参数资料
型号: LTC1297CCN8#PBF
厂商: Linear Technology
文件页数: 7/24页
文件大小: 0K
描述: IC DATA ACQ SYSTEM 12BIT 8-DIP
标准包装: 50
类型: 数据采集系统(DAS)
分辨率(位): 12 b
采样率(每秒): 60k
数据接口: 串行,并联
电压电源: 单电源
电源电压: 5V
工作温度: 0°C ~ 70°C
安装类型: 通孔
封装/外壳: 8-DIP(0.300",7.62mm)
供应商设备封装: 8-PDIP
包装: 管件
15
LTC1292/LTC1297
12927fb
U
S
A
O
PPLICATI
WU
U
I FOR ATIO
Figure 11b. Setup Time (tsuCS) Is Met for the LTC1292
Figure 11c. Setup Time (tsuCS) Is Not Met for the LTC1292
tsuCS. With the minimum possible sample time of 6s,
RSOURCE+ < 5k and C1 < 20pF will provide adequate
settling time. In general for both the LTC1292 and LTC1297
keep the product of the total resistance and the total
capacitance less than tSMPL/9. If this condition can not be
met, then make C1 > 0.47
F (see RC Input Filtering
section).
“–” Input Settling
At the end of the sample phase the input capacitor switches
to the “–” input and the conversion starts (see Figures 11a,
11b, 11c and 12). During the conversion, the “+” input
voltage is effectively “held” by the sample-and-hold and
will not affect the conversion result. It is critical that the
DOUT
CLK
B11
HI-Z
B9
B10
LTC1292/7 F11b
CS
1ST BIT TEST (–) INPUT MUST
SETTLE DURING THIS TIME
tWHCS
tSMPL
(+) INPUT MUST SETTLE DURING THIS TIME
(+) INPUT
(–) INPUT
DOUT
CLK
B11
HI-Z
B10
LTC1292/7 F11c
CS
1ST BIT TEST (–) INPUT MUST
SETTLE DURING THIS TIME
tWHCS
tSMPL
(+) INPUT MUST SETTLE DURING THIS TIME
(+) INPUT
(–) INPUT
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