ADS8372IRHPT

Analog To Digital Converters (ADC) Overview

The ADS8372IRHPT is a 16-bit, 600-kHz fully differential pseudo-bipolar analog-to-digital converter (ADC) with a high-speed serial interface and an onboard reference. It features a capacitor-based SAR architecture with inherent sample-and-hold capabilities. The device operates with a digital supply voltage (+VBD) ranging from 2.7 V to 5.25 V and an analog supply (+VA) of 4.75 V to 5.25 V. Key performance metrics include ±0.75 LSB maximum integral nonlinearity (INL), ±0.5 LSB maximum differential nonlinearity (DNL), and a signal-to-noise and distortion ratio (SINAD) of 93.5 dB at a 1 kHz input frequency. Power consumption is 110 mW at full throughput, dropping to 15 mW in nap mode and 10 μW in power-down mode.

Analog To Digital Converters (ADC) Feature Summary

• 16-bit resolution with 600-kHz throughput rate and zero latency
• Fully differential pseudo-bipolar input supporting up to ±4.2 V
• Onboard 4.096-V reference buffer and conversion clock
• High-speed CMOS serial interface with clock speeds up to 40 MHz
• Pin-compatible with the 18-bit ADS8382

Analog To Digital Converters (ADC) Applications

• Medical instruments
• Optical networking systems
• Transducer interfaces
• Magnetometers
• High-accuracy data acquisition systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific linearity grade required for the application. The 'I' suffix denotes the standard linear version with ±0.75 LSB max INL. If higher precision is needed, the 'IB' variant offers ±0.5 LSB max INL. Confirm that the 28-pin 6x6 QFN package with tape and reel packaging matches the target PCB assembly specifications.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a high-speed, low-power 16-bit ADC with differential inputs is required. Ensure the system can accommodate the 4.096-V internal reference or provide an external reference between 2.5 V and 4.2 V. Verify that the host microcontroller supports the required serial timing constraints, particularly the quiet zones around the CONVST_QUAL and BUSY signals to maintain specified dynamic performance.

Analog To Digital Converters (ADC) Part Context

The ADS8372 belongs to Texas Instruments' high-speed SAR converter family. It serves as the 16-bit pseudo-bipolar counterpart to the ADS8382 (18-bit). It shares pinouts and interface logic with other devices in the series, such as the ADS8370 and ADS8371, facilitating design upgrades or downgrades within the same product line without significant board redesign.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS8372IBRHPT is available for applications requiring tighter linearity specifications (±0.5 LSB max INL vs ±0.75 LSB). For 18-bit requirements, the ADS8382 is pin-compatible but has different electrical characteristics.