MCP6S22-I/SN

Overview

The MCP6S22-I/SN is a two-channel analog Programmable Gain Amplifier (PGA) manufactured by Microchip Technology. It features an integrated input multiplexer selectable via a Serial Peripheral Interface (SPI). The device supports gains from +1 V/V to +32 V/V with rail-to-rail input and output capabilities. It operates on a single supply voltage ranging from 2.5V to 5.5V. Key electrical specifications include a maximum input offset voltage of ±275 µV, a typical quiescent current of 1.0 mA, and a bandwidth varying between 2 MHz and 12 MHz depending on the gain setting.

Feature Summary

• Integrates a dual-channel analog multiplexer for selecting between CH0 and CH1 inputs.
• Provides eight programmable gain settings ranging from +1 V/V to +32 V/V.
• Features rail-to-rail input and output stages for single-supply operation.
• Includes a shutdown mode accessible via SPI to minimize power consumption.

Applications

• A/D Converter Driver
• Multiplexed Analog Applications
• Data Acquisition Systems
• Industrial Instrumentation

Procurement Notes

Verify the specific suffix 'I/SN' corresponds to the industrial temperature range (-40°C to +85°C) and the 8-pin SOIC package. Confirm that the internal connection of VREF to VSS aligns with system reference requirements. Ensure SPI timing parameters meet the controller's clock speed limitations before finalizing procurement.

Selection Notes

Select this component when a dual-channel signal path requires programmable amplification within a single package. The internal VREF tie to VSS simplifies biasing compared to other family members. Consider the bandwidth reduction at higher gains and the specific pinout constraints of the 8-pin SOIC package during schematic design.

Part Context

This part belongs to the MCP6S21/2/6/8 family of single-ended, rail-to-rail PGAs. While sharing core architecture with the one-channel MCP6S21 and multi-channel variants, the MCP6S22 specifically provides two analog inputs. It utilizes the same SPI control logic and gain ladder structure as its siblings but is optimized for applications requiring exactly two selectable channels.

Replacement Considerations

Direct functional substitutes within the same package and specification profile are limited due to the unique channel count and internal VREF configuration. Verify compatibility with MCP6S21 or MCP6S26 only if channel count and VREF handling can be adapted in the circuit design.