LTC1289 Linear Technology, LTC1289 Datasheet - Page 6

• Manufacturer Part Number: LTC1289
• Description: 3 Volt Single Chip 12-Bit Data Acquisition System
• Manufacturer: Linear Technology

LTC1289
TYPICAL PERFOR
6
100
300
250
200
150
100
10k
50
1k
10
18
16
12
10
14
1
0
4
8
6
2.7
200
10
Maximum Filter Resistor vs
Cycle Time
Supply Current (Power Shutdown)
vs ACLK
t
suCS
V
CMOS LOGIC SWINGS
T
CC
A
2.8 2.9
= 25°C
= 3V
vs Supply Voltage
400
ACLK FREQUENCY (kHZ)
SUPPLY VOLTAGE (V)
100
3.0 3.1 3.2
CYCLE TIME ( s)
V
C
IN
FILTER
600
R
FILTER
≥ 1 F
1000
3.3
800
3.4
W
LTC1289 TPC10
LTC1289 TPC16
LTC1298 TPC13
3.5
+
–
A
10000
1000
U
3.6
CE
C
10000
1000
1000
600
HARA TERISTICS
900
800
700
500
400
300
200
100
100
100
10
10
0
1
1
100
–50
1
Input Channel Leakage Current
vs Temperature
Sample and Hold Acquisition
Time vs Source Resistance
Power Consumption with Power
Shutdown vs f
V
V
T
0V TO 2.5V INPUT STEP
V
V
ACLK = 2MHz
CMOS LOGIC SWINGS
THREE CONVERSIONS/CYCLE
V
–30
REF
CC
A
CC
REF
IN
= 25°C
= 3V
= 3V
R
= 2.5V
= 2.5V
SOURCE
–10
AMBIENT TEMPERATURE (°C)
C
10
10
+
+
–
R
f
SAMPLE
SOURCE
SAMPLE
30
100
1k
OFF CHANNEL
50
+ ( )
(Hz)
ON CHANNEL
GUARANTEED
70
1000
90 110
LTC1289 TPC17
LTC1289 • TPC14
LTC1289 TPC11
10000
130
10k
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
1.0
0.8
0.4
0.2
0.6
0
0
–60
0
Noise Error vs Reference Voltage
Supply Current (Power Shutdown)
vs Temperature
** MAXIMUM R
RESISTOR VALUE AT WHICH A 0.1LSB CHANGE
IN FULL SCALE ERROR FROM ITS VALUE AT R
= 0 IS FIRST DETECTED.
ACLK OFF DURING
POWER SHUTDOWN
LTC1289 NOISE = 200 V
–40
0.5
AMBIENT TEMPERATURE (°C)
–20
REFERENCE VOLTAGE (V)
1.0
FILTER
0
20
1.5
REPRESENTS THE FILTER
p-p
40
2.0
60
LTC1289 • TPC15
LTC1289 TPC12
2.5
80
FILTER
100
3.0