Datasheet

LTC1860/LTC1861
6
18601fa
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: All voltage values are with respect to GND.
Note 3: Integral nonlinearity is defi ned as deviation of a code from a
straight line passing through the actual endpoints of the transfer curve.
The deviation is measured from the center of the quantization band.
Note 4: Channel leakage current is measured while the part is in sample
mode.
Note 5: Guaranteed by design, not subject to test.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
t
CONV
Conversion Time (See Figure 1)
H-Grade
l
l
2.75
2.75
3.2
3.3
μs
μs
f
SMPL(MAX)
Maximum Sampling Frequency
H-Grade
l
l
250
248
kHz
kHz
t
dDO
Delay Time, SCK↓ to SDO Data Valid C
LOAD
= 20pF
C
LOAD
= 20pF
C
LOAD
= 20pF, H-Grade
l
l
15 20
25
30
ns
ns
ns
t
dis
Delay Time, CONV↑ to SDO Hi-Z
H-Grade
l
l
30
30
60
65
ns
ns
t
en
Delay Time, CONV↓ to SDO Enabled C
LOAD
= 20pF
C
LOAD
= 20pF, H-Grade
l
l
30
30
60
65
ns
ns
t
hDO
Time Output Data Remains Valid After
SCK↓
C
LOAD
= 20pF
l
510 ns
t
r
SDO Rise Time C
LOAD
= 20pF 8 ns
t
f
SDO Fall Time C
LOAD
= 20pF 4 ns
TIMING CHARACTERISTICS
The ● denotes specifi cations which apply over the full operating temperature
range, otherwise specifi cations are T
A
= 25°C. V
CC
= 5V, V
REF
= 5V, f
SCK
= f
SCK(MAX)
as defi ned in Recommended Operating
Conditions, unless otherwise noted.