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參數(shù)資料
| 型號： | LTC1603CG |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | ADC |
| 英文描述： | High Speed, 16-Bit, 250ksps Sampling A/D Converter with Shutdown |
| 中文描述： | 1-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDSO36 |
| 封裝： | 5.3 MM, PLASTIC, SSOP-36 |
| 文件頁數(shù)： | 17/20頁 |
| 文件大?。?/td> | 250K |
| 代理商： | LTC1603CG |
1603f
17
LTC1603
APPLICATIO
S I
FOR
ATIO
U
Signal-to-Noise Ratio
The signal-to-noise plus distortion ratio [S/(N + D)] is the
ratio between the RMS amplitude of the fundamental input
frequency to the RMS amplitude of all other frequency
components at the A/D output. The output is band limited
to frequencies from above DC and below half the sampling
frequency. Figure 18a shows a typical spectral content
with a 250kHz sampling rate and a 5kHz input. The
dynamic performance is excellent for input frequencies up
to and beyond the Nyquist limit of 125kHz.
W
U
U
Effective Number of Bits
The effective number of bits (ENOBs) is a measurement of
the resolution of an ADC and is directly related to the
S/(N + D) by the equation:
N = [S/(N + D) – 1.76]/6.02
where N is the effective number of bits of resolution and
S/(N + D) is expressed in dB. At the maximum sampling
rate of 250kHz the LTC1603 maintains above 14 bits up to
the Nyquist input frequency of 125kHz (refer to Figure 19).
Total Harmonic Distortion
Total harmonic distortion (THD) is the ratio of the RMS
sum of all harmonics of the input signal to the fundamental
itself. The out-of-band harmonics alias into the frequency
band between DC and half the sampling frequency. THD is
expressed as:
THD
Log
V
V
V
Vn
V
=
+
+
+
20
2
3
4
1
2
2
2
2
...
where V1 is the RMS amplitude of the fundamental fre-
quency and V2 through Vn are the amplitudes of the
second through nth harmonics. THD vs Input Frequency is
shown in Figure 20. The LTC1603 has good distortion
performance up to the Nyquist frequency and beyond.
Figure 18b. Even with Inputs at 100kHz, the LTC1603’s
Dymanic Linearity Remains Robust
Figure 20. Distortion vs Input Frequency
Figure 19. Effective Bits and Signal/(Noise + Distortion)
vs Input Frequency
FREQUENCY (kHz)
A
–60
–40
–20
1603 F18b
–80
–100
–120
–140
0
0
60
20
40
80
100
120
f
SAMPLE
= 250kHz
f
SINAD = 89dB
THD = –96dB
FREQUENCY (Hz)
1k
E
S
16
15
14
13
12
11
10
9
8
98
92
86
80
74
68
62
56
50
10k
100k
1M
1603 F19
INPUT FREQUENCY (Hz)
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
A
1603 F20
1k
10k
100k
1M
THD
3RD
2ND
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC1603IG | High Speed, 16-Bit, 250ksps Sampling A/D Converter with Shutdown |
| LTC1604CG | Quadruple 2-Input Exclusive-OR Gates 14-PDIP 0 to 70 |
| LTC1604I | High Speed, 16-Bit, 333ksps Sampling A/D Converter with Shutdown |
| LTC1604IG | Quadruple 2-Input Exclusive-OR Gates 14-PDIP 0 to 70 |
| LTC1604ACG | Quadruple 2-Input Exclusive-OR Gates 14-SOIC 0 to 70 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC1603CG#PBF | 功能描述:IC ADC SMPL SHTDWN 16BIT 36-SSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 其它有關(guān)文件:TSA1204 View All Specifications 標(biāo)準(zhǔn)包裝:1 系列:- 位數(shù):12 采樣率（每秒）:20M 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:155mW 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-TQFP 供應(yīng)商設(shè)備封裝:48-TQFP（7x7） 包裝:Digi-Reel® 輸入數(shù)目和類型:4 個單端，單極；2 個差分，單極 產(chǎn)品目錄頁面:1156 (CN2011-ZH PDF) 其它名稱:497-5435-6 |
| LTC1603CG#TR | 功能描述:IC CONV A/D 16BIT 250KSPS 36SSOP 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(biāo)準(zhǔn)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(yīng)商設(shè)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 |
| LTC1603CG#TRPBF | 功能描述:IC ADC W/SHUTDOWN 16BIT 36-SSOP 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(biāo)準(zhǔn)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(yīng)商設(shè)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 |
| LTC1603IG | 功能描述:IC CONV A/D 16BIT 250KSPS 36SSOP 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(biāo)準(zhǔn)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(yīng)商設(shè)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 |
| LTC1603IG#PBF | 功能描述:IC ADC W/SHUTDOWN 16BIT 36-SSOP 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(biāo)準(zhǔn)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(yīng)商設(shè)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 |
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