LTC2324IUKG-12#PBF

Analog To Digital Converters (ADC) Overview

The LTC2324IUKG-12#PBF is a quad, 12-bit + sign successive approximation register (SAR) analog-to-digital converter. It supports simultaneous sampling at 2Msps per channel with no latency. The device operates from a single 3.3V or 5V supply and features an 8Vp-p differential input range. Key electrical specifications include a typical Signal-to-Noise Ratio (SNR) of 78dB, ±0.5LSB Integral Nonlinearity (INL), and guaranteed 12-bit resolution without missing codes. It integrates a low-drift internal reference and offers CMOS or LVDS serial interface options.

Analog To Digital Converters (ADC) Feature Summary

• Quad 12-Bit SAR ADC with 2Msps/Ch simultaneous sampling throughput
• Guaranteed 12-bit resolution with no missing codes and ±0.5LSB INL
• Integrated low drift (20ppm/°C max) temperature-compensated reference
• High-speed SPI-compatible serial interface supporting CMOS or LVDS modes

Analog To Digital Converters (ADC) Applications

• High speed data acquisition systems
• Communications equipment
• Optical networking
• Multiphase motor control

Analog To Digital Converters (ADC) Procurement Notes

Verify the ordering suffix #PBF indicates lead-free finish and tube packaging. Confirm the 'I' grade designation matches the required operating temperature range of –40°C to 85°C for the specific application environment. Ensure compatibility with the 52-lead QFN package dimensions during PCB layout.

Analog To Digital Converters (ADC) Selection Notes

Select this component when four channels of synchronized high-speed conversion are required. The I-grade variant is suitable for industrial environments requiring operation down to –40°C. Consider the power dissipation of approximately 40mW per channel at full sample rate and utilize nap or sleep modes if lower power consumption is necessary during inactive periods.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC2324 family of quad SAR ADCs. The 'I' suffix denotes the industrial temperature range (-40°C to 85°C). The 'UKG' indicates the 52-lead 7mm x 8mm plastic QFN package. The '-12' specifies the 12-bit resolution variant within the series.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitute part numbers: LTC2324CUKG-12#PBF (Commercial temp range), LTC2324HUKG-12#PBF (Extended temp range).

Analog To Digital Converters (ADC) FAQ

What is the maximum sampling frequency per channel?

The maximum sampling frequency is 2 Msps per channel.

Does the device support external voltage references?

Yes, the internal reference buffers can be disabled by grounding the REFBUFEN pin, allowing external references in the range of 1.25V to 5V to drive the REFOUT pins.

How is the serial data output configured for LVDS mode?

In LVDS mode, the CMOS/LVDS pin is tied to OVDD. Data is output differentially on SDOA+/SDOA–, SDOB+/SDOB–, etc., and must be terminated with a 100Ω resistor at the receiver.