LTC1289 Linear Technology, LTC1289 Datasheet - Page 5

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

TYPICAL PERFOR
0.5
0.1
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
0.8
0.4
0.3
0.2
1.0
0.5
0.4
0.3
0.2
0.1
0
0
–60
2.7
0
Supply Current vs Supply Voltage
Change in Linearity vs Reference
Voltage
Change in Linearity vs
Temperature
V
ACLK = 2MHz
T
V
V
ACLK = 2MHz
CC
A
2.8
CC
REF
–40 –20
= 25°C
0.5
= 3V
= 3V
= 2.5V
2.9
AMBIENT TEMPERATURE (°C)
REFERENCE VOLTAGE (V)
SUPPLY VOLTAGE (V)
1.0
3.0
0
3.1 3.2
1.5
20
40
3.3 3.4 3.5
2.0
60
W
LTC1289 TPC01
LTC1289 TPC07
LTC1289 TPC04
2.5
80
A
U
100
3.6
3.0
CE
C
–0.15
–0.05
–0.10
–0.20
–0.25
0.25
0.20
HARA TERISTICS
0.15
0.10
0.05
1.6
1.9
1.8
1.7
1.5
1.4
1.3
0.5
0.4
0.2
0.3
0.1
0
0
–40
–60
0
Supply Current vs Temperature
Change in Gain vs Reference
Voltage
Change in Gain vs Temperature
V
V
V
ACLK = 2MHz
–25 –10
CC
CC
REF
–40 –20
0.5
= 3V
= 3V
= 2.5V
AMBIENT TEMPERATURE (°C)
C
REFERENCE VOLTAGE (V)
TEMPERATURE (°C)
1.0
5
0
20
* MAXIMUM ACLK FREQUENCY REPRESENTS THE ACLK FREQUENCY AT WHICH A 0.1LSB SHIFT
1.5
IN THE ERROR AT ANY CODE TRANSITION FROM ITS 2MHZ VALUE IS FIRST DETECTED.
20
35
40
2.0
50
ACLK = 2MHz
V
CC
60
65
= 3V
LTC 1289 • TPC02
LTC1289 TPC08
2.5
LTC1289 TPC05
80
80
100
3.0
95
0.9
0.7
0.6
0.5
0.4
0.2
0.8
0.3
0.1
0.5
0.4
0.2
0.3
0.1
0
3
2
1
0
0
100
–60
0
Unadjusted Offset Voltage vs
Reference Voltage
Change in Offset vs Temperature
Maximum ACLK Frequency vs
Source Resistance
V
V
V
ACLK = 2MHz
V
V
T
CC
CC
REF
A
CC
REF
–40 –20
= 25°C
= 3V
0.5
= 3V
= 3V
= 2.5V
= 2.5V
AMBIENT TEMPERATURE (°C)
REFERENCE VOLTAGE (V)
1.0
1k
R
0
SOURCE
1.5
20
LTC1289
V
V
V
( )
R
IN
OS
OS
SOURCE –
40
2.0
10 k
= 0.250mV
= 0.125mV
60
LTC1289 • TPC06
LTC1289 TPC03
+
–
LTC1289 TPC09
2.5
INPUT
INPUT
80
5
100k
100
3.0