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Details for Texas Instruments


Precision Micropower Low Dropout Voltage Reference
Buy Directly from Texas Instruments (5959 in Stock)
$2.0300 per unit
Series Information for LM4140ACM-1.0/NOPB - Texas Instruments


  • feature
    Custom Voltages From 0.5 V to 4.5 V
  • feature
    Enable Pin
  • feature
    High Initial Accuracy: 0.1%
  • feature
    Low Dropout Voltage: 20 mV (Typical) at 1mA
  • feature
    Low Temperature Coefficient: 3 ppm/u00b0C (A Grade)
  • feature
    Low Voltage Operation: 1.8V
  • feature
    Output Voltage Options: 1.024 V, 1.25 V, 2.048 V, 2.5 V, and 4.096 V
  • feature
    Supply Current: 230 u00b5A (Typical), u2264 1 u00b5A Disable Mode
  • feature
    Temperature Range: 0u00b0C to 70u00b0C
  • feature
    Ultra-Low Noise


The LM4140 series of precision references are designed to combine high accuracy, low drift, and noise with low power dissipation in a small package. The LM4140 is the industry's first reference with output voltage options lower than the bandgap voltage. The key to the advance performance of the LM4140 is the use of EEPROM registers and CMOS DACs for temperature coefficient curvature correction and trimming of the output voltage accuracy of the device during the final production testing. The major advantage of this method is the much higher resolution available with DACs than is available economically with most methods used by other bandgap references. The low input and dropout voltage, low supply current, and output drive capability of the LM4140 makes this product an ideal choice for battery powered and portable applications. The LM4140 is available in three grades (A, B, C) with 0.1% initial accuracy and 3, 6, and 10 ppm/°C temperature coefficients. For even lower temperature coefficients, contact Texas Instruments. The device performance is specified over the temperature range 0°C to 70°C, and is available in compact 8-pin package. For other output voltage options from 0.5 V to 4.5 V, contact Texas Instruments.


Voltage Reference Type:
Series - Fixed
Product Range:
LM4140 Series
Reference Voltage:
Initial Accuracy:
Temperature Coefficient:
± 3ppm/°C
Voltage Reference Case Style:

Alternate Descriptions

Avnet America

V-Ref Precision 1.024V 8mA 8-Pin SOIC N Rail

Avnet America product

Avnet Europe

V-Ref Precision 1.024V 8mA 8-Pin SOIC N Rail

Avnet Europe product

Texas Instruments

Precision Micropower Low Dropout Voltage Reference

Texas Instruments product


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