參數(shù)資料
型號(hào)： LTC1197LCS8
廠商： LINEAR TECHNOLOGY CORP
元件分類： ADC
英文描述： 10-Bit, 500ksps ADCs in MSOP with Auto Shutdown
中文描述： 1-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8
封裝： 0.150 INCH, PLASTIC, SOP-8
文件頁數(shù)： 20/28頁
文件大?。?/td> 446K
代理商： LTC1197LCS8
20
LTC1197/LTC1197L
LTC1199/LTC1199L
U
S
A
Signal-to-Noise Ratio
T
he signal-to-noise ratio (SNR) 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. This includes distortion as well as noise
products and for this reason it is sometimes referred to
as signal-to-noise + distortion [S/(N + D)]. The output is
band limited to frequencies from DC to one half the
sampling frequency. Figure 9 shows spectral content
from DC to 250kHz which is 1/2 the 500kHz sampling
rate.
O
PPLICATI
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:
ENOB = [S/(N + D) –1.76]/6.02
where S/(N + D) is expressed in dB. At the maximum
sampling rate of 500kHz the LTC1197 maintains 9.5
ENOBs or better to 200kHz. Above 200kHz the ENOBs
gradually decline, as shown in Figure 10, due to increasing
second harmonic distortion. The noise floor remains
approximately 100dB.
FREQUENCY (kHz)
0
A
–40
–20
–30
–10
0
1197/99 G06
–60
–80
–50
–70
–90
–100
50
100
150
200
250
f
SMPL
= 500kHz
f
IN
Figure 9. This Clean FFT of a 97kHz Input Shows Remarkable
Performance for an ADC Sampling at the 500kHz Rate
FREQUENCY (kHz)
1
4
E
5
6
7
8
10
100
1000
1197/99 G07
3
2
1
0
9
10
V
= 2.7V
f
SMPL
= 250kHz
V
= 5V
f
SMPL
= 500kHz
Figure 10. Dynamic Accuracy is Maintained
Up to an Input Frequency of 200kHz for the
LTC1197 and 50kHz for the LTC1197L
相關(guān)PDF資料
PDF描述
LTC1197LI 10-Bit, 500ksps ADCs in MSOP with Auto Shutdown
LTC1199IS8 10-Bit, 500ksps ADCs in MSOP with Auto Shutdown
LTC1250C Very Low Noise Zero-Drift Bridge Amplifier
LTC1250 Very Low Noise Zero-Drift Bridge Amplifier
LTC1250CJ8 Very Low Noise Zero-Drift Bridge Amplifier
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC1197LCS8#PBF 功能描述:IC ADC 10BIT 250KHZ W/SD 8-SOIC 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:2,500 系列:- 位數(shù):16 采樣率（每秒）:15 數(shù)據(jù)接口:MICROWIRE?，串行，SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:480µW 電壓電源:單電源 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:38-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:38-QFN（5x7） 包裝:帶卷 (TR) 輸入數(shù)目和類型:16 個(gè)單端，雙極；8 個(gè)差分，雙極 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494
LTC1197LCS8#TR 功能描述:IC ADC 10BIT 250KHZ W/SD 8-SOIC 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:2,500 系列:- 位數(shù):16 采樣率（每秒）:15 數(shù)據(jù)接口:MICROWIRE?，串行，SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:480µW 電壓電源:單電源 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:38-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:38-QFN（5x7） 包裝:帶卷 (TR) 輸入數(shù)目和類型:16 個(gè)單端，雙極；8 個(gè)差分，雙極 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494
LTC1197LCS8#TRPBF 功能描述:IC ADC 10BIT 250KHZ W/SD 8-SOIC 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:2,500 系列:- 位數(shù):16 采樣率（每秒）:15 數(shù)據(jù)接口:MICROWIRE?，串行，SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:480µW 電壓電源:單電源 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:38-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:38-QFN（5x7） 包裝:帶卷 (TR) 輸入數(shù)目和類型:16 個(gè)單端，雙極；8 個(gè)差分，雙極 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494
LTC1197LI 制造商:LINER 制造商全稱:Linear Technology 功能描述:10-Bit, 500ksps ADCs in MSOP with Auto Shutdown
LTC1197LIMS8 功能描述:IC ADC 10BIT 250KHZ W/SD 8-MSOP 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:2,500 系列:- 位數(shù):16 采樣率（每秒）:15 數(shù)據(jù)接口:MICROWIRE?，串行，SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:480µW 電壓電源:單電源 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:38-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:38-QFN（5x7） 包裝:帶卷 (TR) 輸入數(shù)目和類型:16 個(gè)單端，雙極；8 個(gè)差分，雙極 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494
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