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AD8551ARMZ
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Product Detailed Parameters
- Description：IC OPAMP ZERO-DRIFT 1 CIRC 8MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Amplifier Type：Zero-Drift
- Number of Circuits：1
- Output Type：Rail-to-Rail
- Slew Rate：0.4V/µs
- Gain Bandwidth Product：1.5 MHz
- Current - Input Bias：10 pA
- Voltage - Input Offset：1 µV
- Current - Supply：850µA
- Current - Output / Channel：30 mA
- Voltage - Supply Span (Min)：2.7 V
- Voltage - Supply Span (Max)：5.5 V
- Operating Temperature：-40°C ~ 125°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Supplier Device Package：8-MSOP
- -3db Bandwidth：-
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Overview
The AD8551ARMZ is a single-channel, zero-drift operational amplifier from Analog Devices. It features rail-to-rail input and output capabilities with an offset voltage of 1 μV and drift of 0.005 μV/°C. Operating on a single supply between 2.7 V and 5 V, it draws 700 μA per amplifier. Key electrical parameters include a gain-bandwidth product of 1.5 MHz, slew rate of 0.4 V/μs, and CMRR/PSRR exceeding 130 dB. The device operates within the -40°C to +125°C temperature range.
Feature Summary
- Utilizes auto-zero stabilization architecture to achieve ultralow offset voltage and drift.
- Provides full rail-to-rail input and output voltage swing capability.
- Delivers high common-mode rejection ratio (CMRR) and power supply rejection ratio (PSRR).
- Operates without requiring external capacitors for stability.
Applications
- Temperature sensors
- Pressure sensors
- Precision current sensing
- Strain gage amplifiers
- Medical instrumentation
Procurement Notes
Verify the specific package suffix 'ARMZ' corresponds to the 8-lead MSOP configuration as defined in the official ordering guide. Confirm that the component meets RoHS compliance standards required for your assembly process. Ensure the operating environment remains within the specified -40°C to +125°C industrial temperature range to maintain guaranteed performance specifications.
Selection Notes
Select this component when sub-microvolt offset errors are critical and single-supply operation is required. The rail-to-rail I/O allows for maximum dynamic range in low-voltage systems. Consider the 700 μA supply current for power-constrained designs. Verify that the 1.5 MHz bandwidth meets the signal frequency requirements of the application circuit.
Part Context
The AD8551ARMZ belongs to the AD8551/AD8552/AD8554 family of precision amplifiers. While the AD8552 offers dual channels and the AD8554 provides four channels, the AD8551 is configured as a single amplifier. All members share the same zero-drift topology and electrical characteristics, differing primarily in channel count and pinout configurations.
Replacement Considerations
Direct functional replacements within the same series include the AD8552ARMZ (dual channel) and AD8554ARMZ (quad channel), provided the additional channels do not interfere with board layout or cost constraints. These parts share identical electrical specifications and pin-compatible architectures where applicable.
