 English |
|
|
|
|
|
|
|
| LTC1040_09 Datasheet, PDF (3/12 Pages) Linear Technology – Dual Micropower Comparator | |||
| |||
| ◁ |
LTC1040
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range otherwise specifications are at TA = 25°C. Test conditions: V+ = 5V, V â = â 5V, unless otherwise specified
SYMBOL
VIH
VIL
REXT
fS
PARAMETER
STROBE Input (Note 7)
Logic â1â Input Voltage
Logic â0â Input Voltage
External Timing Resistor
Sampling Frequency
CONDITIONS
V+ = 5.25V
V+ = 4.75V
Resistor Tied Between V+ and OSC Pin
REXT = 1M, CEXT = 0.1µF
LTC1040M/LTC1040C
MIN
TYP
MAX
UNITS
q
2.0
q
100
1.6
V
1.0
0.8
V
10,000
kâ¦
5
Hz
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: Applies over input voltage range limit and includes gain
uncertainty.
Note 3: Tracking error = (VIN1 â VIN2)/ VIN1.
Note 4: RIN is guaranteed by design and is not tested.
RIN = 1/(fS ⢠33pF).
Note 5: Average supply current = tD ⢠lS(ON) ⢠fS + (1 â tD x fS) ⢠lS(OFF).
Note 6: Response time is set by an internal oscillator and is independent
of overdrive voltage.
Note 7: Inputs and outputs also capable of meeting EIA/JEDEC B series
CMOS specifications.
TYPICAL PERFOR A CE CHARACTERISTICS
Peak Supply Current
vs Supply Voltage
20
18
16
14
12
25°C
10
â55°C
8
6
4
125°C
2
0
2 4 6 8 10 12 14 16
SUPPLY VOLTAGE, V+ (V)
LTC1040 ⢠TPC01
Response Time
vs Supply Voltage
300
TA = 25°C
250
200
150
100
50
0
2 4 6 8 10 12 14 16
SUPPLY VOLTAGE, V+ (V)
LTL1040 ⢠TPC04
Normalized Sampling Frequency
vs Supply Voltage and Temperature
2.2
R = 1M
2.0
C = 0.1µF
1.8
TA = 125°C
1.6
1.4
1.2
1.0 TA = 25°C
0.8
TA = â 55°C
0.6
0 2 4 6 8 10 12 14 16
SUPPLY VOLTAGE, V+ (V)
LTC1040 ⢠TPC02
Input Resistance
vs Sampling Frequency
1011
1010
109
108
107
1
10
102
103
104
SAMPLING FREQUENCY, fS (Hz)
LTC1040 ⢠TPC05
Sampling Rate vs REXT, CEXT
103
CEXT = 1000pF
102
CEXT = 0.01µF
CEXT = 0.05µF
10
CEXT = 0.1µF
1
CEXT = 1µF
0.1
100k
1M
REXT (â¦)
10M
LT1040 ⢠TPC03
VP-P Output Voltage
vs Load Current
0
0.2
0.4
0.6
0.8
1.0 V+ = 2.8V
1.2
V+ = 10V
V+ = 16V
1.4
V+ = 5V
1.6
1.8
2.0
0 1 2 3 4 5 6 7 8 9 10
LOAD CURRENT, IL (mA)
LTC1040 ⢠TPC06
1040fa
3
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese