1°C. Use Figure 3 to estimate the temperature error

with respect to the MAX6666 packages.

Low-Voltage Logic

Use the MAX6667 open-drain output to drive low-volt-

age devices. As shown in Figure 4, connect a pullup

resistor from the low-voltage logic supply to the

MAX6667 output. Limit the resistor’s current to about

1mA, thus maintaining an output low logic level of less

than 200mV.

Chip Information

TRANSISTOR COUNT: 6479

PROCESS: BiCMOS

High-Accuracy PWM Output Temperature

Sensors

6

_______________________________________________________________________________________

DOUT

DOUT

P

N

(a)

(b)

N

Figure 2. MAX6666/MAX6667 Output Configuration

MAX6667

+3.3V

2.5V

GND

TO LOGIC GATE INPUT

5.1k

Ω

DOUT

Figure 4. Low-Voltage Logic

0

1.0

0.5

2.0

1.5

3.0

2.5

3.5

04

6

28

10

MAX6666

TEMPERATURE ERROR vs. LOAD CURRENT

LOAD CURRENT (mA)

µMAX

SO

SOT23-6

Figure 3. MAX6666 Temperature Error Due to Load Current

IC

GND

1

5

6

IC

IC

MAX6666

MAX6667

SOT23

2

34

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Pin Configurations (continued)