Datasheet

7
LTC1091/LTC1092
LTC1093/LTC1094
CCHARA TERIST
ICS
UW
AT
Y
P
I
CA
LPER
F
O
R
C
E
LTC1092/LTC1093/LTC1094
Unadjusted Offset Error vs
Reference Voltage
LTC1092/LTC1093/LTC1094
Linearity Error vs
Reference Voltage
REFERENCE VOLTAGE (V)
0
LINEARITY ERROR (LSB = • V
REF
)
1.25
1.00
0.75
0.50
0.25
0
4
1092/2/3/4 G20
1
2
3
5
1
1024
V
CC
= 5V
REFERENCE VOLTAGE (V)
0
CHANGE IN FULL-SCALE ERROR (LSB = • V
REF
)
1.25
1.00
0.75
0.50
0.25
0
4
1092/2/3/4 G21
1
2
3
5
1
1024
V
CC
= 5V
REFERENCE VOLTAGE (V)
0.1 0.2 1 5 10
1091/2/3/4 G19
10
9
8
7
6
5
4
3
2
1
0
V
CC
= 5V
V
OS
= 1mV
V
OS
= 0.5mV
OFFSET ERROR (LSB = • V
REF
)
1
1024
LTC1092/LTC1093/LTC1094
Change in Full-Scale Error vs
Reference Voltage
SUPPLY VOLTAGE (V)
4
OFFSET ERROR (LSB)
1.25
1.00
0.75
0.50
0.25
0
5
678
1091/2/3/4 G23
910
V
REF
= 4V
f
CLK
= 500kHz
V
OS
= 1.25mV AT V
CC
= 5V
REFERENCE VOLTAGE (V)
0.1 0.2 1 5 10
1091/2/3/4 G22
2.00
1.75
1.50
1.25
1.00
0.75
0.50
0.25
0
NOISE = 200µV
P-P
PEAK-TO-PEAK NOISE ERROR (LSB)
SUPPLY VOLTAGE (V)
4
LINEARITY ERROR (LSB)
1.25
1.00
0.75
0.50
0.25
0
5
678
1091/2/3/4 G24
910
V
REF
= 4V
f
CLK
= 500kHz
LTC1092/LTC1093/LTC1094
Linearity Error vs Supply Voltage
LTC1092/LTC1093/LTC1094
Offset Error vs Supply Voltage
LTC1092/LTC1093/LTC1094
Noise Error vs Reference Voltage
LTC1092/LTC1093/LTC1094
Change in Full-Scale Error vs
Supply Voltage
SUPPLY VOLTAGE (V)
4
CHANGE IN FULL-SCALE ERROR (LSB)
0.50
0.25
0
–0.25
–0.50
–0.75
5
678
1091/2/3/4 G25
910
V
REF
= 4V
f
CLK
= 500kHz
SUPPLY VOLTAGE (V)
4
5
678
1091/2/3/4 G26
910
SUPPLY CURRENT (mA)
6
5
4
3
2
1
0
V
REF
OPEN
f
CLK
= 500kHz
CS = V
CC
T
A
= 25°C
AMBIENT TEMPERATURE (°C)
–50
SUPPLY CURRENT (mA)
1.4
1.2
1.0
0.8
0.6
0.4
0.2
50
1091/2/3/4 G27
–25
0
25
75
125100
V
REF
OPEN
f
CLK
= 500kHz
CS = 5V
V
CC
= 5V
LTC1092/LTC1093/LTC1094
Supply Current vs Supply Voltage
LTC1092/LTC1093/LTC1094
Supply Current vs Temperature