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OPAx145 JFET Operational Amplifiers

Texas Instruments OPAx145 JFET Operational Amplifiers are low-power JFET input amplifiers that feature excellent drift, low current noise, and pico-ampere input bias current. These features make these devices suitable for amplifying small signals from high-impedance sensors. The rail-to-rail output swings to modern, single-supply, precision analog-to-digital converters (ADCs) and digital-to-analog converters (DACs). In addition, the input range that includes V– allows designers to simplify power management and take advantage of the single-supply, low-noise JFET architecture.

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Select	Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS
	Operational Amplifiers - Op Amps Single 5.5-MHz hig h slew rate low-noi A A 595-OPA145IDGKT OPA145IDGKR Texas Instruments 1: $2.61 A tariff of 38% may be applied if shipping to the United States. 1,690In Stock	Mfr. Part # OPA145IDGKR Mouser Part # 595-OPA145IDGKR	Texas Instruments	Operational Amplifiers - Op Amps Single 5.5-MHz hig h slew rate low-noi A A 595-OPA145IDGKT Learn More about Texas Instruments ti opa145 opa2145 opa4125	Datasheet	1,690In Stock	Cut Tape $2.61 $2.08 $1.95 $1.81 $1.76 Reel $1.75 MouseReel Available A tariff of 38% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 2,500
	Operational Amplifiers - Op Amps Single 5.5-MHz hig h slew rate low-noi A A 595-OPA145ID OPA145IDR Texas Instruments 1: $3.35 7,390In Stock	Mfr. Part # OPA145IDR Mouser Part # 595-OPA145IDR	Texas Instruments	Operational Amplifiers - Op Amps Single 5.5-MHz hig h slew rate low-noi A A 595-OPA145ID Learn More about Texas Instruments ti opa145 opa2145 opa4125	Datasheet	7,390In Stock	Cut Tape $3.35 $2.52 $2.31 $2.08 Reel $1.71 View $1.97 $1.94 $1.85 $1.66 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
	Operational Amplifiers - Op Amps Single 5.5-MHz hig h slew rate low-noi A A 595-OPA145IDR OPA145ID Texas Instruments 1: $3.79 712In Stock 1,725Expected 10/1/2026	Mfr. Part # OPA145ID Mouser Part # 595-OPA145ID	Texas Instruments	Operational Amplifiers - Op Amps Single 5.5-MHz hig h slew rate low-noi A A 595-OPA145IDR Learn More about Texas Instruments ti opa145 opa2145 opa4125	Datasheet	712In Stock 1,725Expected 10/1/2026	$3.79 $2.86 $2.42 $2.30 View $2.22 $2.16 $2.15 $2.04 $2.02	Min.: 1 Mult.: 1
	Operational Amplifiers - Op Amps Single 5.5-MHz hig h slew rate low-noi A A 595-OPA145IDBVR OPA145IDBVT Texas Instruments 1: $3.94 28,439On Order	Mfr. Part # OPA145IDBVT Mouser Part # 595-OPA145IDBVT	Texas Instruments	Operational Amplifiers - Op Amps Single 5.5-MHz hig h slew rate low-noi A A 595-OPA145IDBVR Learn More about Texas Instruments ti opa145 opa2145 opa4125	Datasheet	28,439On Order On Order Ship Dates Mfr. #: OPA145IDBVT Stock: 0 On Order: 2,689 Expected 2/1/2027 6,000 Expected 3/26/2027 19,750 Expected 2/21/2028 Factory Lead-Time: 9 Weeks	Cut Tape $3.94 $2.94 $2.69 $2.42 Reel $2.20 View $2.13 $2.05 $2.01 $1.99 MouseReel Available	Min.: 1 Mult.: 1 : 250
	Operational Amplifiers - Op Amps Single 5.5-MHz hig h slew rate low-noi A A 595-OPA145IDGKR OPA145IDGKT Texas Instruments 1: $3.79 A tariff of 38% may be applied if shipping to the United States. 241In Stock	Mfr. Part # OPA145IDGKT Mouser Part # 595-OPA145IDGKT	Texas Instruments	Operational Amplifiers - Op Amps Single 5.5-MHz hig h slew rate low-noi A A 595-OPA145IDGKR Learn More about Texas Instruments ti opa145 opa2145 opa4125	Datasheet	241In Stock	Cut Tape $3.79 $2.86 $2.63 $2.37 Reel $2.24 View $2.13 $2.05 $2.01 $1.99 MouseReel Available A tariff of 38% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 250
	Precision Amplifiers Dual 5.5-MHz high sl ew rate low-noise A A 595-OPA2145IDGKR OPA2145IDGKT Texas Instruments 1: $5.14 171In Stock	Mfr. Part # OPA2145IDGKT Mouser Part # 595-OPA2145IDGKT	Texas Instruments	Precision Amplifiers Dual 5.5-MHz high sl ew rate low-noise A A 595-OPA2145IDGKR Learn More about Texas Instruments ti opa145 opa2145 opa4125	Datasheet	171In Stock	Cut Tape $5.14 $3.91 $3.61 $3.27 Reel $3.03 View $2.93 $2.88 $2.85 MouseReel Available	Min.: 1 Mult.: 1 : 250
	Operational Amplifiers - Op Amps Dual 5.5-MHz high sl ew rate low-noise OPA2145IDR Texas Instruments 1: $4.60 56In Stock 5,000On Order	Mfr. Part # OPA2145IDR Mouser Part # 595-OPA2145IDR	Texas Instruments	Operational Amplifiers - Op Amps Dual 5.5-MHz high sl ew rate low-noise Learn More about Texas Instruments ti opa145 opa2145 opa4125	Datasheet	56In Stock 5,000On Order On Order Ship Dates Mfr. #: OPA2145IDR Stock: 56 Can Ship Immediately On Order: 2,500 Expected 10/22/2026 2,500 Expected 3/15/2027 Factory Lead-Time: 9 Weeks	Cut Tape $4.60 $3.50 $3.22 $2.91 View Reel $2.52 $2.77 $2.68 $2.52 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,500
	Operational Amplifiers - Op Amps Single 5.5-MHz hig h slew rate low-noi A A 595-OPA145IDBVT OPA145IDBVR Texas Instruments 1: $3.44 12,000On Order	Mfr. Part # OPA145IDBVR Mouser Part # 595-OPA145IDBVR	Texas Instruments	Operational Amplifiers - Op Amps Single 5.5-MHz hig h slew rate low-noi A A 595-OPA145IDBVT Learn More about Texas Instruments ti opa145 opa2145 opa4125	Datasheet	12,000On Order On Order Ship Dates Mfr. #: OPA145IDBVR Stock: 0 On Order: 3,000 Expected 2/25/2027 9,000 Expected 3/22/2027 Factory Lead-Time: 16 Weeks	Cut Tape $3.44 $2.57 $2.36 $2.08 Reel $1.77 View $1.97 $1.94 $1.89 $1.76 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
	Precision Amplifiers Dual 5.5-MHz high sl ew rate low-noise A A 595-OPA2145IDGKT OPA2145IDGKR Texas Instruments 1: $4.78 2,500Expected 11/12/2026	Mfr. Part # OPA2145IDGKR Mouser Part # 595-OPA2145IDGKR	Texas Instruments	Precision Amplifiers Dual 5.5-MHz high sl ew rate low-noise A A 595-OPA2145IDGKT Learn More about Texas Instruments ti opa145 opa2145 opa4125	Datasheet	2,500Expected 11/12/2026	Cut Tape $4.78 $3.62 $3.33 $3.01 View Reel $2.60 $2.85 $2.84 $2.68 $2.60 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,500