3

Scale Factor Temperature Coefficient

(Note 4)

-

1

5

REFERENCE VOLTAGE

Referred to V+, 25k

Ω Between V+ and REF OUT

-2.4

-2.8

-3.2

V

Ref Out Temperature Coefficient

25k

Ω Between V+ and REF OUT (Note 4)

-

80

-

POWER SUPPLY CHARACTERISTICS

Supply Current V+ to GND, I+

-

700

1500

µA

Pins 2 - 21, 25, 26, 27, 29; Open

-

700

1500

µA

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

DIGITAL OUTPUTS

3.5

4.3

-

V

-

±0.20

±0.40

V

Output Leakage Current

Pins 3 - 16 High Impedance

-

±0.01

±1

µA

Control I/O Pullup Current

(Note 4)

-5

-

µA

Control I/O Loading

HBEN Pin 19 LBEN Pin 18 (Note 4)

-

−

50

pF

DIGITAL INPUTS

Pins 18 - 21, 26, 27 Referred to GND

3.0

-

-

V

Pins 18 - 21, 26, 27 Referred to GND

-

-

1

V

Input Pull-Up Current

-

5

-

µA

Input Pull-Up Current

-

25

-

µA

Input Pull-Down Current

-

5

-

µA

TIMING CHARACTERISTICS

(Note 4)

50

-

-

ns

NOTES:

1. Input voltages may exceed the supply voltages provided the input current is limited to

±100µA.

2. Due to the SCR structure inherent in the process used to fabricate these devices, connecting any digital inputs or outputs to voltages

greater than V+ or less than GND may cause destructive device latchup. For this reason it is recommended that no inputs from sources

other than the same power supply be applied to the ICL7109 before its power supply is established, and that in multiple supply systems

the supply to the ICL7109 be activated first.

3. This limit refers to that of the package and will not be obtained during normal operation.

4. This parameter is not production tested, but is guaranteed by design.

6. A full scale voltage of 2.048V is used because a full scale voltage of 4.096V exceeds the devices Common Mode Voltage Range.

7. For CERDIP package the Ratiometric error can be -4 (Min).

Unless Otherwise Specified (Continued)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

ICL7109