Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsLinear ICsLinear IC - Comparator + lock CMOS, Push pull, TTL SOIC 8 N

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 supply

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, making

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 hys-

teresis ensures clean output switching, even with slow-

moving input signals.

The MAX9140/MAX9141/MAX9142/MAX9144 are higher-

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.

Applications

● Line Receivers

● Battery-Powered Systems

● Threshold Detectors/Discriminators

● 3V/5V Systems

● Zero-Crossing Detectors

● Sampling Circuits

Features

● 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

19-2064; Rev 4; 6/14

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.

PART* PIN-PACKAGE TOP MARK

MAX9140AAUK+T 5 SOT23 +AFEJ

MAX9140AAXK+T 5 SC70 +ASW

MAX9140AAXK/V+T 5 SC70 +AUG

MAX9140EXK-T 5 SC70 ACC

MAX9140EUK-T 5 SOT23 ADQP

MAX9141EKA-T 8 SOT23 AAFD

MAX9141ESA 8 SO —

MAX9142EKA-T 8 SOT23 AAFE

MAX9142ESA 8 SO —

MAX9144EUD 14 TSSOP —

MAX9144ESD 14 SO —

N.C.

OUT

GND

SHDN

IN-

SOT23/SO

OUTB

INB-

INB

GND

INA

INA-

OUTA

SOT23/SO

OUTD

IND-

IND

GND

INA

INA-

OUTA

INC

INC-

OUTC

OUTB

INB-

INB

TSSOP/SO

TOP VIEW

A D

B C

GND

IN-IN+

1 5 V

OUT

SC70/SOT23

3 4

MAX9142

MAX9141

MAX9144

MAX9140

MAX9140/MAX9141/

MAX9142/MAX9144

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

Single-Supply Comparators

Pin Congurations

Ordering Information

Summary of content (15 pages)

PAGE 1
MAX9140/MAX9141/ MAX9142/MAX9144 40ns, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators General Description Features 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. The MAX9141 features latch enable and device shutdown. These devices combine high speed, low power, and railto-rail inputs. Propagation delay is 40ns, while supply current is only 150μA per comparator.
PAGE 2
MAX9140/MAX9141/ MAX9142/MAX9144 40ns, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators Absolute Maximum Ratings Power-Supply Ranges Supply Voltage (VCC to GND)............................................+6V Differential Input Voltage....................... -0.3V to (VCC + 0.3V) Common-Mode Input Voltage to GND.. -0.3V to (VCC + 0.3V) LE Input Voltage (MAX9141 only)......... -0.3V to (VCC + 0.3V) SHDN Input Voltage (MAX9141 only)... -0.3V to (VCC + 0.3V) Current into Input Pins....................
PAGE 3
MAX9140/MAX9141/ MAX9142/MAX9144 40ns, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators Electrical Characteristics (continued) (VCC = 5V, VCM = 0V, SHDN = LE = VCC (MAX9141 only), CL = 15pF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.
PAGE 4
MAX9140/MAX9141/ MAX9142/MAX9144 40ns, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators Typical Operating Characteristics (VCC = 3.0V, VCM = 0V, CL = 15pF, VOD = 10mV, TA = +25°C, unless otherwise noted.) MAX9140 SUPPLY CURRENT vs. SUPPLY VOLTAGE OUTPUT LOW VOLTAGE vs. TEMPERATURE 250 ISINK = 4mA 328 TA = +85∞C TA = +25∞C 150 VOL (mV) TA = -40∞C 100 3 4 5 0 20 40 60 80 100 5.
PAGE 5
MAX9140/MAX9141/ MAX9142/MAX9144 40ns, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators Typical Operating Characteristics (continued) (VCC = 3.0V, VCM = 0V, CL = 15pF, VOD = 10mV, TA = +25°C, unless otherwise noted.) 400 0.2 VOS (µV) 0.4 0 -100 0 -0.2 -200 -0.4 -300 -0.6 -400 -0.8 -25 25 50 75 2 1 50 75 45 100 40 tPD+ 35 tPD- 30 25 VCMR0 20 40 60 80 0 20 40 60 80 TEMPERATURE (°C) INPUT OVERDRIVE (mV) PROPAGATION DELAY vs. TEMPERATURE PROPAGATION DELAY vs.
PAGE 6
MAX9140/MAX9141/ MAX9142/MAX9144 40ns, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators Typical Operating Characteristics (continued) (VCC = 3.0V, VCM = 0V, CL = 15pF, VOD = 10mV, TA = +25°C, unless otherwise noted.) OUTPUT 2V/div INPUT 50mV/div MAX9140TOC15 INPUT 50mV/div VOD = 10mV VCC = 5.5V MAX9140TOC14 VOD = 10mV VCC = 5.5V SINUSOID RESPONSE AT 4MHz PROPAGATION DELAY (tPD+) MAX9140TOC13 PROPAGATION DELAY (tPD-) VCC = 5.
PAGE 7
MAX9140/MAX9141/ MAX9142/MAX9144 40ns, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators Detailed Description The MAX9140/MAX9141/MAX9142/MAX9144 singlesupply comparators feature internal hysteresis, high speed, and low power. Their outputs are pulled to within 300mV of either supply rail without external pullup or pulldown circuitry. Rail-to-rail input voltage range and low-voltage single-supply operation make these devices ideal for portable equipment.
PAGE 8
MAX9140/MAX9141/ MAX9142/MAX9144 40ns, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators tS VOS DIFFERENTIAL INPUT VOLTAGE tH VOD tLPW VCC LE VCC 2 0 VOH OUT tPD tLPD VCC 2 VOL Figure 2. MAX9141 Timing Diagram with Latch Operator Output Stage Circuitry The MAX9140/MAX9141/MAX9142/MAX9144 contain a current-driven output stage as shown in Figure 4. During an output transition, ISOURCE or ISINK is pushed or pulled to the output pin.
PAGE 9
MAX9140/MAX9141/ MAX9142/MAX9144 40ns, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators VDD = 3.3V VCC MAX9140 MAX9141 MAX9142 MAX9144 ISOURCE SERIAL DIGITAL INPUT VREFC SDI VDD 8-BIT DAC MAX512 OUTPUT DACOUTC GND VSS MAX9140 ISINK GND ANALOG IN Figure 4. Output Stage Circuitry Figure 5. 3.3V Digitally Controlled Threshold Detector Chip Information PROCESS: Bipolar VCC = 3V 10kΩ 3V COAX LINE 20kΩ MAX9140 0 CLEAN DIGITAL SIGNAL 20kΩ Figure 6. Line Receiver Application www.
PAGE 10
MAX9140/MAX9141/ MAX9142/MAX9144 40ns, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators Package Information For the latest package outline information and land patterns (footprints), go to www.maximintegrated.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. PACKAGE TYPE PACKAGE CODE DOCUMENT NO. LAND PATTERN NO.
PAGE 11
MAX9140/MAX9141/ MAX9142/MAX9144 40ns, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators Package Information (continued) For the latest package outline information and land patterns (footprints), go to www.maximintegrated.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. www.maximintegrated.
PAGE 12
MAX9140/MAX9141/ MAX9142/MAX9144 40ns, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators Package Information (continued) For the latest package outline information and land patterns (footprints), go to www.maximintegrated.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. www.maximintegrated.
PAGE 13
MAX9140/MAX9141/ MAX9142/MAX9144 40ns, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators Package Information (continued) For the latest package outline information and land patterns (footprints), go to www.maximintegrated.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. www.maximintegrated.
PAGE 14
MAX9140/MAX9141/ MAX9142/MAX9144 40ns, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators Package Information (continued) For the latest package outline information and land patterns (footprints), go to www.maximintegrated.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. www.maximintegrated.
PAGE 15
MAX9140/MAX9141/ MAX9142/MAX9144 40ns, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators Revision History REVISION NUMBER REVISION DATE PAGES CHANGED 0 6/01 Initial release — 1 1/07 Updated Absolute Maximum Ratings with ±20mA current into input pin. 2 2 12/07 Added two new automotive grade products.