ZNBG3000

Features: · Provides bias for GaAs and HEMT FETs· Drives up to three FETs· Dynamic FET protection· Drain current set by external resistor· Regulated negative rail generator requires only 2 external capacitors· Choice in drain voltage· Wide supply voltage range· QSOP surface mount packageApplicatio...

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ZNBG3000 Picture
SeekIC No. : 004551746 Detail

ZNBG3000: Features: · Provides bias for GaAs and HEMT FETs· Drives up to three FETs· Dynamic FET protection· Drain current set by external resistor· Regulated negative rail generator requires only 2 external ...

floor Price/Ceiling Price

Part Number:
ZNBG3000
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2022/6/27

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Product Details

Description



Features:

· Provides bias for GaAs and HEMT FETs
· Drives up to three FETs
· Dynamic FET protection
· Drain current set by external resistor
· Regulated negative rail generator requires only 2 external capacitors
· Choice in drain voltage
· Wide supply voltage range
· QSOP surface mount package





Application

· Satellite receiver LNBs
· Private mobile radio (PMR)
· Cellular telephones
· Single in single out C Band LNB





Pinout

  Connection Diagram




Specifications

Supply Voltage -0.6V to 15V
Supply Current 100mA
Drain Current (per FET)(set by RCAL1 and RCAL2) 0 to 15mA
Output Current 100mA
Operating Temperature -30to70
Storage Temperature -40 to 85
Power Dissipation (Tamb 25)QSOP16 500mW


Part Number ZNBG3000
LNA
Bias Stages
3
Mixer
Bias Stages
0
LNA
Vdrain (V)
2.2
LNA
Idrain (mA)
0 to 15
Iq (mA) 5
VCC (V) 5.0 to 12.0
Vneg (V) -3.0





Description

The ZNBG series of devices are designed to meet the bias requirements of GaAs and HEMT FETs commonly used in satellite receiver LNBs, PMR, cellular telephones etc. with a minimum of external components.

With the addition of two capacitors and a resistor the  ZNBG series  devices provide drain voltage and current control for 3 external grounded source FETs, generating the regulated negative rail required for FET gate biasing whilst operating from a single supply. This negative bias, at -3 volts, can also be used to supply other external circuits. The ZNBG3000/1 contains three bias stages. A single resistor allows FET drain current to be set to the desired level. The series also offers the choice of drain voltage to be set for the FETs, the ZNBG3000 gives 2.2 volts drain whilst the ZNBG3001 gives 2 volts.

These  ZNBG series  devices are unconditionally stable over the full working temperature with the FETs in place, subject to the inclusion of the recommended gate and drain capacitors. These ensure RF stability and minimal injected noise.

 ZNBG series  is possible to use less than the devices full complement of FET bias controls, unused drain and gate connections can be left open circuit without affecting operation of the remaining bias circuits.In order to protect the external FETs the circuits have been designed to ensure that, under any conditions including power up/down transients, the gate drive from the bias circuits cannot exceed the range -3.5V to 0.7V. Furthermore if the negative rail experiences a fault condition, such as overload or short circuit, the drain supply to the FETs will shut down avoiding excessive current flow.The ZNBG3000/1 are available in QSOP16 packages for the minimum in devices size. Device operating temperature is -40 to 70°C to suit a wide range of environmental conditions.






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