Datasheet

LTC2657
10
2657f
TYPICAL PERFORMANCE CHARACTERISTICS
TEMPERATURE (°C)
–50
V
REFIN/OUT
(V)
1.251
1.250
1.249
1.248
1.247
1.252
–10
30
50 130
2657 G05
–30 10
70
90
110
1.253
V
CC
= 3V
DNL vs Temperature
REFIN/OUT Output Voltage
vs Temperature
Settling to ±1LSB Rising Settling to ±1LSB Falling
Integral Nonlinearity (INL) Differential Nonlinearity (DNL) INL vs Temperature
LTC2657-L16, T
A
= 25°C unless otherwise noted.
CODE
128
–4
INL (LSB)
3
2
1
0
–1
–2
–3
4
16384 6553532768
2657 G01
49152
V
CC
= 3V
CODE
128
–1
DNL (LSB)
0.5
0
–0.5
1
16384 6553532768
2657 G02
49152
V
CC
= 3V
TEMPERATURE (°C)
–50
–4
INL (LSB)
3
2
1
0
–1
–2
–3
4
–30 70 90 110 130–10 10 30
2657 G03
50
V
CC
= 3V
INL (POS)
INL (NEG)
TEMPERATURE (°C)
–50
–1
DNL (LSB)
0.5
0
–0.5
1
–30 70 90 110 130–10 10 30
3586 G35
50
DNL (POS)
V
CC
= 3V
DNL (NEG)
2µs/DIV
SCL
3V/DIV
V
OUT
150µV/DIV
2657 G07
1/4 SCALE TO 3/4
SCALE STEP
V
CC
= 3V, V
FS
= 2.5V
R
L
= 2k, C
L
= 200pF
AVERAGE OF 2048
EVENTS
9TH CLOCK OF
3RD DATA BYTE
9µs
2µs/DIV
SCL
3V/DIV
V
OUT
100µV/DIV
2657 G08
8.6µs
9TH CLOCK OF
3RD DATA BYTE
3/4 SCALE TO 1/4 SCALE STEP
V
CC
= 3V, V
FS
= 2.5V
R
L
= 2k, C
L
= 200pF
AVERAGE OF 2048 EVENTS