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DS1841

Temperature-Controlled, NV, I

Logarithmic Resistor

2 _______________________________________________________________________________________

RECOMMENDED OPERATING CONDITIONS

= -40°C to +100°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.

Voltage Range on SDA, SCL, and

Relative to GND .........................................-0.5V to +6.0V

Voltage Range on RH, RW, A0, and

A1 Relative to GND ................................-0.5V to (V

+ 0.5V)

Operating Temperature Range .........................-40°C to +100°C

Programming Temperature Range .........................0°C to +70°C

Storage Temperature Range .............................-55°C to +125°C

Soldering Temperature .....................See IPC/JEDEC J-STD-020

RW Current............................................................................3mA

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Supply Voltage V

(Note 1) +2.7 +5.5 V

Input Logic 1

(SCL, SDA, A0, A1)

0.7 x

+ 0.3

Input Logic 0

(SCL, SDA, A0, A1)

-0.3

0.3 x

Resistor Inputs (RW, RH) V

RES

-0.3

+ 0.5

Wiper Current I

WIPER

2mA

DC ELECTRICAL CHARACTERISTICS

= +2.7V to +5.5V, T

= -40°C to +100°C, unless otherwise noted.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Input Leakage

(SDA, SCL, A0, A1)

-1 +1 μA

Supply Current I

CC2

(Note 2) 350 μA

Low-Level Output Voltage (SDA) V

3mA sink current 0 0.4 V

I/O Capacitance C

I/O

5 10 pF

Power-On Recall Voltage V

POR

(Note 3) 1.6 2.6 V

Power-Up Recall Delay t

(Note 4) 5 ms

Series Resistance R

3.6 k

Minimum Resistance

(GND to RW)

MIN

(Note 5) 370 

End-to-End Resistance

(GND to RW)

TOTAL

22 k

TOTAL

Tolerance T

= +25°C -20 +20 %

Temp Coefficient T

WR set to 40h ±250 ppm/°C

RH, RW Capacitance C

POT

10 pF

ABSOLUTE MAXIMUM RATINGS

1 2 3 4 5 6 7 ... 15 16

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