TI OPA2182IDGKR

12/09/2025
- 7SE

Overview

The OPA2182IDGKR is a dual zero-drift operational amplifier designed for high-accuracy, low-noise analog signal processing. It offers exceptional DC precision with ±0.45 µV typical offset voltage, 0.003 µV/°C typical drift, and 5.7 nV/√Hz noise density, making it ideal for data acquisition, instrumentation, and precision sensing applications. With a wide supply range of 4.5 V to 36 V, rail-to-rail output, and fast settling suitable for multiplexed systems, the device supports both single-supply and dual-supply architectures.

Core Parameters

Parameter	Specification
Channels	Dual op-amp
Supply Voltage Range	4.5 V to 36 V
Input Offset Voltage	±0.45 µV typical, ±4 µV max
Offset Drift	0.003 µV/°C typical, 0.012 µV/°C max
Noise Density	5.7 nV/√Hz at 1 kHz
Input Bias Current	50 pA typical
Gain Bandwidth Product	5 MHz
Slew Rate	10 V/µs
Output	Rail-to-rail
Operating Temperature	–40°C to +125°C
Package	VSSOP-8 (DGK)

Features

Zero-drift architecture for ultra-stable precision over temperature
Extremely low offset and drift enable accurate long-term measurements
Low noise (5.7 nV/√Hz) for sensitive analog front-ends
Wide 4.5 V–36 V supply supports industrial and high-voltage modules
Rail-to-rail output improves dynamic range in single-supply systems
MUX-friendly input stage reduces errors when switching channels
10 V/µs slew rate and 5 MHz bandwidth balance speed and precision
Low input bias current supports high-impedance sensors and transducers

Typical Application Scenarios

Application	Reason to Use OPA2182IDGKR
Data Acquisition Systems	Zero-drift accuracy ensures stable low-level signal capture
Sensor Signal Conditioning	Low bias current and low noise ideal for pressure, strain, and temperature sensors
Instrumentation & Test Equipment	High precision and low drift support long-term measurement stability
Industrial Analog Input Modules	Wide supply voltage and rail-to-rail output fit 24 V industrial systems
Multiplexed Analog Front-Ends	MUX-friendly architecture improves channel-to-channel settling
Weigh Scales & Load Cells	Ultra-low offset and drift ensure microvolt-level measurement resolution

Performance Comparison

Feature	OPA2182IDGKR	Standard Precision Op-Amp	Zero-Drift Competitor
Offset Voltage	±0.45 µV typ	50–500 µV	1–10 µV
Drift	0.003 µV/°C typ	1–10 µV/°C	0.03–0.3 µV/°C
Noise	5.7 nV/√Hz	10–20 nV/√Hz	5–10 nV/√Hz
Supply Voltage	4.5–36 V	2.7–36 V	2.7–36 V
Slew Rate	10 V/µs	1–5 V/µs	2–10 V/µs

The OPA2182IDGKR ranks at the top in offset, drift, and low-noise precision, making it highly competitive for professional-grade analog designs.

Conclusion

The OPA2182IDGKR delivers outstanding precision with ultra-low offset, minimal drift, and low noise performance. Combined with a wide supply range, rail-to-rail output, and compatibility with multiplexed inputs, it is a strong choice for industrial measurement systems, instrumentation, and high-accuracy embedded designs requiring long-term stability and microvolt-level sensitivity.

Manufacturer Profile

The OPA2182IDGKR is produced by Texas Instruments (TI), a global leader in high-performance analog technology. TI’s precision amplifier family is known for exceptional DC accuracy, robust reliability, and broad support for industrial, instrumentation, and sensing applications.

For more information and to review our available inventory, please contact our team for detailed pricing, current stock levels, and any additional technical support you may need.

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