ADS8345NB/1K

Analog To Digital Converters (ADC) Overview

The ADS8345NB/1K is a 16-bit, 8-channel analog-to-digital converter (ADC) manufactured by Texas Instruments. It features a successive approximation register (SAR) architecture with a maximum sampling rate of 100 kS/s. The device supports both single-ended and differential input configurations, offering eight single-ended or four differential channels. It operates on a single supply voltage ranging from 2.7 V to 5.25 V for both analog and digital domains. The component utilizes an SPI-compatible serial interface for data output. It is housed in a 20-lead SSOP package and is designed for operation within a temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Supports flexible input configurations including eight single-ended or four differential channels.
• Integrates a high-speed SAR ADC core capable of 100 kS/s conversion rates.
• Features low power consumption with a dedicated shutdown mode for battery-operated applications.
• Provides pin-compatible replacement options for legacy ADS7844 and ADS8344 devices.

Analog To Digital Converters (ADC) Applications

• Data acquisition systems requiring multi-channel signal processing.
• Industrial process control and monitoring equipment.
• Portable instrumentation and test measurement devices.
• Battery-powered systems requiring low-power analog front-end solutions.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'NB/1K' against the manufacturer's current datasheet to confirm package type and reel quantity specifications. Ensure compatibility with existing board layouts if replacing older variants like the standard NB version. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process before finalizing procurement orders.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 16-bit resolution and 100 kS/s throughput are required for multi-channel applications. Consider the external reference requirement and the specific SSOP-20 footprint constraints. Evaluate the trade-off between the 8-channel multiplexing capability and the system's total data rate needs compared to parallel-output alternatives.

Analog To Digital Converters (ADC) Part Context

The ADS8345 belongs to the ADS834x family of high-performance, low-power sampling ADCs. This series is designed to bridge the gap between high-speed converters and precision instrumentation amplifiers. The NB variant specifically denotes the SSOP-20 package option, distinguishing it from the QSOP-20 E variant while maintaining identical electrical performance characteristics across the family.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS8345 is pin-compatible with the ADS7844 and ADS8344. Verify that the substitute part matches the required channel count and input voltage ranges. Ensure the replacement component supports the same SPI communication protocol and power supply specifications as the original design.