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Low Noise Negative Bias Generator

NEW - Custom reel may be available
Inventory: 15,378

Quality information

RoHS Yes
Lead finish / Ball material SN
MSL rating / Peak reflow Level-1-260C-UNLIM
Material content View
DPPM / MTBF / Fit rate View
Qualification summary View
Ongoing reliability monitoring View
Device marking View

Packaging information

Package | Pins Package qty | Carrier Operating temperature range (°C)
VSSOP (DGK) | 8 3,500 | LARGE T&R
Custom reel may be available
Q (-40 to 125)
Package | Pins VSSOP (DGK) | 8
Package qty | Carrier 3,500 | LARGE T&R
Custom reel may be available
Operating temperature range (°C) Q (-40 to 125)
View TI packaging information

Features for the LM7705

  • Regulated Output Voltage −0.232 V
  • Output Voltage Tolerance 5%
  • Output Voltage Ripple 4 mVPP
  • Supply Voltage 3 V to 5.25 V
  • Conversion Efficiency Up to 98%
  • Quiescent Current 78 µA
  • Shutdown Current 20 nA
  • Turnon Time 500 µs
  • Operating Temperature Range −40°C to 125°C
  • 8-Pin VSSOP Package

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Description for the LM7705

The LM7705 device is a switched capacitor voltage inverter with a low noise, −0.23 Vfixed negative voltage regulator. This device is designed to be used with low voltage amplifiers toenable the amplifiers output to swing to zero volts. The −0.23 V is used to supply the negativesupply pin of an amplifier while maintaining less then 5.5 V across the amplifier. Rail-to-Railoutput amplifiers cannot output zero volts when operating from a single-supply voltage and canresult in error accumulation due to amplifier output saturation voltage being amplified byfollowing gain stages. A small negative supply voltage will prevent the amplifiers output fromsaturating at zero volts and will help maintain an accurate zero through a signal processing chain.Additionally, when an amplifier is used to drive an input of the ADC, the amplifier can output azero voltage signal and the full input range of an ADC can be used. The LM7705 device has ashutdown pin to minimize standby power consumption.


Qty Price (USD)
1-99 $0.683
100-249 $0.464
250-999 $0.358
1,000+ $0.238

Additional package qty | carrier options

Package qty | Carrier 1,000 | SMALL T&R
Inventory 58,269
Qty | Price (USD) 1ku | $0.238 1-99 $0.683 100-249 $0.464 250-999 $0.358 1,000+ $0.238
Package qty | Carrier 250 | SMALL T&R
Inventory 7,848
Qty | Price (USD) 1ku | $0.274 1-99 $0.677 100-249 $0.521 250-999 $0.383 1,000+ $0.274