LTC1198-2ACS8#PBF

Analog To Digital Converters (ADC) Overview

The LTC1198-2ACS8#PBF is an 8-bit successive approximation register (SAR) analog-to-digital converter in an 8-lead plastic SO package. It features a software-selectable 2-channel multiplexer and operates on a single 3V to 6V supply. The device supports sampling rates up to 750kHz with a typical power dissipation of 50mW at 5V. It includes an auto-shutdown mode that reduces supply current to 1nA when not converting. The part specifies ±1/2LSB total unadjusted error over the 0°C to 70°C temperature range and utilizes a 3-wire serial interface for data transfer.

Analog To Digital Converters (ADC) Feature Summary

• 8-Bit Resolution with 750kHz Maximum Sampling Rate
• Software-Selectable 2-Channel Input Multiplexer
• Auto-Shutdown Mode with 1nA Typical Supply Current
• ±1/2LSB Total Unadjusted Error Over Temperature

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 specific ordering suffix '#PBF' indicates lead-free finish and tube packaging as defined in the manufacturer's order information table. Confirm the 'AC' grade designation corresponds to the specified ±1/2LSB total unadjusted error performance over the commercial temperature range. Ensure compatibility with 3V to 6V single supply operation requirements.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring high speed-to-power ratio in compact systems. The 2-channel MUX capability distinguishes it from the differential-input LTC1196 variant. Verify that the 3-wire serial interface timing constraints, such as setup and hold times, align with the host microprocessor or DSP clock rates. Consider the 8-pin SO package dimensions for PCB layout constraints.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC1196/LTC1198 family of 8-bit ADCs. The LTC1198 variant specifically provides a 2-channel multiplexer, whereas the LTC1196 offers a differential input. Both share similar architecture, power characteristics, and serial interface protocols. The '2' in the model number denotes the dual-channel configuration.

Analog To Digital Converters (ADC) Replacement Considerations

LTC1198-1BCS8#PBF: Single-channel version with B-grade accuracy specifications.

Analog To Digital Converters (ADC) FAQ

What is the maximum sampling frequency for the LTC1198?

The maximum sampling frequency for the LTC1198 is 750kHz.

How does the auto-shutdown feature function?

The LTC1198 automatically powers down to a typical supply current of 1nA whenever it is not performing conversions.

What is the input configuration for the LTC1198-2 series?

The LTC1198-2 series features a software-selectable 2-channel multiplexer, allowing conversion of either channel individually or differentially.