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J310 Datasheet

Amplifier

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J310 pdf
J310
N-CHANNEL JFET
Linear Systems replaces discontinued Siliconix J310
The J310 is a high frequency n-channel JFET offering a
wide range and low noise performance. The TO-92
FEATURES 
DIRECT REPLACEMENT FOR SILICONIX J310 
package is well suited for cost sensitive applications
and mass production.
(See Packaging Information).
J310 Benefits:
ƒ High Power Low Noise gain
ƒ Dynamic Range greater than 100dB
ƒ Easily matched to 75input
J310 Applications:
OUTSTANDING HIGH FREQUENCY GAIN  
LOW HIGH FREQUENCY NOISE 
ABSOLUTE MAXIMUM RATINGS @ 25°C1  
Maximum Temperatures 
Storage Temperature 
Operating Junction Temperature 
Maximum Power Dissipation 
Continuous Power Dissipation  
MAXIMUM CURRENT
Gpg = 11.5dB 
NF = 2.7dB 
55°C to +150°C 
55°C to +135°C 
350mW 
ƒ UHV / VHF Amplifiers
ƒ Mixers
ƒ Oscillators
Gate Current 
MAXIMUM VOLTAGES 
Gate to Drain Voltage or  Gate to Source Voltage 
 
10mA 
 ‐25V 
 
  
J310 ELECTRICAL CHARACTERISTICS @ 25°C (unless otherwise noted)
SYMBOL 
CHARACTERISTIC 
MIN  TYP.  MAX  UNIT 
CONDITIONS 
BVGSS 
Gate to Source Breakdown Voltage  ‐25  ‐‐  ‐‐  V 
VDS = 0V, IG = ‐1µA 
VGS(F) 
Gate to Source Forward Voltage 
0.7  ‐‐ 
1 
VDS = 0V, IG = 10mA 
VGS(off) 
IDSS 
Gate to Source Cutoff Voltage 
2  ‐‐  ‐6.5 
Drain to Source Saturation Current2  24  ‐‐  60  mA 
VDS = 10V,  ID = 1nA 
VDS = 10V, VGS = 0V 
IG 
Gate Operating Current (Note 3) 
‐‐  ‐15  ‐‐  pA 
VDG = 9V,  ID = 10mA 
rDS(on) 
Drain to Source On Resistance 
‐‐  35  ‐‐ 
Ω 
VGS = 0V,  ID = 1mA 
 
 
    
 
J310 DYNAMIC ELECTRICAL CHARACTERISTICS @ 25°C (unless otherwise noted) 
SYMBOL 
CHARACTERISTIC 
MIN  TYP. 
gfs 
Forward Transconductance 
8  14 
gos 
Output Conductance 
‐‐  110 
Click ToCiss 
Input Capacitance 
‐‐  4 
MAX 
‐‐ 
250 
5 
Crss 
Reverse Transfer Capacitance 
‐‐  1.9  2.5 
BuyUNIT 
mS 
µS 
pF 
CONDITIONS 
VDS = 10V,   ID = 10mA , f = 1kHz 
VDS = 10V,   VGS = ‐10V , f = 1MHz  
en 
Equivalent Noise Voltage 
6 
‐‐ 
‐‐ 
nV/Hz 
VDS = 10V,    ID = 10mA ,  f = 100Hz 
 
 
    
 
J310 HIGH FREQUENCY CHARACTERISTICS @ 25°C (unless otherwise noted) 
SYMBOL 
CHARACTERISTIC 
MIN  TYP  MAX  UNIT 
CONDITIONS 
NF 
Noise Figure 
f = 105MHz 
‐‐ 
1.5 
‐‐ 
f = 450MHz 
‐‐ 
2.7 
‐‐ 
Gpg 
Power Gain3 
f = 105MHz 
‐‐ 
16 
‐‐ 
f = 450MHz 
‐‐ 
11.5 
‐‐ 
gfg 
Forward Transconductance  f = 105MHz 
‐‐ 
14 
‐‐ 
f = 450MHz 
‐‐ 
13 
‐‐ 
gog 
Output Conductance 
f = 105MHz 
‐‐ 
0.16 
‐‐ 
f = 450MHz 
‐‐ 
0.55 
‐‐ 
dB 
dB 
 
 
 
 
mS 
 
 
 
 
VDS = 10V,    ID = 10mA 
Note 1 ‐  Absolute maximum   ratings are   limiting values above which J310 serviceability may be impaired.  
Note 2 ‐  Pulse test : PW ≤ 3 00µs, Duty  Cycle ≤ 3% 
Note 3 ‐  Measured at optim  um input n oise match 
Micros s Components  Europe  
    
Available Packages:
J310 in TO-92
J310 in bare die.
TO-92 (Bottom View)
Tel: +44 1603 788967
Email: chipcomponents@micross.com
Web: http://www.micross.com/distribution
Please contact Micross for full
package and die dimensions
Information furnished by Linear Integrated Systems and Micross Components is believed to be accurate and reliable. However, no responsibility is assumed for its use; nor for any infringement of patents or
other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Linear Integrated Systems.
Micross Components Ltd, United Kingdom, Tel: +44 1603 788967, Fax: +44 1603788920, Email: chipcomponents@micross.com Web: www.micross.com/distribution.aspx


Part Number J310
Description Amplifier
Maker Micross
Total Page 1 Pages
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