LT6108-1/LT6108-2
9
610812fa
Comparator Rise/Fall Time
vs Pull-Up Resistor
LT6108-1 Comparator Step
Response (5mV INC Overdrive)
LT6108-1 Comparator Step
Response (100mV INC Overdrive)
Comparator Propagation Delay
vs Input Overdrive
Comparator Output Leakage
Current vs Pull-Up Voltage
TYPICAL PERFORMANCE CHARACTERISTICS
Performance characteristics taken at T
A
= 25°C,
V
+
= 12V, V
PULLUP
= V
+
, V
EN
= V
EN/RST
= 2.7V, R
IN
= 100Ω, R
OUT
= R1 + R2 = 10k, gain = 100, R
C
= 25.5k, C
L
= C
LC
= 2pF, unless
otherwise noted. (See Figure 3)
Comparator Output Low Voltage
vs Output Sink Current
Comparator Input Bias Current
vs Input Voltage
COMPARATOR INPUT VOLTAGE (V)
–20
COMPARATOR INPUT BIAS CURRENT (nA)
–10
0
–15
–5
5
0.2 0.4 0.6 0.8
610812 G28
1.00
125°C
25°C
–40°C
I
OUTC
(mA)
0
0
OL
0.25
0.50
0.75
1 2
610812 G29
3
125°C
25°C
–40°C
COMPARATOR OUTPUT PULL-UP VOLTAGE (V)
0
–2
OUTC LEAKAGE CURRENT (nA)
3
8
13
18
125°C
10
20 30 40
610812 G30
50 60
–40°C AND 25°C
COMPARATOR INPUT OVERDRIVE (mV)
0
COMPARATOR PROPAGATION DELAY (µs)
3.0
4.0
5.0
160
610812 G31
2.0
1.0
2.5
3.5
4.5
1.5
0.5
0
40
80
120
200
RISING INPUT
LT6108-1 AND LT6108-2
FALLING INPUT
LT6108-2
R
C
PULL-UP RESISTOR (kΩ)
1
10
100
1000
10000
10 100 1000
610812 G32
V
OH
= 0.9 • V
PULLUP
V
OL
= 0.1 • V
PULLUP
100mV INC OVERDRIVE
C
L
= 2pF
FALLING
INPUT
LT6108-2
RISING INPUT
LT6108-1 AND
LT6108-2
V
INC
0.5V/DIV
0V
V
OUTC
2V/DIV
V
EN/RST
5V/DIV
0V
0V
5µs/DIV
V
+
= 5V
0V
V
INC
0.5V/DIV
V
OUTC
2V/DIV
V
EN/RST
5V/DIV
0V
0V
610812 G34
5µs/DIV
V
+
= 5V
Comparator Input Bias Current
vs Input Voltage
COMPARATOR INPUT VOLTAGE (V)
–20
COMPARATOR INPUT BIAS CURRENT (nA)
–10
0
–15
–5
5
20 40
610812 G27
600
125°C
25°C
–40°C