Power Dissipation (Note 2)

CERDIP Package .....................................................1000mW

Plastic Package ...........................................................800mW

Operating Temperature ..........................................0°C to +70°C

Storage Temperature ...................................... -65°C to + 160°C

Lead Temperature (Soldering, 10 sec)..............................300°C

Supply Voltage V+ ................................................................+6V

V- ................................................................. -9V

Analog Input Voltage (either input) (Note 1)...................V+ to V-

Reference Input Voltage (either input) ..........................V+ to V-

Clock Input ..................................................................Gnd to V+

Note 1: Input voltages may exceed the supply voltages provided the input current is limited to +100µA.

Note 2: Dissipation rating assumes device is mounted with all leads soldered to printed circuit board.

(Note 1)

Note 2: Tested with a low dielectric absorption integrating capacitor. See Component Selection Section.

Note 3: The temperature range can be extended to +70°C and beyond as long as the auto-zero and reference capacitors are

increased to absorb the higher leakage of the ICL7135.

Note 4: This specification relates to the clock frequency range over which the ICL7135 will correctly perform its various functions.

See “Max Clock Frequency” below for limitations on the clock frequency range in a system.

The electrical characteristics above are a reproduction of a portion of lntersil’s copyrighted (1983/1984) data book. This information does not constitute

any representation by Maxim that Intersil’s products will perform in accordance with these specifications. The “Electrical Characteristics Table” along

with the descriptive excerpts from the original manufacturer’s data sheet have been included in this data sheet solely for comparative purposes.

ICL7135

Multiplexed BCD Outputs

www.maximintegrated.com

Maxim Integrated │ 2

Absolute Maximum Ratings

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.

ICL7135 Electrical Characteristics

ANALOG

(Note 1)

(Note 2)

CHARACTERISTICS

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Zero Input Reading

Full Scale = 2.000V

-0.0000

±0.0000

+0.0000

Digital

Reading

Ratiometric Reading (Note 2)

Full Scale = 2.000V

+0.9995 +0.9999

+1.0000

Digital

Reading

Linearity over ± Full Scale

(Error of Reading from Best Straight Line)

0.5

1

Digital

Count Error

Differential Linearity (Difference Between Worst-

Case Step of Adjacent Counts and Ideal Step)

.01

LSB

Rollover error (Difference in Reading for Equal

Positive and Negative Voltage Near Full Scale)

0.5

1

Digital

Count Error

Noise (P-P Value Not Exceeded 95% of Time)

en

Full Scale = 2.000V

15

µV

Leakage Current at Input

1

10

pA

Zero Reading Drift

0.5

2

µV/°C

Scale Factor Temperature

Coefficient (Note 3)

TC

(ext. ref. 0 ppm/°C)

2

5

ppm/°C

DIGITAL

INPUTS

Clock In, Run/Hold

2.8

2.2

V

1.6

0.8

0.02

0.1

mA

0.1

10

µA

OUTPUTS

All Outputs

0.25

0.40

V

2.4

4.2

V

BUSY, STROBE, OVER-RANGE,

UNDER-RANGE, POLARITY

4.9

4.99

V

SUPPLY

+5V Supply Range

V+

+4

+5

+6

V

-5V Supply Range

V-

-3

-5

-8

V

+5V Supply Current

I+

1.1

3.0

mA

-5V Supply Current

I-

0.8

3.0

Power Dissipation Capacitance

vs. Clock Freq

40

pF

Clock

Clock Frequency (Note 4)

DC

2000

1200

kHz