LM4140 - 精密微功耗低压降电压基准

LM4140是TI德州仪器公司的一款串联电压基准产品，LM4140是精密微功耗低压降电压基准，本站介绍了LM4140的封装应用图解、特点和优点、功能等，并给出了与LM4140相关的TI元器件型号供参考。

LM4140 - 精密微功耗低压降电压基准 - 串联电压基准 - 电压基准 - 德州仪器

产品描述

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 utilized 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 Tempco, 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 0.5V to 4.5V, contact Texas Instruments.

产品特性

High Initial Accuracy: 0.1%
Ultra Low Noise
Low Temperature Coefficient: 3 ppm/°C (A grade)
Low Voltage Operation: 1.8V
Low Dropout Voltage: 20 mV (typ) @ 1mA
Supply Current: 230 μA (typ), ≤ 1 μA Disable Mode
Enable Pin
Output Voltage Options: 1.024V, 1.250V, 2.048V, 2.500V, and 4.096V
Custom Voltages from 0.5V to 4.5V
Temperature Range (0°C to 70°C)

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