- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377749 > LTC1454IS (LINEAR TECHNOLOGY CORP) Dual 12-Bit Rail-to-Rail Micropower DACs PDF資料下載
參數(shù)資料
| 型號(hào)： | LTC1454IS |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | DAC |
| 英文描述： | Dual 12-Bit Rail-to-Rail Micropower DACs |
| 中文描述： | DUAL, SERIAL INPUT LOADING, 14 us SETTLING TIME, 12-BIT DAC, PDSO16 |
| 封裝： | 0.150 INCH, PLASTIC, SO-16 |
| 文件頁(yè)數(shù)： | 7/12頁(yè) |
| 文件大?。?/td> | 246K |
| 代理商： | LTC1454IS |
7
LTC1454/LTC1454L
DEFU
Resolution (n):
Resolution is defined as the number of
digital input bits, n. It defines the number of DAC output
states (2
n
) that divide the full-scale range. The resolution
does not imply linearity.
Full-Scale Voltage (V
FS
):
This is the output of the DAC
when all bits are set to 1.
Voltage Offset Error (V
OS
):
The theoretical voltage at the
output when the DAC is loaded with all zeros. The output
amplifier can have a true negative offset, but because the
part is operated from a single supply, the output cannot go
below zero. If the offset is negative, the output will remain
near 0V resulting in the transfer curve shown in Figure 1.
U
LSB = (V
FS
– V
OS
)/(2
n
– 1) = (V
FS
– V
OS
)/4095
Nominal LSBs:
LTC1454
LSB = 4.095V/4095 = 1mV
LTC1454L
LSB = 2.5V/4095 = 0.610mV
Integral Nonlinearity (INL):
End-point INL is the maxi-
mum deviation from a straight line passing through the
end-points of the DAC transfer curve. Because the part
operates from a single supply and the output cannot go
below zero, the linearity is measured between full scale
and the code corresponding to the maximum offset speci-
fication. The INL error at a given input code is calculated
as follows:
INL
= [V
OUT
– V
OS
– (V
FS
– V
OS
)(Code/4095)]/LSB
V
OUT
= The output voltage of the DAC measured at
the given input code
Differential Nonlinearity (DNL):
DNL is the difference
between the measured change and the ideal 1LSB change
between any two adjacent codes. The DNL error between
any two codes is calculated as follows:
DNL
= (
V
OUT
– LSB)/LSB
V
OUT
= The measured voltage difference between
two adjacent codes
Digital Feedthrough:
The glitch that appears at the analog
output caused by AC coupling from the digital inputs when
they change state. The area of the glitch is specified in
(nV)(sec).
DAC CODE
LTC1454/5 F01
OUTPUT
VOLTAGE
NEGATIVE
OFFSET
0V
Figure 1. Effect of Negative Offset
The offset of the part is measured at the code that corre-
sponds to the maximum offset specification:
V
OS
= V
OUT
– (Code)(V
FS
)/(2
n
– 1)
Least Significant Bit (LSB):
One LSB is the ideal voltage
difference between two successive codes.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC1454LC | Dual 12-Bit Rail-to-Rail Micropower DACs |
| LTC1454LCN | Dual 12-Bit Rail-to-Rail Micropower DACs |
| LTC1454LCS | Dual 12-Bit Rail-to-Rail Micropower DACs |
| LTC1454LI | Dual 12-Bit Rail-to-Rail Micropower DACs |
| LTC1454CS | Dual 12-Bit Rail-to-Rail Micropower DACs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC1454IS#PBF | 功能描述:IC D/A CONV 12BIT R-R DUAL16SOIC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 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:- 設(shè)置時(shí)間:4µs 位數(shù):12 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 電壓電源:單電源 功率耗散（最大）:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:8-uMAX 包裝:管件 輸出數(shù)目和類型:2 電壓，單極 采樣率（每秒）:* 產(chǎn)品目錄頁(yè)面:1398 (CN2011-ZH PDF) |
| LTC1454IS#TR | 功能描述:IC DAC 12BIT R-R DUAL 5V 16SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:47 系列:- 設(shè)置時(shí)間:2µs 位數(shù):14 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 電壓電源:單電源 功率耗散（最大）:55µW 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:28-SSOP 包裝:管件 輸出數(shù)目和類型:1 電流，單極；1 電流，雙極 采樣率（每秒）:* |
| LTC1454IS#TRPBF | 功能描述:IC D/A CONV 12BIT R-R DUAL16SOIC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:47 系列:- 設(shè)置時(shí)間:2µs 位數(shù):14 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 電壓電源:單電源 功率耗散（最大）:55µW 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:28-SSOP 包裝:管件 輸出數(shù)目和類型:1 電流，單極；1 電流，雙極 采樣率（每秒）:* |
| LTC1454LCN | 功能描述:IC D/A CONV 12BIT R-R DUAL 16DIP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:47 系列:- 設(shè)置時(shí)間:2µs 位數(shù):14 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 電壓電源:單電源 功率耗散（最大）:55µW 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:28-SSOP 包裝:管件 輸出數(shù)目和類型:1 電流，單極；1 電流，雙極 采樣率（每秒）:* |
| LTC1454LCN#PBF | 功能描述:IC D/A CONV 12BIT R-R DUAL 16DIP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:47 系列:- 設(shè)置時(shí)間:2µs 位數(shù):14 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 電壓電源:單電源 功率耗散（最大）:55µW 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:28-SSOP 包裝:管件 輸出數(shù)目和類型:1 電流，單極；1 電流，雙極 采樣率（每秒）:* |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。