MAXIM MAX965, MAX970 Technical data

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.

General Description

The MAX965–MAX970 single/dual/quad micropower
comparators feature rail-to-rail inputs and outputs, and
fully specified single-supply operation down to +1.6V.
These devices draw less than 5µA per comparator and
have open-drain outputs that can be pulled beyond V

CC

to 6V (max) above ground. In addition, their rail-to-rail
input common-mode voltage range makes these com­parators suitable for ultra-low-voltage operation.

A +1.6V to +5.5V single-supply operating voltage range
makes the MAX965 family of comparators ideal for 2-cell
battery-powered applications. The MAX965/MAX967/
MAX968/MAX969 offer programmable hysteresis and
an internal 1.235V ±1.5% reference. All devices are
available in either space-saving 8-pin µMAX®or 16-pin
QSOP packages.

________________________Applications

2-Cell Battery-Powered/Portable Systems
Window Comparators
Threshold Detectors/Discriminators
Mobile Communications
Voltage-Level Translation
Ground/Supply-Sensing Applications

____________________________Features

♦ Ultra-Low Single-Supply Operation down to +1.6V

♦ Rail-to-Rail Common-Mode Input Voltage Range

♦ 3µA Quiescent Supply Current per Comparator

♦ Open-Drain Outputs Swing Beyond V

CC

♦ 1.235V ±1.5% Precision Internal Reference

(MAX965/967/968/969)

♦ 10µs Propagation Delay (50mV overdrive)

♦ Available in Space-Saving Packages:

8-Pin µMAX (MAX965–MAX968)
16-Pin QSOP (MAX969/MAX970)

MAX965–MAX970

Single/Dual/Quad, Micropower,

Ultra-Low-Voltage, Rail-to-Rail I/O Comparators

________________________________________________________________ Maxim Integrated Products 1

__________Typical Operating Circuit

19-1226; Rev 3; 2/07

Ordering Information

PART

INTERNAL

REFERENCE

PROGRAMMABLE

HYSTERESIS

MAX965

Yes Yes

MAX966

No No

MAX967

Yes Yes

MAX968

Yes Yes

MAX969

Yes Yes

MAX970

No No

COMPARATORS

PER

PACKAGE

1

2

2

2

4

4

_____________________Selector Guide

Ordering Information continued on last page.

Pin Configurations appear at end of data sheet.

µMAX is a registered trademark of Maxim Integrated Products,
Inc.

PART TEMP RANGE

MAX965ESA -40°C to +85°C

MAX965EUA-T -40°C to +85°C

MAX966ESA -40°C to +85°C

MAX966EUA-T -40°C to +85°C

MAX967ESA -40°C to +85°C

MAX967EUA-T -40°C to +85°C

PIN­PACKAGE

8 SO

8 µMAX-8

8 SO

8 µMAX-8

8 SO

8 µMAX-8

PKG

CODE

S8-2

U8-1

S8-2

U8-1

S8-2

U8-1

V

IN

IN+3

IN-4

HYST

5

REF6

1.235V

V

CC

7

V

CC

OUT

8

MAX965

GND

1

R

PULLUP

V

OUT

MAX965–MAX970

Single/Dual/Quad, Micropower,
Ultra-Low-Voltage, Rail-to-Rail I/O Comparators

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VCC= +1.6V to +5.5V, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at VCC= 3V and TA= +25°C.)

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.

Supply Voltage (VCC) ............................................................+6V

Voltages

IN_-, IN_+, REF, HYST ..........................-0.3V to (V

CC

+ 0.3V)

OUT_ ...............................................................-0.3V to +6.0V

Current into Input Pins ......................................................±20mA

Duration of OUT_ Short Circuit to GND or V

CC

..........Continuous

Continuous Power Dissipation

8-Pin SO (derate 5.88mW/°C above +70°C)...............471mW

8-Pin µMAX (derate 4.10mW/°C above +70°C) ..........330mW

14-Pin SO (derate 8.33mW/°C above +70°C).............667mW

16-Pin SO (derate 8.70mW/°C above +70°C).............696mW

16-Pin QSOP (derate 5.70mW/°C above +70°C)........457mW

Operating Temperature Range ...........................-40°C to +85°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

6.0

10.00°C to +85°C

µMAX
package

QSOP package

-40°C to +85°C

Input Offset Voltage V

OS

-40°C to +85°C

0°C to +85°C

QSOP package

SO package 3.0

Common-mode
range = -0.25V
to 1.3V,
V

CC

> 1.8V

mV

V

-0.25 V

CC

- 0.25

TA= -40°C to +85°C

SO/QSOP packages, TA= -40°C to +85°C

Full common-mode range, TA= +25°C

Common-mode range = -0.25V to (VCC- 0.25V)

All packages, TA= 0°C to +85°C

VCCstepped 0V to 5V

MAX970

MAX966

MAX967/MAX968

TA= +25°C

MAX969

1.7V ≤ VCC≤ 5.5V

CONDITIONS

7.0C

IN

Input Capacitance pF

0.2I

OS

Input Offset Current

0.001 ±50

nA

0.001 ±5

I

B

Input Bias Current

4.0

-0.25 V

CC

V

CMR

Common-Mode Voltage Range

V

0.1 1.0

PSRRPower-Supply Rejection Ratio

1.7 5.5V

CC

Supply Voltage Range V

1.6 5.5

mV/V

20

Power-Up Time
(VCCto output valid)

11 18

µA

7.0 12

I

CC

Supply Current

6.0 10

10 16

14 22

UNITSMIN TYP MAXSYMBOLPARAMETER

4.0

15.0

10.0

Full common­mode range

7.0

µMAX package, TA= -40°C to +85°C 1.8 5.5

MAX965

Comparator Minimum
Operating Voltage

V1.0

µs

pA

HYST = REF mV±1V

HYST

Input Hysteresis

2 _______________________________________________________________________________________

COMPARATOR

POWER SUPPLIES

SO package

µMAX
package

MAX965–MAX970

Single/Dual/Quad, Micropower,

Ultra-Low-Voltage, Rail-to-Rail I/O Comparators

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

(VCC= +1.6V to +5.5V, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at VCC= 3V and TA= +25°C.)

f = 100Hz to 100kHz, C

REF

= 0.1µF

HYST = REF

SO package

CONDITIONS

µV

RMS

10Output Voltage Noise

nA200 400I

REF-

Sink Current

µA15 50I

REF+

Source Current

V

1.125 1.235 1.255

V

REF

Reference Voltage

UNITSMIN TYP MAXSYMBOLPARAMETER

1.205 1.235 1.265

__________________________________________Typical Operating Characteristics

(VCC= +3.0V, R

PULLUP

= 100kΩ, VCM= 0V, TA= +25°C, unless otherwise noted.)

10

CMRRCommon-Mode Rejection Ratio mV/V1.5 4.0

f = 100Hz to 100kHz, C

REF

= 1000pFInput Voltage Noise e

n

µV

RMS

0.2I

OUT

= 100µA, 1.6V < VCC< 2.7V

OUT Output Voltage Low V

OL

V

20

Propagation Delay t

PD-

µs

10

R

PULLUP

= 1MΩ,

C

LOAD

= 15pF, high to low

10mV overdrive

50mV overdrive

QSOP package

HYST Input Voltage Range V

V

REF -

0.05

V

REF

I

HYST

HYST Input Leakage nA±10

Hysteresis Gain V/V1.0

µMAX package, TA= -40°C to +85°C 1.185 1.235 1.285

µMAX package, TA= 0°C to +85°C 1.205 1.235 1.265

0.4I

OUT

= 500µA, 2.7V < VCC< 5.5V

VCC= 5.5V, V

OUT

= 5.5V

OUT Output Leakage Current I

LEAK

nA1 100

VCC= 1.6V, V

OUT

= 1.6V

REFERENCE

MAX965 SUPPLY CURRENT

13

12

11

10

9

8

7

6

SUPPLY CURRENT (µA)

5

4

3

-40 -20 0 20 40 60 80 100

-60

vs. TEMPERATURE

VCC = 5.0V

VCC = 3.0V

VCC = 2.0V

TEMPERATURE (°C)

MAX966 SUPPLY CURRENT

vs. TEMPERATURE

9.0

8.5

MAX965-TOC1b

8.0

7.5

7.0
VCC = 5.0V

6.5

6.0

5.5

SUPPLY CURRENT (µA)

5.0

V

> V

IN+

IN-

4.5

4.0

-60

VCC = 2.0V

-40 -20 0 20 40 60 80 100
TEMPERATURE (°C)

VCC = 3.0V

V

IN+

> V

MAX965-TOC2b

IN-

MAX967/MAX968 SUPPLY CURRENT

vs. TEMPERATURE

15

14

13

12

11

10

9

8

SUPPLY CURRENT (µA)

7

6

5

-60

VCC = 5.0V

VCC = 2.0V

-40 -20 0 20 40 60 80 100
TEMPERATURE (°C)

VCC = 3.0V

V

> V

IN+

IN-

MAX965-TOC3b

MAX965–MAX970

Single/Dual/Quad, Micropower,
Ultra-Low-Voltage, Rail-to-Rail I/O Comparators

4 _______________________________________________________________________________________

)

_____________________________Typical Operating Characteristics (continued)

(VCC= +3.0V, R

PULLUP

= 100kΩ, VCM= 0V, TA= +25°C, unless otherwise noted.)

8

-60

MAX969 SUPPLY CURRENT

vs. TEMPERATURE

MAX965-TOC4b

TEMPERATURE (°C)

SUPPLY CURRENT (µA)

12

10

14

16

18

20

-40 -20 0 20 40 60 80 100

V

IN+

> V

IN-

VCC = 5.0V

VCC = 2.0V

VCC = 3.0V

7

-60

MAX970 SUPPLY CURRENT

vs. TEMPERATURE

MAX965-TOC5b

TEMPERATURE (°C)

SUPPLY CURRENT (µA)

8

10

9

11

12

13

14

15

16

-40 -20 0 20 40 60 80 100

V

IN+

> V

IN-

VCC = 2.0V

VCC = 3.0V

VCC = 5.0V

0

0

SUPPLY CURRENT PER COMPARATOR

vs. SUPPLY VOLTAGE

(EXCLUDES REFERENCE CURRENT)

MAX965-TOC6b

SUPPLY VOLTAGE (V)

SUPPLY CURRENT PER COMPARATOR (µA)

0.5

1.0

1.5

2.0

2.5

3.0

3.5

123456

V

IN+

> V

IN-

MAX965 SUPPLY CURRENT

(INCLUDES REFERENCE CURRENT)

14

12

10

8

6

SUPPLY CURRENT (µA)

4

2

0

0

123 4 5 6

PROPAGATION DELAY (t

14

13

12

11

10

VCC = 5.0V

9

DELAY (µs)

8

7

6

5

4

-40 -20 0 20 40 60 80 100

-60

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

vs. TEMPERATURE

VCC = 2.0V

VCC = 3.0V

TEMPERATURE (°C)

V

> V

IN+

)

PD-

VOD = 50mV

IN-

COMPARATOR OUTPUT SHORT-CIRCUIT

SINK CURRENT vs. TEMPERATURE

14

12

MAX965/70-TOC7a

10

8

6

4

2

OUTPUT SHORT-CIRCUIT SINK CURRENT (mA)

0

VCC = 5V

VCC = 2V

-60 -20 0-40 20 40 60 80 100
TEMPERATURE (°C)

PROPAGATION DELAY (t

vs. CAPACITIVE LOAD

70

VOD = 50mV

60

MAX965-TOC10a

50

40

30

DELAY (µs)

20

10

0

0.001 0.01 0.1
CAPACITIVE LOAD (µF

VCC = 2.0V

VCC = 3.0V

V

< V

IN+

VCC = 3V

)

PD-

VCC = 5.0V

IN-

5.0

4.5

4.0

MAX965/70 -TOC8a

3.5

3.0

2.5

2.0

1.5

OUTPUT LOW VOLTAGE (V)

1.0

0.5

0

042681012

30

25

MAX4108/9-11a

20

15

DELAY (µs)

10

5

0

0

COMPARATOR OUTPUT

LOW VOLTAGE vs. SINK CURRENT

V

= < V

IN+

IN-

V

= 2V

V

CC

PROPAGATION DELAY (t

= 3V

CC

SINK CURRENT (mA)

V

= 5V

CC

)

PD-

vs. INPUT OVERDRIVE

VCC = 2.0V

20 40 60 80 100 120 140 160

INPUT OVERDRIVE (mV)

VCC = 3.0V

VCC = 5.0V

MAX965/70-09a

MAX965-TOC12a

MAX965–MAX970

Single/Dual/Quad, Micropower,

Ultra-Low-Voltage, Rail-to-Rail I/O Comparators

_______________________________________________________________________________________ 5

_____________________________Typical Operating Characteristics (continued)

(VCC= +3.0V, R

PULLUP

= 100kΩ, VCM= 0V, TA= +25°C, unless otherwise noted.)

IN+

OUT

PROPAGATION DELAY (t

PD+

)

MAX965/70-TOC15

2µs/div

VCC = 3V

50mV/div

2V/div

50mV/div

2V/div

IN+

OUT

PROPAGATION DELAY (t

PD-

)

MAX965/70-TOC16b

2µs/div

VCC = 3V

SUPPLY CURRENT PER COMPARATOR

vs. OUTPUT TRANSITION FREQUENCY

4.0

3.8

3.6

3.4

3.2

3.0

2.8

2.6

2.4

2.2

SUPPLY CURRENT PER COMPARATOR (µA)

2.0

0.01 0.1 1 10 100
OUTPUT TRANSITION FREQUENCY (kHz)

VCC = 5.5V

VCC = 1.6V

PROGRAMMED HYSTERESIS

vs. COMMON-MODE VOLTAGE

40

35

30

25

20

15

10

PROGRAMMED HYSTERESIS (mV)

V

= 5.0V

CC

5

0

= 22mV (PROGRAMMED)

V

HYST

0 1.0 1.5 2.0 2.50.5 3.0 3.5 4.0 4.5 5.0

COMMON-MODE VOLTAGE (V)

200

190

180

MAX965/70 TOC13A

170

160

150

140

130

INPUT OFFSET VOLTAGE (µV)

120

110

100

-60 -20 0-40 20 40 60 80 100

1.2345

1.2340

MAX965/70 TOC16

1.2335

1.2330

REFERENCE VOLTAGE (V)

1.2325

1.2320

INPUT OFFSET VOLTAGE

vs. TEMPERATURE

MAX965/70-TOC14a

TEMPERATURE (°C)

REFERENCE VOLTAGE

vs. TEMPERATURE

VCC = 5V

VCC = 2V

VCC = 3V

-60 -20 0-40 20406080100
TEMPERATURE (°C)

MAX965/70 TOC6a

INPUT BIAS CURRENT

vs. TEMPERATURE

4.0

3.5

3.0

2.5

2.0

1.5

1.0

INPUT BIAS CURRENT (pA)

0.5

0

-40-200 20406080100
TEMPERATURE (°C)

VCC = 5.0V

REFERENCE VOLTAGE
vs. SUPPLY VOLTAGE

1.239

1.237

1.235

1.233

1.231

1.229

REFERENCE VOLTAGE (V)

1.227

1.225

1.223

1.0 1.8 2.6 3.4 4.2 5.0 5.8
V

(V)

CC

MAX965/70-TOC15a

VCC = 3.0V

MAX965/70-TOC13

REFERENCE VOLTAGE (V)

REFERENCE VOLTAGE

vs. SOURCE CURRENT

1.4

1.3

1.2

1.1

1.0

0.9

0.8

0.7

0.6
0200100 300 400 500 600 700

SOURCE CURRENT (µA)

MAX965/70-TOC18a