LTC2630
ELECTRICAL CHARACTERISTICS The
●
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T = 25°C. V = 4.5V to 5.5V, V unloaded unless otherwise specified.
A
CC
OUT
LTC2630-HM12/-HM10/-HM8/-HZ12/-HZ10/-HZ8, LTC2630A-HM12/-HZ12 (V = 4.096V)
FS
SYMBOL PARAMETER
AC Performance
CONDITIONS
MIN
TYP
MAX
UNITS
t
S
Settling Time
V
= 5V (Note 7)
CC
μs
μs
μs
0.39% ( 1LSB at 8 Bits)
0.098% ( 1LSB at 10 Bits)
0.024% ( 1LSB at 12 Bits)
3.7
4.4
4.8
Voltage Output Slew Rate
Capacitive Load Driving
Glitch Impulse
1.0
500
2.4
V/μs
pF
At Midscale Transition
nV•s
e
Output Voltage Noise Density
At f = 1kHz, Supply as Reference
At f = 10kHz, Supply as Reference
At f = 1kHz, Internal Reference
At f = 10kHz, Internal Reference
140
130
210
200
nV/√Hz
nV/√Hz
nV/√Hz
nV/√Hz
n
Output Voltage Noise
0.1Hz to 10Hz, Supply as Reference
0.1Hz to 10Hz, Internal Reference
0.1Hz to 200kHz, Supply as Reference
0.1Hz to 200kHz, Internal Reference
20
20
650
750
μV
P-P
μV
P-P
μV
P-P
μV
P-P
TIMING CHARACTERISTICS The
●
denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at T = 25°C. V = 4.5V to 5.5V. (See Figure 1) (Note 6).
A
CC
LTC2630-HM12/-HM10/-HM8/-HZ12/-HZ10/-HZ8, LTC2630A-HM12/-HZ12 (V = 4.096V)
FS
SYMBOL PARAMETER
CONDITIONS
MIN
4
TYP
MAX
UNITS
ns
●
●
●
●
●
●
●
●
●
t
t
t
t
t
t
t
t
SDI Valid to SCK Setup
SDI Valid to SCK Hold
SCK High Time
1
4
ns
2
9
ns
3
SCK Low Time
9
ns
4
CS/LD Pulse width
10
7
ns
5
SCK High to CS/LD High
CS/LD Low to SCK High
CS/LD High to SCK Positive Edge
SCK Frequency
ns
6
7
ns
7
7
ns
10
50% Duty Cycle
50
MHz
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 4: This IC includes current limiting that is intended to protect the
device during momentary overload conditions. Junction temperature can
exceed the rated maximum during current limiting. Continuous operation
above the specified maximum operating junction temperature may impair
device reliability.
N
Note 2: Linearity and monotonicity are defined from code k to code 2 –1,
L
N
where N is the resolution and k is given by k = 0.016 • (2 / V ), rounded
Note 5: Digital inputs at 0V or V .
L
L
FS
CC
to the nearest whole code. For V = 2.5V and N = 12, k = 26 and linearity
FS
L
Note 6: Guaranteed by design and not production tested.
Note 7: Internal Reference mode. DAC is stepped 1/4 scale to 3/4 scale
and 3/4 scale to 1/4 scale. Load is 2kΩ in parallel with 100pF to GND.
Note 8: Temperature coefficient is calculated by dividing the maximum
change in output voltage by the specified temperature range.
is defined from code 26 to code 4,095. For V = 4.096V and
FS
N = 12, k = 16 and linearity is defined from code 16 to code 4,095.
L
Note 3: Inferred from measurement at code 16 (LTC2630-12), code 4
(LTC2630-10) or code 1 (LTC2630-8).
2630f
7
Linear [ Linear ]
