LTC1598IG#PBF

Analog To Digital Converters (ADC) Overview

The LTC1598IG#PBF is a micropower, 12-bit successive approximation analog-to-digital converter featuring an 8-channel multiplexer. It operates on a single 4.5V to 5.5V supply and samples at up to 16.8ksps with typical current consumption of 320μA during conversion. The device automatically powers down to 1nA between conversions. It utilizes a serial interface compatible with QSPI, SPI, and MICROWIRE protocols for data transfer. The component is housed in a 24-pin SSOP package and supports industrial temperature ranges from -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with guaranteed ±3/4LSB maximum differential nonlinearity
• 8-channel analog multiplexer with separate MUXOUT and ADCIN pins
• Automatic shutdown mode reducing supply current to 1nA
• Serial I/O interface compatible with standard microprocessor buses

Analog To Digital Converters (ADC) Applications

• Battery-operated systems
• Remote data acquisition
• Isolated data acquisition
• Temperature measurement
• Pen screen digitizing

Analog To Digital Converters (ADC) Procurement Notes

Verify the ordering suffix #PBF indicates lead-free status and RoHS compliance. Confirm the IG suffix corresponds to the industrial temperature range (-40°C to +85°C) rather than the commercial grade. Ensure the package type matches the 24-lead SSOP specification required for the target design.

Analog To Digital Converters (ADC) Selection Notes

Select this model when eight analog channels require multiplexing into a single 12-bit converter. The external reference input allows ratiometric applications or operation with independent voltage references. Consider the separate CSADC and CSMUX pins if independent control of the multiplexer and ADC conversion timing is necessary for system optimization.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC1594/LTC1598 family of micropower sampling ADCs. The LTC1598 variant specifically provides eight input channels, whereas the LTC1594 offers four. Both share identical core ADC architecture and power management features, differing primarily in multiplexer channel count and package pinout configuration.

Analog To Digital Converters (ADC) Replacement Considerations

The LTC1598CG#PBF serves as the commercial temperature version of this component. The LTC1598L series offers 3V operation variants. Direct functional substitutes within the same package and pinout are limited to these specific temperature and voltage variations of the LTC1598.