AD977BR

Analog To Digital Converters (ADC) Overview

The AD977BR is a 16-bit, 100 kSPS/200 kSPS BiCMOS Analog-to-Digital Converter (ADC) manufactured by Analog Devices Inc. It utilizes a Successive Approximation Register (SAR) architecture and features a single-ended input type with a serial data interface. The device operates on a single 5 V analog and digital power supply, consuming 100 mW of power. Key performance metrics include an SNR of 85 dB, DNL of +/- 2 LSB, INL of +/- 3 LSB, and gain error of +/- 0.5% FSR. It supports an operating temperature range from -40°C to +85°C and is available in a 20-SOIC surface-mount package.

Analog To Digital Converters (ADC) Feature Summary

• High-resolution 16-bit conversion capability using BiCMOS technology
• Flexible sampling rates supporting both 100 kSPS and 200 kSPS operations
• Integrated external or internal reference options for simplified design
• Serial interface compatibility for straightforward microcontroller integration

Analog To Digital Converters (ADC) Applications

• Precision industrial process control systems
• Data acquisition modules requiring high resolution
• Medical instrumentation signal processing
• Test and measurement equipment

Analog To Digital Converters (ADC) Procurement Notes

Verify component authenticity through authorized distributors due to potential obsolescence risks. Confirm RoHS compliance status and moisture sensitivity level handling requirements before procurement. Check for specific suffix variations that may indicate different temperature grades or packaging formats. Ensure supply chain stability as availability may be limited for legacy parts.

Analog To Digital Converters (ADC) Selection Notes

Select the AD977BR when 16-bit resolution and low power consumption are critical for single-channel applications. Compare against the AD977A variant if higher sampling rates or different temperature ranges are required. Consider the package constraints of the 20-SOIC form factor during PCB layout planning. Evaluate system noise requirements against the 85 dB SNR specification to ensure adequate dynamic range.

Analog To Digital Converters (ADC) Part Context

The AD977BR belongs to the AD977 family of 16-bit ADCs from Analog Devices. This series is designed for applications demanding high accuracy and low power. The BR suffix typically denotes a specific temperature grade or manufacturing lot within the broader AD977 product line, sharing core electrical characteristics with other variants like the AD977CRZ.

Analog To Digital Converters (ADC) Replacement Considerations

Direct substitutes include the AD977CRZ and AD977ARZ from Analog Devices. Cross-brand alternatives such as the ADS7809UB from Texas Instruments offer similar specifications but require interface verification.