POPA2991IDDFR Texas Instruments Integrated Circuit (SOT23 (8-Pin)) In Stock
Texas Instruments POPA2991IDDFR is a dual 40 V rail-to-rail input/output op amp with 4.5 MHz bandwidth, 130 dB typical CMRR, 750 µV maximum offset voltage, and low noise, housed in an 8-pin SOT-23 package for precision industrial signal conditioning.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (8-Pin)
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- POPA2991IDDFR 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
What are the key features of POPA2991IDDFR?
- 40 V supply rating with 4.5 MHz gain-bandwidth product suits high-voltage industrial measurement front-ends
- 130 dB typical CMRR and 750 µV maximum input offset voltage deliver precision performance in differential signal chains
- Rail-to-rail input and output in a compact 8-pin SOT-23 package minimizes PCB footprint in dual-channel amplifier stages
What is POPA2991IDDFR used for?
The POPA2991IDDFR is optimized for industrial process-control systems, 4-20 mA current loop receivers, and programmable logic controller analog input modules that require operation up to 40 V supplies. Its 130 dB CMRR and 4.5 MHz bandwidth make it a strong choice for precision difference amplifiers, instrumentation stages, and motor drive current-sensing circuits. The dual-channel configuration in an 8-pin SOT-23 package reduces BOM complexity in space-constrained field transmitters and sensor signal conditioners.
What are the specifications of POPA2991IDDFR?
| Date Of Intro | 2020-03-25 |
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Common-mode Reject Ratio-Min | 109dB |
| Common-mode Reject Ratio-Nom | 130dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 750 µV |
| JESD-30 Code | R-PDSO-G8 |
| Low-Bias | YES |
| Low-Offset | YES |
| Micropower | NO |
| Number of Functions | 2 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.1 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Power | NO |
| Programmable Power | NO |
| Slew Rate-Nom | 21V/us |
| Supply Current-Max | 1.37mA |
| Supply Voltage Limit-Max | 42V |
| Supply Voltage-Nom (Vsup) | 4V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Unity Gain BW-Nom | 4500 |
| Voltage Gain-Min | 158489.3192 |
| Wideband | YES |
| Package | SOT23 (8-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Where can I find the POPA2991IDDFR datasheet?
POPA2991IDDFR Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for POPA2991IDDFR?
Compatible alternatives and drop-in replacements for POPA2991IDDFR:
Frequently Asked Questions
What supply voltage and bandwidth does the POPA2991IDDFR support for industrial signal conditioning?
The POPA2991IDDFR operates from supplies up to 40 V and provides a gain-bandwidth product of 4.5 MHz per channel, making it suitable for wide-bandwidth differential signal conditioning in industrial 24 V and 36 V systems with good phase margin across audio and control frequencies.
How does the POPA2991IDDFR's CMRR specification compare to standard op amps for rejection of common-mode noise?
With a typical CMRR of 130 dB and a minimum of 109 dB, the POPA2991IDDFR rejects common-mode noise significantly better than general-purpose op amps rated at 70-80 dB, enabling accurate differential measurements even in electrically noisy industrial environments with 50 Hz or 60 Hz interference.
Can the POPA2991IDDFR replace discrete solutions in a 4-20 mA current loop receiver front-end?
Yes; its 40 V tolerance, 750 µV maximum offset, and rail-to-rail output allow direct use as a differential receiver or I-to-V converter in 4-20 mA loop powered transmitters, replacing multi-chip discrete circuits and saving approximately 50 % board space in the 8-pin SOT-23 package.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 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.
More from Texas Instruments
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.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit