LTC1860LCS8 Ver la hoja de datos (PDF) - Linear Technology
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LTC1860LCS8 Datasheet PDF : 12 Pages
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LTC1860L/LTC1861L
DY A IC ACCURACY
TA = 25°C. VCC = 3V, VREF = 3V, fSAMPLE = 150kHz, unless otherwise specified.
SYMBOL PARAMETER
CONDITIONS
SNR
Signal-to-Noise Ratio
S/(N + D) Signal-to-Noise Plus Distortion Ratio
1kHz Input Signal
THD
Total Hamonic Distortion Up to 5th Harmonic 1kHz Input Signal
Full Power Bandwidth
Full Linear Bandwidth
S/(N + D) ≥ 68dB
MIN TYP MAX UNITS
72
dB
72
dB
86
dB
10
MHz
30
kHz
DIGITAL A D DC ELECTRICAL CHARACTERISTICS The q denotes specifications which apply
over the full operating temperature range, otherwise specifications are TA = 25°C. VCC = 2.7V, VREF = 2.5V, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VIH
High Level Input Voltage
VIL
Low Level Input Voltage
IIH
High Level Input Current
IIL
Low Level Input Current
VOH
High Level Output Voltage
VOL
IOZ
ISOURCE
ISINK
IREF
ICC
Low Level Output Voltage
Hi-Z Output Leakage
Output Source Current
Output Sink Current
Reference Current (LTC1860L SO-8, MSOP
and LTC1861L MSOP)
Supply Current
PD
Power Dissipation
VCC = 3.3V
VCC = 2.7V
VIN = VCC
VIN = 0V
VCC = 2.7V, IO = 10µA
VCC = 2.7V, IO = 360µA
VCC = 2.7V, IO = 400µA
CONV = VCC
VOUT = 0V
VOUT = VCC
CONV = VCC
fSMPL = fSMPL(MAX)
CONV = VCC After Conversion
fSMPL = fSMPL(MAX)
fSMPL = fSMPL(MAX)
q 1.9
V
q
0.45
V
q
2.5
µA
q
– 2.5
µA
q 2.3
2.6
V
q 2.1
2.45
V
q
0.3
V
q
±3
µA
– 6.5
mA
6.5
mA
q
0.001
3
µA
q
0.01
0.1
mA
q
0.5
10
µA
q
0.45
1.0
mA
1.22
mW
RECO E DED OPERATI G CO DITIO
full operating temperature range, otherwise specifications are TA = 25°C.
SYMBOL PARAMETER
CONDITIONS
VCC
fSCK
tCYC
tSMPL
Supply Voltage
Clock Frequency
Total Cycle Time
Analog Input Sampling Time (Note 5)
LTC1860L
LTC1861L
tsuCONV Setup Time CONV↓ Before First SCK↑,
(See Figure 1)
thDI
tsuDI
tWHCLK
tWLCLK
tWHCONV
Holdtime SDI After SCK↑
Setup Time SDI Stable Before SCK↑
SCK High Time
SCK Low Time
CONV High Time Between Data
Transfer Cycles
LTC1861L
LTC1861L
fSCK = fSCK(MAX)
fSCK = fSCK(MAX)
tWLCONV CONV Low Time During Data Transfer
thCONV Hold Time CONV Low After Last SCK↑
S The q denotes specifications which apply over the
MIN TYP MAX UNITS
2.7
3.6
V
q DC
8
MHz
12 • SCK + tCONV
µs
12
SCK
10
SCK
60
ns
30
30
45%
45%
tCONV
12
26
ns
ns
1/fSCK
1/fSCK
µs
SCK
ns
18601Lf
3
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