MCP3562T-E/ST - 24-Bit Dual-Channel ADC | Microchip

Industrial Process Measurement

The MCP3562T-E/ST is suitable for acquiring slow or medium-speed process variables from pressure, temperature, and level sensors. Its 24-bit resolution supports fine measurement granularity, while four single-ended inputs can reduce the number of converters required for a multichannel panel. With two differential inputs, the device can also monitor balanced bridge outputs from strain or pressure elements. At the maximum 153.6 kSPS data rate, it supports faster control loops than a slow-resolution converter, although actual loop bandwidth must remain within the digital-filter latency of the selected conversion mode. Use an accurate external reference because the MCP3562 does not include the onboard reference offered by MCP3562R.

Load-Cell and Bridge Sensor Acquisition

The two differential inputs of the MCP3562T-E/ST suit load cells, strain gauges, and other bridge-based sensors whose output is small and centered around a common reference potential. Differential conversion helps reject common-mode noise when the analog front end, grounding, and shielding are designed consistently. The 24-bit converter resolution is valuable for resolving small full-scale bridge voltages, while the maximum 153.6 kSPS rate permits faster sampling than many low-rate instrumentation ADCs. Because MCP3562 requires an external reference, the reference voltage and amplifier gain determine absolute scale accuracy. A low-noise reference and carefully placed input filtering are therefore central to achieving repeatable force or weight measurements.

Environmental Monitoring

The MCP3562T-E/ST can digitize multiple environmental sensor outputs in a compact monitoring node. Four single-ended channels allow connection of temperature, humidity, light, and gas sensors when their signal levels are compatible with the converter's input range. A differential configuration can support two balanced sensor pairs or circuits with a centered common-mode output. The 24-bit resolution preserves small changes that may be important in climate-control or air-quality systems, while programmable data rates let the designer balance throughput, filtering, and energy use. In a field-deployed node, protect the analog inputs from transients, keep the external reference quiet, and use averaged conversions or digital filtering when the application requires stable readings rather than maximum speed.

Portable Instrumentation

The 20-pin TSSOP package and low-noise delta-sigma architecture make the MCP3562T-E/ST appropriate for compact handheld measurement equipment. It can acquire several sensor channels without requiring a large flash-based ADC footprint, and the 24-bit resolution supports laboratory-style readings from low-level analog signals. Programmable conversion rates allow firmware to use slower, filtered measurements when battery energy is the priority and faster rates for transient or sampling applications. The external reference is a meaningful consideration in portable systems because it influences both accuracy and power budget. MCP3562R may simplify the reference design, but the final choice depends on the required reference accuracy, noise, and available power rails.

Precision Data Acquisition

The MCP3562T-E/ST is appropriate for precision data-acquisition systems that need more resolution than conventional 12-bit or 16-bit SAR converters. Four single-ended inputs provide a practical way to collect several slowly varying channels, and two differential inputs support noise-sensitive measurements where common-mode rejection is important. The delta-sigma conversion path and programmable output rate provide flexibility between resolution, bandwidth, and conversion latency. For laboratory or service equipment, average multiple readings, implement digital filtering appropriate to the selected data rate, and maintain a stable reference. The MCP3562R is worth evaluating when the onboard reference reduces circuit complexity, but verify every electrical limit and configuration sequence for the exact device suffix.

Battery-Powered Sensor Nodes

The MCP3562T-E/ST can serve as the measurement converter in a battery-powered sensor node that gathers multiple analog channels at controlled intervals. Its programmable data rate allows the system firmware to select a faster conversion mode during calibration or event capture and a slower mode for routine monitoring. Four single-ended inputs can reduce the number of separate converter packages, while differential operation can improve immunity to noise in remote sensor wiring. Energy use must be evaluated using the device's documented operating currents and shutdown behavior. The external reference also affects system-level power and accuracy, so compare the complete reference solution with MCP3562R before freezing the board design. Use low-leakage input protection and avoid unnecessary analog circuitry in duty-cycled nodes.