| Specialized | 2 | Obsolete | |
| Power Management (PMIC) | 43 | Obsolete | |
| Power Management (PMIC) | 11 | Active | |
| Voltage Reference | 5 | Obsolete | |
| Voltage Reference | 104 | Active | |
| Power Management (PMIC) | 7 | Obsolete | |
LM4132-Q10.05% 20-ppm/°C drift precision series voltage reference with shutdown enable | Voltage Reference | 112 | Active | The LM4132 family of precision voltage references performs comparable to the best laser-trimmed bipolar references, but in cost-effective CMOS technology. The key to this breakthrough is the use of EEPROM registers for correction of curvature, temperature coefficient (tempco), and accuracy on a CMOS band-gap architecture allowing package-level programming to overcome assembly shift. The shifts in voltage accuracy and tempco during assembly of die into plastic packages limit the accuracy of references trimmed with laser techniques.
Unlike other LDO references, the LM4132 can deliver up to 20 mA and does not require an output capacitor or buffer amplifier. These advantages along with the SOT-23 packaging are important for space-critical applications.
Series references provide lower power consumption than shunt references, because they do not have to idle the maximum possible load current under no-load conditions. This advantage, the low quiescent current (60 µA), and the low dropout voltage (400 mV) make the LM4132 ideal for battery-powered solutions.
The LM4132 is available in five grades (A, B, C, D and E) for greater flexibility. The best grade devices (A) have an initial accuracy of 0.05% with a specified temperature coefficient of 10 ppm/°C or less, while the lowest grade devices (E) have an initial accuracy of 0.5% and a tempco of 30 ppm/°C.
The LM4132 family of precision voltage references performs comparable to the best laser-trimmed bipolar references, but in cost-effective CMOS technology. The key to this breakthrough is the use of EEPROM registers for correction of curvature, temperature coefficient (tempco), and accuracy on a CMOS band-gap architecture allowing package-level programming to overcome assembly shift. The shifts in voltage accuracy and tempco during assembly of die into plastic packages limit the accuracy of references trimmed with laser techniques.
Unlike other LDO references, the LM4132 can deliver up to 20 mA and does not require an output capacitor or buffer amplifier. These advantages along with the SOT-23 packaging are important for space-critical applications.
Series references provide lower power consumption than shunt references, because they do not have to idle the maximum possible load current under no-load conditions. This advantage, the low quiescent current (60 µA), and the low dropout voltage (400 mV) make the LM4132 ideal for battery-powered solutions.
The LM4132 is available in five grades (A, B, C, D and E) for greater flexibility. The best grade devices (A) have an initial accuracy of 0.05% with a specified temperature coefficient of 10 ppm/°C or less, while the lowest grade devices (E) have an initial accuracy of 0.5% and a tempco of 30 ppm/°C. |
LM41400.1% 3-ppm/°C precision micropower low-dropout series voltage reference with enable pin | Power Management (PMIC) | 37 | Active | 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.
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. |
| Linear | 5 | Obsolete | |
| Interface | 2 | Obsolete | |
