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Active: In Production.

Data Sheet

FULL DATA SHEET (PDF, 4.3MB) Download   E-Mail

Description

The MAX135 is a CMOS 15-bit, binary-output analog-to-digital converter (ADC). Multi-slope integration provides low-noise and high-resolution conversions in less time than standard integrating ADCs: The MAX135 is tested at 16 conversions per second, but operates at up to 6 times that rate. The MAX135 uses Super LSBs with data averaging to achieve 18-bit resolution. Supply current is 125µA maximum during normal operation and only 10µA maximum in sleep mode. Low conversion noise allows tested operation at only 300mV full scale (15µV per LSB). A simple 8-bit parallel data bus and three control lines easily interface to all common microprocessors, and twos-complement output coding simplifies bipolar measurements. High resolution and compact size make the MAX135 ideal for data loggers, numerical control systems, weight scales, data-acquisition systems, and panel meters. The MAX135 comes in 28-pin DIP and SO packages in both commercial and extended temperature grades.

Key Features		Applications/Uses
15-bit, Multi-slope Integration ADC 15µV Resolution at 16 Conv/Sec Low Supply Current 125µA Max (Normal Operation) 10µA Max (Sleep-Mode Operation) ±0.005% Accuracy at 16 Conv/Sec 3 Super Bits for 18-Bit Resolution Low Noise—Operates at 300mV Full Scale Easy µP Interface—8-Bit Parallel Data Bus ±10pA Input Leakage Current Small 28 pin DIP and SO packages		Analog-Signal Measurement: Pressure, Flow, Temperature, Voltage, Current, Resistance, Weight Battery-Powered Instruments Control Applications Data Acquisition

Diagram

Typical Operating Circuit

Design Guides

Thermal Management (PDF)

Reliability Reports

Reliability Report: MAX135.pdf Show FIT data for: MAX135

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: 1-13 of 13

MAX135	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX135C/D			Active	Land Pattern: Not Available		See data sheet
MAX135CPI			Active	PDIP(W);28 pin;592.6 mm² Outline Drawing: 21-0044 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P28-3*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX135CPI+			Active	PDIP(W);28 pin;592.6 mm² Outline Drawing: 21-0044 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P28+3*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX135EPI			Active	PDIP(W);28 pin;592.6 mm² Outline Drawing: 21-0044 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P28-3*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX135EPI+			Active	PDIP(W);28 pin;592.6 mm² Outline Drawing: 21-0044 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P28+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX135CWI			Active	SOIC(W);28 pin;192.8 mm² Outline Drawing: 21-0042 (PDF) Land Pattern: 90-0109 (PDF) Use pkgcode/variation: W28-2*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX135CWI-T			Active	Land Pattern: Not Available	0°C to +70°C	See data sheet
MAX135CWI+			Active	SOIC(W);28 pin;192.8 mm² Outline Drawing: 21-0042 (PDF) Land Pattern: 90-0109 (PDF) Use pkgcode/variation: W28+2*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX135CWI+T			Active	Land Pattern: Not Available	0°C to +70°C	See data sheet
MAX135EWI			Active	SOIC(W);28 pin;192.8 mm² Outline Drawing: 21-0042 (PDF) Land Pattern: 90-0109 (PDF) Use pkgcode/variation: W28-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX135EWI-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX135EWI+			Active	SOIC(W);28 pin;192.8 mm² Outline Drawing: 21-0042 (PDF) Land Pattern: 90-0109 (PDF) Use pkgcode/variation: W28+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX135EWI+T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet

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