LTC1594LIS#PBF

Analog To Digital Converters (ADC) Overview

The LTC1594LIS#PBF is a 3V micropower, 12-bit sampling analog-to-digital converter (ADC) featuring a 4-channel multiplexer. It operates on a single supply voltage ranging from 2.7V to 3.6V and utilizes a successive approximation register (SAR) architecture with an integrated sample-and-hold circuit. The device achieves a maximum sampling rate of 10.5ksps at a clock frequency of 200kHz. Key electrical specifications include a typical supply current of 160μA during conversion and an automatic shutdown current of 1nA between conversions. It offers guaranteed ±3/4LSB maximum differential nonlinearity (DNL), ±3LSB integral linearity error, and no missing codes over the operating temperature range.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with 4-channel multiplexer and SAR architecture
• Low power consumption: 160μA typical during conversion, 1nA in shutdown mode
• Guaranteed ±3/4LSB max DNL and no missing codes across full temperature range
• Serial I/O compatible with QSPI, SPI, and MICROWIRE protocols

Analog To Digital Converters (ADC) Applications

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

Analog To Digital Converters (ADC) Procurement Notes

Verify that the component corresponds to the industrial temperature grade (-40°C to +85°C) indicated by the 'I' suffix in the part number. Confirm the package type is the 16-lead plastic SOIC. Ensure the application design supports the 3V supply voltage requirements specified for the L-series devices.

Analog To Digital Converters (ADC) Selection Notes

Select this model when a 3V supply is required rather than the 5V LTC1594/LTC1598 variants. The 'I' designation indicates the industrial temperature range; use the 'C' variant for commercial temperatures (0°C to 70°C). This part is suitable for applications requiring low power at moderate sampling rates up to 10.5ksps.

Analog To Digital Converters (ADC) Part Context

This component belongs to the LTC1594L/LTC1598L family of micropower ADCs. The LTC1594L variant provides 4 channels, while the LTC1598L provides 8 channels. Both are designed for 3V operation, distinguishing them from the standard 5V versions. The IS suffix specifically denotes the industrial temperature rating and SOIC packaging.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitute part numbers: LTC1594LCG#PBF, LTC1594LCS#PBF.