MAX197ACWI+T

ADCs/DACs - Special Purpose Overview

The MAX197ACWI+T is a multi-range, 12-bit data-acquisition system (DAS) featuring an analog-to-digital converter (ADC), input multiplexer, and track/hold circuit. It operates from a single +5V supply while accepting analog inputs spanning ±16.5V. The device provides eight independently programmable analog channels with selectable ranges of ±10V, ±5V, 0V to +10V, or 0V to +5V. Key electrical parameters include a 100ksps throughput rate, 12-bit resolution with ±1/2 LSB linearity, and a 5MHz bandwidth track/hold. It utilizes an 8+4 parallel bus interface compatible with standard microprocessors.

ADCs/DACs - Special Purpose Feature Summary

• Multi-range input capability: ±10V, ±5V, 0V to +10V, or 0V to +5V
• 12-bit resolution with ±1/2 LSB integral nonlinearity
• Single +5V power supply operation
• Overvoltage tolerant inputs up to ±16.5V
• Software-selectable internal or external clock and acquisition control

ADCs/DACs - Special Purpose Applications

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

ADCs/DACs - Special Purpose Procurement Notes

Verify the 'T' suffix indicates tape-and-reel packaging for this specific part number. Confirm the AC grade temperature range (0°C to +70°C). Check current availability status as older Maxim Integrated products may have limited stock or obsolescence notices.

ADCs/DACs - Special Purpose Selection Notes

Select the MAX197ACWI+T when a wide dynamic range is required without multiple gain stages. Ensure the design supports a single +5V supply. Verify that the 8+4 parallel interface timing matches the target microprocessor's bus specifications. Consider the 100ksps sampling rate against signal bandwidth requirements.

ADCs/DACs - Special Purpose Part Context

This component belongs to the MAX197 family of multi-range DAS devices. The AC grade specifies commercial temperature limits (0°C to +70°C). The WI suffix denotes the Wide SOIC-28 package. The T suffix typically indicates reel packaging, distinguishing it from tube-packaged variants like the MAX197ACWI+.

ADCs/DACs - Special Purpose Replacement Considerations

For different input ranges (±4V, ±2V, 0V to 4V, 0V to 2V), refer to the MAX199. For 12-bit bus interfaces with different pinouts, consider the MAX196 or MAX198. Verify pin compatibility before substitution.