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Bare Die Product Detail: LSK170A

N-Channel Low Noise Amp.:
Ultra-low noise N-Channel JFET amplifier. LSK170A for low noise at high & low frequency with narrow IDSS range & low capacitance. Linearity in VGS transfer function provides high stability. See LSJ74 series for P-Channel complement.
This device features ultra-low noise, high breakdown voltage, gain, input impedance and capacitance and is an improved second source for Toshiba 2SK170. For equivalent monolithic dual see LSK389 family.
Features:
  • Ultra-low noise to capacitance ratio
  • Uniquely linear VGS transfer function
  • Narrow range of low value IDSS for design tolerancing, particularly in low voltage applications
  • High BVDSS for maximum linear headroom in high transient program content amplifiers

Applications:

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

Test conditions:

  • BVGSS -40V @ ID = -100µA, VDS = 0V
  • IGSS(MAX) -1000pA @ VGS= -10V, VDS = 0V
  • VP(MIN) -0.2V @ VDS= 10V, ID= 1nA
  • VP(MAX) -2V @ VDS= 10V, ID= 1nA
  • IDSS(MIN) 2.6mA @ VDS= 10V, VGS = 0V
  • IDSS(MAX) 6.5mA @ VDS= 10V, VGS = 0V
  • en 0.9nV/Hz(TYP) @ VDS = 10V, ID = 2mA, f = 1kHz, NBW = 1Hz
  • gfs(TYP) 22mS @ VDS=10V, VGS = 0V, f = 1kHz
  • CISS(MAX) 20pF @ VDS= 15V, ID= 100µA, f = 1 MHz
  • CRSS(MAX) 5pF @ VDS= 15V, ID= 100µA, f = 1 MHz
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:
    N/A
Specification:
BVGSS: -40V
IGSS: -1,000pA
VGS(OFF) MIN: -0.2V
VGS(OFF) MAX: -2.0V
IDSS(MIN): 2.6mA
IDSS(MAX): 6.5mA
IDSS @ VDS: 10V
en: 0.9nV√Hz
gfs(MIN): 22.0mS
CISS(MAX): 20pF
CRSS(MAX): 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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