LTC1289BIJ Просмотр технического описания (PDF) - Linear Technology
Номер в каталоге
Компоненты Описание
производитель
LTC1289BIJ Datasheet PDF : 28 Pages
| |||
LTC1289
TYPICAL PERFOR A CE CHARACTERISTICS
Maximum Filter Resistor vs
Cycle Time
10k
1k
100
RFILTER
VIN
+
10
CFILTER ≥ 1µF
–
1
10
100
1000
10000
CYCLE TIME (µs)
LTC1289 TPC10
Supply Current (Power Shutdown)
vs ACLK
18
VCC = 3V
16 CMOS LOGIC SWINGS
14
12
10
8
6
4
200
400
600
800
ACLK FREQUENCY (kHZ)
1000
LTC1298 TPC13
tsuCS vs Supply Voltage
300
TA = 25°C
250
200
150
100
50
0
2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6
SUPPLY VOLTAGE (V)
LTC1289 TPC16
Sample and Hold Acquisition
Time vs Source Resistance
100
VREF = 2.5V
VCC = 3V
TA = 25°C
0V TO 2.5V INPUT STEP
+ RSOURCE+
VIN
10
–
1
100
1k
RSOURCE+ (Ω)
10k
LTC1289 TPC11
Input Channel Leakage Current
vs Temperature
1000
900
GUARANTEED
800
700
600
500
400
300
200
ON CHANNEL
100
OFF CHANNEL
0
–50 –30 –10 10 30 50 70 90 110 130
AMBIENT TEMPERATURE (°C)
LTC1289 • TPC14
Power Consumption with Power
Shutdown vs fSAMPLE
10000
VCC = 3V
VREF = 2.5V
ACLK = 2MHz
1000 CMOS LOGIC SWINGS
THREE CONVERSIONS/CYCLE
100
10
1
1
10
100
1000 10000
fSAMPLE (Hz)
LTC1289 TPC17
6
Supply Current (Power Shutdown)
vs Temperature
2.0
1.8
ACLK OFF DURING
POWER SHUTDOWN
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
–60 –40 –20 0 20 40 60 80 100
AMBIENT TEMPERATURE (°C)
LTC1289 TPC12
Noise Error vs Reference Voltage
1.0
LTC1289 NOISE = 200µVp-p
0.8
0.6
0.4
0.2
0
0 0.5 1.0 1.5 2.0 2.5 3.0
REFERENCE VOLTAGE (V)
LTC1289 • TPC15
** MAXIMUM RFILTER REPRESENTS THE FILTER
RESISTOR VALUE AT WHICH A 0.1LSB CHANGE
IN FULL SCALE ERROR FROM ITS VALUE AT RFILTER
= 0 IS FIRST DETECTED.
Share Link: 