LTC1290(Rev_C) Ver la hoja de datos (PDF) - Linear Technology
Número de pieza
componentes Descripción
Fabricante
LTC1290 Datasheet PDF : 28 Pages
| |||
LTC1290
AC CHARACTERISTICS (Note 3)
SYMBOL
fSCLK
fACLK
tACC
tSMPL
tCONV
tCYC
tdDO
tdis
ten
thCS
thDI
thDO
tf
tr
tsuDI
tsuCS
tWHCS
CIN
PARAMETER
Shift Clock Frequency
A/D Clock Frequency
Delay time from CS↓ to DOUT Data Valid
CONDITIONS
VCC = 5V (Note 6)
VCC = 5V (Note 6)
(Note 9)
LTC1290B/LTC1290C/LTC1290D
MIN
TYP
MAX
0
2.0
(Note 10)
4.0
2
Analog Input Sample Time
See Operating Sequence
7
Conversion Time
See Operating Sequence
52
Total Cycle Time
See Operating Sequence (Note 6)
12 SCLK +
56 ACLK
Delay Time, SCLK↓ to DOUT Data Valid
See Test Circuits LTC1290BC, LTC1290CC q
LTC1290DC, LTC1290BI
LTC1290CI, LTC1290DI
130
220
LTC1290BM, LTC1290CM q
LTC1290DM
180
270
Delay Time, CS↑ to DOUT Hi-Z
See Test Circuits
q
70
100
Delay Time, 2nd ACLK↓ to DOUT Enabled
See Test Circuits
q
130
200
Hold Time, CS After Last SCLK↓
VCC = 5V (Note 6)
0
Hold Time, DIN After SCLK↑
VCC = 5V (Note 6)
50
Time Output Data Remains Valid After SCLK↓
50
DOUT Fall Time
See Test Circuits
q
65
130
DOUT Rise Time
See Test Circuits
q
25
50
Setup Time, DIN Stable Before SCLK↑
VCC = 5V (Note 6)
50
Setup Time, CS↓ Before Clocking in
First Address Bit
(Notes 6, 9)
2 ACLK Cycles
+ 100ns
CS High Time During Conversion
VCC = 5V (Note 6)
52
Input Capacitance
Analog Inputs On Channel
100
Analog Inputs Off Channel
5
Digital Inputs
5
UNITS
MHz
MHz
ACLK
Cycles
SCLK
Cycles
ACLK
Cycles
Cycles
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ACLK
Cycles
pF
pF
pF
DIGITAL A D DC ELECTRICAL CHARACTERISTICS (Note 3)
SYMBOL
VIH
VIL
IIH
IIL
VOH
PARAMETER
High Level Input Voltage
Low Level Input Voltage
High Level Input Current
Low Level Input Current
High Level Output Voltage
VOL
Low Level Output Voltage
IOZ
High-Z Output Leakage
ISOURCE Output Source Current
CONDITIONS
VCC = 5.25V
VCC = 4.75V
VIN = VCC
VIN = 0V
VCC = 4.75V IO = 10µA
IO = 360µA
VCC = 4.75V IO = 1.6mA
VOUT = VCC, CS High
VOUT = 0V, CS High
VOUT = 0V
LTC1290B/LTC1290C/LTC1290D
MIN TYP MAX
q
2.0
q
0.8
q
2.5
q
– 2.5
4.7
q
2.4
4.0
q
0.4
q
3
q
–3
–20
UNITS
V
V
µA
µA
V
V
V
µA
µA
mA
3
Share Link: 