ADS8327IRSAT

Analog To Digital Converters (ADC) Overview

The ADS8327IRSAT is a low-power, 16-bit analog-to-digital converter featuring a single-ended unipolar input and a serial interface. It operates with an analog supply voltage range of 2.7 V to 5.5 V and supports a throughput rate of 500 kSPS. The device utilizes a capacitor-based successive approximation register (SAR) architecture with an inherent sample-and-hold function. Key electrical specifications include a maximum integral nonlinearity (INL) of ±3 LSB and a differential nonlinearity (DNL) of ±2 LSB for the 'I' grade. At a 500-kHz sampling rate with a 2.7 V analog supply, power consumption is typically 10.6 mW. The component is housed in a 4x4 mm QFN-16 package.

Analog To Digital Converters (ADC) Feature Summary

• 16-bit resolution with 500-kSPS throughput rate
• Unipolar input range from 0 V to VREF
• SPI/DSP compatible serial interface with SCLK up to 50 MHz
• Comprehensive power-down modes including deep power-down

Analog To Digital Converters (ADC) Applications

• Communications systems
• Medical instruments
• Industrial process control
• Data acquisition systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the ordering suffix IRSAT corresponds to the 4x4 QFN-16 package and small tape and reel quantity of 250 units. Confirm the 'I' designation indicates the industrial temperature range of –40°C to +85°C. Ensure the specific linearity grade matches system requirements, as the 'I' grade has different INL/DNL limits compared to the 'IB' grade. Cross-reference the datasheet revision SLAS415E for accurate parameter validation.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring a single-ended unipolar input signal. The ADS8327 differs from the ADS8328 by lacking the internal 2-to-1 multiplexer; use the ADS8328 if dual-channel input switching is needed. Ensure the reference voltage does not exceed the analog supply voltage plus 0.3 V. Verify that the I/O supply voltage (+VBD) is within the 1.65 V to 1.5×(+VA) range for proper logic level compatibility.

Analog To Digital Converters (ADC) Part Context

The ADS8327 belongs to a family of low-power SAR converters that includes the ADS8328 (dual input), ADS8329 (1 MSPS single), and ADS8330 (1 MSPS dual). All variants share similar architectural features but differ in speed and input configuration. The ADS8327IRSAT specifically denotes the industrial grade version packaged in a compact QFN format suitable for space-constrained designs.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS8328IRSAT is a functional substitute if the application can utilize only one of its two inputs or requires the MUX feature. For higher speed requirements, the ADS8329IRSAT offers 1-MSPS performance with a single input. Direct pin-compatible replacements within the same package are limited to these family members.