MAX138C/D

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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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MAX138C/D

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

MAX138 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	MAX138C/D

Mounting Type	Surface Mount
Number of Channels	2
Operating Temperature (Max)	70 °C
Operating Temperature (Min)	0 °C
Package / Case	Die
Package Name	Die
Resolution	Digit
Resolution (Bits)	3.5 b
Type	ADC
Voltage - Supply (Maximum)	7 V
Voltage - Supply (Minimum)	2.5 V
Voltage Supply Source	Single Supply

MAX138 Series

Part	Voltage - Supply (Minimum)	Voltage - Supply (Maximum)	Operating Temperature (Max)	Operating Temperature (Min)	Voltage Supply Source	Package Length	Package Name	Package Width	Number of Channels	Package / Case	Mounting Type	Type	Resolution (Bits)	Resolution	Voltage - Supply (Range 1 Maximum)	Voltage - Supply (Range 2 Minimum)	Voltage - Supply (Range 1 Minimum)	Voltage - Supply (Range 2 Maximum)	Data Interface
Analog Devices Inc./Maxim Integrated MAX138CQH+D	2.5 V	7 V	70 °C	0 °C	Single Supply	16.59 mm	44-PLCC	16.59 mm	2	44-LCC (J-Lead)	Surface Mount	ADC	3.5 b	Digit
Analog Devices Inc./Maxim Integrated MAX138CPL+	2.5 V	7 V	70 °C	0 °C	Single Supply	0.6 in	40-DIP 40-PDIP	15.24 mm	2		Through Hole	ADC	3.5 b	Digit
Analog Devices Inc./Maxim Integrated MAX138EPL+			85 °C	-40 °C	Single Supply	0.6 in	40-DIP 40-PDIP	15.24 mm	2		Through Hole	Display Driver	3.5 b	Digit	7 V	2.5 V	2.5 V	7 V	Parallel
Analog Devices Inc./Maxim Integrated MAX138CMH+D	2.5 V	7 V	70 °C	0 °C	Single Supply	10 mm	44-MQFP	10 mm	2	44-QFP	Surface Mount	ADC	3.5 b	Digit
Analog Devices Inc./Maxim Integrated MAX138EQH+D	2.5 V	7 V	85 °C	-40 °C	Single Supply	16.59 mm	44-PLCC	16.59 mm	2	44-LCC (J-Lead)	Surface Mount	ADC	3.5 b	Digit
Analog Devices Inc./Maxim Integrated MAX138CMH+TD	2.5 V	7 V	70 °C	0 °C	Single Supply	10 mm	44-MQFP	10 mm	2	44-QFP	Surface Mount	ADC	3.5 b	Digit
Analog Devices Inc./Maxim Integrated MAX138CPL	2.5 V	7 V	70 °C	0 °C	Single Supply	0.6 in	40-DIP 40-PDIP	15.24 mm	2		Through Hole	ADC	3.5 b	Digit
Analog Devices Inc./Maxim Integrated MAX138C/D	2.5 V	7 V	70 °C	0 °C	Single Supply		Die		2	Die	Surface Mount	ADC	3.5 b	Digit
Analog Devices Inc./Maxim Integrated MAX138CQH+TD	2.5 V	7 V	70 °C	0 °C	Single Supply	16.59 mm	44-PLCC	16.59 mm	2	44-LCC (J-Lead)	Surface Mount	ADC	3.5 b	Digit
Analog Devices Inc./Maxim Integrated MAX138CMH+	2.5 V	7 V	70 °C	0 °C		10 mm	44-MQFP	10 mm		44-QFP	Surface Mount

Pricing

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CAD

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Documents

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