High-Speed, Low-Power Voltage Comparators
LATCH
ENABLE
INPUT
LATCH
COMPARE
LATCH
DIFFERENTAL
INPUT VOLTAGE
VIN
ts
th
VDD
COMPARE
1.4V
LATCH
tpw(D)
VOS
tpd-
tpd+ (D)
COMPARATOR
1.4V
OUTPUT
Figure 2. MAX900/MAX902/MAX903 Timing Diagram
OUTPUT
INPUT
5ns/div
Figure 3. tpd+ Response Time to 5mV Overdrive
+5V
0
VOS
+5mV
100mV
OUTPUT
INPUT
5ns/div
Figure 4. tpd- Response Time to 5mV Overdrive
+5V
0
100mV
VOS
+5mV
INPUT TO 10X
SCOPE PROBE
(10MΩ, 14pF)
1kΩ
PRECISION
STEP GENERATOR
VDC
OFFSET
ADJUST
10kΩ
100nF
100nF
VCC +5V
VDD +5V
100nF
10Ω
RL
2.43kΩ
D.U.T.
10Ω
OUTPUT TO 10X
SCOPE PROBE
(10MΩ, 14pF)
100nF
VEE -5V
Figure 5. Response-Time Setup
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