LTC1411CG#TRPBF

Analog To Digital Converters (ADC) Overview

The LTC1411CG#TRPBF is a single-supply, 14-bit, 2.5Msps analog-to-digital converter housed in a 36-lead SSOP package. It operates from a single 5V supply with typical power dissipation of 195mW. The device integrates a high-bandwidth sample-and-hold circuit, a precision internal reference, and an internally trimmed clock. It supports differential or single-ended inputs and provides four programmable input ranges selected via digital pins. Key performance metrics include –2LSB integral nonlinearity, 80dB S/(N + D), and 90dB THD at a 100kHz input frequency.

Analog To Digital Converters (ADC) Feature Summary

• 14-bit resolution with no missing codes over temperature
• 2.5Msps sampling rate with 80dB S/(N + D) at 100kHz input
• Four programmable input ranges (–1.8V to –0.64V span)
• Integrated 2.5V reference and internal clock

Analog To Digital Converters (ADC) Applications

• Telecommunications systems
• High-speed data acquisition
• Digital signal processing
• Multiplexed data acquisition systems
• Spectrum analysis
• Imaging systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing components. Confirm that the CG variant meets the required commercial operating temperature range of 0°C to 70°C. Ensure compatibility with standard 36-lead SSOP footprints during procurement planning.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring high dynamic performance at moderate speeds. The 14-bit resolution and low distortion make it suitable for precision measurement tasks. Consider the available programmable input ranges to match signal amplitudes without external attenuation. Evaluate power constraints against the 195mW typical dissipation or utilize Nap/Sleep modes for lower standby current.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC1411 family of high-speed ADCs. The CG suffix denotes the commercial temperature grade (0°C to 70°C), while the IG suffix would indicate an industrial grade (-40°C to 85°C). The TRPBF suffix specifies the reel packaging format for automated assembly.

Analog To Digital Converters (ADC) Replacement Considerations

Direct replacements within the same family include the LTC1411IG#TRPBF for industrial temperature requirements. Other Analog Devices ADCs may require significant interface or performance adjustments due to differing architectures or pinouts.

Analog To Digital Converters (ADC) FAQ

How are the programmable input ranges configured?

The input ranges are selected using two digital logic inputs, PGA0 and PGA1. These pins control the internal reference voltage applied to the DAC, providing spans of –1.8V, –1.27V, –0.9V, and –0.64V relative to the AIN– pin.

What is the wake-up time from Sleep mode?

When exiting Sleep mode, the ADC requires approximately 210ms to wake up if a 10µF bypass capacitor is used on the REFCOM2 pin. This allows the internal reference and compensation circuits to stabilize.

How does the device handle out-of-range signals?

The LTC1411 features an Out-of-the-Range (OTR) digital output. Combined with the Most Significant Bit (D13), it indicates whether the analog input exceeds the maximum voltage (overrange) or falls below the minimum voltage (underrange) of the selected input range.