ADS8321E/2K5

Analog To Digital Converters (ADC) Overview

The ADS8321E/2K5 is a 16-bit, high-speed, micro-power sampling analog-to-digital converter manufactured by Texas Instruments. It operates on a single power supply ranging from 2.7 V to 5.5 V and achieves a throughput rate of up to 200 kSPS. The device features a serial interface compatible with standard SPI and QSPI protocols, facilitating direct connection to digital signal processors. Key electrical specifications include a full-scale input range of 0 V to VREF and a typical conversion time of 4.5 µs. It is housed in an 8-lead MSOP package designed for space-constrained applications requiring low power consumption.

Analog To Digital Converters (ADC) Feature Summary

• Micro-power architecture optimized for battery-operated systems
• High-speed 16-bit resolution with 200 kSPS throughput
• Flexible serial interface compatible with DSPs and microcontrollers
• Single-supply operation with wide voltage range

Analog To Digital Converters (ADC) Applications

• Portable medical instrumentation
• Industrial process control systems
• Battery-powered data acquisition modules

Analog To Digital Converters (ADC) Procurement Notes

Verify the suffix '2K5' indicates tape-and-reel packaging containing 2000 units per reel. Confirm the 'E' designation meets environmental standards. Ensure the order matches the specific revision level required for your design. Check for lead-free compliance markers on the component marking. Validate that the distributor source provides original manufacturer documentation.

Analog To Digital Converters (ADC) Selection Notes

Select this component when 16-bit accuracy and moderate speed are required alongside strict power constraints. Compare against the ADS8320 if lower resolution suffices or the ADS8324 if higher speed is needed. Ensure the reference voltage matches the input signal range. Verify the serial clock frequency limits of the host processor match the ADC's timing requirements.

Analog To Digital Converters (ADC) Part Context

The ADS8321 belongs to Texas Instruments' family of 8- to 16-bit serial sampling ADCs. It shares architectural similarities with the ADS8320 and ADS8324 but offers distinct resolution and speed trade-offs. The E variant typically denotes enhanced environmental testing. This part bridges the gap between low-resolution, high-speed converters and high-resolution, slow-speed devices.

Analog To Digital Converters (ADC) Replacement Considerations

Direct pin-compatible substitutes include the ADS8320 (12-bit) and ADS8324 (16-bit, 500 kSPS). Verify interface compatibility and power supply requirements before substitution. The ADS8321E may replace the standard ADS8321 if environmental ratings differ.