MAX192BCAP+T

ADCs/DACs - Special Purpose Overview

The MAX192BCAP+T 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. The device operates on a single +5V supply with a sampling rate of 133ksps. It features a 4-wire serial interface compatible with SPI, QSPI, and Microwire protocols. The BC suffix indicates a ±1 LSB relative accuracy rating. This specific variant is housed in a 20-pin SSOP package and supports an operating temperature range of 0°C to +70°C.

ADCs/DACs - Special Purpose Feature Summary

• 8-Channel Input: Supports 8 single-ended or 4 differential inputs with software-configurable unipolar/bipolar modes.
• High-Speed Conversion: Internal track/hold provides a 133ksps sampling rate with a 4.5MHz small-signal bandwidth.
• Low Power Consumption: Operates at 1.5mA during conversion and drops to under 10µA in full power-down mode.
• Integrated Reference: Includes an internal 4.096V reference with ±30ppm/°C typical drift and a reference-buffer amplifier.

ADCs/DACs - Special Purpose Applications

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

ADCs/DACs - Special Purpose Procurement Notes

Verify the ordering suffix 'CAP' confirms the 20-pin SSOP package and 'B' denotes the ±1 LSB accuracy grade. Confirm the '+T' suffix matches the required tape-and-reel packaging format for automated assembly. Ensure the component meets the 0°C to +70°C commercial temperature specification required by the design.

ADCs/DACs - Special Purpose Selection Notes

Select this part when a cost-effective, low-power solution is needed for multi-channel signal acquisition. The 10-bit resolution and 133ksps speed suit applications where extreme precision is not critical. Choose the SSOP package for space-constrained PCB layouts. Verify that the input signal source impedance is low enough to meet the 1.5µs acquisition time requirement without external buffering.

ADCs/DACs - Special Purpose Part Context

The MAX192 belongs to a family of low-power serial ADCs. The 'A' and 'B' grades differ in linearity accuracy, with 'B' offering ±1 LSB relative accuracy compared to ±0.5 LSB for 'A'. The 'CAP' designation specifies the shrink-small-outline package. This component serves as a pin-compatible upgrade path from older 8-bit devices while offering higher resolution and lower power consumption.

ADCs/DACs - Special Purpose Replacement Considerations

The MAX192ACAP+T is a direct replacement with tighter linearity specifications (±0.5 LSB INL/DNL). For through-hole designs, the MAX192BCPP+T offers identical electrical performance in a 20-pin DIP package. Both alternatives maintain the same pinout and functionality.