MAX192BEPP+

ADCs/DACs - Special Purpose Overview

The MAX192BEPP+ is a low-power, 8-channel, serial 10-bit analog-to-digital converter (ADC) from Analog Devices/Maxim Integrated. It integrates an 8-channel multiplexer, high-bandwidth track/hold, and a serial interface compatible with SPI, QSPI, and Microwire protocols. Operating on a single +5V supply, it supports both single-ended and differential input configurations. The device features an internal 4.096V reference and offers sampling rates up to 133 kS/s. It includes software-selectable power-down modes to minimize current consumption, making it suitable for battery-powered applications.

ADCs/DACs - Special Purpose Feature Summary

• 8-Channel Multiplexer: Supports single-ended or 4-channel differential inputs with pseudo-differential architecture.
• Low Power Consumption: Operates at 1.5mA in active mode and reduces to under 10µA in full power-down mode.
• Internal Reference: Includes an internal 4.096V voltage reference with ±30ppm/°C temperature coefficient.
• Serial Interface: 4-wire serial interface compatible with SPI, QSPI, Microwire, and TMS320 DSPs.

ADCs/DACs - Special Purpose Applications

• Automotive systems
• Pen-entry systems
• Portable data logging devices
• Battery-powered instruments and management systems
• Medical instruments

ADCs/DACs - Special Purpose Procurement Notes

Verify the component's authenticity through authorized distributors or manufacturer channels. Confirm the package type is 20-pin PDIP and the temperature range is -40°C to +85°C. Check for RoHS compliance status as indicated by the '+' suffix. Ensure the ordering information matches the specific grade (B) for linearity specifications before purchase.

ADCs/DACs - Special Purpose Selection Notes

Select the MAX192BEPP+ when 10-bit resolution and 133 kS/s sampling rate are required for multi-channel acquisition. Choose this part over the MAX192AEPP+ if tighter integral nonlinearity (INL) of ±1 LSB is needed across the industrial temperature range. Consider the MAX186/MAX188 if a pin-compatible 12-bit upgrade is necessary for higher precision applications.

ADCs/DACs - Special Purpose Part Context

The MAX192BEPP+ belongs to the MAX192 family of low-cost, 10-bit ADCs. It is designed for data-acquisition systems requiring multiple analog inputs. The 'E' suffix indicates an extended temperature range (-40°C to +85°C), while the 'P' denotes a plastic DIP package. The 'B' grade specifies performance characteristics such as ±1 LSB INL. It is often used in conjunction with anti-aliasing filters like the MAX291–MAX297 series.

ADCs/DACs - Special Purpose Replacement Considerations

For pin-compatible upgrades, consider the MAX186 or MAX188, which offer 12-bit resolution. For lower resolution needs, the MAX186/MAX188 can also serve as alternatives. Ensure that the replacement part supports the same serial interface protocol and voltage requirements. Verify that the temperature range and package dimensions match the existing design constraints.