LTC1420IGN#PBF

Analog To Digital Converters (ADC) Overview

The LTC1420IGN#PBF is a 12-bit, 10Msps sampling analog-to-digital converter (ADC) manufactured by Analog Devices Inc. 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 circuit, a precision reference, and a programmable gain amplifier (PGA). Key performance metrics include a signal-to-noise plus distortion ratio of 71dB and an spurious-free dynamic range of 83dB at the Nyquist frequency of 5MHz. It features true differential inputs with 75dB common mode rejection and supports input ranges of –2.048V, –1.024V, and –0.512V.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with 10Msps sampling rate
• Single 5V or dual ±5V supply operation
• Integrated PGA with selectable 1x or 2x gain
• True differential inputs with 75dB CMRR
• Flexible input ranges: –2.048V, –1.024V, –0.512V

Analog To Digital Converters (ADC) Applications

• Telecommunications
• Digital Signal Processing
• Multiplexed Data Acquisition Systems
• High Speed Data Acquisition
• Spectral Analysis
• Imaging Systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix #PBF indicates lead-free packaging compliant with RoHS standards. Confirm the IGN variant meets industrial temperature specifications ranging from –40°C to 85°C. Ensure the 28-lead narrow SSOP package footprint matches the target PCB design constraints before procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring low power consumption alongside high dynamic performance. The integrated PGA allows flexibility in handling varying input signal amplitudes without external amplification. Consider the 100MHz full-power bandwidth when designing input filtering stages to prevent aliasing and optimize noise performance.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC1420 family of 12-bit, 10Msps ADCs. The IGN suffix denotes the industrial temperature grade version, distinct from the commercial grade CGN variant. Both share identical electrical characteristics but differ in operating temperature ranges and qualification standards.

Analog To Digital Converters (ADC) Replacement Considerations

Direct pin-compatible replacements within the same family include the LTC1420CGN#PBF for commercial temperature applications. Verify that any substitute maintains the 28-lead SSOP package and compatible logic voltage levels on the OVDD pin.