Datasheet

6
LTC2601/LTC2611/LTC2621
2601fa
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Integral Nonlinearity (INL) Differential Nonlinearity (DNL)
LTC2621
LTC2611
Integral Nonlinearity (INL) Differential Nonlinearity (DNL)
Settling to ±1LSB
Settling to ±1LSB
LTC2601/LTC2611/LTC2621
Current Limiting
Load Regulation Offset Error vs Temperature
CODE
0
4096 8192 12288 16383
INL (LSB)
2601 G09
8
6
4
2
0
–2
–4
–6
–8
V
CC
= 5V
V
REF
= 4.096V
CODE
0 4096 8192 12288 16383
DNL (LSB)
2601 G10
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
V
CC
= 5V
V
REF
= 4.096V
2µs/DIV
2601 G11
V
OUT
100µV/DIV
CS/LD
2V/DIV
V
CC
= 5V, V
REF
= 4.096V
1/4-SCALE TO 3/4-SCALE STEP
R
L
= 2k, C
L
= 200pF
AVERAGE OF 2048 EVENTS
8.9µs
CODE
0
1024 2048 3072 4095
INL (LSB)
2601 G12
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
V
CC
= 5V
V
REF
= 4.096V
CODE
0 1024 2048 3072 4095
DNL (LSB)
2601 G13
V
CC
= 5V
V
REF
= 4.096V
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
2µs/DIV
2601 G14
V
OUT
1mV/DIV
CS/LD
2V/DIV
V
CC
= 5V, V
REF
= 4.096V
1/4-SCALE TO 3/4-SCALE STEP
R
L
= 2k, C
L
= 200pF
AVERAGE OF 2048 EVENTS
6.8µs
I
OUT
(mA)
–40
–30 –20 –10 0 10 20 30 40
∆V
OUT
(V)
2601 G17
0.10
0.08
0.06
0.04
0.02
0
–0.02
–0.04
–0.06
–0.08
–0.10
V
REF
= V
CC
= 5V
V
REF
= V
CC
= 3V
V
REF
= V
CC
= 5V
V
REF
= V
CC
= 3V
CODE = MIDSCALE
I
OUT
(mA)
–35 –25 –15 –5 5 15 25 35
∆V
OUT
(mV)
2601 G18
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
V
REF
= V
CC
= 5V
CODE = MIDSCALE
V
REF
= V
CC
= 3V
TEMPERATURE (°C)
–50
–30 –10 10 30 50 70 90
OFFSET ERROR (mV)
2601 G19
3
2
1
0
–1
–2
–3