ADA4255ACPZ-RL

Overview

The ADA4255ACPZ-RL is a zero drift, high voltage programmable gain instrumentation amplifier with an integrated bipolar charge pump. It provides 36 precision gains from 1/16 V/V to 176 V/V and features ±60 V protected inputs. Key electrical parameters include a maximum input offset voltage of ±14 μV, a maximum drift of ±0.08 μV/°C, and a minimum CMRR of 111 dB at G = 1 V/V. The device operates on supplies between 2.7 V and 5.5 V, consumes 83 mW at DVDD = 3 V, and functions within a temperature range of −40°C to +105°C.

Feature Summary

• Zero drift architecture self-calibrates DC errors and lower frequency noise for excellent precision over the specified temperature range.
• Integrated bipolar charge pumps generate internal high voltage supplies to enable wide input voltage ranges without lowering input impedance.
• Robust ±60 V protected 2:1 input multiplexer simplifies isolation requirements in industrial systems.
• Gain calibration via internal memory achieves extremely low gain drift and minimizes system calibration requirements.

Applications

• Universal process control front ends
• Data acquisition systems
• Test and measurement systems
• System power monitoring

Procurement Notes

Verify the specific package variant and reel specifications against the manufacturer's current documentation before ordering. Confirm that the supply chain source provides valid traceability and authenticity guarantees. Ensure the procurement channel supports the required shipping restrictions and regional availability constraints associated with this component.

Selection Notes

Select this component when high precision and robustness are required in single-supply applications. The integrated charge pump eliminates the need for external high voltage generation circuits. The wide input range and ±60 V protection make it suitable for harsh industrial environments where sensor signals may exceed standard logic levels.

Part Context

This part belongs to Analog Devices' family of precision programmable gain instrumentation amplifiers. It is designed to interface directly with analog-to-digital converters in data acquisition chains. The device integrates digital control interfaces and safety features, reducing the bill of materials for complex industrial signal conditioning modules.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.