Datasheet LT1431 (Analog Devices) - 4

LT1431
Typical perForMance characTerisTics 2.5V Reference IK vs VKA VREF and IREF vs V+ VREF and IREF vs V+
1000 2.505 3.5 2.505 3.5 900 2.504 3.0 2.504 3.0 800 2.503 2.5 2.503 2.5 700 2.502 2.0 2.502 2.0 IMIN 600 2.501 I 1.5 REF 2.501 I 1.5 REF (V) VREF (µA) (V) (µA) (µA) 500 2.500 1.0 2.500 1.0 I K V V REF REF 400 V REF 2.499 0.5 2.499 0.5 IREF 300 2.498 0 2.498 0 IREF 200 2.497 –0.5 2.497 –0.5 100 2.496 –1.0 2.496 –1.0 0 2.495 –1.5 2.495 –1.5 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 0 4 8 12 16 20 24 28 32 36 40 VKA (V) V+ (V) V+ (V) LT1431 TPC01 LT1431 TPC02 LT1431 TPC03
ILIMIT vs Temperature with COLLECTOR VSAT vs VREF and IREF vs Temperature External Resistor Temperature vs Current
2.5025 1.00 1.250 1.20 V I AT 25°C REF LIMIT = 0.7 R 2.5000 0.66 1.125 LIM + 3.6 1.00 ICOLL = 100mA 2.4975 0.33 1.000 0.80 IREF (V) IREF (µA) (V) 2.4950 0 0.875 0.60 V REF (NORMALIZED) V SAT ICOLL = 50mA 2.4925 –0.33 0.750 0.40 I LIMIT I 2.4900 –0.66 0.625 0.20 COLL = 20mA ICOLL = 10mA 2.4875 –1.00 0.500 0 –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) LT1431 TPC04 LT1431 TPC05 LT1431 TPC06
Voltage Gain and Phase Transconductance and Phase Propagation Delay vs Overdrive vs Frequency vs Frequency (REF to COLL)
150 140 180 1010 180 135 5V 1k PHASE 3 1 OUTPUT 120 135 109 135 120 V PHASE REF ± OVERDRIVE LT1431 (dB) 100 A 90 Ω 108 90 105 V 5 6 V PHASE (DEG) PHASE (DEG) (µ ) 90 80 45 107 45 m gm 75 60 0 106 0 60 40 –45 105 –45 45 REF-TO-COLL g PROPAGATION DELAY (µs) OUTPUT HIGH-TO-LOW 20 –90 104 –90 30 REF-TO-COLL 1k LOAD A 15 OUTPUT LOW-TO-HIGH 0 –135 103 –135 0 –20 –180 102 –180 0 50 100 150 200 250 100 1k 10k 100k 1M 10M 100 1k 10k 100k 1M 10M OVERDRIVE (mV) FREQUENCY (Hz) FREQUENCY (Hz) LT1431 TPC07 LT1431 TPC08 LT1431 TPC09 1431fe 4 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Schematic Diagram Package Description Revision History Package Description Related Parts