MAX9648 Maxim, MAX9648 Datasheet

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MAX9648

Manufacturer Part Number
MAX9648
Description
The MAX9647/MAX9648 comparators are drop-in, pin-for-pin compatible replacements for the LMX331/LMX331H
Manufacturer
Maxim
Datasheet

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Part Number:
MAX9648AXK+T
Manufacturer:
MAXIM
Quantity:
2 500
The MAX9647/MAX9648 comparators are drop-in, pin-for-
pin compatible replacements for the LMX331/LMX331H.
The MAX9648 has the added benefit of internal hyster-
esis to provide noise immunity, preventing output oscilla-
tions even with slow moving input signals.
Advantages of the ICs include low supply voltage, small
package, and low cost. They also offer a wide supply
voltage range, wide operating temperature range, com-
petitive CMRR and PSRR, response time characteristics,
input offset, low noise, output saturation voltage, input
bias current, and RF immunity.
The ICs are available in both 5-pin SC70 and SOT23
packages.
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Mobile Communications
Notebooks and PDAs
Automotive Applications
Battery-Powered Electronics
General-Purpose Portable Devices
General-Purpose Low-Voltage Applications
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General Description
Applications
General-Purpose, Low-Voltage,
S Guaranteed +1.8V to +5.5V Performance
S -40NC to +125NC Automotive Temperature Range
S Low Supply Current (60µA/Channel at
S Input Common-Mode Voltage Range Includes
S No Phase Reversal for Overdriven Inputs
S Low Output Saturation Voltage (120mV)
S Internal 2mV Hysteresis (MAX9648)
S 5-Pin SC70 Space-Saving Package
Ordering Information
For related parts and recommended products to use with this part,
refer to www.maxim-ic.com/MAX9647.related.
Tiny Pack Comparators
V
Ground
(2.0mm x 2.1mm x 1.0mm)
DD
= +5.0V)
MAX9647/MAX9648
E V A L U A T I O N K I T A V A I L A B L E
appears at end of data sheet.
19-5968; Rev 1; 1/12
Features

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MAX9648 Summary of contents

Page 1

... General Description The MAX9647/MAX9648 comparators are drop-in, pin-for- pin compatible replacements for the LMX331/LMX331H. The MAX9648 has the added benefit of internal hyster- esis to provide noise immunity, preventing output oscilla- tions even with slow moving input signals. Advantages of the ICs include low supply voltage, small package, and low cost ...

Page 2

... Junction Temperature .....................................................+150NC - 0.3V 0.3V Storage Temperature Range ............................ -65NC to +150NC Lead Temperature (soldering, 10s) ................................+300NC Soldering Temperature (reflow) ......................................+260NC = 5.1kI connected typical values are SYMBOL CONDITIONS MAX9648 only HYST TCV +25NC -40NC to +85NC -40NC to +125NC A T ...

Page 3

... Maxim Integrated Products 3 General-Purpose, Low-Voltage, Tiny Pack Comparators = 5.1kI connected typical values are SYMBOL CONDITIONS T = +25NC -40NC to +85NC -40NC to +125NC A MAX9648 only TCV +25NC -40NC to +85NC -40NC to +125NC +25NC ...

Page 4

... Maxim Integrated Products 4 General-Purpose, Low-Voltage, Tiny Pack Comparators = 5.1kI connected typical values are SYMBOL CONDITIONS V OS MAX9648 only TCV ...

Page 5

... +85° -40°C A 4.0 4.5 5.0 5.5 6.0 = 10mV 1.8V DD 10k 100k 1. 2. 100 125 MAX9647/MAX9648 = +25NC, unless otherwise noted.) A SUPPLY CURRENT vs. SUPPLY VOLTAGE +125° +85° +25° -40° LOW OUT ...

Page 6

... General-Purpose, Low-Voltage, Tiny Pack Comparators Typical Operating Characteristics (continued) = 10pF, overdrive = 100mV 100 ) PLH T = +25° +85°C A 1000 75 100 125 MAX9647/MAX9648 = +25NC, unless otherwise noted.) A PROPAGATION DELAY vs. TEMPERATURE (V = 100mV) OVERDRIVE 120 100 t 80 PLH t PHL -50 -25 ...

Page 7

... Maxim Integrated Products 7 General-Purpose, Low-Voltage, Tiny Pack Comparators Typical Operating Characteristics (continued) = 10pF, overdrive = 100mV MAX9647 toc13 MAX9647 toc15 MAX9647 toc17 200mV/div MAX9647/MAX9648 = +25NC, unless otherwise noted.) 500kHz RESPONSE 100mV OVERDRIVE MAX9647 toc14 OUT 400ns/div 100kHz RESPONSE ...

Page 8

... They require approximately 60FA per comparator with a 5V supply and 52FA with a 2.7V supply. The MAX9648 has 2mV of hysteresis for noise immunity. This significantly reduces the chance of output oscilla- tions even with slow moving input signals. The ICs are ideal for automotive applications because they oper- ate from -40NC to +125NC ...

Page 9

... For slow moving input signals (rise time > 1ms), use a 1nF capacitor between IN+ and IN- to reduce high frequency noise REF V Figure 2. Adding Hysteresis with External Resistors MAX9647/MAX9648 . In this example, choose 50mV. HYST (R2/(R1 + R2))V HYST OUT(HIGH) 0.050V = 5(1000/(R1 + 1000))V = 2.525V, and V TH /(R1 + R2) ...

Page 10

... Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. PACKAGE PIN- TOP TYPE PACKAGE MARK 5 SC70 5 SOT23 5 SC70 +AUS 5 SOT23 +AFLM 5 SC70 +AUT 5 SOT23 +AFLN MAX9647/MAX9648 Package Information PACKAGE OUTLINE CODE NO. PATTERN NO. X5+1 21-0076 U5+1 21-0057 LAND 90-0188 90-0174 ...

Page 11

... Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 2012 Maxim Integrated Products © MAX9647/MAX9648 General-Purpose, Low-Voltage, Tiny Pack Comparators DESCRIPTION Maxim is a registered trademark of Maxim Integrated Products, Inc. ...

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