Description

The LTC1297DCN8 is an ADC (Analog-to-Digital Converter) from the LTC®1292/LTC1297 series, primarily designed for Data Acquisition Systems & DSP applications. It has a 12-bit, differential input, successive approximation architecture, sample-and-hold on the (+) input, and serial I/O feature for easy interface to processors. This component is capable of digitizing signals at a maximum throughput rate of 60kHz. It utilizes the incredible AC characteristics of the device. When the LTC1297DCN8 is not in use, it automatically powers down, reducing supply current to a minimum of 5µA. This device, made possible by utilizing the LTCMOSTM switched-capacitor technology is available in an 8-pin DIP package. 

Specifications and Features

• 12-bit, differential input, successive approximation architecture
• Built-in sample-and-hold feature on (+) input for accurate analog-to-digital conversion
• Serial I/O for easy interface with processors
• Direct 3-wire interface to most MPU serial ports and all MPU parallel ports 
• All analog inputs common mode to supply rails
• Maximum throughput rate of 60kHz (LTC1292)
• Power Shutdown After Each Conversion (LTC1297)
• Availability in 8-pin DIP packaging

Application Scenarios

The LTC1297DCN8 ADC can be used in various applications, including but not limited to:

• Data acquisition systems & DSP applications
• Instruments like oscilloscopes, signal analyzers, etc., designed for accurate and high-speed signal processing
• Automotive - precision servo control and similar applications requiring fast and accurate measurements

Comparison

• Low power consumption with automatic power down feature between conversions.
• High-speed data acquisition of up to a maximum throughput rate of 60kHz.
• Built-in sample-and-hold feature for accurate A/D conversions.

• Limited resolution because of its 12-bit architecture.
• Limited input range as all analog inputs are common mode to supply rails.