LTC2640
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted.
LTC2640-L12 (Internal Reference, VFS = 2.5V)
Reference Output Voltage
vs Temperature
Integral Nonlinearity (INL)
Differential Nonlinearity (DNL)
1.260
1.255
1.250
1.245
1.240
1.0
0.5
1.0
0.5
V
= 3V
V
= 3V
V
= 3V
CC
CC
CC
0
0
–0.5
–1.0
–0.5
–1.0
50
100
125 150
–50 –25
25
75
2048
3072
2048
3072
0
0
4095
0
4095
1024
1024
TEMPERATURE (°C)
CODE
CODE
2640 G03
2640 G01
2640 G02
Full-Scale Output Voltage
vs Temperature
INL vs Temperature
DNL vs Temperature
1.0
0.5
1.0
0.5
2.52
2.51
2.50
2.49
2.48
V
= 3V
V
= 3V
V
= 3V
CC
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
100
125 150
–50 –25
25
75
125 150
–50 –25
25
75
125 150
–50 –25
25
75
0
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
2640 G04
2640 G05
2640 G06
Settling to 1LSB
Settling to 1LSB
3/4 SCALE TO 1/4 SCALE STEP
= 3V, V = 2.5V
V
CC
L
FS
R
= 2k, C = 100pF
L
AVERAGE OF 256 EVENTS
CS/LD
2V/DIV
V
OUT
1LSB/DIV
4.1µs
3.6µs
V
OUT
1LSB/DIV
1/4 SCALE TO 3/4 SCALE STEP
= 3V, V = 2.5V
V
CC
FS
CS/LD
2V/DIV
R
= 2k, C = 100pF
L
L
AVERAGE OF 256 EVENTS
2µs/DIV
2µs/DIV
2640 G08
2640 G07
2640fd
10
For more information www.linear.com/LTC2640
Linear [ Linear ]
