MAX140CPL+

ADCs/DACs - Special Purpose Overview

The MAX140CPL+ is a monolithic LED display driver and 3½-digit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. under the Maxim Integrated brand. It integrates a high-performance dual-slope ADC, a reference voltage source, and a charge pump into a single package. The device operates on a single low-voltage supply ranging from 2.5 V to 7 V. It features an internal clock oscillator and provides direct drive capabilities for common-cathode LED displays. The component is housed in a 40-pin Plastic Dual In-Line Package (PDIP-40) and supports through-hole mounting with an operating temperature range of -40°C to +85°C.

ADCs/DACs - Special Purpose Feature Summary

• Integrated 3½-digit dual-slope ADC with built-in reference and charge pump
• Direct drive capability for 7-segment common-cathode LED displays
• Single-supply operation from 2.5 V to 7 V
• Internal oscillator eliminates need for external clock components

ADCs/DACs - Special Purpose Applications

• Digital panel meters
• Portable instrumentation
• Industrial process control displays
• Battery-powered measurement devices

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix 'CPL+' against the manufacturer's current datasheet to confirm lead-free status and RoHS compliance. Confirm availability as distribution channels may list this part as discontinued or limited stock. Ensure the PDIP-40 package matches the target PCB footprint requirements before ordering.

ADCs/DACs - Special Purpose Selection Notes

Select the MAX140CPL+ when a complete 3½-digit digitizing solution is required without external ADCs or multiplexers. The PDIP-40 package is suitable for prototyping and through-hole designs. Verify that the input signal range fits within the ±200 mV full-scale options supported by the internal reference. Consider thermal dissipation if operating near the upper limit of the 7 V supply voltage.

ADCs/DACs - Special Purpose Part Context

This component belongs to the MAX140 family of LED display drivers. It serves as a cost-effective alternative to discrete ADC and decoder combinations. The 'C' designation typically indicates commercial temperature grading, while 'PL' denotes the PDIP-40 package style. The '+' suffix generally signifies lead-free manufacturing compliant with EU directives.

ADCs/DACs - Special Purpose Replacement Considerations

The MAX140EPL+ is a pin-compatible variant within the same series. Verify electrical specifications and temperature ranges before substitution. No other direct cross-model replacements are documented in the provided data.