Linear Systems replaces discontinued Siliconix U406 with

LSU406
LOW NOISE, LOW DRIFT
MONOLITHIC DUAL
N-CHANNEL JFET
Linear Systems replaces discontinued Siliconix U406 with LSU406
The U406/ LSU406 is a Low Noise, Low Drift, Monolithic Dual N-Channel JFET
The LSU406 is a high-performance monolithic dual
JFET featuring extremely low noise, tight offset voltage
and low drift over temperature specifications, and is
targeted for use in a wide range of precision
instrumentation applications. The LSU406 features a 5mV offset and 10-µV/°C drift. The LSU406 is a direct
replacement for discontinued Siliconix U406.
The hermetically sealed TO-71 & TO-78 packages are
well suited for military applications. The 8 Pin P-DIP
and 8 Pin SOIC provide ease of manufacturing, and the
symmetrical pinout prevents improper orientation.
(See Packaging Information).
U406 / LSU406 Applications:
ƒ
ƒ
ƒ
ƒ
Wideband Differential Amps
High-Speed,Temp-Compensated Single-Ended
Input Amps
High-Speed Comparators
Impedance Converters and vibrations detectors.
ELECTRICAL CHARACTERISTICS @ 25°C (unless otherwise noted)
SYMBOL CHARACTERISTICS MIN. BVGSS Breakdown Voltage 50 BVGGO Gate‐To‐Gate Breakdown ±50 TRANSCONDUCTANCE YfSS Full Conduction 2000 YfS Typical Operation 1000 |YFS1‐2 / Y FS| Mismatch ‐‐ DRAIN CURRENT IDSS Full Conduction 0.5 |IDSS1‐2 / IDSS| Mismatch at Full Conduction ‐‐ GATE VOLTAGE VGS(off) or Vp Pinchoff voltage ‐0.5 VGS(on) Operating Range ‐‐ GATE CURRENT ‐IGmax. Operating ‐‐ ‐IGmax. High Temperature ‐‐ ‐IGSSmax. At Full Conduction ‐‐ ‐IGSSmax. High Temperature 5 OUTPUT CONDUCTANCE YOSS Full Conduction ‐‐ YOS Operating ‐‐ COMMON MODE REJECTION CMR ‐20 log | V GS1‐2/ V DS| 95 NOISE NF Figure ‐‐ en Voltage ‐‐ CAPACITANCE CISS Input ‐‐ CRSS Reverse Transfer ‐‐ Note 1 – These ratings are limiting values above which the serviceability of any semiconductor may be impaired
Available Packages:
FEATURES LOW DRIFT LOW NOISE LOW PINCHOFF ABSOLUTE MAXIMUM RATINGS @ 25°C (unless otherwise noted) | V GS1‐2 / T| = 10µV/°C TYP. en = 6nV/Hz @ 10Hz TYP. Vp = 2.5V TYP. Maximum Temperatures Storage Temperature ‐65°C to +150°C Operating Junction Temperature +150°C Maximum Voltage and Current for Each Transistor – Note 1 ‐VGSS Gate Voltage to Drain or Source 50V ‐VDSO Drain to Source Voltage 50V ‐IG(f) Gate Forward Current 10mA Maximum Power Dissipation Device Dissipation @ Free Air – Total 300mW MATCHING CHARACTERISTICS @ 25°C UNLESS OTHERWISE NOTED
SYMBOL CHARACTERISTICS VALUE UNITS CONDITIONS | V GS1‐2 / T| max. DRIFT VS. 80 µV/°C VDG=10V, ID=200µA TEMPERATURE TA=‐55°C to +125°C | V GS1‐2 | max. OFFSET VOLTAGE 40 mV VDG=10V, ID=200µA TYP. 60 ‐‐ ‐‐ ‐‐ 0.6 ‐‐ 1 ‐‐ ‐‐ ‐4 ‐‐ ‐‐ 5 ‐‐ 0.2 ‐‐ ‐‐ 20 ‐‐ ‐‐ MAX. ‐‐ ‐‐ 7000 2000 3 10 5 ‐2.5 ‐2.3 ‐15 ‐10 100 5 20 2 ‐‐ 0.5 ‐‐ 8 1.5 UNITS V V µmho µmho % mA % V V pA nA pA pA µmho µmho dB dB nV/Hz pF pF TO-71 / TO-78 (Top View)
CONDITIONS VDS = 0 ID=1nA I G= 1nA ID= 0 IS= 0 VDG= 10V VGS= 0V f = 1kHz VDG= 15V ID= 200µA f = 1kHz VDG= 10V VGS= 0V VDS= 15V ID= 1nA VDS=15V ID=200µA VDG= 15V ID= 200µA TA= +125°C
VDS =0 VDG= 15V TA= +125°C VDG= 10V VGS= 0V VDG= 15V ID= 500µA VDS = 10 to 20V ID=30µA VDS= 15V VGS= 0V RG= 10M f= 100Hz NBW= 6Hz VDS=15V ID=200µA f=10Hz NBW=1Hz VDS= 15V ID= 200µA f= 1MHz P-DIP / SOIC (Top View)
U406 / LSU406 in TO-71 & TO-78
U406 / LSU406 in PDIP & SOIC
U406 / LSU406 available as bare die
Please contact Micross for full package and die dimensions
Micross Components Ltd, United Kingdom, Tel: +44 1603 788967, Fax: +44 1603788920, Email: [email protected] Web: www.micross.com/distribution.aspx