AD876JSTZ

Overview

The AD876JSTZ is a CMOS, 10-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates with a single +5 V supply and dissipates 160 mW of power. The device features a 20 MSPS sampling rate and utilizes a multistage pipelined architecture with output error correction logic to ensure accurate performance. It includes an on-chip input sample-and-hold amplifier and guarantees no missing codes over the full operating temperature range. The component is housed in a 48-lead Thin Quad Flatpack (TQFP) package.

Feature Summary

• Multistage pipelined architecture with output error correction logic for high accuracy
• On-chip input sample-and-hold amplifier integrated within the CMOS design
• Force and sense connections to reference inputs minimize external voltage drops
• Three-state outputs compatible with +5 V or +3.3 V digital I/O logic

Applications

• High-speed data acquisition systems requiring 10-bit resolution
• Industrial process control applications utilizing pipeline ADCs
• Communications equipment interfacing with single-supply logic

Procurement Notes

Verify component authenticity through authorized channels as the AD876 series may be subject to obsolescence notices. Confirm that the TQFP-48 package matches the target PCB footprint. Ensure that the external reference circuitry supports the force/sense connection requirements specified in the datasheet to maintain differential nonlinearity specifications.

Selection Notes

Select this component when a single-channel, 10-bit resolution at 20 MSPS is required with low power consumption. Consider the TQFP-48 package constraints for board layout. Verify compatibility with system logic levels (+5 V or +3.3 V) due to the digital I/O interface. Evaluate the need for external reference buffering given the force/sense pin configuration.

Part Context

The AD876 belongs to the AD876 family of CMOS A/D converters from Analog Devices. This series offers pin-compatible 8-bit options alongside the 10-bit variant. The JSTZ suffix indicates the specific 48-lead TQFP package and industrial temperature grade. The device represents a mid-performance solution balancing speed and power dissipation for general-purpose conversion tasks.

Replacement Considerations

Check for direct pin-compatible alternatives within the AD876 family, such as the 8-bit variants if resolution can be reduced. Verify availability of newer generation ADCs from Analog Devices with similar 20 MSPS throughput and 10-bit resolution.