参数资料
型号: LTC1098CN8#PBF
厂商: Linear Technology
文件页数: 10/32页
文件大小: 0K
描述: IC A/D CONV 8BIT SRL IN/OUT 8DIP
标准包装: 50
位数: 8
采样率(每秒): 33k
数据接口: 串行
转换器数目: 1
功率耗散(最大): 780µW
电压电源: 单电源
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
输入数目和类型: 1 个差分,单极
产品目录页面: 1345 (CN2011-ZH PDF)
LTC1096/LTC1096L
LTC1098/LTC1098L
18
10968fc
APPLICATIONS INFORMATION
Multiplexer (MUX) Address
The bits of the input word following the START bit assign
the MUX conguration for the requested conversion. For
a given channel selection, the converter will measure the
voltage between the two channels indicated by the “+”
and “–” signs in the selected row of the followintg tables.
In single-ended mode, all input channels are measured
with respect to GND.
MSB-First/LSB-First (MSBF)
The output data of the LTC1098(L) is programmed for
MSB-rst or LSB-rst sequence using the MSBF bit.
When the MSBF bit is a logical one, data will appear on
the DOUT line in MSB-rst format. Logical zeros will be
lled in indenitely following the last data bit. When the
MSBF bit is a logical zero, LSB-rst data will follow the
normal MSB-rst data on the DOUT line. (see Operating
Sequence)
MUX ADDRESS
SGL/DIFF
1
0
ODD/SIGN
0
1
0
1
CHANNEL #
0
+
1
+
+
GND
SINGLE-ENDED MUX MODE
DIFFERENTIAL MUX MODE
10968 AI03
OUTPUT CODE
1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 0
0 0 0 0 0 0 0 1
0 0 0 0 0 0 0 0
INPUT VOLTAGE
VREF – 1LSB
VREF – 2LSB
1LSB
0V
INPUT VOLTAGE
(VREF = 5.000V)
4.9805V
4.9609V
0.0195V
0V
10968 AI05
0V
1LSB
V
REF
–2LSB
V
REF
–1LSB
V
REF
VIN
0 0 0 0 0 0 0 1
0 0 0 0 0 0 0 0
1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 0
10968 AI04
Unipolar Transfer Curve
The LTC1096(L)/LTC1098(L) are permanently congured
for unipolar only. The input span and code assignment for
this conversion type are shown in the following gures
for a 5V reference.
Unipolar Transfer Curve
LTC1098(L) Channel Selection
Unipolar Output Code
Operation with DIN and DOUT Tied Together
The LTC1098(L) can be operated with DIN and DOUT tied
together. This eliminates one of the lines required to com-
municate to the microprocessor (MPU). Data is transmit-
ted in both directions on a single wire. The processor pin
connected to this data line should be congurable as either
an input or an output. The LTC1098(L) will take control of
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