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OPAx391 Wide Bandwidth RRIO Operational Amplifier

Texas Instruments OPAx391 Wide Bandwidth RRIO Operational Amplifier (Op Amp) features a unique combination of high bandwidth (1MHz) along with a very low quiescent current (24µA) in a high-precision amplifier. These features, combined with rail-to-rail input and output, make this device an exceptional choice in high-gain, low-power applications. The ultra-low input bias current of 10fA, only 45µV of offset (maximum), and 1.2µV/°C of drift over temperature help maintain high precision in ratiometric and amperometric sensor front ends that have demanding low-power requirements.

Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.
Precision Amplifiers Dual micropower hi g h speed-to-power ra OPA2391YBJR Texas Instruments 1: $3.45 2,126In Stock	Mfr. Part # OPA2391YBJR Mouser Part # 595-OPA2391YBJR	Texas Instruments	Precision Amplifiers Dual micropower hi g h speed-to-power ra Learn More about Texas Instruments ti opa391 op amp	Datasheet	2,126In Stock	Cut Tape $3.45 $2.93 $2.80 Reel $2.02 $1.77 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Operational Amplifiers - Op Amps Dual micropower hi g h speed-to-power ra OPA2391DGKR Texas Instruments 1: $2.76 264In Stock 2,500Expected 2/1/2027 New Product	Mfr. Part # OPA2391DGKR Mouser Part # 595-OPA2391DGKR New Product	Texas Instruments	Operational Amplifiers - Op Amps Dual micropower hi g h speed-to-power ra Learn More about Texas Instruments ti opa391 op amp	Datasheet	264In Stock 2,500Expected 2/1/2027	Cut Tape $2.76 $2.06 $1.88 $1.69 View Reel $1.47 $1.60 $1.56 $1.48 $1.47 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Operational Amplifiers - Op Amps Quad micropower hi g h speed-to-power ra OPA4391PWR Texas Instruments 1: $4.00 2,685In Stock	Mfr. Part # OPA4391PWR Mouser Part # 595-OPA4391PWR	Texas Instruments	Operational Amplifiers - Op Amps Quad micropower hi g h speed-to-power ra Learn More about Texas Instruments ti opa391 op amp	Datasheet	2,685In Stock	Cut Tape $4.00 $3.01 $2.77 $2.50 $2.39 Reel $2.39 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1,001 : 3,000
Precision Amplifiers Micropower single hi gh-precision low-b OPA391DCKT OPA391DCKR Texas Instruments 1: $1.80 5,563In Stock 6,000Expected 12/7/2026	Mfr. Part # OPA391DCKR Mouser Part # 595-OPA391DCKR	Texas Instruments	Precision Amplifiers Micropower single hi gh-precision low-b OPA391DCKT Learn More about Texas Instruments ti opa391 op amp	Datasheet	5,563In Stock 6,000Expected 12/7/2026	Cut Tape $1.80 $1.32 $1.20 $1.07 Reel $0.897 View $1.00 $0.962 $0.957 $0.877 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Precision Amplifiers Dual micropower hi g h speed-to-power ra OPA2391YBJT Texas Instruments 1: $4.19 499In Stock	Mfr. Part # OPA2391YBJT Mouser Part # 595-OPA2391YBJT	Texas Instruments	Precision Amplifiers Dual micropower hi g h speed-to-power ra Learn More about Texas Instruments ti opa391 op amp	Datasheet	499In Stock	Cut Tape $4.19 $3.18 $2.92 $2.64 Reel $2.50 View $2.38 $2.28 $2.25 MouseReel Available	Min.: 1 Mult.: 1 : 250
Precision Amplifiers Micropower single hi gh-precision low-b OPA392DBVT OPA391DCKT Texas Instruments 1: $2.82 921In Stock	Mfr. Part # OPA391DCKT Mouser Part # 595-OPA391DCKT	Texas Instruments	Precision Amplifiers Micropower single hi gh-precision low-b OPA392DBVT Learn More about Texas Instruments ti opa391 op amp	Datasheet	921In Stock	Cut Tape $2.82 $2.11 $1.93 $1.73 Reel $1.62 View $1.57 $1.50 $1.47 $1.42 MouseReel Available	Min.: 1 Mult.: 1 : 250

OPAx391 Wide Bandwidth RRIO Operational Amplifier

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