- 您現在的位置：買賣IC網 > PDF目錄377770 > LTC2435-1CGN (LINEAR TECHNOLOGY CORP) 20-Bit No Latency ADCs with Differential Input and Differential Reference PDF資料下載
參數資料
| 型號： | LTC2435-1CGN |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | ADC |
| 英文描述： | 20-Bit No Latency ADCs with Differential Input and Differential Reference |
| 中文描述： | 1-CH 20-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO16 |
| 封裝： | 0.150 INCH, PLASTIC, SSOP-16 |
| 文件頁數： | 16/40頁 |
| 文件大?。?/td> | 463K |
| 代理商： | LTC2435-1CGN |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁當前第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁
LTC2435/LTC2435-1
16
24351fa
APPLICATIU
W
U
U
The LTC2435 internal oscillator provides better than 110dB
normal mode rejection at the line frequency and its harmon-
ics for 50Hz
±
2% or 60Hz
±
2%. For 60Hz rejection, F
O
should be connected to GND while for 50Hz rejection the F
O
pin should be connected to V
CC
.
The selection of 50Hz or 60Hz rejection can also be made by
driving F
O
to an appropriate logic level. A selection change
during the sleep or data output states will not disturb the
converter operation. If the selection is made during the
conversion state, the result of the conversion in progress
may be outside specifications but the following conver-
sions will not be affected.
When a fundamental rejection frequency different from
50Hz or 60Hz is required or when the converter must be
synchronized with an outside source, the LTC2435 can
operate with an external conversion clock. The converter
automatically detects the presence of an external clock
signal at the F
O
pin and turns off the internal oscillator. The
frequency f
EOSC
of the external signal must be at least 5kHz
to be detected. The external clock signal duty cycle is not
significant as long as the minimum and maximum specifi-
cations for the high and low periods t
HEO
and t
LEO
are
observed.
While operating with an external conversion clock of a
frequency f
EOSC
, the LTC2435 provides better than 110dB
normal mode rejection in a frequency range f
EOSC
/2560
±
4% and its harmonics. The normal mode rejection as a
function of the input frequency deviation from f
EOSC
/2560
is shown in Figure 7a.
Whenever an external clock is not present at the F
O
pin, the
converter automatically activates its internal oscillator and
enters the Internal Conversion Clock mode. The LTC2435
operation will not be disturbed if the change of conversion
clock source occurs during the sleep state or during the
data output state while the converter uses an external serial
clock. If the change occurs during the conversion state, the
result of the conversion in progress may be outside speci-
fications but the following conversions will not be affected.
If the change occurs during the data output state and the
converter is in the Internal SCK mode, the serial clock duty
cycle may be affected but the serial data stream will remain
valid.
Table 3a summarizes the duration of each state and the
achievable output data rate as a function of F
O
.
Frequency Rejection Selection LTC2435-1 (F
O
)
The LTC2435-1 internal oscillator provides better than
87dB normal mode rejection over the range of 49Hz to
61.2Hz as shown in Figure 7b. For simultaneous 50Hz/60Hz
rejection, F
O
should be connected to GND.
In order to achieve 87dB normal mode rejection of 50Hz
±
2% and 60Hz
±
2%, two consecutive conversions must be
averaged. By performing a continuous running average of
the two most current results, both simultaneous rejection
is achieved and a nearly 2
×
increase in throughput is
realized relative to the LTC2430 (see Normal Mode Rejec-
tion, Ouput Rate and Running Averages sections of this
data sheet).
When a fundamental rejection frequency different from
the range 49Hz to 61.2Hz is required or when the converter
must be synchronized with an outside source, the
LTC2435-1 can operate with an external conversion clock.
The performance of the LTC2435-1 is the same as the
LTC2435 when driven by an external conversion clock at
the F
O
pin.
Table 3b summarizes the duration of each state and the
achievable output data rate as a function of F
O
.
Serial Interface Pins
The LTC2435/LTC2435-1 transmit the conversion results
and receive the start of conversion command through a
synchronous 3-wire interface. During the conversion and
sleep states, this interface can be used to assess the
converter status and during the data output state it is used
to read the conversion result.
相關PDF資料 |
PDF描述 |
|---|---|
| LTC2435CGN | 20-Bit No Latency ADCs with Differential Input and Differential Reference |
| LTC2436-1IGN | 2-Channel Differential Input 16-Bit No Latency DS ADC |
| LTC2436-1 | 2-Channel Differential Input 16-Bit No Latency DS ADC |
| LTC2436-1CGN | 2-Channel Differential Input 16-Bit No Latency DS ADC |
| LTC2439-1CGN | 8-/16-Channel 16-Bit No Latency Delta-Sigma ADC |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LTC2435-1CGN#PBF | 功能描述:IC ADC DIFF I/REF 20BIT 16-SSOP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1 系列:microPOWER™ 位數:8 采樣率（每秒）:1M 數據接口:串行，SPI? 轉換器數目:1 功率耗散（最大）:- 電壓電源:模擬和數字 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤 供應商設備封裝:24-VQFN 裸露焊盤（4x4） 包裝:Digi-Reel® 輸入數目和類型:8 個單端，單極 產品目錄頁面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6 |
| LTC2435-1CGN#TR | 功能描述:IC CONV A/D 20BIT DIFF 16-SSOP RoHS:否 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:2,500 系列:- 位數:16 采樣率（每秒）:15 數據接口:MICROWIRE?，串行，SPI? 轉換器數目:1 功率耗散（最大）:480µW 電壓電源:單電源 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:38-WFQFN 裸露焊盤 供應商設備封裝:38-QFN（5x7） 包裝:帶卷 (TR) 輸入數目和類型:16 個單端，雙極；8 個差分，雙極 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494 |
| LTC2435-1CGN#TRPBF | 功能描述:IC ADC DIFF I/REF 20BIT 16-SSOP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:2,500 系列:- 位數:16 采樣率（每秒）:15 數據接口:MICROWIRE?，串行，SPI? 轉換器數目:1 功率耗散（最大）:480µW 電壓電源:單電源 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:38-WFQFN 裸露焊盤 供應商設備封裝:38-QFN（5x7） 包裝:帶卷 (TR) 輸入數目和類型:16 個單端，雙極；8 個差分，雙極 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494 |
| LTC2435-1IGN | 功能描述:IC CONV A/D 20BIT DIFF 16-SSOP RoHS:否 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:2,500 系列:- 位數:16 采樣率（每秒）:15 數據接口:MICROWIRE?，串行，SPI? 轉換器數目:1 功率耗散（最大）:480µW 電壓電源:單電源 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:38-WFQFN 裸露焊盤 供應商設備封裝:38-QFN（5x7） 包裝:帶卷 (TR) 輸入數目和類型:16 個單端，雙極；8 個差分，雙極 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494 |
| LTC2435-1IGN#PBF | 功能描述:IC ADC DIFF I/REF 20BIT 16-SSOP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:2,500 系列:- 位數:16 采樣率（每秒）:15 數據接口:MICROWIRE?，串行，SPI? 轉換器數目:1 功率耗散（最大）:480µW 電壓電源:單電源 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:38-WFQFN 裸露焊盤 供應商設備封裝:38-QFN（5x7） 包裝:帶卷 (TR) 輸入數目和類型:16 個單端，雙極；8 個差分，雙極 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494 |
發(fā)布緊急采購，3分鐘左右您將得到回復。