AD977CRSZ

Analog To Digital Converters (ADC) Overview

The AD977CRSZ is a 16-bit, single-channel Analog-to-Digital Converter (ADC) manufactured by Analog Devices Inc. It utilizes Successive Approximation Register (SAR) architecture and operates with a sampling rate of 100 kSPS. The device features a serial interface for data output and accepts single-ended analog inputs. It requires a 5 V supply for both analog and digital sections. Key performance metrics include a Signal-to-Noise Ratio (SNR) of 85 dB, Integral Nonlinearity (INL) of +/- 3 LSB, and Differential Nonline (DNL) of +/- 2 LSB. The component is housed in a 20-pin SOIC package and supports an operating temperature range from -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrates a high-speed 16-bit SAR ADC core with a serial output interface for simplified microcontroller connectivity.
• Supports flexible reference configurations, allowing the use of either internal or external voltage references.
• Designed for low power consumption with a typical power dissipation of 100 mW at 5 V operation.

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring precise analog signal digitization.
• Data acquisition modules for monitoring sensor outputs in automated environments.
• Portable instrumentation devices where low power and moderate resolution are critical.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'CRSZ' against official Analog Devices documentation to confirm pinout compatibility and electrical specifications relative to other AD977 variants. Ensure that the serial interface timing requirements match the host processor's capabilities. Confirm RoHS compliance status through the manufacturer's current product status page before finalizing procurement plans.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 16-bit resolution and 100 kSPS throughput are required for single-ended input applications. Compare INL and DNL specifications against system accuracy requirements. Consider the SOIC-20 package constraints for PCB layout. Evaluate alternative packages such as PDIP if through-hole mounting is necessary for the specific application environment.

Analog To Digital Converters (ADC) Part Context

The AD977CRSZ belongs to the AD977 family of BiCMOS A/D converters. This series is characterized by its combination of speed and resolution suitable for general-purpose data conversion tasks. The CRZ suffix typically denotes a lead-free, RoHS-compliant version in the commercial temperature grade packaged in SOIC format.

Analog To Digital Converters (ADC) Replacement Considerations

Publicly documented direct substitutes include the ADS7809UB from Texas Instruments. Verify pin compatibility and register mapping differences before implementing any replacement in existing designs.