LTC1293_15 Datasheet, PDF (5/28 Pages) Linear Technology – Single Chip 12-Bit Data Acquisition System

LTC1293/LTC1294/LTC1296
TYPICAL PERFOR A CE CHARACTERISTICS
Supply Current vs Supply Voltage
10
CLK = 1MHz
T_A = 25°C
8
6
4
2
0
4
5
6
SUPPLY VOLTAGE (V)
LTC1293 G01
Change in Linearity vs Reference
Voltage
1.25
1.00
0.75
0.50
0.25
0
0
1
2
3
4
5
REFERENCE VOLTAGE (V)
LTC1293 G04
Change in Linearity vs
Temperature
0.5
V_CC = 5V
V_REF = 5V
0.4 ^{CLK = 1MHz}
0.3
0.2
0.1
Supply Current vs Temperature
10
CLK = 1MHz
9
V_CC = 5V
8
7
6
5
4
3
–50 –30 –10 10 30 50 70 90 110 130
AMBIENT TEMPERATURE (°C)
LTC1293 G02
Change in Gain vs Reference
Voltage
0
V_CC = 5V
–0.2
–0.4
LTC1294/6
–0.6
–0.8
–1.0
–1.2
0
LTC1293
1
2
3
4
5
REFERENCE VOLTAGE (V)
LTC1293 G05
Change in Gain vs Temperature
0.5
V_CC = 5V
V_REF = 5V
0.4 ^{CLK = 1MHz}
0.3
0.2
0.1
Unadjusted Offset Voltage vs
Reference Voltage
0.9
V_CC = 5V
0.8
0.7
0.6
0.5
0.4
V_OS = 0.250mV
0.3
0.2
0.1
1
V_OS = 0.125mV
2
3
4
5
REFERENCE VOLTAGE (V)
LTC1293 G03
Change in Offset vs Temperature
0.5
V_CC = 5V
V_REF = 5V
0.4 ^{CLK = 1MHz}
0.3
0.2
0.1
0
–50 –25 0 25 50 75 100 125
AMBIENT TEMPERATURE (°C)
LTC1293 G06
Minimum Clock Rate for 0.1LSB
Error
V_CC = 5V
0.25
0.20
0.15
0.10
0.05
0
–50 –25 0 25 50 75 100 125
AMBIENT TEMPERATURE (°C)
LTC1293 G07
0
–50 –25 0 25 50 75 100 125
AMBIENT TEMPERATURE (°C)
LTC1293 G08
–50 –25 0 25 50 75 100 125
AMBIENT TEMPERATURE (°C)
LTC1293 G09
* AS THE CLK FREQUENCY IS DECREASED FROM 1MHz, MINIMUM CLK FREQUENCY (∆ERROR ≤ 0.1LSB) REPRESENTS
THE FREQUENCY AT WHICH A 0.1LSB SHIFT IN ANY CODE TRANSITION FROM ITS 1MHz VALUE IS FIRST DETECTED.
129346fs
5