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General Description

The MAX9039–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 out-

puts, with a common-mode input voltage range that

extends 250mV beyond the supply rails. Input bias cur-

rent is typically 1.0pA, and input offset voltage is typi-

cally 0.5mV. Internal hysteresis ensures clean output

switching, even with slow-moving input signals. The

output stage features a unique design that limits supply

current surges while switching, virtually eliminating sup-

ply 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 that sink and

source 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

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 accura-

cy and 100ppm/°C tempco. The voltage references

feature a proprietary curvature-correction circuit and

laser-trimmed thin-film resistors. These series-mode ref-

erences can sink or source up to 500µA of load current.

Applications

Features

♦ Comparator + Precision Reference in UCSP/SOT23

♦ 2.5V to 5.5V Single-Supply Operation

(MAX9039–MAX9043)

♦ Low Supply Current (MAX9039/MAX9040/

MAX9041/MAX9050/MAX9051)

40µA Quiescent

50µA with 100kHz Switching

♦ 400ns Propagation Delay

♦ Rail-to-Rail Inputs

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

♦ Internal ±3mV Hysteresis

♦ 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

MAX9039–MAX9043/MAX9050–MAX9053

Micropower, Single-Supply, UCSP/SOT23

Comparator + Precision Reference ICs

________________________________________________________________ Maxim Integrated Products 1

19-1569; Rev 4; 10/02

Ordering Information

Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.

UCSP is a trademark of Maxim Integrated Products, Inc.

*UCSP reliability is integrally linked to the user’s assembly

methods, circuit board material, and environment. Refer to the

UCSP Reliability section of this data sheet for more information.

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+

15V

OUT

MAX9040

MAX9050

SOT23-5

IN-

REF

IN+

MAX9039

OUT

UCSP

Pin Configurations

Pin Configurations continued at end of data sheet.

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

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

PIN-

PACKAGE

6 UCSP-6

5 SOT23-5

6 SOT23-6

8 SO

5 SOT23-5-40°C to +85°C

MAX9040AEUK-T

ADNW

-40°C to +85°C

TEMP RANGEPART

MAX9039BEBT-T*

MAX9040BEUK-T

MAX9041AEUT-T

MAX9041BEUT-T

MAX9041AESA

MAX9041BESA

TOP

MARK

AAZ

ADNX

AAHF

AAHH

—

Precision Battery

Management

Window Comparators

IR Receivers

Level Translators

Digital Line Receivers

Summary of content (15 pages)

PAGE 1
9-1569; Rev 4; 10/02 Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs Features The MAX9039–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
MAX9039–MAX9043/MAX9050–MAX9053 Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs ABSOLUTE MAXIMUM RATINGS Supply Voltage (VCC to VEE) ....................................-0.3V to +6V All Other Pins ...................................(VEE - 0.3V) to (VCC + 0.3V) Output Short-Circuit Duration (OUT_, REF) ...............Indefinite Short Circuit to Either Supply Continuous Power Dissipation (TA = +70°C) 5-Pin SOT23 (derate 7.10mW/°C above +70°C)..........571mW 6-Bump UCSP (derate 3.
PAGE 3
Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs (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) Power-Up Time tPD+/ tPDtPU CONDITIONS MIN TYP VCC = 5V, ISOURCE = 8mA 4.45 4.85 VCC = 2.7V, ISOURCE = 3.5mA 2.3 2.
PAGE 4
MAX9039–MAX9043/MAX9050–MAX9053 Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs ELECTRICAL CHARACTERISTICS—B Grade (1% 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 CONDITIONS MIN TYP MAX ±1 ±9.
PAGE 5
Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs (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 ∆VREF/ ∆VCC Ripple Rejection Turn-On Settling Time tR(VREF) Capacitive Load Stability Range (Note 7) CL(VREF) CONDITIONS MIN TYP MAX UNITS VCC = 5V ±100mV, f = 120Hz 84 dB To VREF = 1% of final value 200 µs 0 4.
PAGE 6
Typical Operating Characteristics (continued) (VCC = 5V, VEE = 0V, VCM = 0V, IOUT = 0A, IREF = 0A, TA = +25°C, unless otherwise noted.) VCC = 2.7V 100 VCC = 5.0V 1 VCC = 2.7V 0 0.1 1 10 100 1000 0.1 1 0.01 10 0.1 1 10 40 VCC = 2.7V 20 0 80 VCC = 5.0V 600 VOD = 50mV 550 tPD (ns) 60 0 20 40 60 tPD+ TO VOUT = 50% OF FINAL VALUE tPD- TO VOUT = 50% OF FINAL VALUE 500 450 40 tPD+ TO VOUT = 10% OF FINAL VALUE VCC = 2.
PAGE 7
Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs PROPAGATION DELAY (tPD-) A MAX9039/43/50-53 toc13 A SWITCHING CURRENT (OUT RISING EDGE) MAX9039/43/50-53 toc12 MAX9039/43/50-53 toc11 PROPAGATION DELAY (tPD+) A B B C B 100ns/div 100ns/div A = IN+, 100mV/div B = OUT, 5V/div C = ICC, 1mA/div POWER-UP DELAY (OUT) A MAX9039/43/50-53 toc16 POWER-UP DELAY (REF) MAX9039/43/50-53 toc15 MAX9039/43/50-53 toc14 SWITCHING CURRENT (OUT FALLING EDGE) A 100ns/div A = IN+, 50mV/di
PAGE 8
Typical Operating Characteristics (continued) (VCC = 5V, VEE = 0V, VCM = 0V, IOUT = 0A, IREF = 0A, TA = +25°C, unless otherwise noted.
PAGE 9
Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs The MAX9039–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 (MAX9039/MAX904_) or 2.7V to 5.5V (MAX905_) supply.
PAGE 10
MAX9039–MAX9043/MAX9050–MAX9053 Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs amount of overshoot (or undershoot) and assist the circuit’s transient response. When an application is not subject to transient conditions, the REF capacitor can be omitted. VCC VCC IN+ VIN OUT 10kΩ IN- 0.1µF VEE MAX9039–MAX9043 MAX9050–MAX9053 Figure 2. Time Averaging of the Input Signal for Data Recovery 3) In this example, let VCC = 5V and VREF = 2.5V:  R2  VTH = 2.5 + 2.
PAGE 11
Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs 1 OUTA VCC MAX9042 MAX9052 VEE 2 1 OUT 2 REF 5 VCC 3 IN+ REF OUTB 8 7 INB- 6 3 INA+ REF REF 4 4 VEE MAX9040 MAX9050 6 (A2) 1 OUTA VEE 4 (A1) OUT INB+ 5 VCC MAX9043 MAX9053 REF 2 REF OUTB 10 8 REF 1 (B3) 7 (A3) VCC 3 INA- INB- 7 4 INA+ REF IN- 2 (B2) 3 (B1) IN+ 5 VEE INB+ 6 MAX9039 MAX9041 MAX9051 ( ) MAX9039 UCSP BUMPS. Selector Guide PART COMPARATORS PER PACKAGE VREF (V) MAX9039 1 1.
PAGE 12
MAX9039–MAX9043/MAX9050–MAX9053 Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs Pin Configurations (continued) TOP VIEW OUT 1 VEE 2 6 MAX9041 MAX9051 IN+ 3 VCC REF 1 8 IN- 2 5 REF IN+ 4 IN- 3 7 MAX9041 MAX9051 VEE 4 N.C. VCC 6 OUT 5 N.C.
PAGE 13
Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs 6L, UCSP.EPS SOT5L.EPS ______________________________________________________________________________________ 13 MAX9039–MAX9043/MAX9050–MAX9053 Package Information (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.
PAGE 14
Package Information (continued) DIM A A1 B C e E H L N E H INCHES MILLIMETERS MAX MIN 0.069 0.053 0.010 0.004 0.014 0.019 0.007 0.010 0.050 BSC 0.150 0.157 0.228 0.244 0.016 0.050 MAX MIN 1.35 1.75 0.10 0.25 0.35 0.49 0.19 0.25 1.27 BSC 3.80 4.00 5.80 6.20 0.40 SOICN .EPS (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.) 1.27 VARIATIONS: 1 INCHES TOP VIEW DIM D D D MIN 0.
PAGE 15
Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs 10LUMAX.EPS e 4X S 10 INCHES 10 H ÿ 0.50±0.1 0.6±0.1 1 1 0.6±0.1 BOTTOM VIEW TOP VIEW D2 MILLIMETERS MAX DIM MIN A 0.043 A1 0.006 0.002 A2 0.030 0.037 D1 0.116 0.120 D2 0.114 0.118 E1 0.116 0.120 0.114 0.118 E2 0.187 0.199 H 0.0157 0.0275 L L1 0.037 REF b 0.007 0.0106 e 0.0197 BSC c 0.0035 0.0078 0.0196 REF S α 0∞ 6∞ MAX MIN 1.10 0.15 0.05 0.75 0.95 3.05 2.95 2.89 3.00 3.05 2.95 2.89 3.00 4.75 5.05 0.40 0.70 0.