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TI LM7705MM/NOPB product image
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TI LM7705MM/NOPBRoHS

Manufacturer
TI
MPN
LM7705MM/NOPB
LCSC Part #
C129980
Packaging
MSOP-8
Customer #
Key Attributes
Low-Noise Negative Bias Generator
Datasheetpdf iconTI LM7705MM/NOPB
In-Stock: 1,933
1,933 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 0.919$ 0.92
10+$ 0.7483$ 7.48
30+$ 0.662$ 19.86
100+$ 0.5775$ 57.75
500+$ 0.527$ 263.50
1,000+$ 0.501$ 501.00
Standard Packaging1000/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators
ManufacturerTI
PackagingMSOP-8
Operating Temperature-40℃~+125℃
FunctionInverted
Frequency - Switching92kHz
FeaturesLow ripple / low noise architecture;Low-power standby
Operating Voltage3V~5.25V
Output Voltage-232mV
Output Current26mA
Energy Efficiency98%
Quiescent Current78uA
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging1000
Sales UnitPiece

Introduction

AI Translation

The LM7705 device is a switched capacitor voltage inverter with a low noise, -0.23 V fixed negative voltage regulator. This device is designed to be used with low voltage amplifiers to enable the amplifiers output to swing to zero volts. The -0.23 V is used to supply the negative supply pin of an amplifier while maintaining less then 5.5 V across the amplifier. Railto-Rail output amplifiers cannot output zero volts when operating from a single-supply voltage and can result in error accumulation due to amplifier output saturation voltage being amplified by following gain stages. A small negative supply voltage will prevent the amplifiers output from saturating 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 a zero voltage signal and the full input range of an ADC can be used. The LM7705 device has a shutdown pin to minimize standby power consumption.

Features

AI Translation
  • Regulated Output Voltage −0.232 V
  • Output Voltage Tolerance 5%
  • Output Voltage Ripple 4 mVPP
  • Maximum Output Current 26 mA
  • 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

Applications

AI Translation
  • True Zero Amplifier Outputs
  • Portable Instrumentation
  • Low-Voltage Split-Power Supplies