 0V
IBIAS Input Bias Current
IIN(+) or IIN(-) with Output In
Linear Range, VCM = 0V
(Note 7)
Input Common Mode Voltage
Range
V+
=30V
(Note
8)
VSAT Saturation Voltage
VIN(-) = 1V, VIN(+) = 0,
ISINK ≤ 4mA
IO(Leak)
Output Leakage Current
Differential Input Voltage
VIN(-) = 0, VIN(+) = 1V,
VO = 30V
Keep All VIN’s ≥ 0V (or V-, if
Used), (Note 10)
θJA
Thermal Resistance
Junction-to-Ambient
MSOP-8L (Note 12)
SOP-8L (Note 12)
θJC
Thermal Resistance
Junction-to-Case
MSOP-8L (Note 12)
SOP-8L (Note 12)
Min
-
-
-
0
-
-
-
Typ.
-
-
Max
9
180
- 500
Unit
mV
nA
nA
- V+ -2.0 V
- 700 mV
- 1.0 μA
- 36 V
208
165
oC/W
39
26
oC/W
Notes:
3. For operating at high temperatures, the AP393A 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.
4. 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+.
5. 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.
6. The AP393A temperature specifications are limited to 0°C < TOP < +70°C.
7. 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.
8. 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+.
9. 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.
10. 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).
11. 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.
12. Test condition for MSOP-8L and SOP-8L: Device mounted on FR-4 substrate PC board, 2oz copper, with minimum recommended pad layout.
AP393A Rev. 7
5 of 15
www.diodes.com
FEBRUARY 2009
© Diodes Incorporated
Free Datasheet http://www.datasheet4u.com/
5 Page 
Split-Supply Applications
( V+ = +15VDC and V- = -15 VDC )
V+
AP393A
LOW POWER LOW OFFSET VOLTAGE DUAL
COMPARATORS
51K 51K 10K
2K 3.9K
+
1/2 AP393A
-
8.2K
5.1K
50pF
- 2.4K
1/2 AP393A
+
2K
+
1/2 AP393A
-
6.8K
2.4K
φA
1/2 AP393A
φB
V-
MOS Clock Driver
V+
V+
++
5.1K
VIN 1/2 AP393A
VO
-
V-
Zero Crossing Detector
+
VIN
-5 VDC
+
1/2 AP393A
-
5.1K
VO
V
Comparator With a
Negative Reference
AP393A Rev. 7
11 of 15
www.diodes.com
FEBRUARY 2009
© Diodes Incorporated
Free Datasheet http://www.datasheet4u.com/
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet AP393A.PDF ] | |
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