Datasheet LTC6655, LTC6655LN (Analog Devices) - 9

LTC6655/LTC6655LN
TYPICAL PERFORMANCE CHARACTERISTICS Characteristic curves are similar for most voltage options of the LTC6655. Curves from the LTC6655-1.25, LTC6655-2.5 and the LTC6655-5 represent the range of performance across the entire family of references. Characteristic curves for other output voltages fall between these curves and can be estimated based on their voltage output. 2.5V Temperature Drift 2.5V SHDN Input Voltage 2.5V VOUT Distribution Distribution Thresholds vs VIN
100 14 2.5 TA = 25°C –40°C TO 125°C 90 12 80 2.0 70 TS 10 VTH_UP 60 AR 1.5 8 (V) 50 VTH_DN 40 6 V TRIP 1.0 NUMBER OF PARTS 30 NUMBER OF P 4 20 0.5 2 10 0 0 0.0 2.4992 2.4996 2.5000 2.5004 2.5008 0 0.4 0.8 1.2 1.6 2 2.4 2.8 2 4 6 8 10 12 14 VOUT (V) DRIFT (ppm/C) VIN (V) 6655 G21 6655 G19 6655 G20
2.5V Power Supply Rejection 2.5V Output Impedance Ratio vs Frequency vs Frequency 2.5V Line Regulation
120 10 2.502 COUT = 2.7µF COUT = 10µF 100 COUT = 100µF TIO (dB) 2.501 80 1 TAGE (V) 60 2.500 Y REJECTION RA 40 0.1 OUTPUT VOL OUTPUT IMPEDENCE (Ω) 2.499 20 COUT = 2.7µF 125°C POWER SUPPL COUT = 10µF 25°C COUT = 100µF –40°C 0 0.01 2.498 0.001 0.01 0.1 1 10 100 0.001 0.01 0.1 1 10 100 1000 0 2 4 6 8 10 12 14 FREQUENCY (kHz) FREQUENCY (kHz) INPUT VOLTAGE (V) 6655 G22 6655 G23 6655 G24 Rev. J For more information www.analog.com 9 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Available Options Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Revision History Typical Application Related Parts