參數(shù)資料
型號(hào)： LTC1598LCG
廠商： LINEAR TECHNOLOGY CORP
元件分類(lèi)： ADC
英文描述： Replaced by ADS7961 : 8-Bit, 76 kSPS ADC Serial Out, On-Chip 20 Ch. Analog Mux, 19 Ch. 28-PLCC
中文描述： 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24
封裝： 0.209 INCH, PLASTIC, SSOP-24
文件頁(yè)數(shù)： 11/24頁(yè)
文件大?。?/td> 278K
代理商： LTC1598LCG
11
LTC1594L/LTC1598L
APPLICATIO
S I
N
FOR
ATIO
U
W
U
Figure 2. LTC1594L/LTC1598L Operating Sequence Example: All Channels Off
CLK
EN
D1
D2
t
CYC
Hi-Z
D
OUT
CH0 TO
CH7
D
IN
t
CONV
Hi-Z
t
suCS
NULL
BIT
D0
t
OFF
D0N‘T CARE
ADCIN =
MUXOUT
COM = GND
1594L/98L F02
DUMMY CONVERSION
CSMUX = CSADC = CS
break-before-make interval, t
OPEN
. After a delay of t
ON
(t
OFF
+ t
OPEN
), the selected channel is switched on,
allowing the ADC in the chip to acquire input signal and
start the conversion (see Figures 1 and 2). After 1 null bit,
the result of the conversion is output on the D
OUT
line.
The selected channel remains on, until the next falling
edge of CS. At the end of the data exchange, CS should
be brought high. This resets the LTC1594L/LTC1598L
and initiates the next data exchange.
D
IN1
D
IN2
D
OUT1
D
OUT2
CS
SHIFT MUX
ADDRESS IN
t
SMPL
+ 1 NULL BIT
SHIFT A/D CONVERSION
RESULT OUT
1594L/98L AI01
Break-Before-Make
The LTC1594L/LTC1598L provide a break-before-make
interval from switching off all the channels simulta-
neously to switching on the next selected channel once
CS is pulled low. In other words, once CS is pulled low,
Data Transfer
The CLK synchronizes the data transfer with each bit
being transmitted on the falling CLK edge and captured
on the rising CLK edge in both transmitting and receiving
systems.
The LTC1594L/LTC1598L first receive input data and
then transmit back the A/D conversion results (half
duplex). Because of the half duplex operation, D
IN
and
D
OUT
may be tied together allowing transmission over
just 3 wires: CS, CLK and DATA (D
IN
/D
OUT
).
Data transfer is initiated by a rising chip select (CS)
signal. After CS rises, the input data on the D
IN
pin is
latched into a 4-bit register on the rising edge of the clock.
More than four input bits can be sent to the D
IN
pin
without problems, but only the last four bits clocked in
before CS falls will be stored into the 4-bit register. This
4-bit input data word will select the channel in the
muliplexer (see Input Data Word and Tables 1 and 2). To
ensure correct operation, the CS must be pulled low
before the next rising edge of the clock.
Once the CS is pulled low, all channels are simulta-
neously switched off after a delay of t
OFF
to ensure a
相關(guān)PDF資料
PDF描述
LTC1594L 4- Channel, 3V Micropower Sampling 12-Bit Serial I/O A/D Converters(四通道,3V微功耗采樣12位串行輸入/輸出模數(shù)轉(zhuǎn)換器)
LTC1594 8-Bit, 40 kSPS ADC Serial-Out, On-Chip 12-Ch. Analog Mux, 11 Ch. 20-SOIC
LTC1598IG 4- and 8-Channel, Micropower Sampling 12-Bit Serial I/O A/D Converters
LTC1594CS 4- and 8-Channel, Micropower Sampling 12-Bit Serial I/O A/D Converters
LTC1594IS 4- and 8-Channel, Micropower Sampling 12-Bit Serial I/O A/D Converters
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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LTC1598LCG#TRPBF 功能描述:IC A/D CONV 12BIT SRL 8CH 24SSOP RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):16 采樣率（每秒）:45k 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:315mW 電壓電源:模擬和數(shù)字 工作溫度:0°C ~ 70°C 安裝類(lèi)型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類(lèi)型:2 個(gè)單端，單極
LTC1598LIG 功能描述:IC A/D CONV 12BIT SRL 8CH 24SSOP RoHS:否 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):16 采樣率（每秒）:45k 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:315mW 電壓電源:模擬和數(shù)字 工作溫度:0°C ~ 70°C 安裝類(lèi)型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類(lèi)型:2 個(gè)單端，單極
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