Ultra-Low-Power, Open-Drain,

Single/Dual-Supply Comparators

6

_______________________________________________________________________________________

Typical Operating Characteristics (continued)

1000

1

1.0

2.0

2.2

2.4

RESPONSE TIME

10

100

SINGLE-SUPPLY VOLTAGE (V)

1.2

1.4

1.6

1.8

-20mV

-100mV

Ω

100

0.1

1.0

2.0

2.5

MAX9_4

SINK CURRENT

AT LOW SUPPLY VOLTAGES

1

10

SINGLE-SUPPLY VOLTAGE (V)

1.5

20

15

0

010

SHORT-CIRCUIT SINK CURRENT

vs. SUPPLY VOLTAGE

TOTAL SUPPLY VOLTAGE (V)

5

10

5

25

OUT CONNECTED TO V+

GND CONNECTED TO V-

5.0

0

-0.3

-0.1

0.3

MAX9_1/MAX972/MAX9_4

TRANSFER FUNCTION

1.0

4.0

IN+ INPUT VOLTAGE (mV)

0.1

3.0

2.0

4.5

0.5

3.5

2.5

1.5

-0.2

0

0.2

100k

Ω

+5V

10k

Ω

10

µF

18

2

0

20

60

100

RESPONSE TIME vs.

LOAD CAPACITANCE

6

14

LOAD CAPACITANCE (nF)

40

80

10

16

4

12

8

V- = 0V

-2

2

10

18

RESPONSE TIME FOR VARIOUS

0

4

RESPONSE TIME (

µs)

614

2

0

5

100

3

1

50mV

100mV

20mV

10mV