ADS7959SRGER

Analog To Digital Converters (ADC) Overview

The ADS7959SRGER is an 8-bit, 1 MSPS, 8-channel single-ended successive approximation register (SAR) analog-to-digital converter (ADC) manufactured by Texas Instruments. It operates with an analog supply voltage range of 2.7 V to 5.25 V and a digital supply voltage range of 1.7 V to 5.25 V. The device features a serial peripheral interface (SPI) for data communication. Key performance metrics include a signal-to-noise ratio (SNR) of 49 dB and a signal-to-noise and distortion ratio (SINAD) of 49 dB. Integral nonlinearity (INL) is specified at 0.12% of full-scale range (FSR). Power consumption is rated at 11.5 mW. The component is housed in a VQFN-24 package and supports operation across a temperature range from -40°C to +125°C.

Analog To Digital Converters (ADC) Feature Summary

• Eight single-ended input channels enable multi-point sensing within a compact footprint.
• Low power consumption of 11.5 mW supports battery-operated applications.
• High-speed sampling capability of 1 MSPS facilitates real-time data acquisition.
• Robust operating temperature range ensures reliability in harsh environments.

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring multi-channel monitoring
• Portable instrumentation devices prioritizing low power usage
• Data acquisition modules for environmental sensing
• Automotive sensor interfaces operating under wide temperature conditions

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'GER' against the manufacturer's official datasheet to confirm the tape-and-reel packaging configuration and moisture sensitivity level. Ensure that the external reference voltage requirements align with the system design, as this device utilizes an external reference architecture rather than an internal one. Cross-check the VQFN-24 pinout compatibility with the target PCB layout to prevent assembly errors during procurement and integration.

Analog To Digital Converters (ADC) Selection Notes

Select the ADS7959SRGER when eight single-ended inputs are required alongside high sampling rates. Compare integral nonlinearity specifications against application accuracy needs, noting the 0.12% FSR rating. Evaluate power budget constraints given the 11.5 mW dissipation. Consider the VQFN-24 package size relative to available board space. Verify that the SPI interface speed matches the host microcontroller capabilities for seamless integration.

Analog To Digital Converters (ADC) Part Context

This component belongs to the ADS795x family of micro-power SAR ADCs from Texas Instruments. It shares core architectural similarities with models like the ADS7958 and ADS7953 but distinguishes itself through its specific eight-channel configuration. The SRGER variant denotes a specific packaging and reel format within the broader product line, designed for surface-mount assembly in high-volume manufacturing environments.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS7958SRGER serves as a direct substitute for designs requiring four channels instead of eight, maintaining identical electrical characteristics and pinouts where applicable. Other family members such as the ADS7953 offer higher resolution but differ in channel count and package options. Verify pin compatibility and software driver support before transitioning to alternative part numbers within the same series.