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參數(shù)資料
| 型號(hào)： | LTC1290CISW |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類(lèi)： | ADC |
| 英文描述： | Single Chip 12-Bit Data Acquisition System |
| 中文描述： | 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20 |
| 封裝： | 0.300 INCH, PLASTIC, SOP-20 |
| 文件頁(yè)數(shù)： | 9/28頁(yè) |
| 文件大?。?/td> | 381K |
| 代理商： | LTC1290CISW |
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9
LTC 1290
U
S
A
O
PPLICATI
U
U
of the data exchange the requested conversion begins and
CS should be brought high. After t
CONV
, the conversion is
complete and the results will be available on the next data
transfer cycle. As shown below, the result of a conversion
is delayed by one CS cycle from the input word requesting
it.
The LTC1290 is a data acquisition component which
contains the following functional blocks:
1. 12-bit successive approximation capacitive A/D
converter
2. Analog multiplexer (MUX)
3. Sample-and-hold (S/H)
4. Synchronous, full duplex serial interface
5. Control and timing logic
DIGITAL CONSIDERATIONS
Serial Interface
The LTC1290 communicates with microprocessors and
other external circuitry via a synchronous, full duplex,
four-wire serial interface (see Operating Sequence). The
shift clock (SCLK) synchronizes the data transfer with
each bit being transmitted on the falling SCLK edge and
captured on the rising SCLK edge in both transmitting and
receiving systems. The data is transmitted and received
simultaneously (full duplex).
Data transfer is initiated by a falling chip select (CS) signal.
After the falling CS is recognized, an 8-bit input word is
shifted into the D
IN
input which configures the LTC1290
for the next conversion. Simultaneously, the result of the
previous conversion is output on the D
OUT
line. At the end
SGL/
DIFF
SELECT
1
SELECT
0
UNI
MSBF
WL1
MUX ADDRESS
MSB-FIRST/
LSB-FIRST
UNIPOLAR/
BIPOLAR
WORD
LENGTH
LTC1290 AI02
ODD/
SIGN
WL0
D
IN
D
OUT
D
OUT
WORD 0
D
IN
WORD 1
DATA
TRANSFER
D
OUT
WORD 2
D
IN
WORD 3
D
OUT
WORD 1
D
IN
WORD 2
DATA
TRANSFER
t
CONV
CONVERSION
t
CONV
CONVERSION
LTC1290 AI01
Input Data Word
The LTC1290 8-bit data word is clocked into the D
IN
input
on the first eight rising SCLK edges after chip select is
recognized. Further inputs on the D
IN
pin are then ignored
until the next CS cycle. The eight bits of the input word are
defined as follows:
1
2
3
4
5
6
7
8
9
10
11
12
tCONV
tCYC
SHIFT CONFIGURATION
WORD IN
tSMPL
SHIFT A/D RESULT OUT AND
NEW CONFIGURATION WORD IN
B11 B10 B9
(SB)
B8
B7
B6
B5
B4
B3
B2
B1
B0
LTC1290 AI03
SCLK
DIN
DOUT
CS
DONT CARE
DON’T CARE
Operating Sequence
(Example: Differential Inputs (CH3-CH2), Bipolar, MSB-First and 12-Bit Word Length)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC1290CM | Single Chip 12-Bit Data Acquisition System |
| LTC1290CMJ | Single Chip 12-Bit Data Acquisition System |
| LTC1290DC | Single Chip 12-Bit Data Acquisition System |
| LTC1290DCN | Single Chip 12-Bit Data Acquisition System |
| LTC1290DCSW | Single Chip 12-Bit Data Acquisition System |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC1290CISW#PBF | 功能描述:IC DATA ACQ SYS 12BIT 20-SOIC RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專(zhuān)用型 系列:- 產(chǎn)品培訓(xùn)模塊:Data Converter Basics 標(biāo)準(zhǔn)包裝:1 系列:- 類(lèi)型:電機(jī)控制 分辨率（位）:12 b 采樣率（每秒）:1M 數(shù)據(jù)接口:串行，并聯(lián) 電壓電源:單電源 電源電壓:2.7 V ~ 3.6 V，4.5 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:100-TQFP 供應(yīng)商設(shè)備封裝:100-TQFP（14x14） 包裝:剪切帶 (CT) 其它名稱(chēng):296-18373-1 |
| LTC1290CISW#PBF | 制造商:Linear Technology 功能描述:ADC, 8CH, 12BIT, 50KSPS, SOIC-20 |
| LTC1290CISW#TR | 功能描述:IC DATA ACQ SYS 12BIT 5V 20SOIC RoHS:否 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專(zhuān)用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類(lèi)型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤(pán) |
| LTC1290CISW#TRPBF | 功能描述:IC DATA ACQ SYS 12BIT 20-SOIC RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專(zhuān)用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類(lèi)型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤(pán) |
| LTC1290CMJ | 制造商:Linear Technology 功能描述:ADC Single SAR 50ksps 12-bit Serial 20-Pin CDIP |
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