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| 型号： | DC1190A-B |
| 厂商： | Linear Technology |
| 文件页数： | 6/24页 |
| 文件大小： | 0K |
| 描述： | BOARD SAR ADC LTC2365 |
| 软件下载： | QuikEval System |
| 设计资源： | DC1190A Design Files DC1190A Schematic |
| 标准包装： | 1 |
| 系列： | QuikEval™ |
| ADC 的数量： | 1 |
| 位数： | 12 |
| 采样率（每秒）： | 1M |
| 数据接口： | MICROWIRE?，串行，SPI? |
| 已用 IC / 零件： | LTC2365 |
| 已供物品： | 板 |
| 相关产品： | LTC2365ITS8#TRPBF-ND - IC ADC 12BIT 1MSPS TSOT23-8 LTC2365ITS8#TRMPBFTR-ND - IC ADC 12BIT 1MSPS TSOT23-8 LTC2365IS6#TRPBF-ND - IC ADC 12BIT 1MSPS TSOT23-6 LTC2365IS6#TRMPBFTR-ND - IC ADC 12BIT 1MSPS TSOT23-6 LTC2365HTS8#TRPBF-ND - IC ADC 12BIT 1MSPS TSOT23-8 LTC2365HTS8#TRMPBFTR-ND - IC ADC 12BIT 1MSPS TSOT23-8 LTC2365HS6#TRPBF-ND - IC ADC 12BIT 1MSPS TSOT23-6 LTC2365HS6#TRMPBFTR-ND - IC ADC 12BIT 1MSPS TSOT23-6 LTC2365CTS8#TRPBF-ND - IC ADC 12BIT 1MSPS TSOT23-8 LTC2365CTS8#TRMPBFTR-ND - IC ADC 12BIT 1MSPS TSOT23-8 更多... |
LTC2365/LTC2366
14
23656fb
For more information www.linear.com/LTC2365
Figure 10. LTC2365/LTC2366 Serial Interface Timing Diagram
applications inForMation
OVERVIEW
The LTC2365/LTC2366 use a successive approximation
algorithm and internal sample-and-hold circuit to convert
an analog signal to a 12-bit serial output. Both devices
operate from a single 2.35V to 3.6V supply. The LTC2366
samples at a rate of 3Msps with a 48MHz clock while the
LTC2365 samples at a rate of 1Msps with a 16MHz clock.
TheLTC2365/LTC2366containa12-bit,switched-capacitor
ADC, a sample-and-hold, and a serial interface (see Block
Diagram) and are available in tiny 6- and 8-lead TSOT-23
packages.Thedevicesprovidesleepmodecontrolthrough
the serial interface to save power during inactive periods
(see the SLEEP MODE section).
The S6 package of the LTC2365/LTC2366 uses VDD as the
reference and has an analog input range of 0V to VDD. The
ADC samples the analog input with respect to GND and
outputs the result through the serial interface.
The TS8 package provides two additional pins: a reference
input pin, VREF, and an output supply pin, OVDD. The ADC
can operate with reduced spans down to 1.4V and achieve
342V resolution. OVDD controls the output swing of the
digital output pin, SDO, and allows the device to com-
municate with 1.8V, 2.5V or 3V digital systems.
SERIAL INTERFACE
The LTC2365/LTC2366 communicate with microcon-
trollers, DSPs and other external circuitry via a 3-wire
interface. Figure 10 shows the serial interface timing dia-
gram, while Figures 11 and 12 detail the timing diagrams
ofconversioncyclesin14and16SCKcycles,respectively.
Data Transfer
A falling CS edge starts a conversion and frames the se-
rial data transfer. SCK provides the conversion clock and
controls the data transfer during the conversion.
CS going LOW clocks out the first leading zero and sub-
sequent SCK falling edges clock out the remaining data,
beginning with the second leading zero. (Therefore, the
first SCK falling edge captures the first leading zero and
clocks out the second leading zero). The timing diagram
in Figure 12 shows that the final bit in the data transfer is
valid on the 16th falling edge, since it is clocked out on
the previous 15th falling edge.
In applications with a slower SCK, it is possible to capture
data on each SCK rising edge. In such cases, the first
falling edge of SCK clocks out the second leading zero
and can be captured on the first rising edge. However,
the first leading zero clocked out when CS goes LOW is
missed, as shown in Figures 11 and 12. In Figure 12, the
15th falling edge of SCK clocks out the last bit and can
be captured on the 15th rising SCK edge.
If CS goes LOW while SCK is LOW, then CS clocks out the
first leading zero and can be captured on the SCK rising
edge. The next SCK falling edge clocks out the second
leading zero and can be captured on the following rising
edge, as shown in Figure 10.
1
SCK
SDO
t2
t3
t4
t7
t5
t8
ZERO
B11
B10
B9
B1
B0
ZERO
2
3
4
(MSB)
Hi-Z STATE
5
13
14
15
16
t6
tQUIET
tACQ
13tSCK
tTHROUGHPUT
tCONV
CS
t1
23656 F10
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相关代理商/技术参数 |
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| DC1190A-C | 功能描述:BOARD SAR ADC LTC2362 RoHS:是 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:QuikEval™ 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- ADC 的数量:1 位数:12 采样率（每秒）:94.4k 数据接口:USB 输入范围:±VREF/2 在以下条件下的电源（标准）:- 工作温度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，软件 |
| DC1190A-D | 功能描述:BOARD SAR ADC LTC2361 RoHS:是 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:QuikEval™ 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- ADC 的数量:1 位数:12 采样率（每秒）:94.4k 数据接口:USB 输入范围:±VREF/2 在以下条件下的电源（标准）:- 工作温度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，软件 |
| DC1190A-E | 功能描述:BOARD SAR ADC LTC2360 RoHS:是 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:QuikEval™ 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- ADC 的数量:1 位数:12 采样率（每秒）:94.4k 数据接口:USB 输入范围:±VREF/2 在以下条件下的电源（标准）:- 工作温度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，软件 |
| DC1192A | 制造商:Linear Technology 功能描述:BOARD EVAL LT6105 |
| DC1194A | 功能描述:BOARD EVAL LTM8020 RoHS:否 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:µModule® 标准包装:1 系列:- 主要目的:DC/DC，步降 输出及类型:1，非隔离 功率 - 输出:- 输出电压:3.3V 电流 - 输出:3A 输入电压:4.5 V ~ 28 V 稳压器拓扑结构:降压 频率 - 开关:250kHz 板类型:完全填充 已供物品:板 已用 IC / 零件:L7981 其它名称:497-12113STEVAL-ISA094V1-ND |
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