ICL7106CQH データシートの表示（PDF） - Maxim Integrated

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ICL7106CQH

3½ Digit A/D Converters

Maxim Integrated 

AVAILABLE

ICL7106/7107

ICL7106/ICL7107

31⁄2 Digit A/D Converters

General Description

The Maxim ICL7106/ICL7107 are monolithic analog-to-

digital converters (ADCs). They have very high input

impedances and require no external display drive cir-

cuitry. On-board active components include polarity and

digit drivers, segment decoders, voltage reference and

a clock circuit. The ICL7106 will directly drive a nonmulti-

plexed liquid crystal display (LCD), whereas the ICL7107

will directly drive a common anode light emitting diode

(LED) display.

Versatility and accuracy are inherent features of these

converters. The dual-slope conversion technique auto-

matically rejects interference signals common in industri-

al environments. The true differential input and reference

are particularly useful when making ratiometric measure-

ments (ohms or bridge transducers). Maxim has added

a zero-integrator phase to the ICL7106 and ICL7107,

eliminating overrange hangover and hysteresis effects.

Finally, these devices offer high accuracy by lowering

rollover error to less than one count and zero reading

drift to less than 1FV/NC.

These devices are used in a wide range of digital panel

meter applications. Most applications, however, involve

the measurement and display of analog data.

Pressure

Voltage

Resistance

Applications

TeFmupenractutrieonal SDpieaedgrams

Conductance

Current

Material

Thickness

Typical Operating Circuit

Features

S Improved 2nd Source (see Page 3 for “Maxim

Advantage”)

S Guaranteed First Reading Recovery from

Overrange

S On-Board Display Drive Capability—No External

Circuitry Required

LCD—ICL7106

LED—ICL7107

S High-Impedance CMOS Differential Inputs

S Low Noise (< 15µVP-P) without Hysteresis or

Overrange Hangover

S Clock and Reference On-Chip

S True Differential Reference and Input

S True Polarity Indication for Precision Null

Applications

S Monolithic CMOS Design

Order Information

PART

TEMP RANGE PIN-PACKAGE

ICL7106CPL+

0°C to +70°C

40 PDIP

ICL7106CQH+

0°C to +70°C

44 PLCC

ICL7107CPL+

0°C to +70°C

40 PDIP

ICL7107CQH+

0°C to +70°C

44 PLCC

+Denotes a lead(Pb)-free/RoHS-compliant package.

Pin Configurations

+

ANALOG

INPUT

LCD DISPLAY

ICL7106

9V

VREF

FULL-SCALE INPUT VREF

TO ANALOG

Pin 2C.0o00nVfigurations1.0a0p0Vpear at end of data sheet. COMMON (P32)

Fun2c0t0i.o0mnVal Diagram100s.0cmoV ntinued at end of data sheet.

PDIP

Pin Configurations continued at end of data sheet

UCSP is a trademark of Maxim Integrated Products, Inc.

The "Maxim Advantage" signifies an upgraded quality level. At no additional cost we offer a second-source device that is subject to

the following: guaranteed performance over temperature along with tighter test specifications on many key parameters; and device

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at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.

19-0948; Rev 1; 1/12

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