AC CHARACTERISTICS The denotes the specificat" />
參數(shù)資料
型號(hào): LTC1290DCSW#TR
廠商: Linear Technology
文件頁(yè)數(shù): 27/32頁(yè)
文件大?。?/td> 0K
描述: IC DATA ACQ SYS 12BIT 5V 20SOIC
標(biāo)準(zhǔn)包裝: 1,000
類型: 數(shù)據(jù)采集系統(tǒng)(DAS),ADC
分辨率(位): 12 b
采樣率(每秒): 50k
數(shù)據(jù)接口: 串行,并聯(lián)
電壓電源: 雙 ±
電源電壓: ±5 V,5 V
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)
4
LTC1290
1290fe
AC CHARACTERISTICS The denotes the specifications which apply over the full operating temperature range,
otherwise specifications are at TA = 25°C. (Note 3)
LTC1290B/LTC1290C/LTC1290D
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
fSCLK
Shift Clock Frequency
VCC = 5V (Note 6)
0
2.0
MHz
fACLK
A/D Clock Frequency
VCC = 5V (Note 6)
(Note 10)
4.0
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 LTC1290BC, LTC1290CC
130
220
ns
LTC1290DC, LTC1290BI
LTC1290CI, LTC1290DI
LTC1290BM, LTC1290CM
180
270
ns
LTC1290DM
(OBSOLETE)
tdis
Delay Time, CS
↑ to DOUT Hi-Z
See Test Circuits
70
100
ns
ten
Delay Time, 2nd ACLK
↓ to DOUT Enabled
See Test Circuits
130
200
ns
thCS
Hold Time, CS After Last SCLK
VCC = 5V (Note 6)
0
ns
thDI
Hold Time, DIN After SCLK
VCC = 5V (Note 6)
50
ns
thDO
Time Output Data Remains Valid After SCLK
50
ns
tf
DOUT Fall Time
See Test Circuits
65
130
ns
tr
DOUT Rise Time
See Test Circuits
25
50
ns
tsuDI
Setup Time, DIN Stable Before SCLK
VCC = 5V (Note 6)
50
ns
tsuCS
Setup Time, CS
↓ Before Clocking in
(Notes 6, 9)
2 ACLK Cycles
First Address Bit
+ 100ns
tWHCS
CS High Time During Conversion
VCC = 5V (Note 6)
52
ACLK
Cycles
CIN
Input Capacitance
Analog Inputs On Channel
100
pF
Analog Inputs Off Channel
5
pF
Digital Inputs
5
pF
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