OPA188AIDR

Instrumentation, Op Amps, Buffer Amps Overview

The OPA188AIDR is a single-channel, zero-drift operational amplifier manufactured by Texas Instruments. It features rail-to-rail input and output capabilities with a gain-bandwidth product of 2 MHz and a slew rate of 800 mV/µs. Key electrical specifications include an input offset voltage of 6 µV, input bias current of 160 pA, and input voltage noise density of 8.8 nV/√Hz. The device operates on a supply voltage range of 4 V to 36 V (±2 V to ±18 V) with a quiescent current of 450 µA per channel. It provides an output current of 16 mA and maintains a common-mode rejection ratio of 146 dB. The component functions within a temperature range of -40°C to +125°C and is housed in an 8-pin SOIC package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Zero-drift architecture utilizing chopper stabilization to minimize input offset voltage drift over temperature and time.
• Rail-to-rail input and output stages enabling full dynamic signal swing across the entire supply voltage range.
• High precision performance characterized by low input offset voltage and ultra-low input bias current for minimal loading effects.

Instrumentation, Op Amps, Buffer Amps Applications

• Precision sensor signal conditioning
• Medical instrumentation
• Industrial process control

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm pinout compatibility and functional equivalence. Ensure the selected variant matches the required package type and operating temperature range for the intended design environment. Cross-reference the part number with authorized distributors to validate authenticity and traceability before procurement.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when designing circuits requiring high DC accuracy without external trimming. The zero-drift technology makes it suitable for applications sensitive to temperature variations. Consider the 2 MHz bandwidth and 800 mV/µs slew rate for moderate-speed signal processing needs. Evaluate the 450 µA quiescent current against power constraints in battery-operated systems.

Instrumentation, Op Amps, Buffer Amps Part Context

This device belongs to the OPA188 series of precision amplifiers from Texas Instruments. It shares architectural similarities with other zero-drift op-amps but offers single-channel configuration in an 8-pin SOIC package. The series is designed to replace traditional chopper-stabilized amplifiers while providing improved AC performance and lower power consumption.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct substitutes include the OPA188AIR and OPA188ID variants within the same family. Verify pinout and electrical specifications against the original datasheet before substitution.

Instrumentation, Op Amps, Buffer Amps FAQ

What is the typical input offset voltage drift for the OPA188AIDR?

The input offset voltage drift is typically 0.003 µV/°C, ensuring stable performance over wide temperature ranges.

Does the OPA188AIDR support single-supply operation?

Yes, the device supports single-supply operation starting from 4 V due to its rail-to-rail input and output capabilities.