POPA2189IDR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments POPA2189IDR is a 14 MHz zero-drift, rail-to-rail output CMOS precision operational amplifier with 8 µV maximum offset voltage and 120 dB CMRR. It offers MUX-friendly low-noise performance for demanding measurement applications. Available in 8-pin SOIC package from global stock.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- POPA2189IDR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Zero-drift architecture maintains input offset voltage below 8 µV over the full temperature range, eliminating drift errors in precision DC measurements
- 14 MHz gain-bandwidth product enables fast signal processing in multiplexed sensor acquisition systems with minimal bandwidth penalty
- 120 dB minimum CMRR (168 dB typical) rejects common-mode noise in differential signal chains and instrumentation front-ends
- Rail-to-rail output swing and CMOS input stage allow single-supply operation down to low voltages while preserving full dynamic range
Applications
The POPA2189IDR excels in precision data acquisition front-ends where low offset voltage and zero drift are critical, such as thermocouple amplifiers, strain gauge bridges, and 24-bit ADC driver circuits. Its 14 MHz bandwidth and MUX-friendly input make it ideal for multiplexed medical instrumentation, portable analytical equipment, and industrial sensor conditioning modules. Battery-powered handheld meters and weigh scales also benefit from its CMOS input stage and rail-to-rail output for accurate measurement across the full supply range.
Specifications
| Date Of Intro | 2018-10-05 |
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.01 µA |
| Common-mode Reject Ratio-Min | 120dB |
| Common-mode Reject Ratio-Nom | 168dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 8 µV |
| JESD-30 Code | R-PDSO-G8 |
| Low-Bias | NO |
| Low-Offset | NO |
| Micropower | NO |
| Neg Supply Voltage Limit-Max | -20 V |
| Number of Functions | 2 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Power | NO |
| Programmable Power | YES |
| Slew Rate-Nom | 20V/us |
| Supply Current-Max | 3.6mA |
| Supply Voltage Limit-Max | 20V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Unity Gain BW-Nom | 8000 |
| Voltage Gain-Min | 10000000 |
| Wideband | NO |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for POPA2189IDR:
Frequently Asked Questions
How does the zero-drift architecture of the POPA2189IDR maintain accuracy across temperature?
The zero-drift chopper-stabilized architecture continuously corrects the input offset voltage, keeping it below 8 µV maximum across the entire operating temperature range. This eliminates the typical offset drift of 0.1 µV/°C seen in standard CMOS amplifiers, ensuring stable measurements in thermally variable environments such as industrial enclosures or automotive cabins.
What signal bandwidth is available for fast multiplexed sensor channels using the POPA2189IDR?
The POPA2189IDR provides a 14 MHz gain-bandwidth product, allowing unity-gain stable amplification with settling times fast enough for multiplexed 16-bit or 24-bit ADC applications. At a gain of 10, usable signal bandwidth extends to approximately 1.4 MHz, accommodating industrial sensors operating at several hundred kilohertz.
In which precision measurement circuits is the 120 dB CMRR of the POPA2189IDR most advantageous?
Bridge transducer amplifiers measuring small differential signals of 1 mV to 10 mV riding on a large common-mode voltage benefit most from the 120 dB minimum CMRR (168 dB typical). The high rejection keeps common-mode noise contributions below 1 µV even with 1 V of supply-rail ripple, which is essential for load cells and pressure sensors in noisy industrial environments.
Can the POPA2189IDR operate from a single 3.3 V supply in portable instruments?
Yes. The CMOS input stage and rail-to-rail output allow full-specification operation from a single 3.3 V supply. The output swings within millivolts of both rails, preserving the full 3.3 V dynamic range for 16-bit ADC inputs. Quiescent current is low enough for battery-powered handheld meters requiring extended runtime.
Related Guides
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 2026
ADAQ7768-1 Design Guide for Precision Vibration and Dynamic Signal Measurement
Design ADAQ7768-1 precision data acquisition channels for vibration and dynamic sensing with the right bandwidth, reference, clock, and layout choices.
Jun 30, 2026
AD5204BRZ10 Design Guide for SPI-Controlled Gain and Offset Calibration
Design AD5204BRZ10 digital potentiometer calibration loops with bounded trim span, safe wiper current, clean SPI routing, and reliable startup codes.
Jun 30, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“FindMyChip sourced our entire STM32 BOM in 48 hours when our usual distributor had 16-week lead times.”