Description
The LM4040 series of shunt voltage references are versatile, easy-to-use references that cater to a vast array of applications. The 2-pin fixed-output device requires no external capacitors for operation and is stable with all capacitive loads. Additionally, the reference offers low dynamic impedance, low noise, and low temperature coefficient to ensure a stable output voltage over a wide range of operating currents and temperatures. The LM4040 uses fuse and Zener-zap reverse breakdown voltage trim during wafer sort to offer four output voltage tolerances, ranging from 0.1% (max) for the A grade to 1% (max) for the D grade. Thus, a great deal of flexibility is offered to designers in choosing the best cost-to-performance ratio for their applications.
Packaged in space-saving SOT-23-3 package and requiring a minimum current of 45 uA (typ), the LM4040 also is ideal for portable applications.
- Fixed Output Voltages of 2.048V
- Tight Output Tolerances and Low Temperature Coefficient
- Max 1.0%, 150 ppm/C – D Grade
- Low Output Noise: 35 uVRMS Typ
- Wide Operating Current Range: 45 uA Typ to 15 mA
- Stable With All Capacitive Loads; No Output Capacitor Required
- Temperature Range: –40C to 85C
LM4040 Simplified Schematic
