- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377746 > LTC1410IG (LINEAR TECHNOLOGY CORP) 12-Bit, 1.25Msps Sampling A/D Converter with Shutdown PDF資料下載
參數(shù)資料
| 型號： | LTC1410IG |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | ADC |
| 英文描述： | 12-Bit, 1.25Msps Sampling A/D Converter with Shutdown |
| 中文描述： | 1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDSO28 |
| 封裝： | 0.209 INCH, PLASTIC, SSOP-28 |
| 文件頁數(shù)： | 9/16頁 |
| 文件大?。?/td> | 148K |
| 代理商： | LTC1410IG |
9
LTC 1410
APPLICATIO
S I
FOR
ATIO
U
where V
1
is the RMS amplitude of the fundamental fre-
quency and V
2
through V
n
are the amplitudes of the
second through nth harmonics. THD vs Input Frequency is
shown in Figure 4. The LTC1410 has good distortion
performance up to the Nyquist frequency and beyond.
W
U
U
FREQUENCY (MHz)
0
A
0
–20
–40
–60
–80
–100
–120
100
(f
b
–f
a
)
(f
a
+f
b
) (2f
a
+f
b
)
(2f
a
)
(2f
b
)
(f
a
+2f
b
)
(f
a
)
(f
b
)
(2f
b
–f
a
)
200
300
400
1410 F05
500
600
f
SAMPLE
= 1.25MHz
f
IN1
= 88.19580078kHz
f
IN2
= 111.9995117kHz
(2f
a
–f
b
)
(3f
a
)
(3f
b
)
Figure 5. Intermodulation Distortion Plot
Peak Harmonic or Spurious Noise
The peak harmonic or spurious noise is the largest spec-
tral component excluding the input signal and DC. This
value is expressed in decibel relative to the RMS value of
a full-scale input signal.
Full Power and Full Linear Bandwidth
The full power bandwidth is that input frequency at which
the amplitude of the reconstructed fundamental is re-
duced by 3dB for a full-scale input signal.
The full linear bandwidth is the input frequency at which
the S/(N + D) has dropped to 68dB (11 effective bits). The
LTC1410 has been designed to optimize input bandwidth,
allowing the ADC to undersample input signals with fre-
quencies above the converter’s Nyquist frequency. The
noise floor stays very low at high frequencies; S/(N + D)
does not become dominated by distortion until frequen-
cies far beyond Nyquist.
Driving the Analog Input
The differential analog inputs of the LTC1410 are easy to
drive. The inputs may be driven differentially or as a
single-ended input (i.e., the –A
IN
input is grounded). The
+A
IN
and –A
IN
inputs are sampled at the same instant.
Any unwanted signal that is common mode to both
inputs will be reduced by the common mode rejection of
the sample-and-hold circuit. The inputs draw only one
small current spike while charging the sample-and-hold
INPUT FREQUENCY (Hz)
1k
A
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
10k
100k
1410 G03
1M
10M
THD
2ND
3RD
Figure 4. Distortion vs Input Frequency
Intermodulation Distortion (IMD)
If the ADC input signal consists of more than one spectral
component, the ADC transfer function nonlinearity can
produce Intermodulation Distortion in addition to THD.
IMD is the change in one sinusoidal input caused by the
presence of another sinusoidal input at a different
frequency.
If two pure sine waves of frequencies f
a
and f
b
are applied
to the ADC input, nonlinearities in the ADC transfer func-
tion can create distortion products at the sum and differ-
ence frequencies of mf
a
±
nf
b
, where m and n = 0, 1, 2, 3,
etc. For example, the 2nd order IMD terms include
(f
a
+ f
b
). If the two input sine waves are equal in magnitude,
the value (in decibels) of the 2nd order IMD products can
be expressed by the following formula:
IMD f
f
f
Amplitud f
a
b
b
+
(
)
=
±
(
)
20 log
Amplitude at f
a
a
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC1410CG | 12-Bit, 1.25Msps Sampling A/D Converter with Shutdown |
| LTC1410 | 12-Bit, 1.25Msps Sampling A/D Converter with Shutdown |
| LTC1410C | 12-Bit, 1.25Msps Sampling A/D Converter with Shutdown |
| LTC1410CSW | 12-Bit, 1.25Msps Sampling A/D Converter with Shutdown |
| LTC1410I | 12-Bit, 1.25Msps Sampling A/D Converter with Shutdown |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC1410IG#PBF | 功能描述:IC A/D CONV 12BIT SAMPLNG 28SSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標準包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個單端，單極；1 個單端，雙極 |
| LTC1410IG#TR | 功能描述:IC ADC 12BIT 1.25MSPS SMP 28SSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標準包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個單端，單極；1 個單端，雙極 |
| LTC1410IG#TRPBF | 功能描述:IC A/D CONV 12BIT SAMPLNG 28SSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標準包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個單端，單極；1 個單端，雙極 |
| LTC1410ISW | 功能描述:IC A/D CONV 12BIT SAMPLNG 28SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標準包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個單端，單極；1 個單端，雙極 |
| LTC1410ISW#PBF | 功能描述:IC A/D CONV 12BIT SAMPLNG 28SOIC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標準包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個單端，單極；1 個單端，雙極 |
發(fā)布緊急采購，3分鐘左右您將得到回復。