LTC2635
electrical characteristics The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 2.7V to 5.5V, VOUT unloaded unless otherwise specified.
LTC2635-LMI12/-LMI10/-LMI8/-LMX12/-LMX10/-LMX8/-LZ12/-LZ10/-LZ8/-LMO12/-LMO10/-LM08 (VFS = 2.5V)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
AC Performance
t
Settling Time
V
= 3V (Note 9)
S
CC
0.39% ( 1LSꢀ at 8 ꢀits)
0.098% ( 1LSꢀ at 10 ꢀits)
0.024% ( 1LSꢀ at 12 ꢀits)
3.5
4.1
4.4
µs
µs
µs
Voltage Output Slew Rate
Capacitive Load Driving
Glitch Impulse
1
V/µs
pF
500
2.1
2.6
320
At Mid-Scale Transition
nV • s
nV • s
kHz
DAC-to-DAC Crosstalk
Multiplying ꢀandwidth
Output Voltage Noise Density
1 DAC Held at FS, 1 DAC Switched 0 to FS
External Reference
e
n
At f = 1kHz, External Reference
At f = 10kHz, External Reference
At f = 1kHz, Internal Reference
At f = 10kHz, Internal Reference
180
160
200
180
nV/√Hz
nV/√Hz
nV/√Hz
nV/√Hz
Output Voltage Noise
0.1Hz to 10Hz, External Reference
0.1Hz to 10Hz, Internal Reference
0.1Hz to 200kHz, External Reference
0.1Hz to 200kHz, Internal Reference
35
40
680
730
µV
P-P
µV
P-P
µV
P-P
µV
P-P
C
= 0.1µF
REF
timing characteristics The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 2.7V to 5.5V. (See Figure 1) (Note 13)
LTC2635-LMI12/-LMI10/-LMI8/-LMX12/-LMX10/-LMX8/-LZ12/-LZ10/-LZ8/-LMO12/-LMO10/-LM08 (VFS = 2.5V)
SYMBOL
PARAMETER
CONDITIONS
MIN
0
TYP
MAX
UNITS
kHz
µs
l
l
l
l
l
l
l
l
l
l
l
l
f
t
t
t
t
t
t
t
t
t
t
t
SCL Clock Frequency
400
SCL
Hold Time (Repeated) Start Condition
Low Period of the SCL Clock Pin
High Period of the SCL Clock Pin
Set-Up Time for a Repeated Start Condition
Data Hold Time
0.6
HD(STA)
LOW
1.3
µs
0.6
µs
HIGH
SU(STA)
HD(DAT)
SU(DAT)
r
0.6
µs
0
0.9
µs
Data Set-Up Time
100
ns
Rise Time of ꢀoth SDA and SCL Signals
Fall Time of ꢀoth SDA and SCL Signals
Set-Up Time for Stop Condition
ꢀus Free Time ꢀetween a Stop and Start Condition
(Note 12)
(Note 12)
20 + 0.1C
20 + 0.1C
0.6
300
300
ns
ꢀ
ns
f
ꢀ
µs
SU(STO)
ꢀUF
1.3
µs
th
rd
Falling Edge of 9 Clock of the 3 Input ꢀyte to LDAC
High or Low Transition
400
ns
1
l
t
LDAC Low Pulse Width
20
ns
2
2635fb
ꢆ