ADS8370IRHPR

Analog To Digital Converters (ADC) Overview

The ADS8370IRHPR is a 16-bit, 600-kHz sampling analog-to-digital converter (ADC) featuring a pseudo-differential input architecture. It integrates a capacitor-based Successive Approximation Register (SAR) core with an inherent sample-and-hold circuit. The device includes an onboard 4.096-V reference and conversion clock. It supports high-speed serial communication via an SPI-compatible interface with clock speeds up to 40 MHz. Power consumption is rated at 110 mW during normal operation, with reduced power modes available. The component is housed in a 28-lead 6x6 mm QFN package and operates within a temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• 16-bit resolution with no missing codes and a throughput rate of 600 kHz
• Integrated 4.096-V internal voltage reference and onboard conversion clock
• High-speed serial interface supporting SCLK frequencies up to 40 MHz
• Selectable output data formats: 2's complement or straight binary

Analog To Digital Converters (ADC) Applications

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

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific linearity grade required for the application. The IRHPR suffix designates the Industrial temperature range (-40°C to +85°C) and the IB sub-grade, which specifies tighter Integral Nonlinearity (±1.25 LSB max) and Differential Nonlinearity (±0.75 LSB max) compared to the standard I-grade variant. Confirm that the 2500-unit tape and reel packaging aligns with production volume requirements.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a pseudo-differential input is preferred over fully differential architectures. Ensure the system can accommodate the 0 V to 4.2 V input voltage span relative to the reference voltage. Designers must observe specified quiet zones around the CONVST_QUAL and BUSY signal transitions to maintain guaranteed dynamic performance specifications such as SINAD and SFDR.

Analog To Digital Converters (ADC) Part Context

The ADS8370 belongs to Texas Instruments' High Speed SAR Converter Family. It offers pin compatibility with the 18-bit ADS8380, facilitating potential upgrades in existing designs. Other family members include the ADS8371, ADS8372, and ADS8381/8382/8383, covering resolutions from 12-bit to 18-bit with varying input types and speeds.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS8370IBRHPT serves as the leaded/reel alternative with identical electrical characteristics but in a smaller 250-unit quantity. For higher resolution needs, the ADS8380 provides pin-compatible 18-bit performance.