LTC1199 查看數據表（PDF） - Linear Technology
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LTC1199 Datasheet PDF : 28 Pages
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LTC1197/LTC1197L
LTC1199/LTC1199L
AC CHARACTERISTICS
The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C.
VCC = 5V, VREF = 5V, fCLK = fCLK(MAX) as defined in Recommended Operating Conditions, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
LTC1197
MIN TYP MAX
LTC1199
MIN TYP MAX
UNITS
tCONV
fSMPL(MAX)
tdDO
Conversion Time (See Figures 1, 2)
Maximum Sampling Frequency
Delay Time, CLK↑ to DOUT Data Valid CLOAD = 20pF
q
1.4
1.4
µs
q 500
450
kHz
68 78
q
100
68 78
ns
100
ns
tdis
Delay Time, CS↑ to DOUT Hi-Z
q
75 150
75 150
ns
ten
Delay Time, CLK↓ to DOUT Enabled CLOAD = 20pF
q
40 68
40 68
ns
thDO
Time Output Data Remains
CLOAD = 20pF
q 15 55
15 55
ns
Valid After CLK↑
tr
DOUT Rise Time
tf
DOUT Fall Time
CLOAD = 20pF
CLOAD = 20pF
q
10 20
q
10 20
10 20
ns
10 20
ns
CIN
Input Capacitance
Analog Input On Channel
20
Analog Input Off Channel
5
Digital Input
5
20
pF
5
pF
5
pF
The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C.
VCC = 2.7V, VREF = 2.5V, fCLK = fCLK(MAX) as defined in Recommended Operating Conditions, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
LTC1197L
MIN TYP MAX
LTC1199L
MIN TYP MAX
UNITS
tCONV
fSMPL(MAX)
tdDO
Conversion Time (See Figures 1, 2)
Maximum Sampling Frequency
Delay Time, CLK↑ to DOUT Data Valid CLOAD = 20pF
q
2.9
2.9
µs
q 250
210
kHz
130 180
q
250
130 180
ns
250
ns
tdis
Delay Time, CS↑ to DOUT Hi-Z
ten
Delay Time, CLK↓ to DOUT Enabled CLOAD = 20pF
q
120 250
q
100 200
120 250
ns
100 200
ns
thDO
Time Output Data Remains
CLOAD = 20pF
q 30 120
30 120
ns
Valid After CLK↑
tr
DOUT Rise Time
CLOAD = 20pF
q
15 40
15 40
ns
tf
DOUT Fall Time
CLOAD = 20pF
q
15 40
15 40
ns
CIN
Input Capacitance
Analog Input On Channel
20
Analog Input Off Channel
5
Digital Input
5
20
pF
5
pF
5
pF
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: All voltage values are with respect to GND.
Note 3: Integral nonlinearity is defined 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 after the channel selection.
6
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