AD977ABR

Analog To Digital Converters (ADC) Overview

The AD977ABR is a 16-bit, high-speed analog-to-digital converter manufactured by Analog Devices Inc. It operates with a sampling rate of up to 200 kSPS and utilizes a BiCMOS architecture. The device features a serial input/output interface and accepts single-ended voltage inputs. It is designed for operation within a temperature range of -40°C to +85°C and is housed in a 20-lead SOIC surface-mount package. Key performance metrics include a signal-to-noise ratio of 85 dB, differential nonlinearity of ±1 LSB, and integral nonlinearity of ±2 LSB. The component dissipates 100 mW of power and functions on a single 5 V supply.

Analog To Digital Converters (ADC) Feature Summary

• High-resolution 16-bit data conversion capability
• Integrated serial peripheral interface for simplified digital connectivity
• Low power consumption design suitable for battery-operated systems
• Wide industrial operating temperature range

Analog To Digital Converters (ADC) Applications

• Portable instrumentation requiring high accuracy
• Industrial process control systems
• Medical equipment signal acquisition
• Data acquisition modules

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'ABR' to confirm the SOIC package and industrial temperature grade. Confirm end-of-life status as distribution availability varies. Ensure the design supports the required serial communication protocol. Validate that the 5V single-supply requirement matches the system power architecture before procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component when 16-bit resolution and low power are critical constraints. Compare against the AD977AANZ if through-hole packaging is preferred instead of surface mount. Consider the AD977ABP for alternative package options. Verify that the 200 kSPS maximum speed meets the application bandwidth requirements without unnecessary oversampling overhead.

Analog To Digital Converters (ADC) Part Context

The AD977ABR belongs to the AD977 family of precision ADCs from Analog Devices. This series is characterized by its combination of high resolution and low power consumption. The AB variant specifically denotes the industrial temperature range and the R suffix indicates the SOIC surface-mount package configuration within the product line.

Analog To Digital Converters (ADC) Replacement Considerations

Direct substitutes include the AD977ABP for different packaging or the AD977AANZ for through-hole mounting. Cross-vendor alternatives such as the ADS7809UB may be considered for pin-compatible replacements, though software and electrical parameter verification is required.