Datasheet LT1720, LT1721 (Analog Devices) - 5
| Manufacturer | Analog Devices |
| Description | Dual/Quad, 4.5ns, Single Supply 3V/5V Comparators with Rail-to-Rail Outputs |
| Pages / Page | 28 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS. Input Current. Quiescent Supply … |
| File Format / Size | PDF / 274 Kb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. Input Current. Quiescent Supply Current. vs Differential Input Voltage. vs Temperature
Model Line for this Datasheet
- LT1720CDD#PBF LT1720CDD#PBF LT1720CDD#TRPBF LT1720CDD#TRPBF LT1720CMS8#PBF LT1720CMS8#PBF LT1720CMS8#TRPBF LT1720CMS8#TRPBF LT1720CS8#PBF LT1720CS8#PBF LT1720CS8#TRPBF LT1720CS8#TRPBF LT1720IDD#PBF LT1720IDD#PBF LT1720IDD#TRPBF LT1720IDD#TRPBF LT1720IMS8#PBF LT1720IMS8#PBF LT1720IMS8#TRPBF LT1720IMS8#TRPBF LT1720IS8#PBF LT1720IS8#PBF LT1720IS8#TRPBF LT1720IS8#TRPBF
Text Version of Document
LT1720/LT1721
TYPICAL PERFORMANCE CHARACTERISTICS Input Current Quiescent Supply Current Quiescent Supply Current vs Differential Input Voltage vs Temperature vs Supply Voltage
2 6.0 7 25°C 1 VCC = 5V 5.5 6 125°C 0 5.0 5 –1 4.5 25°C –2 VCC = 5V 4 4.0 –3 VCC = 3V 3 –55°C 3.5 –4 INPUT CURRENT (μA) 2 3.0 –5 1 –6 2.5 SUPPLY CURRENT PER COMPARATOR (mA) –7 2.0 0 –5 –4 –3 –2 –1 0 1 2 3 4 5 –50 –25 0 25 50 75 100 125 0 1 2 3 4 5 6 7 QUIESCENT SUPPLY CURRENT PER COMPARATOR (mA) DIFFERENTIAL INPUT VOLTAGE (V) TEMPERATURE (˚C) SUPPLY VOLTAGE (V) 17201 G04 17201 G05 17201 G06
Propagation Delay Propagation Delay Propagation Delay vs Load Capacitance vs Temperature vs Supply Voltage
9 8.0 5.0 25°C tPDLH 25°C RISING EDGE 8 V V STEP = 100mV CM = 1V V (t 7.5 STEP = 100mV OVERDRIVE = 20mV PDLH) V V OVERDRIVE = 20mV CC = 3V STEP = 100mV 7 V C CC = 5V 7.0 LOAD = 10pF CLOAD = 10pF 6 6.5 VCC = 5V 5 FALLING EDGE RISING EDGE (tPDHL) 6.0 OVERDRIVE = 5mV 4.5 (tPDLH) 4 DELAY (ns) 5.5 DELAY (ns) 3 VCC = 5V 5.0 2 PROPAGATION DELAY (ns) OVERDRIVE = 20mV FALLING EDGE 4.5 (tPDHL) 1 VCC = 3V 0 4.0 4.0 0 10 20 30 40 50 –50 –25 0 25 50 75 100 125 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 OUTPUT LOAD CAPACITANCE (pF) TEMPERATURE (°C) SUPPLY VOLTAGE (V) 17201 G07 17201 G08 17201 G09
Output Low Voltage Output High Voltage vs Load Current vs Load Current Supply Current vs Frequency
0.5 0.0 10 VCC = 5V VCC = 5V 25°C VCM = 1V (V) VCM = 1V V 9 CC = 5V V 125°C IN = –15mV 125°C CC –0.2 VIN = 15mV 0.4 125°C V 8 CC = 2.7V –55°C C –0.4 25°C LOAD = 20pF 25°C 7 0.3 –55°C –0.6 6 NO LOAD OUTPUT VOLTAGE (V) 5 0.2 –0.8 25°C 4 OUTPUT VOLTAGE RELATIVE TO V VCC = 2.7V SUPPLY CURRENT PER COMPARATOR (mA) 0.1 –1.0 3 0 4 8 12 16 20 0 4 8 12 16 20 0 10 20 30 40 OUTPUT SINK CURRENT (mA) OUTPUT SOURCE CURRENT (mA) FREQUENCY (MHz) 17201 G10 17201 G11 17201 G12 17201fc 5
TYPICAL PERFORMANCE CHARACTERISTICS Input Current Quiescent Supply Current Quiescent Supply Current vs Differential Input Voltage vs Temperature vs Supply Voltage
2 6.0 7 25°C 1 VCC = 5V 5.5 6 125°C 0 5.0 5 –1 4.5 25°C –2 VCC = 5V 4 4.0 –3 VCC = 3V 3 –55°C 3.5 –4 INPUT CURRENT (μA) 2 3.0 –5 1 –6 2.5 SUPPLY CURRENT PER COMPARATOR (mA) –7 2.0 0 –5 –4 –3 –2 –1 0 1 2 3 4 5 –50 –25 0 25 50 75 100 125 0 1 2 3 4 5 6 7 QUIESCENT SUPPLY CURRENT PER COMPARATOR (mA) DIFFERENTIAL INPUT VOLTAGE (V) TEMPERATURE (˚C) SUPPLY VOLTAGE (V) 17201 G04 17201 G05 17201 G06
Propagation Delay Propagation Delay Propagation Delay vs Load Capacitance vs Temperature vs Supply Voltage
9 8.0 5.0 25°C tPDLH 25°C RISING EDGE 8 V V STEP = 100mV CM = 1V V (t 7.5 STEP = 100mV OVERDRIVE = 20mV PDLH) V V OVERDRIVE = 20mV CC = 3V STEP = 100mV 7 V C CC = 5V 7.0 LOAD = 10pF CLOAD = 10pF 6 6.5 VCC = 5V 5 FALLING EDGE RISING EDGE (tPDHL) 6.0 OVERDRIVE = 5mV 4.5 (tPDLH) 4 DELAY (ns) 5.5 DELAY (ns) 3 VCC = 5V 5.0 2 PROPAGATION DELAY (ns) OVERDRIVE = 20mV FALLING EDGE 4.5 (tPDHL) 1 VCC = 3V 0 4.0 4.0 0 10 20 30 40 50 –50 –25 0 25 50 75 100 125 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 OUTPUT LOAD CAPACITANCE (pF) TEMPERATURE (°C) SUPPLY VOLTAGE (V) 17201 G07 17201 G08 17201 G09
Output Low Voltage Output High Voltage vs Load Current vs Load Current Supply Current vs Frequency
0.5 0.0 10 VCC = 5V VCC = 5V 25°C VCM = 1V (V) VCM = 1V V 9 CC = 5V V 125°C IN = –15mV 125°C CC –0.2 VIN = 15mV 0.4 125°C V 8 CC = 2.7V –55°C C –0.4 25°C LOAD = 20pF 25°C 7 0.3 –55°C –0.6 6 NO LOAD OUTPUT VOLTAGE (V) 5 0.2 –0.8 25°C 4 OUTPUT VOLTAGE RELATIVE TO V VCC = 2.7V SUPPLY CURRENT PER COMPARATOR (mA) 0.1 –1.0 3 0 4 8 12 16 20 0 4 8 12 16 20 0 10 20 30 40 OUTPUT SINK CURRENT (mA) OUTPUT SOURCE CURRENT (mA) FREQUENCY (MHz) 17201 G10 17201 G11 17201 G12 17201fc 5
