Datasheet LT6118 (Analog Devices) - 8
| Fabricante | Analog Devices |
| Descripción | Current Sense Amplifier, Reference and Comparator with POR |
| Páginas / Página | 24 / 8 — Typical. perForMance characTerisTics Performance characteristics taken at … |
| Formato / tamaño de archivo | PDF / 352 Kb |
| Idioma del documento | Inglés |
Typical. perForMance characTerisTics Performance characteristics taken at TA = 25°C,
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LT6118
Typical perForMance characTerisTics Performance characteristics taken at TA = 25°C, V+ = 12V, VPULLUP = V+, VLE = 2.7V, RIN = 100Ω, ROUT = R1 + R2 = 10k, gain = 100, RC = 25.5k, CL = CLC = 2pF, unless otherwise noted. (See Figure 2) Comparator Rise/Fall Time Comparator Step Response Comparator Step Response vs Pull-Up Resistor (5mV INC Overdrive) (100mV INC Overdrive)
10000 VOH = 0.9 • VPULLUP V+ = 5V V+ = 5V V V VINC OL = 0.1 • VPULLUP INC 100mV INC OVERDRIVE 0.5V/DIV 0.5V/DIV C 0V 0V L = 2pF 1000 FALLING INPUT V V OUTC OUTC 2V/DIV 2V/DIV ALL TIME (ns) 0V 0V RISE/F 100 RISING INPUT VLE VLE 5V/DIV 5V/DIV 0V 0V 10 1 10 100 1000 5µs/DIV 5µs/DIV RC PULL-UP RESISTOR (kΩ) 6118 G31 6118 G32 6118 G30
Comparator Step Response Comparator Step Response (5mV INC Overdrive) (100mV INC Overdrive) Comparator Reset Response
VINC VINC 0.5V/DIV 0.5V/DIV 0V 0V VOUTC 5V/DIV 0V VOUTC VOUTC 1V/DIV 1V/DIV VLE 0V 0V 2V/DIV V+ = 5V V+ = 5V 0V VLE = 0V VLE = 0V 5µs/DIV 5µs/DIV 5µs/DIV 6118 G33 6118 G34 6118 G35
pin FuncTions SENSELO (Pin 1):
Sense Amplifier Input. This pin must
OUTC (Pin 3):
Open-Drain Comparator Output. Off-state be tied to the load end of the sense resistor. voltage may be as high as 60V above V–, regardless of
LE (Pin 2):
Latch Control Pin. When high, the comparator V+ used. latch is enabled. With the comparator latch enabled, the
V– (Pin 4):
Negative Supply Pin. This pin is normally con- comparator output will latch at a low level once tripped. nected to ground. When the LE input is low, the comparator latch is disabled
INC (Pin 5):
This is the inverting input of the comparator. and the comparator functions transparently. The other comparator input is internally connected to the 400mV reference. 6118f 8 For more information www.linear.com/LT6118 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Typical Application Related Parts
Typical perForMance characTerisTics Performance characteristics taken at TA = 25°C, V+ = 12V, VPULLUP = V+, VLE = 2.7V, RIN = 100Ω, ROUT = R1 + R2 = 10k, gain = 100, RC = 25.5k, CL = CLC = 2pF, unless otherwise noted. (See Figure 2) Comparator Rise/Fall Time Comparator Step Response Comparator Step Response vs Pull-Up Resistor (5mV INC Overdrive) (100mV INC Overdrive)
10000 VOH = 0.9 • VPULLUP V+ = 5V V+ = 5V V V VINC OL = 0.1 • VPULLUP INC 100mV INC OVERDRIVE 0.5V/DIV 0.5V/DIV C 0V 0V L = 2pF 1000 FALLING INPUT V V OUTC OUTC 2V/DIV 2V/DIV ALL TIME (ns) 0V 0V RISE/F 100 RISING INPUT VLE VLE 5V/DIV 5V/DIV 0V 0V 10 1 10 100 1000 5µs/DIV 5µs/DIV RC PULL-UP RESISTOR (kΩ) 6118 G31 6118 G32 6118 G30
Comparator Step Response Comparator Step Response (5mV INC Overdrive) (100mV INC Overdrive) Comparator Reset Response
VINC VINC 0.5V/DIV 0.5V/DIV 0V 0V VOUTC 5V/DIV 0V VOUTC VOUTC 1V/DIV 1V/DIV VLE 0V 0V 2V/DIV V+ = 5V V+ = 5V 0V VLE = 0V VLE = 0V 5µs/DIV 5µs/DIV 5µs/DIV 6118 G33 6118 G34 6118 G35
pin FuncTions SENSELO (Pin 1):
Sense Amplifier Input. This pin must
OUTC (Pin 3):
Open-Drain Comparator Output. Off-state be tied to the load end of the sense resistor. voltage may be as high as 60V above V–, regardless of
LE (Pin 2):
Latch Control Pin. When high, the comparator V+ used. latch is enabled. With the comparator latch enabled, the
V– (Pin 4):
Negative Supply Pin. This pin is normally con- comparator output will latch at a low level once tripped. nected to ground. When the LE input is low, the comparator latch is disabled
INC (Pin 5):
This is the inverting input of the comparator. and the comparator functions transparently. The other comparator input is internally connected to the 400mV reference. 6118f 8 For more information www.linear.com/LT6118 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Typical Application Related Parts