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参数资料
| 型号： | LTC1197IMS8#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 5/28页 |
| 文件大小： | 0K |
| 描述： | IC ADC 10BIT 500KHZ SHTDWN 8MSOP |
| 标准包装： | 50 |
| 位数： | 10 |
| 采样率（每秒）： | 500k |
| 数据接口： | MICROWIRE?，串行，SPI? |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 25mW |
| 电压电源： | 单电源 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-MSOP |
| 包装： | 管件 |
| 输入数目和类型： | 1 个差分，单极 |
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13
LTC1197/LTC1197L
LTC1199/LTC1199L
1197/99 F02
CLK
CS
tdDO
tsuCS
B0*
B1
B2
B3
B4
B5
B6
B7
B8
B9
NULL
BITS
Hi-Z
14
13
12
11
10
9
8
7
6
5
4
3
2
1
15
16
1
DOUT
DIN
HI-Z
START
DUMMY
DON’T CARE
ODD/
SIGN
SGL/
DIFF
*AFTER COMPLETING THE DATA TRANSFER, IF FURTHER CLOCKS ARE APPLIED WITH CS LOW,
THE ADC WILL OUTPUT ZEROS INDEFINITELY
ten
tCYC (16 CLKs)*
tCONV
(10.5 CLKs)
POWER
DOWN
tSMPL
(1.5 CLKs)
Figure 2. LTC1199/LTC1199L Operating Sequence
transfer and all leading zeros that precede this logical one
will be ignored. After the start bit is received the remaining
bits of the input word will be clocked in. Further inputs on
the DIN pin are then ignored until the next CS cycle.
Multiplexer (MUX) Address
The bits of the input word following the start bit assign the
MUX configuration 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 following table. In
single-ended mode, all input channels are measured with
respect to GND. Only the + inputs have sample-and-holds.
Signals applied at the – inputs must not change more than
the required accuracy during the conversion.
Multiplexer Channel Selection
MUX ADDRESS
SGL/DIFF
1
0
ODD/SIGN
0
1
0
1
CHANNEL #
0
+
–
1
+
–
+
GND
–
1197/99 AI02
The LTC1197/LTC1197L do not require a configuration
input word and have no DIN pin. A falling CS initiates data
transfer as shown in the LTC1197/LTC1197L operating
sequence. After CS falls, the second CLK pulse enables
DOUT. After two null bits, the A/D conversion result is output
on the DOUT line in MSB-first format. Bringing CS high
resets the LTC1197/LTC1197L for the next data exchange
and minimizes the supply current if CLK is continuously
running.
INPUT DATA WORD (LTC1199/LTC1199L ONLY)
The LTC1199 4-bit data word is clocked into the DIN input
on the rising edge of the clock after CS goes low and the
start bit has been recognized. Further inputs on the DIN pin
are then ignored until the next CS cycle. The input word is
defined as follows:
SGL/
DIFF
ODD/
SIGN
DUMMY
START
MUX
ADDRESS
1197/99 AI01
Start Bit
The first “logical one” clocked into the DIN input after CS
goes low is the start bit. The start bit initiates the data
APPLICATIO S I FOR ATIO
WU
UU
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC1197IS8 | 功能描述:IC A/DCONV 10BIT W/SHTDWN 8-SOIC RoHS:否 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:2,500 系列:- 位数:16 采样率（每秒）:15 数据接口:MICROWIRE?，串行，SPI? 转换器数目:1 功率耗散（最大）:480µW 电压电源:单电源 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:38-WFQFN 裸露焊盘 供应商设备封装:38-QFN（5x7） 包装:带卷 (TR) 输入数目和类型:16 个单端，双极；8 个差分，双极 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494 |
| LTC1197IS8#PBF | 功能描述:IC A/DCONV 10BIT W/SHTDWN 8-SOIC RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1 系列:microPOWER™ 位数:8 采样率（每秒）:1M 数据接口:串行，SPI? 转换器数目:1 功率耗散（最大）:- 电压电源:模拟和数字 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:24-VFQFN 裸露焊盘 供应商设备封装:24-VQFN 裸露焊盘（4x4） 包装:Digi-Reel® 输入数目和类型:8 个单端，单极 产品目录页面:892 (CN2011-ZH PDF) 其它名称:296-25851-6 |
| LTC1197IS8#TR | 功能描述:IC ADC 10BIT 500KHZ SHTDWN 8SOIC RoHS:否 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:2,500 系列:- 位数:16 采样率（每秒）:15 数据接口:MICROWIRE?，串行，SPI? 转换器数目:1 功率耗散（最大）:480µW 电压电源:单电源 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:38-WFQFN 裸露焊盘 供应商设备封装:38-QFN（5x7） 包装:带卷 (TR) 输入数目和类型:16 个单端，双极；8 个差分，双极 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494 |
| LTC1197IS8#TRPBF | 功能描述:IC A/DCONV 10BIT W/SHTDWN 8-SOIC RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:2,500 系列:- 位数:16 采样率（每秒）:15 数据接口:MICROWIRE?，串行，SPI? 转换器数目:1 功率耗散（最大）:480µW 电压电源:单电源 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:38-WFQFN 裸露焊盘 供应商设备封装:38-QFN（5x7） 包装:带卷 (TR) 输入数目和类型:16 个单端，双极；8 个差分，双极 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494 |
| LTC1197L | 制造商:LINER 制造商全称:Linear Technology 功能描述:10-Bit, 500ksps ADCs in MSOP with Auto Shutdown |
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