LT1236 ELECTRICAL CHAR CA TERISTICS VIN = 10V, IOUT = 0, TA = 25 ° C, unless otherwise noted.LT1236-5PARAMETERCONDITIONSMINTYPMAXUNITS Load Regulation (Sinking Current) 0 ≤ IOUT ≤ 10mA 60 100 ppm/mA (Note 3) ● 150 ppm/mA Supply Current 0.8 1.2 mA ● 1.5 mA Output Voltage Noise 0.1Hz ≤ f ≤ 10Hz 3.0 µVP-P (Note 5) 10Hz ≤ f ≤ 1kHz 2.2 3.5 µVRMS Long-Term Stability of Output Voltage (Note 6) ∆t = 1000Hrs Non-Cumulative 20 ppm Temperature Hysteresis of Output (Note 7) ∆T = ±25°C 10 ppm VIN = 15V, IOUT = 0, TA= 25 ° C, unless otherwise noted.LT1236-10PARAMETERCONDITIONSMINTYPMAXUNITS Output Voltage (Note 1) LT1236A-10 9.995 10.000 10.005 V LT1236B-10/LT1236C-10 9.990 10.000 10.010 V Output Voltage Temperature Coefficient (Note 2) TMIN ≤ TJ ≤ TMAX LT1236A-10 2 5 ppm/°C LT1236B-10 5 10 ppm/°C LT1236C-10 10 15 ppm/°C Line Regulation (Note 3) 11.5V ≤ VIN ≤ 14.5V 1.0 4 ppm/V ● 6 ppm/V 14.5V ≤ VIN ≤ 40V 0.5 2 ppm/V ● 4 ppm/V Load Regulation (Sourcing Current) 0 ≤ IOUT ≤ 10mA 12 25 ppm/mA (Note 3) ● 40 ppm/mA Load Regulation (Shunt Mode) 1.7mA ≤ ISHUNT ≤ 10mA 50 100 ppm/mA (Notes 3, 4) ● 150 ppm/mA Series Mode Supply Current 1.2 1.7 mA ● 2.0 mA Shunt Mode Minimum Current VIN is Open 1.1 1.5 mA ● 1.7 mA Output Voltage Noise (Note 5) 0.1Hz ≤ f ≤ 10Hz 6.0 µVP-P 10Hz ≤ f ≤ 1kHz 3.5 6 µVRMS Long-Term Stablility of Output Voltage (Note 6) ∆t = 1000Hrs Non-Cumulative 30 ppm Temperature Hysteresis of Output (Note 7) ∆T = ±25°C 5 ppm The ● denotes specifications which apply over the specified temperature Note 5: RMS noise is measured with a 2-pole highpass filter at 10Hz and a range. 2-pole lowpass filter at 1kHz. The resulting output is full-wave rectified and then integrated for a fixed period, making the final reading an average as Note 1: Output voltage is measured immediately after turn-on. Changes opposed to RMS. Correction factors are used to convert from average to due to chip warm-up are typically less than 0.005%. RMS, and 0.88 is used to correct for the non-ideal bandbass of the filters. Note 2: Temperature coefficient is measured by dividing the change in Peak-to-peak noise is measured with a single highpass filter at 0.1Hz and a output voltage over the temperature range by the change in temperature. 2-pole lowpass filter at 10Hz. The unit is enclosed in a still-air environment Incremental slope is also measured at 25 ° C. to eliminate thermocouple effects on the leads. Test time is 10 seconds. Note 3: Line and load regulation are measured on a pulse basis. Output Note 6: Long-term stability typically has a logarithmic characteristic and changes due to die temperature change must be taken into account therefore, changes after 1000 hours tend to be much smaller than before separately. that time. Total drift in the second thousand hours is normally less than Note 4: Shunt mode regulation is measured with the input open. With the one third that of the first thousand hours, with a continuing trend toward input connected, shunt mode current can be reduced to 0mA. Load reduced drift with time. Significant improvement in long-term drift can be regulation will remain the same. 3
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