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Bare Die Product Detail: LSK389C

N-Channel Dual Monolithic:
Monolithic Dual N-Channel JFET amplifier - Ultra-low noise, low drift, low capacitance. The LSK389C uses a unique interleaved construction to deliver excellent matching & thermal tracking with high signal-to-noise ratio.
LSK389C is an improved replacement for discontinued Toshiba 2SK389 & cross-reference replacement for Interfet, Intersil, Motorola, National / Fairchild, Philips, Vishay / Siliconix 2N5564, 2N5565, 2N5566 & U430. For single version see LSK170 family.
Features:
  • Wide output swing & high signal-to-noise ratio
  • Narrow IDSS range for ease of tolerance in low voltage applications
  • 40V breakdown for max linear headroom in high transient program content amplifiers
  • Low input noise to capacitance product with nearly zero popcorn noise

Applications:

  • Audio amplifiers & pre-amplifiers
  • Discrete low-noise operational amplifiers
  • Battery operated audio pre-amplifiers
  • Guitar pickups, effects pedals, microcphones, audio mixer consoles
  • Acoustic sensors & Sonic imaging
  • Sonobuoys, hydrophones
  • Chemical & radiation detectors
  • Instrumentation amplifiers
  • Accelerometers
  • CT scanner input stage
  • Oscilloscope input stage
  • Electrometers
  • Vibration detectors

Test conditions:

  • BVGSS -40V @ IG = -1 mA, VDS = 0V
  • IGSS(MAX) -200 pA @ VGS = -30V, VDS = 0V
  • |VGS1-VGS2|(MAX) 20mV @ VDS = 10V, ID = 1mA
  • VP(MIN) -0.15V @ VDS = 10V, ID = 100 nA
  • VP(MAX) -2V @ VDS = 10V, ID = 100 nA
  • IDSS(MIN) 10mA @ VDS = 10V, VGS = 0V
  • IDSS(MAX) 20mA @ VDS = 10V, VGS = 0V
  • Gfs(MIN) 8000µS @ VDG = 10V, VGS = 0V, f = 1kHz
  • en(MAX) 2.5nV/√Hz @ VDS = 10V, ID = 2000µA, f = 1kHz, NBW = 1Hz
  • CISS(MAX) 25pF @ VDS = 10V, ID = µA, VGS = 0V, f = 1MHz
  • CRSS(MAX) 5.5pF @ VDS = 10V, VGS = 0V, ID = 0µA, f = 1MHz
Vendor:
Linear Systems
  Electrical Datasheet

Die Physical Data:
Footprint: 1.137mm² (1763mil²)
  Request Pad Layout
Product Families: Used for this device are tabulated below.
Functional:
  • Type: Ultra-low Noise
Specification:
BVGSS: -40V
IGSS: -200pA
|VGS1-VGS2|: 20mV
∆|VGS1-VGS2|/∆T:   n/a
VGS(OFF) MIN: -0.15V
VGS(OFF) MAX: -2.0V
IDSS(MIN): 10.00mA
IDSS(MAX): 20.0mA
gfs(MIN): 8,000µS
en: 2.5nV√Hz
CISS(MAX): 25pF
CRSS(MAX): 5.5pF
Other Detail: Important information for this device is tabulated below.
Traffic light setting for Minimum Order Quantity indicates the following:
  • Green:Available from stock or at low factory MOQ.
  • Amber: Available on factory order with MOQ.
  • Red: High factory MOQ may apply, please ask for details.
Traffic light setting for High Reliability indicates the following:
  • Green: This bare die is specified and tested for use in high reliability applications.
  • Amber: This bare die can meet higher reliability specifications with additional testing & qualification, please ask for details.
  • Red: This bare die is not specified or specifically designed for use in high reliability applications.
Traffic light setting for Space Grade indicates the following:
  • Green: This bare die is qualified for space applications or has space level qualification data, please ask for details.
  • Amber: This bare die can be specified for space applications with additional testing and qualification, please ask for details.
  • Red: Suitability of this bare die for space applications is unknown and requires further qualification, please ask for details.

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