MAX192BEAP+

ADCs/DACs - Special Purpose Overview

The MAX192BEAP+ 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 circuit, and successive approximation register (SAR) architecture. Operating on a single +5V supply, it supports both single-ended and differential input configurations with software-selectable unipolar or bipolar ranges. The device features a 4-wire serial interface compatible with SPI, QSPI, and Microwire protocols. Key electrical specifications include a sampling rate of 133 kS/s, an internal 4.096V reference, and a power consumption of 1.5mA in operating mode. It is housed in a 20-pin SSOP package and operates within a temperature range of -40°C to +85°C.

ADCs/DACs - Special Purpose Feature Summary

• 8-Channel Multiplexer: Supports single-ended or 4-channel differential inputs with software-configurable unipolar/bipolar modes.
• High-Speed Conversion: Internal track/hold provides a 133 kS/s sampling rate with 10-bit resolution using SAR architecture.
• Integrated Reference: Includes an internal 4.096V reference with ±30ppm/°C typical drift and a reference-buffer amplifier.
• Low Power Consumption: Operates at 1.5mA; reduces to under 10µA in full power-down mode via SHDN pin or software control.

ADCs/DACs - Special Purpose Applications

• Portable Data Logging
• Battery-Powered Instruments
• Medical Instruments
• Robotics

ADCs/DACs - Special Purpose Procurement Notes

Verify the ordering suffix 'E' indicates the extended temperature range (-40°C to +85°C) and 'AP' denotes the 20-pin shrink-small-outline package (SSOP). Confirm RoHS compliance status as indicated by the '+' suffix in the part number. Ensure the specific lot revision matches design requirements for long-term production stability.

ADCs/DACs - Special Purpose Selection Notes

Select the MAX192BEAP+ when an extended industrial temperature range (-40°C to +85°C) is required compared to the commercial grade (MAX192ACAP+). The 'B' suffix specifies a relative accuracy of ±1 LSB, whereas 'A' offers ±0.5 LSB. Choose this SSOP package for space-constrained PCB layouts where surface-mount technology is preferred over DIP packages.

ADCs/DACs - Special Purpose Part Context

The MAX192 belongs to the Maxim Integrated low-power ADC family. It is pin-compatible with the 12-bit MAX186/MAX188, allowing for potential upgrades without redesigning the PCB layout. The BEAP variant specifically targets applications requiring robust performance across wider environmental temperatures while maintaining a compact footprint.

ADCs/DACs - Special Purpose Replacement Considerations

The MAX192AEAP+ serves as a higher-accuracy alternative with ±0.5 LSB relative accuracy. For through-hole implementations, the MAX192BEPP+ is the equivalent DIP package version. Direct pin-for-pin replacements must maintain compatibility with the 5V supply and serial interface timing constraints.