ICL7117

PRODUCTION

3 1/2 Digit ADCs with Display Hold

Data Sheet (Rev. 2) Product Selection Table

Part Models: 1
1ku List Price: Starting From $9.32

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Overview

Improved 2nd Source!
Hold Pin Allows Indefinite Display Hold
Guaranteed First Reading Recovery from Overrange
On-Board Display Drive Capability—No External Circuitry Required: LCD (ICL7116), LED (ICL7117)
High-Impedance CMOS Differential Inputs
Low Noise (< 15µV_P-P) Without Hysteresis or Overrange Hangover
Clock and Reference On-Chip
Zero Input Gives Zero Reading
True Polarity Indication for Precision Null Applications

The Maxim ICL7116 and ICL7117 are 3½ digit monolithic analog-to-digital converters. They differ from the Maxim ICL7106 and ICL7107 in that the ICL7116 and ICL7117 have a Hold pin, which makes it possible to hold or “freeze” a reading. These integrating ADCs have very high input impedances and directly drive LCD (ICL7116) and LED (ICL7117) displays.

Versatility and accuracy are inherent features of these converters. The dual-slope conversion technique automatically rejects interference signals common in industrial environments. The true differential input is particularly useful when making ratiometric measurements (ohms or bridge transducers). Maxim has added a zero-integrator phase to the ICL7116 and ICL7117, 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 1µV/°C.

Applications

Conductance
Current
Material Thickness
Pressure
Resistance
Speed
Temperature
Voltage

Part Models: 1
1ku List Price: Starting From $9.32

Documentation

Data Sheet 1

ICL7116-ICL7117: 3 1/2 Digit ADCs with Display Hold Data Sheet (Rev.2) 04/11/2017

Technical Articles 3

ADC Architectures 05/02/2002

LEDs Are Still Popular (and Improving) after All These Years 02/25/2003

Delta-Sigma ADCs Replace Integrating ADCs for Panel Meters 06/27/2003

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
ICL7117CPL+	Plastic Dual-In-Line, Wide (0.6in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

May 21, 2018 - 1752 ASSEMBLY
		pcn_1752
ICL7117CPL+	PRODUCTION	pcn_1752

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Analog to Digital Converters (ADCs) 1
MAX136	PRODUCTION	Low Power, 31⁄2 Digit A/D Converter with Display Hold

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