LTC1420CGN#TRPBF

Analog To Digital Converters (ADC) Overview

The LTC1420CGN#TRPBF is a 12-bit, 10Msps sampling analog-to-digital converter (ADC) housed in a 28-lead narrow SSOP package. It operates from a single 5V or dual ±5V supply with a typical power dissipation of 250mW. The device integrates a high dynamic range sample-and-hold, a precision reference, and a programmable gain amplifier (PGA). Key electrical specifications include an integral nonlinearity (INL) error of less than 0.35 LSB and differential nonlinearity (DNL) of less than 0.25 LSB. At the Nyquist frequency of 5MHz, it achieves a signal-to-noise plus distortion ratio (S/(N+D)) of 71dB and a spurious-free dynamic range (SFDR) of 83dB.

Analog To Digital Converters (ADC) Feature Summary

• 10Msps sampling rate with 12-bit resolution and parallel digital output
• Integrated input PGA with digitally selectable 1x or 2x gain
• Flexible bipolar input ranges: –2.048V, –1.024V, and –0.512V
• True differential inputs with 75dB common mode rejection ratio (CMRR)
• Separate output logic supply (OVDD) for direct interface to 3V components

Analog To Digital Converters (ADC) Applications

• Telecommunications systems
• Digital signal processing
• Multiplexed data acquisition systems
• High-speed data acquisition
• Spectral analysis and imaging systems

Analog To Digital Converters (ADC) Procurement Notes

Verify that the component matches the Analog Devices Inc. manufacturer designation and the specific 28-lead narrow SSOP package configuration. Confirm the operating temperature range corresponds to the 'C' suffix (0°C to 70°C). Ensure the internal reference voltage settings align with the required application input ranges before integration.

Analog To Digital Converters (ADC) Selection Notes

Select this model when a 12-bit resolution at 10Msps is required with low power consumption under 250mW. It is suitable for applications needing flexible input ranges via the internal PGA. Consider the separate OVDD pin if interfacing with 3V logic is necessary. Verify that the clock jitter requirements are met to maintain the specified 71dB S/(N+D) performance.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC1420 family of high-performance sampling ADCs. The 'CGN' suffix indicates the commercial temperature grade and the 28-lead SSOP package. The '#TRPBF' suffix denotes tape and reel packaging with lead-free finish. It serves as a complete solution by integrating the sample-and-hold, ADC core, and reference on a single chip.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.