Datasheet LT1236 (Analog Devices) - 4

LT1236
ELECTRICAL CHAR C A TERISTICS VIN = 15V, IOUT = 0, TA = 25
°
C, unless otherwise noted.
realized by preconditioning the IC with a 100-200 hour, 125°C burn in. temperature. Output voltage is always measured at 25°C, but the IC is Long term stability will also be affected by differential stresses between the cycled to 50°C or 0°C before successive measurements. Hysteresis is IC and the board material created during board assembly. Temperature roughly proportional to the square of temperature change. Hysteresis is cycling and baking of completed boards is often used to reduce these not normally a problem for operational temperature excursions, but can be stresses in critical applications. significant in critical narrow temperature range applications where the
Note 7:
Hysteresis in output voltage is created by package stress that instrument might be stored at high or low temperatures. differs depending on whether the IC was previously at a higher or lower
W U TYPICAL PERFOR A CE CHAR C A TERISTICS Minimum Input/Output Ripple Rejection Ripple Rejection Differential, LT1236-10
115 130 1.6 f = 150Hz VIN = 15V TJ = 125 °C 120 COUT = 0 1.4 110 110 1.2 TJ = –55 °C LT1236-10 LT1236-10 105 100 1.0 TJ = 25 °C 100 90 0.8 LT1236-5 80 LT1236-5 0.6 REJECTION (dB) 95 REJECTION (dB) 70 0.4 INPUT/OUTPUT VOLTAGE (V) 90 60 0.2 85 50 0 0 5 10 15 20 25 30 35 40 10 100 1k 10k 0 2 4 6 8 10 12 14 16 18 20 INPUT VOLTAGE (V) FREQUENCY (Hz) OUTPUT CURRENT (mA) LT1236 G01 LT1236 G02 LT1236 G03
Start-Up (Series Mode) Start-Up (Shunt Mode), LT1236-10 Output Voltage Noise Spectrum
13 11 400 VIN = 0V TO 12V 12 LT1236-10 350 10 11 LT1236-10 300 10 √Hz) 9 9 1k 250 VOUT + 2V VOUT 0V 8 8 OUT 200 NC IN 7 GND 150 LT1236-10 7 OUTPUT VOLTAGE (V) 6 OUTPUT VOLTAGE (V) LT1236-5 NOISE VOLTAGE (nV/ 100 LT1236-5 5 6 4 50 3 5 0 0 2 4 6 8 10 12 14 0 2 4 6 8 10 12 10 100 1k 1M TIME (µs) TIME (µs) FREQUENCY (Hz) LT1236 G06 LT1236 G04 LT1236 G05 4