LTC2640
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted.
LTC2640-H12 (Internal Reference, VFS = 4.096V)
Reference Output Voltage
vs Temperature
Integral Nonlinearity (INL)
Differential Nonlinearity (DNL)
1.0
1.0
0.5
2.068
2.058
2.048
2.038
2.028
V
= 5V
V
= 5V
CC
V
= 5V
CC
CC
0.5
0
0
–0.5
–1.0
–0.5
–1.0
2048
3072
2048
3072
50
100
125 150
0
4095
0
4095
–50 –25
25
75
1024
1024
0
CODE
CODE
TEMPERATURE (°C)
2640 G09
2640 G10
2640 G11
Full-Scale Output Voltage
vs Temperature
INL vs Temperature
DNL vs Temperature
1.0
0.5
1.0
0.5
4.115
4.105
4.095
4.085
4.075
V
= 5V
V
= 5V
V
CC
= 5V
CC
CC
INL (POS)
DNL (POS)
DNL (NEG)
0
0
INL (NEG)
–0.5
–0.5
–1.0
–1.0
50
100
50
100
50
–50 –25
25
75
125 150
–50 –25
25
75
125 150
–50 –25
25
75 100 125 150
0
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
2640 G12
2640 G13
2640 G14
Settling to 1LSB
Settling to 1LSB
CS/LD
5V/DIV
V
OUT
1LSB/DIV
4.6µs
3.9µs
V
OUT
1LSB/DIV
1/4 SCALE TO 3/4 SCALE STEP
= 5V, V = 4.095V
3/4 SCALE TO 1/4 SCALE STEP
V
CC
FS
V
= 5V, V = 4.095V
CS/LD
5V/DIV
CC
FS
R
= 2k, C = 100pF
L
L
R
L
= 2k, C = 100pF
L
AVERAGE OF 256 EVENTS
AVERAGE OF 256 EVENTS
2µs/DIV
2µs/DIV
2640 G16
2640 G15
2640fd
11
For more information www.linear.com/LTC2640
Linear [ Linear ]
