Datasheet LTC6991 (Analog Devices) - 5

LTC6991
TYPICAL PERFORMANCE CHARACTERISTICS V+ = 3.3V, RSET = 200k, TA = 25°C unless otherwise noted. Frequency Error vs Temperature Frequency Error vs Temperature Frequency Error vs Temperature
3 3 3 GUARANTEED MAX OVER TEMPERATURE GUARANTEED MAX OVER TEMPERATURE GUARANTEED MAX OVER TEMPERATURE 2 2 2 RSET = 50k RSET = 200k RSET = 800k 3 PARTS 3 PARTS 3 PARTS 1 1 1 0 0 0 ERROR (%) ERROR (%) ERROR (%) –1 –1 –1 –2 GUARANTEED MIN OVER TEMPERATURE –2 GUARANTEED MIN OVER TEMPERATURE –2 GUARANTEED MIN OVER TEMPERATURE –3 –3 –3 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 6991 G01 6991 G02 6991 G03
Frequency Error vs RSET Frequency Drift vs Supply Voltage Typical VSET Distribution
3 0.5 250 2 LOTS GUARANTEED MAX OVER TEMPERATURE 0.4 DFN AND SOT-23 2 0.3 200 1274 UNITS 3 PARTS 0.2 1 0.1 150 0 0 ERROR (%) DRIFT (%) –0.1 100 –1 NUMBER OF UNITS –0.2 REFERENCED TO V+ = 4.5V –0.3 50 –2 GUARANTEED MIN OVER TEMPERATURE RSET = 50k –0.4 RSET = 200k RSET = 800k –3 –0.5 0 0 200 400 600 800 2 3 4 5 6 0.98 0.988 0.996 1.004 1.012 1.02 R SUPPLY VOLTAGE (V) V SET (kΩ) SET (V) 6991 G06 6991 G04 6991 G05
VSET Drift vs ISET VSET Drift vs Supply VSET vs Temperature
1.0 1.0 1.020 3 PARTS 0.8 0.8 1.015 0.6 0.6 1.010 0.4 0.4 0.2 0.2 1.005 (mV) 0 0 (V) 1.000 V SET –0.2 V SET DRIFT (mV) –0.2 0.995 –0.4 –0.4 0.990 –0.6 –0.6 –0.8 –0.8 0.985 REFERENCED TO ISET = 10µA REFERENCED TO V+ = 4V –1.0 –1.0 0.980 0 5 10 15 20 2 3 4 5 6 –50 –25 0 25 50 75 100 125 ISET (µA) SUPPLY (V) TEMPERATURE (°C) 6992 G07 6991 G08 6991 G09 Rev. D For more information www.analog.com 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts