Datasheet

LTC2601/LTC2611/LTC2621
5
2601fb
TYPICAL PERFORMANCE CHARACTERISTICS
Integral Nonlinearity (INL) Differential Nonlinearity (DNL) INL vs Temperature
DNL vs Temperature INL vs V
REF
DNL vs V
REF
TIMING CHARACTERISTICS
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: Linearity and monotonicity are defi ned from code K
L
to code
2
N
– 1, where N is the resolution and K
L
is given by K
L
= 0.016(2
N
/V
REF
),
rounded to the nearest whole code. For V
REF
= 4.096V and N = 16, K
L
=
256 and linearity is defi ned from code 256 to code 65,535.
Note 3: Digital inputs at 0V or V
CC
.
Note 4: Guaranteed by design and not production tested.
Note 5: Inferred from measurement at code K
L
= 0.016(2
N
/V
REF
) and at
full scale.
Note 6: V
CC
= 5V, V
REF
= 4.096V. DAC is stepped 1/4 scale to 3/4 scale and
3/4 scale to 1/4 scale. Load is 2k in parallel with 200pF to GND.
Note 7: V
CC
= 5V, V
REF
= 4.096V. DAC is stepped ±1LSB between half scale
and half scale – 1. Load is 2k in parallel with 200pF to GND.
Note 8: These specifi cations apply to LTC2601/LTC2601-1,
LTC2611/LTC2611-1, LTC2621/LTC2621-1
LTC2601
CODE
0
16384 32768 49152 65535
INL (LSB)
2601 G01
32
24
16
8
0
–8
–16
–24
–32
V
CC
= 5V
V
REF
= 4.096V
CODE
0 16384 32768 49152 65535
DNL (LSB)
2600 G02
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
TEMPERATURE (°C)
–50
–30 –10 10 30 50 70 90
INL (LSB)
2601 G03
32
24
16
8
0
–8
–16
–24
–32
V
CC
= 5V
V
REF
= 4.096V
INL (POS)
INL (NEG)
TEMPERATURE (°C)
–50
–30 –10 10 30 50 70 90
DNL (LSB)
2601 G04
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
DNL (POS)
DNL (NEG)
V
REF
(V)
0
1 2 3 4 5
INL (LSB)
2601 G05
32
24
16
8
0
–8
–16
–24
–32
V
CC
= 5.5V
INL (POS)
INL (NEG)
V
REF
(V)
0
1 2 3 4 5
DNL (LSB)
2601 G06
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
V
CC
= 5.5V
DNL (POS)
DNL (NEG)