MAX199ACAI+

ADCs/DACs - Special Purpose Overview

The MAX199ACAI+ is a multi-range, 12-bit data-acquisition system (DAS) from Analog Devices/Maxim Integrated. It operates on a single +5V supply and features eight independently software-programmable analog input channels with ranges of ±VREF, ±VREF/2, 0V to VREF, or 0V to VREF/2. The device provides a throughput rate of 100ksps with a 6µs conversion time and includes a fault-protected input multiplexer rated for ±16.5V. It utilizes an 8+4 parallel interface compatible with TTL/CMOS logic and offers internal or external clock options.

ADCs/DACs - Special Purpose Feature Summary

• 12-Bit Resolution with 1/2LSB Integral Nonlinearity
• Software-Selectable Input Ranges: ±VREF, ±VREF/2, 0V to VREF, 0V to VREF/2
• Fault-Protected Input Multiplexer (±16.5V)
• Single +5V Supply Operation

ADCs/DACs - Special Purpose Applications

• Industrial-Control Systems
• Data-Acquisition Systems
• Automatic Testing Systems

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix 'CAI+' corresponds to the SSOP-28 package and commercial temperature range (0°C to +70°C). Confirm RoHS compliance status as indicated in official documentation. Ensure the source document explicitly lists this part number variant to avoid substitution errors with other pin-compatible packages like DIP or SOIC.

ADCs/DACs - Special Purpose Selection Notes

Select the MAX199ACAI+ when an SSOP-28 surface-mount package is required for space-constrained designs. This variant supports the full multi-range functionality including ±4V, ±2V, +4V, and +2V inputs. Ensure the design accommodates the 100ksps throughput and 5MHz input bandwidth requirements for the target application signals.

ADCs/DACs - Special Purpose Part Context

The MAX199 series integrates an ADC, multiplexer, and track/hold circuit into a single DAS. The 'A' grade denotes specific linearity performance (1/2LSB INL). The 'C' indicates the commercial temperature range, while 'AI' specifies the SSOP package type. This component simplifies system architecture by eliminating external signal conditioning for standard sensor interfaces.

ADCs/DACs - Special Purpose Replacement Considerations

Direct replacements include MAX199BCAI+ (higher accuracy grade) or MAX199ACNI+ (DIP package). For different input ranges, consult the MAX197 datasheet. For 12-bit bus interfaces, consider the MAX196/MAX198 series.