MAX199BCNI

ADCs/DACs - Special Purpose Overview

The MAX199BCNI is a multi-range, 12-bit data-acquisition system (DAS) housed in a 28-pin narrow plastic DIP package. It operates on a single +5V supply and converts analog signals up to ±4V. 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 extends the effective dynamic range to 14 bits. Key electrical specifications include a 100ksps throughput rate, 6µs conversion time, and a 5MHz track/hold bandwidth. The unit includes an internal 4.096V reference or supports external references, with fault protection for inputs up to ±16.5V.

ADCs/DACs - Special Purpose Feature Summary

• 12-Bit Resolution with 1/2 LSB Linearity
• Single +5V Supply Operation
• Software-Selectable Input Ranges: ±VREF, ±VREF/2, 0V to VREF, 0V to VREF/2
• Internal 4.096V Reference or External Reference Support
• Fault-Protected Input Multiplexer (±16.5V)
• 8 Analog Input Channels with 100ksps Sampling Rate

ADCs/DACs - Special Purpose Applications

• Industrial-Control Systems
• Robotics
• Data-Acquisition Systems
• Automatic Testing Systems
• Medical Instruments

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix 'C' indicates the commercial temperature range of 0°C to +70°C. Confirm the package type is the 28-pin Narrow Plastic DIP. Check current availability status as older Maxim Integrated components may have limited stock or obsolescence notices. Ensure the application voltage matches the single +5V requirement.

ADCs/DACs - Special Purpose Selection Notes

Select this component when a 12-bit resolution with high channel count is required for single-supply systems. The software-selectable input ranges allow interfacing with various sensors without external scaling circuitry. Consider the 100ksps throughput limit and ensure the microprocessor interface timing aligns with the parallel bus requirements. Verify thermal dissipation capabilities within the specified operating temperature range.

ADCs/DACs - Special Purpose Part Context

The MAX199BCNI belongs to the MAX199 family of multi-range data acquisition systems. The 'B' suffix typically denotes specific linearity and accuracy grades compared to the 'A' variant. The 'C' suffix specifies the commercial temperature range. This part integrates the ADC, multiplexer, and reference buffer into a single chip, simplifying board design for industrial applications.

ADCs/DACs - Special Purpose Replacement Considerations

For different input ranges such as ±10V or ±5V, consult the MAX197 datasheet. For 12-bit bus interfaces with different pinouts, review the MAX196 or MAX198 specifications. Ensure any replacement maintains the 28-pin DIP footprint and compatible logic levels.