參數(shù)資料
型號： LTC1417IGN
廠商： LINEAR TECHNOLOGY CORP
元件分類： ADC
英文描述： Low Power 14-Bit, 400ksps Sampling ADC Converter with Serial I/O
中文描述： 1-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16
封裝： 0.150 INCH, PLASTIC, SSOP-16
文件頁數(shù)： 12/32頁
文件大小： 394K
代理商： LTC1417IGN
12
LTC1417
LT1360:
50MHz Voltage Feedback Amplifier. 3.8mA sup-
ply current,
±
2.5V to
±
15V supplies. High A
VOL
, 1mV
offset and 80ns settling to 1mV (4V step, inverting and
noninverting configurations) make it suitable for fast DC
applications. Excellent AC specifications. Dual and quad
versions are available as LT1361 and LT1362.
LT1468:
90MHz Voltage Feedback Amplifier.
±
5V to
±
15V
supplies. Lower distortion and noise. Settles to 0.01% in
770ns. Distortion is –115dB to 20kHz.
LT1498/LT1499:
10MHz, 6V/
μ
s, Dual/Quad Rail-to-Rail
Input and Output Op Amps. 1.7mA supply current per
amplifier. 2.2V to
±
15V supplies. Good AC performance,
input noise voltage = 12nV/
√
Hz (typ).
LT1630/LT1631:
30MHz, 10V/
μ
s, Dual/Quad Rail-to-Rail
Input and Output Precision Op Amps. 3.5mA supply
current per amplifier. 2.7V to
±
15V supplies. Best AC
performance, input noise voltage = 6nV/
√
Hz (typ),
THD = –86dB at 100kHz.
LT1813:
Dual 100MHz 750V/
μ
s 3mA VFA. 5V to
±
5V
supplies. Distortion is –86dB to 100kHz and –77dB to
1MHz with
±
5V supplies (2V
P-P
into 500
). Great part for
fast AC applications with
±
5V supplies.
Input Filtering
The noise and the distortion of the input amplifier and
other circuitry must be considered since they will add to
the LTC1417 noise and distortion. The small-signal band-
width of the sample-and-hold circuit is 10MHz. Any noise
or distortion products that are present at the analog inputs
will be summed over this entire bandwidth. Noisy input
circuitry should be filtered prior to the analog inputs to
minimize noise. A simple 1-pole RC filter is sufficient for
many applications. For example, Figure 8 shows a 1000pF
APPLICATIO
S I
N
FOR
ATIO
U
W
U
LinearView is a trademark of Linear Technology Corporation.
Figure 7. t
ACQ
vs Source Resistance
SOURCE RESISTANCE (
)
0.1
A
μ
s
10
1
1
100
1k
10k
1417 F07
0.01
10
100
100k
Choosing an Input Amplifier
Choosing an input amplifier is easy if a few requirements
are taken into consideration. First, choose an amplifier that
has a low output impedance (<100
) at the closed-loop
bandwidth frequency. For example, if an amplifier is used
in a gain of 1 and has a closed-loop bandwidth of 10MHz,
then the output impedance at 10MHz must be less than
100
. The second requirement is that the closed-loop
bandwidth must be greater than 10MHz to ensure ad-
equate small-signal settling for full throughput rate. If
slower op amps are used, more settling time can be
provided by increasing the time between conversions.
The best choice for an op amp to drive the LTC1417 will
depend on the application. Generally, applications fall into
two categories: AC applications where dynamic specifica-
tions are most critical and time domain applications where
DC accuracy and settling time are most critical. The
following list is a summary of the op amps that are suitable
for driving the LTC1417. More detailed information is
available in the Linear Technology Databooks and on the
LinearView
TM
CD-ROM.
LT
1354:
12MHz, 400V/
μ
s Op Amp. 1.25mA maximum
supply current. Good AC and DC specifications. Suitable
for dual supply application.
LT1357:
25MHz, 600V/
μ
s Op Amp. 2.5mA maximum
supply current. Good AC and DC specifications. Suitable
for dual supply application.
Figure 8. RC Input Filter
LTC1417
A
IN+
A
IN–
V
REF
REFCOMP
AGND
ANALOG INPUT
100
1417 F08
1
2
3
4
5
1000pF
10
μ
F
相關PDF資料
PDF描述
LTC1418ACG Low Power, 14-Bit, 200ksps ADC with Serial and Parallel I/O
LTC1418AIG Low Power, 14-Bit, 200ksps ADC with Serial and Parallel I/O
LTC1418ACN Quad, Low Voltage, LinCMOS(TM) Differential Comparator 14-SOIC
LTC1418AIN Low Power, 14-Bit, 200ksps ADC with Serial and Parallel I/O
LTC1418C Quad, Low Voltage, LinCMOS(TM) Differential Comparator 14-PDIP
相關代理商/技術參數(shù)
參數(shù)描述
LTC1417IGN#PBF 功能描述:IC A/D CONV 14BIT SAMPLNG 16SSOP 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(chǎn)品目錄頁面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6
LTC1417IGN#TR 功能描述:IC ADC 14BIT 400KSPS SMPL 16SSOP 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):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉換器數(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
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LTC1418ACG#PBF 功能描述:IC A/D CONV 14BIT SRL&PAR 28SSOP 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(chǎn)品目錄頁面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6
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