LTC1290BI LINER [Linear Technology], LTC1290BI Datasheet - Page 5

• Manufacturer Part Number: LTC1290BI
• Description: Single Chip 12-Bit Data Acquisition System
• Manufacturer: LINER [Linear Technology]

TYPICAL PERFOR
1.25
1.00
0.75
0.50
0.25
0
0
Change in Linearity vs Reference
Voltage
V
CC
* MAXIMUM ACLK FREQUENCY REPRESENTS THE ACLK
= 5V
REFERENCE VOLTAGE, V
FREQUENCY AT WHICH A 0.1LSB SHIFT IN THE ERROR AT
ANY CODE TRANSITION FROM ITS 4MHz VALUE IS FIRST DETECTED.
1
0.6
0.4
0.3
0.2
0.5
0.1
0
5
4
3
2
1
0
100
–50
Change in Linearity Error vs
Temperature
Maximum ACLK Frequency vs
Source Resistance
ACLK = 4MHz
V
V
2
–30
CC
REF
AMBIENT TEMPERATURE, T
= 5V
= 5V
–10
3
10
1k
W
R
REF
SOURCE
30
(V)
A
4
1290 • TPC04
50
U
V
( )
R
IN
SOURCE –
CE
10 k
70
5
V
V
T
CC
REF
A
A
= 25 C
90 110
= 5V
+
–
( C)
= 5V
C
INPUT
INPUT
1290 • TPC07
1290 • TPC09
HARA TERISTICS
–0.1
–0.3
–0.5
–0.2
–0.4
100k
130
0
1
Change in Gain vs Reference
Voltage
V
CC
C
= 5V
REFERENCE VOLTAGE, V
2
3
REF
** MAXIMUM R
4
(V)
AT WHICH A 0.1LSB CHANGE IN FULL-SCALE ERROR FROM
ITS VALUE AT R
100
10k
1.0
0.5
0.4
0.3
0.2
0.1
1290 • TPC05
1k
10
0
–50
10
Change in Gain Error vs
Temperature
Maximum Filter Resistor vs
Cycle Time
ACLK = 4MHz
V
V
5
–30
CC
REF
AMBIENT TEMPERATURE, T
= 5V
FILTER
= 5V
–10
FILTER
CYCLE TIME, t
0.5
0.4
0.3
0.2
0.1
REPRESENTS THE FILTER RESISTOR VALUE
10
100
0
–50
Change in Offset vs Temperature
= 0 IS FIRST DETECTED.
V
C
30
IN
ACLK = 4MHz
V
V
FILTER
–30
CC
REF
R
FILTER
AMBIENT TEMPERATURE, T
= 5V
50
= 5V
–10
CYC
1 F
1000
70
( s)
10
A
90 110
( C)
30
1290 • TPC08
1290 • TPC10
+
–
LTC1290
50
10000
130
70
A
90 110
( C)
1290 • TPC06
5
130