LTC2424CG#PBF

Analog To Digital Converters (ADC) Overview

The LTC2424CG#PBF is a 4-channel, 20-bit micropower delta-sigma analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates on a single supply voltage ranging from 2.7V to 5.5V and features an integrated oscillator with no external frequency-setting components required. The device provides 8ppm integral nonlinearity (INL), 1.2ppm RMS noise, and a minimum of 110dB rejection at 50Hz or 60Hz. It utilizes a flexible 4-wire digital interface compatible with SPI and MICROWIRE protocols. Key specifications include a total unadjusted error of 8ppm, extended input range accommodating ±12.5% overrange/underrange, and low supply current consumption of 200µA in conversion mode.

Analog To Digital Converters (ADC) Feature Summary

• 20-bit resolution with 8ppm INL and 1.2ppm RMS noise
• Integrated internal oscillator for 50Hz/60Hz notch filtering without external components
• Extended input range: -0.125•VREF to 1.125•VREF
• Single-cycle digital filter settling with no latency delay

Analog To Digital Converters (ADC) Applications

• Weight scales
• Direct temperature measurement
• Gas analyzers
• Strain-gage transducers
• Industrial process control

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific package type and operating temperature range associated with the CG suffix against the manufacturer's official documentation before procurement. Confirm that the component meets all necessary environmental compliance standards required for the intended application environment.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring high precision multiplexed inputs with minimal latency. Ensure the reference voltage is within the 0.1V to VCC range. Consider the 28-lead SSOP package constraints and verify that the system power supply remains stable between 2.7V and 5.5V for optimal performance.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC2424/LTC2428 family of 4-/8-channel 20-bit µPower No Latency ΔΣ ADCs. It is pin-compatible with the 24-bit LTC2404/LTC2408 series when the ZSSET pin is grounded, allowing for potential design upgrades or replacements within existing hardware architectures.

Analog To Digital Converters (ADC) Replacement Considerations

The LTC2424CG can be interchanged with the LTC2404CG if the ZSSET pin is grounded. Note that the LTC2404 outputs a 32-bit word while the LTC2424 outputs a 24-bit word; additional clock pulses may be required for compatibility.