MAX9144 Maxim, MAX9144 Datasheet

MAX9144
Manufacturer Part Number	MAX9144
Description	The MAX9140/MAX9141 are single and the MAX9142/MAX9144 are dual/quad high-speed comparators optimized for systems powered from a 3V or 5V supply
Manufacturer	Maxim
MAX9144 datasheets	1. MAX9140.pdf (15 pages)

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19-2064; Rev 3; 1/10

40ns, Low-Power, 3V/5V, Rail-to-Rail

General Description

The MAX9140/MAX9141 are single and the MAX9142/

MAX9144 are dual/quad high-speed comparators opti-

mized for systems powered from a 3V or 5V supply. The

MAX9141 features latch enable and device shutdown.

These devices combine high speed, low power, and

rail-to-rail inputs. Propagation delay is 40ns, while sup-

ply current is only 150µA per comparator.

The input common-mode range of the MAX9140/

MAX9141/MAX9142/MAX9144 extends beyond both

power-supply rails. The outputs pull to within 0.3V of

either supply rail without external pullup circuitry, mak-

ing these devices ideal for interface with both CMOS

and TTL logic. All input and output pins can tolerate a

continuous short-circuit fault condition to either rail.

Internal hysteresis ensures clean output switching, even

with slow-moving input signals.

The MAX9140/MAX9141/MAX9142/MAX9144 are high-

er-speed, lower-power, and lower-cost upgrades to

industry-standard comparators MAX941/MAX942/

MAX944.

The MAX9140 are offered in tiny 5-pin SC70 and SOT23

packages. The MAX9141 and MAX9142 are available in

8-pin SOT23 and SO packages, while the MAX9144 is

available in both 14-pin SO and TSSOP packages.

Line Receivers

Battery-Powered Systems

Threshold Detectors/Discriminators

3V/5V Systems

Zero-Crossing Detectors

Sampling Circuits

TOP VIEW

MAX9140

OUT

IN +

GND

IN-

GND

IN+

IN-

SC70/SOT23

________________________________________________________________ Maxim Integrated Products

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.

Single-Supply Comparators

♦ Fast, 40ns Propagation Delay (10mV Overdrive)

♦ Low Power

150µA Supply Current Per Comparator (3V)

♦ Optimized for 3V and 5V Applications

♦ Rail-to-Rail Input Voltage Range

♦ Low, 500µV Offset Voltage

♦ Internal Hysteresis for Clean Switching

♦ Outputs Swing 300mV of Power Rails

♦ CMOS/TTL-Compatible Outputs

♦ Output Latch (MAX9141 Only)

♦ Shutdown Function (MAX9141 Only)

♦ Available in SC70 and SOT23 Packages

PART*

MAX9140AAUK+T

MAX9140AAXK+T

MAX9140AAXK/V+T

MAX9140EXK-T

MAX9140EUK-T

MAX9141EKA-T

MAX9141ESA

Applications

MAX9142EKA-T

MAX9142ESA

MAX9144EUD

MAX9144ESD

Note: All E-grade devices are specified over the -40°C to +85°C

operating temperature range. All A-grade devices are specified

over the -40°C to +125°C operating temperature range.

+ Denotes a lead(Pb)-free/RoHS-compliant package.

- Denotes a package containing lead(Pb).

T = Tape and reel.

/V denotes an automotive qualified part.

MAX9141

N.C.

OUTA

OUT

INA-

SHDN

INA +

GND

SOT23/SO

Features

Ordering Information

PIN-PACKAGE

TOP MARK

5 SOT23

+AFEJ

5 SC70

+ASW

5 SC70

+AUG

5 SC70

ACC

5 SOT23

ADQP

8 SOT23

AAFD

8 SO

—

8 SOT23

AAFE

8 SO

—

14 TSSOP

—

14 SO

—

Pin Configurations

OUTA

INA-

MAX9142

INA +

OUTB

MAX9144

INB-

INB +

INB-

OUTB

TSSOP/SO

OUTD

IND-

IND +

GND

INC +

INC-

OUTC

Download datasheet (338Kb)

Related parts for MAX9144
Part Number	Description	Manufacturer	Datasheet
MAX9115EXK-T	MAX9115EXK-TSingle LVDS Line Receiver in SC70	Maxim Integrated Products	MAX9115EXK-T.pdf (8 pages)
MAX9140	The MAX9140/MAX9141 are single and the MAX9142/MAX9144 are dual/quad high-speed comparators optimized for systems powered from a 3V or 5V supply	Maxim	MAX9140.pdf (15 pages)
MAX9141	The MAX9140/MAX9141 are single and the MAX9142/MAX9144 are dual/quad high-speed comparators optimized for systems powered from a 3V or 5V supply	Maxim	MAX9140.pdf (15 pages)
MAX9142	The MAX9140/MAX9141 are single and the MAX9142/MAX9144 are dual/quad high-speed comparators optimized for systems powered from a 3V or 5V supply	Maxim	MAX9140.pdf (15 pages)
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MAX9108	The MAX9107/MAX9108/MAX9109 dual/quad/single, high-speed, low-power voltage comparators are designed for use in systems powered from a single +5V supply	Maxim	MAX9107.pdf (13 pages)
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MAX9144 Summary of contents
Page 1 ... MAX941/MAX942/ MAX944. The MAX9140 are offered in tiny 5-pin SC70 and SOT23 packages. The MAX9141 and MAX9142 are available in 8-pin SOT23 and SO packages, while the MAX9144 is available in both 14-pin SO and TSSOP packages. Line Receivers Battery-Powered Systems Threshold Detectors/Discriminators ... Page 2 ... SC70 (derate 3.1mW/°C above +70°C) .............247mW Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability ... Page 3 ... Specification is for current flowing into or out of the output pin for V in shutdown. Note 9: Specified between any two channels in the MAX9142/MAX9144. Note 10: Specified as the difference between t Note 11: Applies to the MAX9141 only for both SHDN and LE. Note 12: Applies to the MAX9141 only. Comparator is active with LE driven high and is latched with LE driven low (V Figure 2 ... Page 4 Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators (V = 3.0V 0V 15pF MAX9140 SUPPLY CURRENT vs. SUPPLY VOLTAGE 300 250 T = +85°C A 200 T = +25°C A 150 T = ... Page 5 Low-Power, 3V/5V, Rail-to-Rail (V = 3.0V 0V 15pF INPUT OFFSET VOLTAGE vs. TEMPERATURE 500 400 300 200 100 0 -100 -200 -300 -400 -500 -50 -25 0 TEMPERATURE (°C) INPUT ... Page 6 ... Single-Supply Comparators (V = 3.0V 0V 15pF PROPAGATION DELAY ( 10mV 5.5V CC INPUT 50mV/div OUTPUT 2V/div 10ns/div PIN MAX9140 MAX9141 MAX9142 MAX9144 — — 1 — — — — — — 5 — — 6 — — 7 — — — — — ... Page 7 ... This tends to occur when the voltage on one input equal to the voltage on the other input. To counter the parasitic effects and noise, the MAX9140/ MAX9141/MAX9142/MAX9144 have an internal hystere- sis of 1.5mV. The hysteresis in a comparator creates two trip points: one for the rising input voltage and one for the falling input voltage (Figure 1) ... Page 8 ... Applications Information Circuit Layout and Bypassing The high-gain bandwidth of the MAX9140/MAX9141/ MAX9142/MAX9144 requires design precautions to realize the full high-speed capabilities of these com- parators. The recommended precautions are: 1) Use a PCB with a good, unbroken, low-induc- tance ground plane. ... Page 9 ... CC 10kΩ COAX LINE 20kΩ MAX9140 20kΩ Figure 6. Line Receiver Application _______________________________________________________________________________________ Single-Supply Comparators MAX9140 MAX9141 SERIAL MAX9142 DIGITAL INPUT MAX9144 OUTPUT ANALOG IN Figure 5. 3.3V Digitally Controlled Threshold Detector PROCESS: Bipolar 3V 0 CLEAN DIGITAL SIGNAL V = 3.3V DD VREFC V DD SDI ... Page 10 ... Single-Supply Comparators For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a "+", "#", or "-" in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status ... Page 11 ... Low-Power, 3V/5V, Rail-to-Rail For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a "+", "#", or "-" in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status ... Page 12 ... Single-Supply Comparators For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a "+", "#", or "-" in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status ... Page 13 ... Low-Power, 3V/5V, Rail-to-Rail For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a "+", "#", or "-" in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status ... Page 14 ... Single-Supply Comparators For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a "+", "#", or "-" in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status ... Page 15 ... Added automotive qualified part Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 15 © ...

MAX9144 Summary of contents

Page 1
... MAX941/MAX942/ MAX944. The MAX9140 are offered in tiny 5-pin SC70 and SOT23 packages. The MAX9141 and MAX9142 are available in 8-pin SOT23 and SO packages, while the MAX9144 is available in both 14-pin SO and TSSOP packages. Line Receivers Battery-Powered Systems Threshold Detectors/Discriminators ...
Page 2
... SC70 (derate 3.1mW/°C above +70°C) .............247mW Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability ...
Page 3
... Specification is for current flowing into or out of the output pin for V in shutdown. Note 9: Specified between any two channels in the MAX9142/MAX9144. Note 10: Specified as the difference between t Note 11: Applies to the MAX9141 only for both SHDN and LE. Note 12: Applies to the MAX9141 only. Comparator is active with LE driven high and is latched with LE driven low (V Figure 2 ...
Page 4
Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators (V = 3.0V 0V 15pF MAX9140 SUPPLY CURRENT vs. SUPPLY VOLTAGE 300 250 T = +85°C A 200 T = +25°C A 150 T = ...
Page 5
Low-Power, 3V/5V, Rail-to-Rail (V = 3.0V 0V 15pF INPUT OFFSET VOLTAGE vs. TEMPERATURE 500 400 300 200 100 0 -100 -200 -300 -400 -500 -50 -25 0 TEMPERATURE (°C) INPUT ...
Page 6
... Single-Supply Comparators (V = 3.0V 0V 15pF PROPAGATION DELAY ( 10mV 5.5V CC INPUT 50mV/div OUTPUT 2V/div 10ns/div PIN MAX9140 MAX9141 MAX9142 MAX9144 — — 1 — — — — — — 5 — — 6 — — 7 — — — — — ...
Page 7
... This tends to occur when the voltage on one input equal to the voltage on the other input. To counter the parasitic effects and noise, the MAX9140/ MAX9141/MAX9142/MAX9144 have an internal hystere- sis of 1.5mV. The hysteresis in a comparator creates two trip points: one for the rising input voltage and one for the falling input voltage (Figure 1) ...
Page 8
... Applications Information Circuit Layout and Bypassing The high-gain bandwidth of the MAX9140/MAX9141/ MAX9142/MAX9144 requires design precautions to realize the full high-speed capabilities of these com- parators. The recommended precautions are: 1) Use a PCB with a good, unbroken, low-induc- tance ground plane. ...
Page 9
... CC 10kΩ COAX LINE 20kΩ MAX9140 20kΩ Figure 6. Line Receiver Application _______________________________________________________________________________________ Single-Supply Comparators MAX9140 MAX9141 SERIAL MAX9142 DIGITAL INPUT MAX9144 OUTPUT ANALOG IN Figure 5. 3.3V Digitally Controlled Threshold Detector PROCESS: Bipolar 3V 0 CLEAN DIGITAL SIGNAL V = 3.3V DD VREFC V DD SDI ...
Page 10
... Single-Supply Comparators For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a "+", "#", or "-" in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status ...
Page 11
... Low-Power, 3V/5V, Rail-to-Rail For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a "+", "#", or "-" in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status ...
Page 12
... Single-Supply Comparators For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a "+", "#", or "-" in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status ...
Page 13
... Low-Power, 3V/5V, Rail-to-Rail For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a "+", "#", or "-" in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status ...
Page 14
... Single-Supply Comparators For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a "+", "#", or "-" in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status ...
Page 15
... Added automotive qualified part Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 15 © ...

MAX9144

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MAX9144 Summary of contents

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