LTC1419ACSW#PBF

Analog To Digital Converters (ADC) Overview

The LTC1419ACSW#PBF is a 14-bit, 800ksps successive approximation register (SAR) analog-to-digital converter manufactured by Analog Devices Inc. It operates on ±5V supplies with a power dissipation of 150mW and features a true differential input range of ±2.5V. The device includes an internal 2.5V reference and offers 81.5dB S/(N+D) at 100kHz input and 93dB THD. It provides a µP-compatible 14-bit parallel output with no pipeline delay. Available in a 28-lead SOIC package, it supports nap and sleep shutdown modes for low-power applications.

Analog To Digital Converters (ADC) Feature Summary

• 14-bit resolution with 800ksps sampling rate and 150mW power consumption
• True differential inputs with ±2.5V range and 60dB common mode rejection
• Internal 2.5V precision reference with external reference capability
• Nap and Sleep shutdown modes for flexible power management

Analog To Digital Converters (ADC) Applications

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

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific AC suffix indicates the commercial temperature grade (0°C to +70°C). Confirm the #PBF designation ensures lead-free compliance and RoHS adherence. Check current distributor availability as supply status may vary. Ensure the 28-pin SOIC package matches the PCB footprint requirements for the target design.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a high dynamic range 14-bit ADC is required without pipeline latency. The SAR architecture ensures stable DC performance and no missing codes. Consider the 20MHz full-power bandwidth for undersampling applications. Verify that the parallel interface timing meets the system's microprocessor or DSP requirements.

Analog To Digital Converters (ADC) Part Context

The LTC1419 is part of the LTC1419 family, which includes variants like the LTC1419CG and LTC1419CSW. The 'A' suffix denotes the commercial temperature range, while 'I' denotes industrial range. The 'SW' indicates the 28-lead plastic SOIC package. This model serves as an upgrade path from 12-bit converters like the LTC1410, offering improved dynamic range.

Analog To Digital Converters (ADC) Replacement Considerations

Direct pin-compatible replacements within the same package include other LTC1419 variants such as LTC1419CSW#PBF (commercial) or LTC1419ISW#PBF (industrial). Ensure the replacement matches the required temperature grade and package type. Cross-model substitution with different architectures requires careful evaluation of timing and interface compatibility.

Analog To Digital Converters (ADC) FAQ

What is the maximum sampling frequency?

The maximum sampling frequency is 800ksps.

Does the LTC1419 have pipeline delay?

No, the LTC1419 has no pipeline delay in its conversion results.

What is the input voltage range?

The bipolar input range is ±2.5V.

How many shutdown modes are available?

There are two digitally selectable power shutdown modes: Nap mode and Sleep mode.