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PDF AD8468 Data sheet ( Hoja de datos )
| Número de pieza | AD8468 | |
| Descripción | Single-Supply TTL/CMOS Comparator | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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Data Sheet
Rail-to-Rail, Fast, Low Power 2.5 V to 5.5 V,
Single-Supply TTL/CMOS Comparator
AD8468
FEATURES
Fully specified rail to rail at VCC = 2.5 V to 5.5 V
Input common-mode voltage from −0.2 V to VCC + 0.2 V
Low glitch CMOS-/TTL-compatible output stage
40 ns propagation delay
Low power: 2 mW at 2.5 V
Shutdown pin
Power supply rejection > 60 dB
−40°C to +125°C operation
Qualified for automotive applications
APPLICATIONS
Automotive applications
High speed instrumentation
Clock and data signal restoration
Logic level shifting or translation
High speed line receivers
Threshold detection
Peak and zero-crossing detectors
High speed trigger circuitry
Pulse-width modulators
Current-/voltage-controlled oscillators
GENERAL DESCRIPTION
The AD8468 is a fast comparator fabricated on XFCB2.0, an
Analog Devices, Inc., proprietary process. This comparator is
exceptionally versatile and easy to use. Features include an input
range from −0.2 V to VCC + 0.2 V, low noise, TTL-/CMOS-
compatible output drivers, and shutdown inputs. The device
offers 40 ns propagation delays driving a 15 pF load with 10 mV
overdrive on 500 µA typical supply current.
A flexible power supply scheme allows the device to operate
with a single 2.5 V positive supply with a −0.2 V to + 2.7 V
input signal range and up to a 5.5 V positive supply with a
−0.2 V to +5.7 V input signal range.
FUNCTIONAL BLOCK DIAGRAM
NONINVERTING
INPUT
INVERTING
INPUT
+
AD8468
–
SDN
Figure 1.
Q OUTPUT
The TTL-/CMOS-compatible output stage is designed to drive
up to 15 pF with full rated timing specifications and to degrade
in a graceful and linear fashion as additional capacitance is
added. The input stage of the comparator offers robust protec-
tion against large input overdrive, and the outputs do not phase
reverse when the valid input signal range is exceeded.
The AD8468 is available in a tiny 6-lead SC70 package with a
single-ended output and a shutdown pin.
Rev. A
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2010–2015 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
1 page  
AD8468
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter
Supply Voltages
Supply Voltage (VCC to GND)
Input Voltages
Input Voltage
Maximum Input/Output Current
Current
Input Current (into VP, VN)1
Shutdown Control Pin
Applied Voltage (SDN to GND)
Maximum Input/Output Current
Output Current
Temperature
Operating Temperature, Ambient
Operating Temperature, Junction
Rating
−0.5 V to +6.0 V
−0.5 V to VCC + 0.5 V
±50 mA
±10 mA
−0.5 V to VCC + 0.5 V
±50 mA
±50 mA
−40°C to +125°C
150°C
1 Input pins have clamp diodes to the power supply pins. Limit input current
to 10 mA or less whenever input signals exceed the power supply rail by
0.5 V.
Data Sheet
Stresses at or above those listed under Absolute Maximum
Ratings may cause permanent damage to the product. This is a
stress rating only; functional operation of the product at these
or any other conditions above those indicated in the operational
section of this specification is not implied. Operation beyond
the maximum operating conditions for extended periods may
affect product reliability.
THERMAL RESISTANCE
θJA is specified for the worst-case conditions, that is, a device
soldered in a circuit board for surface-mount packages.
Table 3. Thermal Resistance
Package Type
6-Lead SC70
1 Measurement in still air.
ESD CAUTION
θJA1 Unit
426 °C/W
Rev. A | Page 4 of 12
5 Page 
AD8468
Data Sheet
OUTLINE DIMENSIONS
2.20
2.00
1.80
1.35
654
2.40
1.25 2.10
1.15
123
1.80
1.30 BSC
1.00
0.90
0.70
0.65 BSC
1.10
0.80
0.40
0.10
0.10 MAX
COPLANARITY
0.10
0.30
0.15
SEATING
PLANE
0.22
0.08
0.46
0.36
0.26
COMPLIANT TO JEDEC STANDARDS MO-203-AB
Figure 14. 6-Lead Thin Shrink Small Outline Transistor Package [SC70]
(KS-6)
Dimensions shown in millimeters
ORDERING GUIDE
Model1
Temperature Range
AD8468WBKSZ-R7 −40°C to +125°C
AD8468WBKSZ-RL −40°C to +125°C
Package Description
6-Lead Thin Shrink Small Outline Transistor Package [SC70]
6-Lead Thin Shrink Small Outline Transistor Package [SC70]
Package Option
KS-6
KS-6
Branding
Y3F
Y3F
1 Z = RoHS Compliant Part.
AUTOMOTIVE PRODUCTS
The AD8468WBKSZ models are available with controlled manufacturing to support the quality and reliability requirements of
automotive applications. Note that these automotive models may have specifications that differ from the commercial models; therefore,
designers should review the Specifications section of this data sheet carefully. Only the automotive grade products shown are available for
use in automotive applications. Contact your local Analog Devices account representative for specific product ordering information and
to obtain the specific Automotive Reliability reports for these models.
Rev. A | Page 10 of 12
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet AD8468.PDF ] | |
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