LTC1198-1ACS8#PBF

Analog To Digital Converters (ADC) Overview

The LTC1198-1ACS8#PBF is an 8-bit, switched-capacitor successive approximation analog-to-digital converter (ADC) housed in an 8-lead plastic SO package. It operates on a single supply voltage ranging from 2.7V to 6V, with power dissipation specified at 50mW for a 5V supply and 10mW for a 3V supply. The device features a maximum sampling frequency of 750kHz and includes a software-selectable 2-channel multiplexer. It utilizes a 3-wire serial interface for data transfer and incorporates an auto-shutdown mode that reduces typical supply current to 1nA when not performing conversions.

Analog To Digital Converters (ADC) Feature Summary

• Maximum sampling rate of 750kHz with 8-bit resolution
• Integrated 2-channel input multiplexer with software selection
• Auto-shutdown capability reducing standby current to 1nA typical
• Single 5V supply operation with 50mW power consumption

Analog To Digital Converters (ADC) Applications

• High speed data acquisition systems
• Disk drives
• Portable or compact instrumentation
• Low power or battery-operated systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the component against the official Analog Devices datasheet (119698fb) to confirm pinout compatibility and electrical specifications. Ensure the operating temperature range meets the design requirements for the 0°C to 70°C commercial grade. Cross-reference the part marking "11981A" to validate authenticity and lot traceability before integration into production.

Analog To Digital Converters (ADC) Selection Notes

Select this model over the LTC1196 variant if a 2-channel multiplexer and automatic power-down functionality are required. The A-grade specification ensures a total unadjusted error of ±1/2LSB maximum over the operating temperature range. Verify that the system clock can support the necessary frequencies for the desired sampling rate, as performance varies with supply voltage and clock speed.

Analog To Digital Converters (ADC) Part Context

This component belongs to the LTC1196/LTC1198 family of high-speed, low-power ADCs. The specific suffix "1AC" denotes the A-grade temperature range (0°C to 70°C) and the "1" indicates the single-channel differential configuration variant within the broader family structure, although the LTC1198 specifically provides a 2-channel MUX. The "S8" identifies the 8-lead SOIC package type.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitute part numbers include LTC1198-1BCS8#PBF for B-grade temperature range variants.