ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：DUAL, ULTRA-LOW NOISE, LOW-GATE-
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- FET Type：N-Channel
- Voltage - Breakdown (V(BR)GSS)：40 V
- Drain to Source Voltage (Vdss)：40 V
- Current - Drain (Idss) @ Vds (Vgs=0)：-
- Current Drain (Id) - Max：-
- Voltage - Cutoff (VGS off) @ Id：1.5 V @ 100 nA
- Input Capacitance (Ciss) (Max) @ Vds：17pF @ 0V
- Resistance - RDS(On)：-
- Power - Max：-
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-WFDFN Exposed Pad
- Supplier Device Package：8-WSON (2x2)
- Grade：-
- Qualification：-
Download product information
Overview
The JFE2140DSGR is a dual N-channel Junction Field-Effect Transistor (JFET) manufactured by Texas Instruments in an 8-pin WSON package. It features ultra-low noise performance, with input voltage noise of 0.9 nV/√Hz at 1 kHz and 5 mA drain current. The device offers low gate current (max 10 pA), high transconductance (30 mS), and tight channel matching (±4 mV). It supports a drain-to-source breakdown voltage of 40 V and operates within a temperature range of -40°C to +125°C.
Feature Summary
- Ultra-low noise performance suitable for high-sensitivity audio and sensor applications
- Integrated input protection diodes connected to separate clamp nodes
- Precision matched-pair configuration for differential applications
- Extremely high input impedance exceeding 1 TΩ
Applications
- Microphone inputs
- Hydrophones and marine equipment
- Professional audio mixers or control surfaces
- Guitar amplifiers and other music instrument amps
- Condition monitoring sensors
Procurement Notes
Verify the specific DSG suffix indicates the 2-mm × 2-mm WSON package variant. Confirm RoHS compliance status through official documentation. Ensure design accounts for the exposed thermal pad connection requirements specified in the datasheet. Validate that the ordering code matches the required production data revision.
Selection Notes
Select this component when designing front-end stages requiring minimal noise contribution from high-impedance sources. The integrated clamping diodes simplify protection circuitry compared to discrete alternatives. Consider the bias current range of 50 μA to 20 mA for optimizing noise versus power consumption trade-offs in battery-operated systems.
Part Context
This device belongs to the JFE2140 family of Burr-Brown™ Audio discrete JFETs. It utilizes Texas Instruments' modern analog bipolar process technology to achieve performance levels unattainable with older discrete JFET technologies. The DSG suffix specifically denotes the small form-factor WSON packaging option.
Replacement Considerations
Check for JFE2140D as a pin-compatible alternative in SOIC-8 packaging. Verify electrical characteristics match if substituting packages. No other direct substitutes are confirmed in public documentation.
