The Linear Technology LT1021 is a precision reference with ultra-low drift and noise, extremely good long term stability and almost total immunity to input voltage variations. The reference output will both source and sink up to 10mA. Three voltages are available: 5V, 7V and 10V. The 7V and 10V units can be used as shunt regulators (two-terminal zeners) with the same precision characteristics as the three terminal connection. Special care has been taken to minimize thermal regulation effects and temperature induced hysteresis. The LT1021 references are based on a buried zener diode structure that eliminates noise and stability problems associated with surface breakdown devices. Further, a subsurface zener exhibits better temperature drift and time stability than even the best bandgap references. Unique circuit design makes the LT1021 the first IC reference to offer ultra-low drift without the use of high power on-chip heaters. The LT1021-7 does not use a resistive divider to set output voltage, and therefore exhibits the best long term stability and temperature hysteresis. The LT1021-5 and LT1021- 10 are intended for systems requiring a precise 5V or 10V reference with an initial tolerance as low as ±0.05%.
- Ultra-low drift: 5ppm/°C max slope
- Very low noise: 100dB ripple rejection
- Minimum input/output differential of 1V
- Available in 5-Lead CAN, N8 and S8 packages
- Operating temp.: 0 to 70°C
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