LTC1854IG#PBF

Analog To Digital Converters (ADC) Overview

The LTC1854IG#PBF is an 8-channel, 12-bit analog-to-digital converter (ADC) featuring a 100ksps sampling rate and ±10V bipolar input range. It operates from a single 5V supply and includes an onboard precision reference. The device integrates an 8-channel multiplexer with ±30V fault protection for all channels. DC specifications include ±1LSB integral nonlinearity (INL). Power dissipation is 40mW at full speed, with Nap mode consuming 27.5mW and Sleep mode drawing only 40µW. The component utilizes SPI/MICROWIRE compatible serial I/O and is housed in a 28-lead SSOP package.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with 100ksps sampling rate
• 8-channel multiplexer with ±30V overvoltage protection
• ±10V bipolar input range with internal 2.5V reference
• Low power consumption: 40mW active, 40µW sleep mode

Analog To Digital Converters (ADC) Applications

• Industrial process control systems
• Multiplexed data acquisition systems
• High-speed PC data acquisition
• Digital signal processing interfaces

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance when sourcing. Confirm the 'I' grade designation matches the required -40°C to +85°C industrial temperature range. Ensure the SSOP-28 package footprint aligns with the PCB layout design before finalizing procurement orders.

Analog To Digital Converters (ADC) Selection Notes

Select this model for applications requiring 12-bit accuracy rather than the higher resolution options available in the same family. The LTC1855 offers 14-bit resolution, while the LTC1856 provides 16-bit resolution. Choose this part if the system budget requires lower cost or if 12-bit precision sufficiently meets the signal integrity requirements of the target application.

Analog To Digital Converters (ADC) Part Context

This component belongs to the LTC1854/LTC1855/LTC1856 family of low-power, multi-channel ADCs manufactured by Analog Devices. All variants share identical pinouts, power management features, and interface protocols, differing primarily in resolution and linearity specifications. The IG#PBF suffix denotes the industrial temperature grade and lead-free packaging within this series.

Analog To Digital Converters (ADC) Replacement Considerations

The LTC1855IG#PBF and LTC1856IG#PBF are direct pin-compatible replacements offering higher resolutions of 14-bit and 16-bit respectively. These upgrades maintain the same package and interface but provide improved linearity and dynamic performance.