參數(shù)資料
型號: LTC2401IMS
廠商: LINEAR TECHNOLOGY CORP
元件分類: ADC
英文描述: 18-Bit Universal Bus Driver With 3-State Outputs 56-SSOP -40 to 85
中文描述: 1-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO10
封裝: PLASTIC, MSOP-10
文件頁數(shù): 7/12頁
文件大?。?/td> 171K
代理商: LTC2401IMS
7
LTC2401/LTC2402
APPLICATIOU
falling edge of SCK. The final data bit (Bit 0) is shifted out
on the falling edge of the 31st SCK and may be latched on
the rising edge of the 32nd SCK pulse. On the falling edge
of the 32nd SCK pulse, SDO goes HIGH indicating a new
conversion cycle has been initiated. This bit serves as EOC
(Bit 31) for the next conversion cycle. Table 2 summarizes
the output data format.
As long as the voltage on the V
IN
pin is maintained within
the –0.3V to (V
CC
+ 0.3V) absolute maximum operating
range, a conversion result is generated for any input value
from –0.125 V
REF
to 1.125 V
REF
.
For input voltages
greater than 1.125 V
REF
, the conversion result is clamped
to the value corresponding to 1.125 V
REF
. For input
voltages below –0.125 V
REF
, the conversion result is
clamped to the value corresponding to –0.125 V
REF
.
W
U
U
Single Ended Half-Bridge Digitizer
with Reference and Ground Sensing
Sensors convert real world phenomena (temperature,
pressure, gas levels, etc.) into a voltage. Typically, this
voltage is generated by passing an excitation current
Table 2. LTC2401/LTC2402 Output Data Format
Bit 31
Input Voltage
EOC
V
IN
> 9/8 V
REF
0
9/8 V
REF
0
V
REF
+ 1LSB
0
V
REF
0
3/4V
REF
+ 1LSB
0
3/4V
REF
0
1/2V
REF
+ 1LSB
0
1/2V
REF
0
1/4V
REF
+ 1LSB
0
1/4V
REF
0
0
+
/0
0
–1LSB
0
–1/8 V
REF
0
V
IN
< –1/8 V
REF
0
*The sub LSBs are valid conversion results beyond the 24-bit level that may be included in averaging or discarded without loss of resolution.
**The sign bit changes state during the 0 code.
Bit 30
CH SELECT
CH0/CH1
CH0/CH1
CH0/CH1
CH0/CH1
CH0/CH1
CH0/CH1
CH0/CH1
CH0/CH1
CH0/CH1
CH0/CH1
CH0/CH1
CH0/CH1
CH0/CH1
CH0/CH1
Bit 29
SIG
1
1
1
1
1
1
1
1
1
1
1/0**
0
0
0
Bit 28
EXR
1
1
1
0
0
0
0
0
0
0
0
1
1
1
Bit 27
MSB
0
0
0
1
1
1
1
0
0
0
0
1
1
1
Bit 26
Bit 25
Bit 24
Bit 23
Bit 4
LSB
1
1
0
1
0
1
0
1
0
1
0
1
0
0
Bit 3-0
SUB LSBs*
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
0
0
1
1
0
0
1
1
0
0
1
1
1
0
0
0
1
0
1
0
1
0
1
0
1
1
1
1
1
0
1
0
1
0
1
0
1
0
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
0
...
...
...
...
...
...
...
...
...
...
...
...
...
...
V
FULL-SCALE ERROR
SENSOR
SENSOR OUTPUT
R
P1
I
EXCITATION
+
V
OFFSET ERROR
+
+
R
P2
24012 F02
Figure 2. Errors Due to Excitation Currents
through the sensor. The wires connecting the sensor to the
ADC form parasitic resistors R
P1
and R
P2
. The excitation
current also flows through parasitic resistors R
P1
and R
P2
,
as shown in Figure 2. The voltage drop across these
parasitic resistors leads to systematic offset and full-scale
errors.
In order to eliminate the errors associated with these
parasitic resistors, the LTC2401/LTC2402 include a full-
scale set input (FS
SET
) and a zero-scale set input
(ZS
SET
). As shown in Figure 3, the FS
SET
pin acts as a zero
input full-scale sense input. Errors due to parasitic resis-
tance R
P1
in series with the half-bridge sensor are
相關PDF資料
PDF描述
LTC2402 1-/2-Channel 24-Bit uPower No Latency ADC in MSOP-10
LTC2402C 18-Bit Universal Bus Driver With 3-State Outputs 56-TSSOP -40 to 85
LTC2402I 1-/2-Channel 24-Bit uPower No Latency ADC in MSOP-10
LTC2402IMS 1-/2-Channel 24-Bit uPower No Latency ADC in MSOP-10
LTC2404CG 4-/8-Channel 24-Bit uPower No Latency ADCs
相關代理商/技術參數(shù)
參數(shù)描述
LTC2401IMS#PBF 功能描述:IC ADC 24BIT 1CH MICROPWR 10MSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉換器 系列:- 標準包裝: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 安裝類型:表面貼裝 封裝/外殼:28-SOIC(0.295",7.50mm 寬) 供應商設備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類型:2 個單端,單極
LTC2401IMS#TR 功能描述:IC ADC 24BIT 1CH MICROPWR 10MSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉換器 系列:- 標準包裝: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 安裝類型:表面貼裝 封裝/外殼:28-SOIC(0.295",7.50mm 寬) 供應商設備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類型:2 個單端,單極
LTC2401IMS#TRPBF 功能描述:IC ADC 24BIT 1CH MICROPWR 10MSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉換器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 位數(shù):12 采樣率(每秒):3M 數(shù)據(jù)接口:- 轉換器數(shù)目:- 功率耗散(最大):- 電壓電源:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應商設備封裝:SOT-23-6 包裝:帶卷 (TR) 輸入數(shù)目和類型:-
LTC2402CMS 功能描述:IC ADC 24BIT 2CH MICROPWR 10MSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉換器 系列:- 標準包裝: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 安裝類型:表面貼裝 封裝/外殼:28-SOIC(0.295",7.50mm 寬) 供應商設備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類型:2 個單端,單極
LTC2402CMS#PBF 功能描述:IC ADC 24BIT 2CH MICROPWR 10MSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉換器 系列:- 標準包裝:1 系列:microPOWER™ 位數(shù):8 采樣率(每秒):1M 數(shù)據(jù)接口:串行,SPI? 轉換器數(shù)目:1 功率耗散(最大):- 電壓電源:模擬和數(shù)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(shù)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