Datasheet LT6650 (Analog Devices) - 5

LT6650
W U TYPICAL PERFOR A CE CHARACTERISTICS (See Applications, Figure 1) Minimum Input-Output Voltage Output Short-Circuit Current vs Output Short-Circuit Current vs Differential (Sinking) Input Voltage Input Voltage
0 14 14 VOUT = 1.425V - TYP (RF = 100k, RG = 39.2k) OUTPUT SHORTED TO GND OUTPUT SHORTED TO VIN 0.1% VOUT 12 12 –100 25°C 125°C –55°C 10 10 –55°C –200 125°C 8 8 –300 25°C 25°C 6 6 OUTPUT CURRENT (mA) OUTPUT CURRENT (mA) INPUT-OUTPUT VOLTAGE (mV) –400 4 –55°C 4 125°C –500 2 2 10 100 1000 0 2 4 6 8 10 12 14 16 18 20 0 2 4 6 8 10 12 14 16 18 20 OUTPUT CURRENT(µA) INPUT VOLTAGE (V) INPUT VOLTAGE (V) 6650 G10 6650 G11 6650 G12
FB Pin Current vs FB Pin Voltage FB Pin Current vs FB Pin Voltage Gain and Phase vs Frequency
10 10 120 120 VFB ≠ VOUT VFB ≠ VOUT 8 CURRENT IS POSITIVE WHEN CURRENT IS POSITIVE WHEN 100 100 IT ENTERS THE DEVICE IT ENTERS THE DEVICE 6 125°C 80 80 4 1 PHASE (DEG) 60 GAIN 60 2 125°C PHASE 0 40 40 –2 GAIN (dB) 20 20 0.1 FB PIN CURRENT (nA) –4 FB PIN CURRENT (nA) 0 0 –55°C T –6 A = 25°C 25°C UNITY GAIN –20 –20 –8 RL = 2k 25°C –55°C CL = 1µF –10 0.01 –40 –40 –0.6 –0.4 –0.2 0 0.2 0.4 0.6 0.8 1.0 1 3 5 7 9 11 13 15 17 19 0.01 0.1 1 10 100 FB PIN VOLTAGE (V) FB PIN VOLTAGE (V) FREQUENCY (kHz) 6650 G14 6650 G13 6650 G15
Output Noise 0.1Hz to 10Hz Output Voltage Noise Spectrum Integrated Noise 10Hz to 1kHz
20 100 VIN = 5V VIN = 5V VIN = 5V CL = 1µF CL = 1µF ) IOUT = –200µA 15 RMS µV/DIV) √Hz) µV µV/ 10 10 I I OUT = 0µA OUT = –200µA NOISE LEVEL ( OUTPUT NOISE (5 5 INTEGRATED NOISE ( IOUT = –40µA 0 1 0 1 2 3 4 5 6 7 8 9 10 10 100 1k 10k 10 100 1k TIME (s) FREQUENCY (Hz) FREQUENCY (Hz) 6650 G17 6650 G16 6650 G18 6650fa 5