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.
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.