MAX140CMH+

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Analog Devices Inc./Maxim Integrated

3 1/2 DIGIT ADC WITH REFERENCE, CHARGE PUMP, AND DIRECT LED DRIVERS

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MAX140CMH+

Unknown

Analog Devices Inc./Maxim Integrated

3 1/2 DIGIT ADC WITH REFERENCE, CHARGE PUMP, AND DIRECT LED DRIVERS

Find alt

Alpha

Description Specifications Series Pricing CAD Documents

Description

General part information

MAX140 Series

The MAX138/MAX139 are 3 ½ digit A/D converters (ADCs) with on-board LCD (MAX138) and LED (MAX139) display drivers. The MAX138/MAX139 also contain a charge-pump voltage inverter. The charge-pump inverter allows the MAX138/MAX139 to measure both positive and negative input voltages while operating from a single power-supply voltage from +2.5V to +7V. The operating circuits of the MAX138/MAX139 are similar to those of the ICL7136 and ICL7137 respectively, except the MAX138/MAX139 have an internal oscillator and an external charge-pump capacitor connected to pins 38 and 40.MAX140 is a low segment-current version of the MAX139 intended for use with low-current LED displays.Applications+3V Powered DMMs+5V Powered Panel MetersDigital ThermometersInstrumentsPortable MonitorsWeigh Scales

Technical Specifications

Parameters and characteristics for this part

Specification	MAX140CMH+

Mounting Type	Surface Mount
Number of Channels	2
Operating Temperature (Max)	70 °C
Operating Temperature (Min)	0 °C
Package / Case	44-QFP
Package Length	10 mm
Package Name	44-MQFP
Package Width	10 mm
Resolution	Digit
Resolution (Bits)	3.5 b
Type	Display Driver
Voltage - Supply (Maximum)	7 V
Voltage - Supply (Minimum)	2.5 V
Voltage Supply Source	Single Supply

MAX140 Series

3 1/2 Digit ADC with Reference, Charge Pump, and Direct LED Drivers

Part	Package Name	Voltage Supply Source	Voltage - Supply (Minimum)	Voltage - Supply (Maximum)	Number of Channels	Mounting Type	Operating Temperature (Max)	Operating Temperature (Min)	Package / Case	Type	Resolution (Bits)	Resolution	Package Length	Package Width	Supplied Contents	Number of Bits	Power (Typ)	Number of A/D Converters	Contents	Input Range	Sampling Rate (Per Second)	Data Interface	Utilized IC / Part
Analog Devices Inc./Maxim Integrated MAX140C/D	Die	Single Supply	2.5 V	7 V	2	Surface Mount	70 °C	0 °C	Die	Display Driver	3.5 b	Digit
Analog Devices Inc./Maxim Integrated MAX140EPL+	40-DIP 40-PDIP	Single Supply	2.5 V	7 V	2	Through Hole	85 °C	-40 °C		ADC	3.5 b	Digit	0.6 in	15.24 mm
Analog Devices Inc./Maxim Integrated MAX140CMH+D	44-MQFP	Single Supply	2.5 V	7 V	2	Surface Mount	70 °C	0 °C	44-QFP	Display Driver	3.5 b	Digit	10 mm	10 mm
Analog Devices Inc./Maxim Integrated MAX140CPL+	40-DIP 40-PDIP	Single Supply	2.5 V	7 V	2	Through Hole	70 °C	0 °C		ADC	3.5 b	Digit	0.6 in	15.24 mm
Analog Devices Inc./Maxim Integrated MAX1403EVKIT															Board(s)	18 bits	16.9 mW	1 count	Board	±VREF/gain	480 Hz	Serial	MAX1403
Analog Devices Inc./Maxim Integrated MAX140EQH+D	44-PLCC	Single Supply	2.5 V	7 V	2	Surface Mount	85 °C	-40 °C	44-LCC (J-Lead)	ADC	3.5 b	Digit	16.59 mm	16.59 mm
Analog Devices Inc./Maxim Integrated MAX140CMH+TD	44-MQFP	Single Supply	2.5 V	7 V	2	Surface Mount	70 °C	0 °C	44-QFP	Display Driver	3.5 b	Digit	10 mm	10 mm
Analog Devices Inc./Maxim Integrated MAX140CMH+	44-MQFP	Single Supply	2.5 V	7 V	2	Surface Mount	70 °C	0 °C	44-QFP	Display Driver	3.5 b	Digit	10 mm	10 mm
Analog Devices Inc./Maxim Integrated MAX140CQH+D	44-PLCC	Single Supply	2.5 V	7 V	2	Surface Mount	70 °C	0 °C	44-LCC (J-Lead)	ADC	3.5 b	Digit	16.59 mm	16.59 mm

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

MAX140CMH+ | Datasheet

Package Drawing - Metric Quad Flatpack