MAX199ACAI

Analog To Digital Converters (ADC) Overview

The MAX199ACAI is a multi-range, 12-bit data-acquisition system (DAS) from Analog Devices Inc./Maxim Integrated. It operates on a single +5V supply and converts analog signals up to ±4V at its inputs. The device features eight independently software-programmable analog input channels with selectable ranges: ±VREF, ±VREF/2, 0V to VREF, or 0V to VREF/2. This configuration increases the effective dynamic range to 14 bits. Key electrical parameters include a 100ksps throughput rate, 6µs conversion time, and a 5MHz bandwidth track/hold. It utilizes an internal or external reference voltage of 4.096V nominal. The component is housed in a 28-pin SSOP package and supports an operating temperature range of 0°C to +70°C.

Analog To Digital Converters (ADC) Feature Summary

• Software-selectable input ranges for flexible sensor interfacing
• Fault-protected input multiplexer tolerant to ±16.5V overvoltage
• Dual power-down modes including standby mode to eliminate start-up delays
• Three-state parallel interface compatible with standard microprocessors

Analog To Digital Converters (ADC) Applications

• Industrial-control systems
• Data-acquisition systems
• Automatic testing systems
• Medical instruments

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix 'ACAI' corresponds to the 28-pin SSOP package and commercial temperature range (0°C to +70°C). Confirm that the component meets current environmental compliance requirements, as older Maxim Integrated parts may not be RoHS compliant. Ensure the source document explicitly lists this part number to avoid substitution errors with similar variants like MAX199BCAI.

Analog To Digital Converters (ADC) Selection Notes

Select the MAX199ACAI when a single +5V supply is available and multi-range input capability is required. It is suitable for applications needing 12-bit resolution with 100ksps sampling speed. Consider the internal reference option if external components are to be minimized. Verify that the 8+4 bit parallel bus interface matches the host microprocessor's data bus width and timing constraints.

Analog To Digital Converters (ADC) Part Context

The MAX199ACAI belongs to the MAX199 series of multi-range data acquisition systems. It shares core functionality with other variants such as the MAX199BCAI, differing primarily in accuracy grades and packaging. The 'A' suffix typically denotes a specific performance grade within the family, while 'C' indicates the commercial temperature range. This series is designed for general-purpose analog signal digitization in embedded systems.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitute part numbers include MAX199BCAI for the same SSOP package and temperature range. Other pin-compatible options within the MAX199 family should be verified against specific accuracy and temperature specifications before replacement.