Low input capacitance: 13 pF at V DS = 5 V
High gate-to-drain and gate-to-source breakdown voltage: –40 V
High transconductance: 30 mS
Packages: SOIC, 2-mm × 2-mm WSON
The JFE2140 is a Burr-Brown™ Audio, matched-pair discrete JFET built using Texas Instruments’ modern, high-performance, analog bipolar process. The JFE2140 features performance not previously available in older discrete JFET technologies. The JFE2140 offers excellent noise performance across all current ranges, where the quiescent current can be set by the user from 50 µA to 20 mA. When biased at 5 mA, the device yields 0.9 nV/√ Hz of input-referred noise, giving ultra-low noise performance with extremely high input impedance (> 1 TΩ). In addition, the matching between JFETs is tested to ±4 mV, providing low offset and high CMRR performance for differential pair configurations. The JFE2140 also features integrated diodes connected to separate clamp nodes to provide protection without the addition of high leakage, nonlinear external diodes.
The JFE2140 can withstand a high drain-to-source voltage of 40‑V, as well as gate-to-source and gate-to-drain voltages down to –40 V. The temperature range is specified from –40°C to +125°C.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | JFE2140 Ultra-Low Noise, Matched, Dual, Low-Gate Current, Discrete, Audio, N‑Channel JFET datasheet (Rev. B) | PDF | HTML | 31 Aug 2023 |
| Application brief | Ultra-Low-Noise JFET Preamplifier Design for High Impedance Sensors | PDF | HTML | 16 May 2024 | |
| Application note | JFE2140 Ultra-Low-Noise Pre-Amplifier | PDF | HTML | 02 Mar 2023 | |
| User guide | JFE2140 Evaluation Module Users Guide | PDF | HTML | 20 Sep 2022 | |
| Certificate | JFE2140EVM EU RoHS Declaration of Conformity (DoC) | 07 Sep 2022 |
For additional terms or required resources, click any title below to view the detail page where available.
Speed up your op amp prototyping and testing with the DIP adapter evaluation module (DIP-ADAPTER-EVM), which provides a fast, easy and inexpensive way to interface with small surface-mount ICs. You can connect any supported op amp using the included Samtec terminal strips or wire them (...)
The JFE2140 evaluation module (EVM) provides a basic functional evaluation of the JFE2140. The EVM is in a closed-loop preamplifier configuration providing 60 dB of gain on a split ±5-V supply. User modifications can be made for a variety of circuit configurations.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |
| WSON (DSG) | 8 | Ultra Librarian |
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