LTC1199IS8#PBF

Analog To Digital Converters (ADC) Overview

The LTC1199IS8#PBF is a 10-bit, 450ksps successive approximation register (SAR) analog-to-digital converter in an 8-lead SOIC package. It features a software-selectable 2-channel multiplexer and operates on a single 4V to 6V supply. Power dissipation is typically 25mW at full speed, with automatic shutdown reducing current linearly at lower sample rates. The device utilizes a 3-wire serial interface compatible with SPI and Microwire protocols. Key electrical parameters include a maximum sampling rate of 450ksps, 1 LSB DNL, 4 LSB gain error, and a signal-to-noise plus distortion ratio of 60 dB.

Analog To Digital Converters (ADC) Feature Summary

• 10-Bit Resolution at 450ksps Sampling Rate
• Software-Selectable 2-Channel Input Multiplexer
• Auto Shutdown Reduces Power Linearly at Lower Sample Rates
• SPI and Microwire Compatible Serial I/O

Analog To Digital Converters (ADC) Applications

• High Speed Data Acquisition Systems
• Portable or Compact Instrumentation
• Low Power or Battery-Operated Instrumentation

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix #PBF indicates lead-free and RoHS compliance status according to Analog Devices documentation. Confirm the IS8 designation corresponds to the industrial temperature range (-45°C to +85°C) and the SOIC-8 package type. Ensure the source document matches the official datasheet for the LTC1199 series to validate all electrical specifications.

Analog To Digital Converters (ADC) Selection Notes

Select the LTC1199 variant over the LTC1197 when a 2-channel multiplexer is required, as the LTC1197 offers only a differential input without internal muxing. Choose this part for applications requiring a single-supply operation between 4V and 6V. Consider the LTC1199L if the system requires operation down to a 2.7V supply voltage.

Analog To Digital Converters (ADC) Part Context

This component belongs to the LTC1197/LTC1199 family of 10-bit, 500ksps ADCs. The LTC1199 specifically distinguishes itself by integrating a 2-channel multiplexer and having its reference voltage internally tied to the VCC pin, unlike the LTC1197 which requires an external reference and supports differential inputs.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitute part numbers: None identified in verified sources.

Analog To Digital Converters (ADC) FAQ

How does the LTC1199 handle power consumption during low sample rates?

The device features an auto-shutdown function that reduces supply current linearly as the sample rate is reduced, achieving micropower performance.

What is the maximum clock frequency for the LTC1199 at 5V operation?

The maximum clock frequency is 7.2 MHz when operating with a 5V supply.

Can the DIN and DOUT pins be tied together?

Yes, due to half-duplex operation, the DIN and DOUT pins can be tied together to allow transmission over just three wires: CS, CLK, and DATA.