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Status

Active: In Production.

Data Sheet

FULL DATA SHEET (PDF, 5.8MB) Download   E-Mail

Description

The Maxim ICL7129A/MAX7129 is a high precision monolithic 4-1/2 digit A/D converter that directly drives a multiplexed liquid crystal display. Using a novel "successive integration" technique, the ICL7129A/MAX7129 has a ±20,000 count resolution on both 2.00000V and 200.00mV ranges. It features high impedance differential inputs, excellent differential linearity, true ratiometric operation and auto polarity. The only external active component required to make precision DVM/DPMs is a reference. The overrange and underrange outputs and the 10:1 range changing input facilitate the design of autoranging systems. The ICL7129A/MAX7129 detects and flags a LOW BATTERY condition and also checks for continuity, giving a visual indication and a logic level output which can be used to generate an audible signal. The MAX7129 has a fullscale accuracy of 0.0005%, resolution of 10µV, zero reading drift of 0.5µV/°C, an input bias of 10pA max, and a rollover error of less than 1 count. Maxim has reduced the noise of the ICL7129A to 3µV—significantly lower than the MAX7129.

Key Features

±19,999 Count Resolution 10pA Max Input Bias Current (MAX7129) 3µV Peak-to-Peak Noise (ICL7129A) Onboard Multiplexed LCD Display Driver 4-1/2 Digits, 4 Decimal Points, 3 Annunciators Instant Continuity Detector Low Battery Detector and Indicator Overrange/Underrange Outputs Precise 10:1 Range Select 10µV Resolution Significantly Improved ESD Protection Monolithic, Low Power CMOS Design Eliminates Need for Compensation Capacitor

Diagram

Typical Operating Circuit

Reliability Reports

Show FIT data for: ICL7129A MAX7129 Request Reliability Report for: ICL7129A MAX7129

Software/Models

none

Ordering Information

Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-17 of 17

ICL7129A	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
ICL7129AC/D			Active	DICE SALES;NA pin;0 mm² Land Pattern: Not Applicable Use pkgcode/variation: DICE*		See data sheet
ICL7129ACPL+2			Active	PDIP(W);40 pin;836 mm² Outline Drawing: 21-0044 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P40+1*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
ICL7129ACPL+			Active	PDIP(W);40 pin;836 mm² Outline Drawing: 21-0044 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P40+1*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
ICL7129ACPL			Active	PDIP(W);40 pin;836 mm² Outline Drawing: 21-0044 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P40-1*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
ICL7129ACPL-2			Active	PDIP(W);40 pin;836 mm² Outline Drawing: 21-0044 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P40-1*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
ICL7129ACQH+D			Active	PLCC;44 pin;312 mm² Outline Drawing: 21-0049 (PDF) Land Pattern: 90-0236 (PDF) Use pkgcode/variation: Q44+1*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
ICL7129ACQH-D			Active	PLCC;44 pin;312 mm² Outline Drawing: 21-0049 (PDF) Land Pattern: 90-0236 (PDF) Use pkgcode/variation: Q44-1*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
ICL7129ACQH-TD			Active	Land Pattern: Not Available	0°C to +70°C	See data sheet
ICL7129ACQH+TD			Active	Land Pattern: Not Available	0°C to +70°C	See data sheet
MAX7129	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX7129C/D			Active	DICE SALES;NA pin;0 mm² Land Pattern: Not Applicable Use pkgcode/variation: DICE*		See data sheet
MAX7129CJL			Active	Land Pattern: Not Available	0°C to +70°C	See data sheet
MAX7129CPL			Active	PDIP(W);40 pin;836 mm² Outline Drawing: 21-0044 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P40-1*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX7129CPL+			Active	PDIP(W);40 pin;836 mm² Outline Drawing: 21-0044 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P40+1*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX7129CQH-D			Active	PLCC;44 pin;312 mm² Outline Drawing: 21-0049 (PDF) Land Pattern: 90-0236 (PDF) Use pkgcode/variation: Q44-1*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX7129CQH-TD			Active	Land Pattern: Not Available	0°C to +70°C	See data sheet
MAX7129CQH+TD			Active	Land Pattern: Not Available	0°C to +70°C	See data sheet
MAX7129CQH+D			Active	PLCC;44 pin;312 mm² Outline Drawing: 21-0049 (PDF) Land Pattern: 90-0236 (PDF) Use pkgcode/variation: Q44+1*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis

Notes and Comments

ICL7129A - lowest noise MAX7129 - greater accuracy

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