ADS8370IBRHPRG4

Analog To Digital Converters (ADC) Overview

The ADS8370IBRHPRG4 is a 16-bit, 600-kHz sampling analog-to-digital converter (ADC) with a pseudo-differential input and an integrated serial interface. It features a capacitor-based successive approximation register (SAR) architecture with inherent sample-and-hold functionality. The device includes an onboard 4.096-V reference buffer and conversion clock. Key performance metrics include ±0.5 LSB typical integral nonlinearity (INL), 89.5 dB signal-to-noise ratio (SNR), and 119 dB spurious-free dynamic range (SFDR) at a 1 kHz input frequency. It operates on a single +5 V analog supply and supports digital supplies from 2.7 V to 5.25 V, consuming 110 mW at full throughput.

Analog To Digital Converters (ADC) Feature Summary

• 16-bit resolution with 600-kHz throughput rate
• Integrated 4.096-V reference and onboard reference buffer
• High-speed CMOS serial interface supporting up to 40 MHz SCLK
• Selectable output data formats: 2's complement or straight binary

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 'RHPR' suffix indicates a 2500-unit tape and reel packaging configuration. Confirm the 'G4' suffix denotes lead-free status and RoHS compliance as per Texas Instruments standard product definitions. Ensure the 'I' designation matches the required -40°C to +85°C industrial temperature range for the specific application environment.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 16-bit resolution and 600-kHz sampling speed are required in a compact form factor. The internal reference simplifies design by reducing external component count. Consider the pseudo-differential input topology for noise rejection. Verify that the 2.7 V to 5.25 V digital supply range aligns with the host microcontroller logic levels.

Analog To Digital Converters (ADC) Part Context

This part belongs to the High Speed SAR Converter Family, specifically the ADS837x series. It is pin-compatible with the 18-bit ADS8380, allowing for potential upgrade paths within the same package footprint. The device utilizes a 28-lead 6 mm x 6 mm QFN package designed for efficient thermal dissipation and space-constrained PCB layouts.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS8370IB is a direct functional equivalent with tube packaging instead of tape and reel. For higher resolution requirements, the ADS8380 offers 18-bit performance with pin compatibility. Lower bit-count alternatives in the family include the ADS8371 (16-bit bipolar) and ADS8372 (14-bit).

Analog To Digital Converters (ADC) FAQ

How is the output data format selected?

The SB/2C pin determines the format. A low logic level selects straight binary, while a high logic level selects 2's complement.

What is the power consumption during nap mode?

In nap mode, the device consumes approximately 3 mA, reducing power dissipation significantly compared to the 110 mW consumed at 600 kHz full throughput.

Can the internal reference be disabled?

Yes, the internal reference can be bypassed by connecting an external reference voltage to the REFIN pin, though the REFOUT pin must remain unconnected or handled according to datasheet guidelines.