4
LTC2602/LTC2612/LTC2622
2602fa
TYPICAL PERFOR A CE CHARACTERISTICS
UW
(LTC2602)
Integral Nonlinearity (INL) Differential Nonlinearity (DNL) INL vs Temperature
CODE
0
16384 32768 49152 65535
INL (LSB)
2602 G20
32
24
16
8
0
–8
–16
–24
–32
V
CC
= 5V
V
REF
= 4.096V
CODE
0 16384 32768 49152 65535
DNL (LSB)
2602 G21
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)
2602 G22
32
24
16
8
0
–8
–16
–24
–32
V
CC
= 5V
V
REF
= 4.096V
INL (POS)
INL (NEG)
TI I G CHARACTERISTICS
UW
The ● denotes specifications which apply over the full operating temperature
range, otherwise specifications are at T
A
= 25°C. (See Figure 1) (Note 6)
Note 1: Absolute maximum ratings are those values beyond which the life
of a device may be impaired.
Note 2: Linearity and monotonicity are defined 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 defined from code 256 to code 65,535.
Note 3: Digital inputs at 0V or V
CC
.
Note 4: DC crosstalk is measured with V
CC
= 5V and V
REF
= 4.096V, with
the measured DAC at midscale, unless otherwise noted.
Note 5: R
L
= 2kΩ to GND or V
CC
at the output of the DAC not being tested.
Note 6: Guaranteed by design and not production tested.
Note 7: Inferred from measurement at code 256 (LTC2602), code 64
(LTC2612) or code 16 (LTC2622), and at fullscale.
Note 8: V
CC
= 5V, V
REF
= 4.096V. DAC is stepped 1/4 scale to 3/4 scale
and 3/4 scate to 1/4 scale. Load is 2k in parallel with 200pF to GND.
Note 9: V
CC
= 5V, V
REF
= 4.096V. DAC is stepped ±LBS between half scale
and half scale –1. Load is 2k in parallel with 200pF to GND.
LTC2602/LTC2612/LTC2622
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
CC
= 2.5V to 5.5V
t
1
SDI Valid to SCK Setup ● 4ns
t
2
SDI Valid to SCK Hold ● 4ns
t
3
SCK High Time ● 9ns
t
4
SCK Low Time ● 9ns
t
5
CS/LD Pulse Width ● 10 ns
t
6
LSB SCK High to CS/LD High ● 7ns
t
7
CS/LD Low to SCK High ● 7ns
t
10
CS/LD High to SCK Positive Edge ● 7ns
SCK Frequency 50% Duty Cycle ● 50 MHz
