fSCLK Shift Clock Freq" />
參數(shù)資料
型號(hào): LTC1289BCSW#TR
廠商: Linear Technology
文件頁數(shù): 22/28頁
文件大?。?/td> 0K
描述: IC DATA ACQ SYS 12BIT 3V 20SOIC
標(biāo)準(zhǔn)包裝: 1,000
類型: 數(shù)據(jù)采集系統(tǒng)(DAS)
分辨率(位): 12 b
采樣率(每秒): 25k
數(shù)據(jù)接口: 串行,并聯(lián)
電壓電源: 雙 ±
電源電壓: ±3.3V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 20-SOIC(0.295",7.50mm 寬)
供應(yīng)商設(shè)備封裝: 20-SOIC
包裝: 帶卷 (TR)
3
LTC1289
1289fb
LTC1289B
LTC1289C
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
fSCLK
Shift Clock Frequency
(Note 6)
0
1.0
MHz
fACLK
A/D Clock Frequency
(Note 6)
(Note 10)
2.0
MHz
tACC
Delay time from CS
↓ to DOUT Data Valid
(Note 9)
2
ACLK
Cycles
tSMPL
Analog Input Sample Time
See Operating Sequence
7
SCLK
Cycles
tCONV
Conversion Time
See Operating Sequence
52
ACLK
Cycles
tCYC
Total Cycle Time
See Operating Sequence (Note 6)
12 SCLK +
Cycles
56 ACLK
tdDO
Delay Time, SCLK
↓ to DOUT Data Valid
See Test Circuits
200
350
ns
tdis
Delay Time, CS
↑ to DOUT Hi-Z
See Test Circuits
70
150
ns
ten
Delay Time, 2nd ACLK
↓ to DOUT Enabled
See Test Circuits
130
250
ns
thCS
Hold Time, CS After Last SCLK
(Note 6)
0
ns
thDI
Hold Time, DIN After SCLK
(Note 6)
50
ns
thDO
Time Output Data Remains Valid After SCLK
50
ns
tf
DOUT Fall Time
See Test Circuits
40
100
ns
tr
DOUT Rise Time
See Test Circuits
40
100
ns
tsuDI
Setup Time, DIN Stable Before SCLK
(Note 6 and 9)
50
ns
tsuCS
Setup Time, CS
↓ Before Clocking in
(Note 6 and 9)
2 ACLK Cycles
First Address Bit
+ 180ns
tWHCS
CS High Time During Conversion
(Note 6)
52
ACLK
Cycles
CIN
Input Capacitance
Analog Inputs On Channel
100
pF
Analog Inputs Off Channel
5
pF
Digital Inputs
5
pF
The
denotes the specifications
which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3)
CO VERTER A D
ULTIPLEXER CHARACTERISTICS
UU W
LTC1289B
LTC1289C
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
Minimum Resolution for
12
BITS
Which No Missing Codes are
Guaranteed
Analog and REF Input Range
(Note 7)
(V) – 0.05V to VCC + 0.05V
V
On Channel Leakage Current
On Channel = 3V
±1
A
(Note 8)
Off Channel = 0V
On Channel = 0V
±1
A
Off Channel = 3V
Off Channel Leakage Current
On Channel = 3V
±1
A
(Note 8)
Off Channel = 0V
On Channel = 0V
±1
A
Off Channel = 3V
AC CHARACTERISTICS The denotes the specifications which apply over the full operating temperature range,
otherwise specifications are at TA = 25°C. (Note 3)
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