Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsLinear ICsLinear IC - Comparator + voltage ref circuit CMOS, Push pull, Rail-to-rail, TTL uMAX 10

19-1569; Rev 8; 9/13

Micropower, Single-Supply, UCSP/SOT23

Comparator + Precision Reference ICs

For pricing, delivery, and ordering information, please contact Maxim Direct

at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.

MAX9038–MAX9043/

MAX9050–MAX9053

General Description

The MAX9038–MAX9043 and MAX9050–MAX9053 fea-

ture combinations of low-power comparators and preci-

sion voltage references. Their operating voltage range

makes them ideal for both 3V and 5V systems. The

MAX9039/MAX9040/MAX9041/MAX9050/MAX9051

have a single comparator and reference consuming

only 40µA of supply current. The MAX9042/MAX9043/

MAX9052/MAX9053 have dual comparators and one

reference, and consume only 55µA of supply current.

Low-voltage operation and low supply current make

these devices ideal for battery-operated systems.

The comparators feature rail-to-rail inputs and outputs,

with a common-mode input voltage range that extends

250mV beyond the supply rails. Input bias current is

typically 1.0pA, and input offset voltage is typically

0.5mV. Internal hysteresis ensures clean output switch-

ing, even with slow-moving input signals. The output

stage features a unique design that limits supply cur-

rent surges while switching, virtually eliminating supply

glitches typical of many other comparators. This design

also minimizes overall power consumption under

dynamic conditions. The comparator outputs have rail-

to-rail, push-pull output stages except the MAX9038

has an open-drain output that sinks and sources up to

8mA. The propagation delay is 400ns, even with the

low-operating supply current.

The reference output voltage is set to 1.23V in the

MAX9038/MAX9039, to 2.048V in the MAX9040–

MAX9043, and to 2.500V in the MAX9050–MAX9053.

The MAX9040–MAX9043 and the MAX9050–MAX9053

are offered in two grades: an A grade with 0.4% initial

accuracy and 6ppm/°C tempco, and a B grade with 1%

initial accuracy (except MAX9038/MAX9039 have an

initial accuracy of ±0.4%) and 100ppm/°C tempco. The

voltage references feature a proprietary curvature-cor-

rection circuit and laser-trimmed thin-film resistors.

These series-mode references can sink or source up to

500µA of load current.

Applications

Features

o Comparator + Precision Reference in UCSP/SOT23

o 2.5V to 5.5V Single-Supply Operation

(MAX9038–MAX9043)

o Low Supply Current (MAX9038/MAX9039/MAX9040/

MAX9041/MAX9050/MAX9051)

40µA Quiescent

50µA with 100kHz Switching

Open-Drain Output MAX9038

o 400ns Propagation Delay

o Rail-to-Rail Inputs

o Rail-to-Rail Output Stage Sinks and Sources 8mA

o Internal ±3mV Hysteresis

o Voltage Reference Offers

±0.4% (max) Initial Accuracy (A Grade)

6ppm/°C (typ) Temperature Coefficient (A Grade)

Stable for 0 to 4.7nF Capacitive Loads

Ordering Information

UCSP is a trademark of Maxim Integrated Products, Inc.

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

Typical Operating Circuit and Functional Diagrams appear

at end of data sheet.

Ordering Information continued at end of data sheet.

Selector Guide appears at end of data sheet.

TOP VIEW (BUMPS ON BOTTOM) TOP VIEW

REFIN+

OUT

MAX9040

MAX9050

SOT23

IN-

REF

IN+

MAX9038

MAX9039

OUT

UCSP

PART TEMP RANGE

PIN-

PACKAGE

TOP

MARK

MAX9038BABT+T -40°C to +125°C 6 UCSP ADW

MAX9039BEBT+T -40°C to +85°C 6 UCSP AAZ

MAX9040AEUK+T -40°C to +85°C 5 SOT23 ADNW

MAX9040BEUK+T -40°C to +85°C 5 SOT23 ADNX

MAX9041AEUT+T -40°C to +85°C 6 SOT23 AAHF

MAX9041BEUT+T -40°C to +85°C 6 SOT23 AAHH

MAX9041AESA -40°C to +85°C 8 SO —

MAX9041BESA -40°C to +85°C 8 SO —

Pin Configurations

Pin Configurations continued at end of data sheet.

Precision Battery

Management

Window Comparators

IR Receivers

Level Translators

Digital Line Receivers

Summary of content (15 pages)

PAGE 1
MAX9038–MAX9043/ MAX9050–MAX9053 Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs General Description Features The MAX9038–MAX9043 and MAX9050–MAX9053 feature combinations of low-power comparators and precision voltage references. Their operating voltage range makes them ideal for both 3V and 5V systems. The MAX9039/MAX9040/MAX9041/MAX9050/MAX9051 have a single comparator and reference consuming only 40µA of supply current.
PAGE 2
MAX9038–MAX9043/ MAX9050–MAX9053 Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs ABSOLUTE MAXIMUM RATINGS Supply Voltage (VCC to VEE) ....................................-0.3V to +6V OUT (MAX9038) .......................................................-0.3V to +6V All Other Pins ...................................(VEE - 0.3V) to (VCC + 0.3V) Current into Input Pins ......................................................±20mA Output Short-Circuit Duration (OUT_, REF) ...............
PAGE 3
MAX9038–MAX9043/ MAX9050–MAX9053 Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs ELECTRICAL CHARACTERISTICS—A Grade (0.4% Initial Accuracy) (continued) (VCC = +5V, VEE = 0V, VCM = 0V, IOUT = 0A, IREF = 0A, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2) PARAMETER SYMBOL Output Voltage High VOH Output Rise/Fall Times tR/tF Output Propagation Delay (Note 9) tPD+/ tPD- CONDITIONS MIN 4.45 4.85 VCC = 2.7V, ISOURCE = 3.5mA 2.3 2.
PAGE 4
MAX9038–MAX9043/ MAX9050–MAX9053 Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs ELECTRICAL CHARACTERISTICS—B Grade (1% Initial Accuracy) (Note 12) (continued) (VCC = 5V, VEE = 0V, VCM = 0V, VPU = 1.8V, RPU = 10kΩ, IOUT = 0A, IREF = 0A, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS ±1 ±9.
PAGE 5
MAX9038–MAX9043/ MAX9050–MAX9053 Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs ELECTRICAL CHARACTERISTICS—B Grade (1% Initial Accuracy) (Note 12) (continued) (VCC = 5V, VEE = 0V, VCM = 0V, VPU = 1.8V, RPU = 10kΩ, IOUT = 0A, IREF = 0A, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.
PAGE 6
MAX9038–MAX9043/ MAX9050–MAX9053 Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs Typical Operating Characteristics (continued) (VCC = 5V, VEE = 0V, VPU = 1.8V, RPU = 10kΩ, VCM = 0V, IOUT = 0A, IREF = 0A, TA = +25°C, unless otherwise noted.) MAX9042/MAX9043/MAX9052/MAX9053 SUPPLY CURRENT vs. SWITCHING FREQUENCY VCC = 5V 40 VCC = 2.7V VCC = 2.7V 150 100 50 1 VCC = 2.7V 10 0 100 0.1 0.01 1M 10k 0.1 1 10 100 1000 0.
PAGE 7
MAX9038–MAX9043/ MAX9050–MAX9053 Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs Typical Operating Characteristics (continued) (VCC = 5V, VEE = 0V, VPU = 1.8V, RPU = 10kΩ, VCM = 0V, IOUT = 0A, IREF = 0A, TA = +25°C, unless otherwise noted.) PROPAGATION DELAY vs. CAPACITIVE LOAD (VCC = 2.7V) 120 VOD = 50mV 550 VCC = 5V tPD (ns) 100 80 500 tPD- TO VOUT = 50% OF FINAL VALUE tPD+ TO VOUT = 10% OF FINAL VALUE VCC = 2.
PAGE 8
MAX9038–MAX9043/ MAX9050–MAX9053 Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs Typical Operating Characteristics (continued) (VCC = 5V, VEE = 0V, VPU = 1.8V, RPU = 10kΩ, VCM = 0V, IOUT = 0A, IREF = 0A, TA = +25°C, unless otherwise noted.
PAGE 9
MAX9038–MAX9043/ MAX9050–MAX9053 Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs Typical Operating Characteristics (continued) (VCC = 5V, VEE = 0V, VPU = 1.8V, RPU = 10kΩ, VCM = 0V, IOUT = 0A, IREF = 0A, TA = +25°C, unless otherwise noted.
PAGE 10
MAX9038–MAX9043/ MAX9050–MAX9053 Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs Detailed Description The MAX9038–MAX9043 and MAX9050–MAX9053 feature single/dual, low-power, low-voltage comparators and a precision voltage reference. They operate from a single 2.5V to 5.5V (MAX903_/MAX904_) or 2.7V to 5.5V (MAX905_) supply.
PAGE 11
MAX9038–MAX9043/ MAX9050–MAX9053 Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs Board Layout and Bypassing VCC VCC IN+ VIN OUT 10kΩ IN- 0.1μF MAX9038–MAX9043 MAX9050–MAX9053 VEE Figure 2. Time Averaging of the Input Signal for Data Recovery ⎛ R2 ⎞ VTH = 2.5 + 2.5 ⎜ ⎟ ⎝ R1 + R2 ⎠ and ⎛ R2 ⎞ VTL = 2.5 ⎜1 − ⎟ R1 + R2 ⎠ ⎝ 4) Select R2. In this example, we will choose 1kΩ. 5) Select VHYS. In this example, we will choose 50mV.
PAGE 12
MAX9038–MAX9043/ MAX9050–MAX9053 Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs Functional Diagrams 1 OUTA 1 VEE 2 OUT VCC MAX9042 MAX9052 2 REF 5 VCC 3 IN+ REF OUTB 8 7 INB- 6 3 INA+ REF REF 4 MAX9040 MAX9050 6 (A2) VEE 4 (A1) OUT 4 VEE INB+ 5 1 OUTA VCC MAX9043 MAX9053 10 REF 2 REF OUTB 8 REF 1 (B3) 7 (A3) VCC 3 INA- INB- 7 4 INA+ REF IN- 2 (B2) 3 (B1) IN+ 5 VEE MAX9038 MAX9039 MAX9041 MAX9051 INB+ 6 ( ) MAX9038/MAX9039 UCSP BUMPS.
PAGE 13
MAX9038–MAX9043/ MAX9050–MAX9053 Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs Pin Configurations (continued) TOP VIEW + OUT 1 VEE 2 MAX9041 MAX9051 6 VCC 5 REF REF 1 IN- 2 4 IN- N.C. OUTA 1 7 VCC REF 2 3 6 OUT VEE 4 5 N.C.
PAGE 14
MAX9038–MAX9043/ MAX9050–MAX9053 Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs 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. 14 PACKAGE TYPE PACKAGE CODE OUTLINE NO.
PAGE 15
MAX9038–MAX9043/ MAX9050–MAX9053 Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs Revision History PAGES CHANGED REVISION NUMBER REVISION DATE 0 10/99 Initial release — 1 1/00 Corrections to initial release — 2 4/00 Adding new part — 3 4/00 Increase in Max Supply Current specifications — 4 10/02 Adding UCSP package for MAX9039 — 5 10/07 Adding input current ratings in Absolute Maximum Ratings, style changes — 6 3/09 Update Chip Information, Package Info