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LTC1278-4CSW PDF预览

LTC1278-4CSW

更新时间： 2024-11-11 22:57:35
品牌 Logo 应用领域
凌特 - Linear 转换器
页数 文件大小 规格书
16页 332K
描述
12-Bit, 500ksps Sampling A/D Converter with Shutdown

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中文翻译

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LTC1278-4CSW 数据手册

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LTC1278  
12-Bit, 500ksps Sampling  
A/D Converter with Shutdown  
U
DESCRIPTIO  
EATURE  
Single Supply 5V or ±5V Operation  
Two Speed Grades,500ksps (LTC1278-5)  
400ksps (LTC1278-4)  
70dB S/(N + D) and 74dB THD at Nyquist  
No Missing Codes Over Temperature  
75mW (Typ) Power Dissipation  
Power Shutdown with Instant Wake-Up  
Internal Reference Can Be Overdriven Externally  
Internal Synchronized Clock; No Clock Required  
High Impedance Analog Input  
S
F
The LTC®1278 is a 1.6µs, 500ksps, sampling 12-bit A/D  
converter that draws only 75mW from a single 5V or±5V  
supplies. This easy-to-use device comes complete with  
a 200ns sample-and-hold, a precision reference and an  
internally trimmed clock. Unipolar and bipolar conver-  
sion modes add to the flexibility of the ADC. The low  
power dissipation is made even more attractive by a  
8.5mWpower-downfeature. Instantwake-upfromshut-  
down allows the converter to be powered down even  
during brief inactive periods.  
■
■
■
■
■
■
■
■
■
■
■
0V to 5V or ±2.5V Input Range  
New Flexible, Friendly Parallel Interface to DSPs  
and FIFOs  
The LTC1278 converts 0V to 5V unipolar inputs from a  
single 5V supply and ±2.5V bipolar inputs from ±5V  
supplies. Maximum DC specs include ±1LSB INL and  
±1LSB DNL. Outstanding guaranteed AC performance  
includes 70dB S/(N + D) and 78dB THD at the input  
frequency of 100kHz over temperature.  
■
24-Pin Narrow PDIP and SW Packages  
O U  
PPLICATI  
A
S
■
■
■
■
■
High Speed Data Acquisition  
The internal clock is trimmed for 1.6µs conversion time.  
The clock automatically synchronizes to each sample  
command,eliminatingproblemswithasynchronousclock  
noise found in competitive devices. A separate convert  
start input and a data ready signal (BUSY) ease connec-  
tions to FIFOs, DSPs and microprocessors.  
Digital Signal Processing  
Multiplexed Data Acquisition Systems  
Audio and Telecom Processing  
Spectrum Analysis  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
U
O
TYPICAL APPLICATI  
Single 5V Supply, 500kHz, 12-Bit Sampling A/D Converter  
Effective Bits and Signal-to-(Noise + Distortion)  
vs Input Frequency  
LTC1278-5  
5V  
1
2
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
ANALOG INPUT  
(0V TO 5V)  
12  
11  
10  
9
74  
68  
62  
56  
A
V
AV  
DD  
IN  
2.42V  
REFERENCE  
OUTPUT  
+
V
0.1µF  
REF  
SS  
BUSY  
D11(MSB) CS  
10µF  
+
3
0.1µF  
AGND  
NYQUIST  
FREQUENCY  
10µF  
4
µP CONTROL  
5
LINES  
8
D10  
D9  
RD  
CONVST  
SHDN  
6
CONVERSION START INPUT  
POWER DOWN INPUT  
7
7
6
D8  
8
5
D7  
DV  
DD  
9
D6  
D0  
D1  
D2  
D3  
4
10  
11  
12  
12-BIT  
PARALLEL  
BUS  
3
D5  
2
D4  
1
DGND  
f
= 500kHz  
SAMPLE  
0
10k  
100k  
INPUT FREQUENCY (Hz)  
1M 2M  
LT1278 G4  
LTC1278 • TA01  
1
1234567...16

中文翻译

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LTC1278-4CSW 替代型号

型号 品牌 替代类型 描述 数据表
LTC1278-4CSW#TRPBF Linear

完全替代

 LTC1278 - 12-Bit, 500ksps Sampling A/D Converter with Shutdown; Package: SO; Pins: 24; Tem
LTC1278-4ISW#TRPBF Linear

完全替代

 LTC1278 - 12-Bit, 500ksps Sampling A/D Converter with Shutdown; Package: SO; Pins: 24; Tem

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 		LTC1278 - 12-Bit, 500ksps Sampling A/D Converter with Shutdown; Package: SO; Pins: 24; Tem
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LTC1278-4IN#PBF Linear

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 		LTC1278 - 12-Bit, 500ksps Sampling A/D Converter with Shutdown; Package: PDIP; Pins: 24; T
LTC1278-4IS ETC

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 		Analog-to-Digital Converter， 12-Bit
LTC1278-4ISW Linear

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 		12-Bit, 500ksps Sampling A/D Converter with Shutdown
LTC1278-4ISW#TRPBF Linear

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 		LTC1278 - 12-Bit, 500ksps Sampling A/D Converter with Shutdown; Package: SO; Pins: 24; Tem
LTC1278-5 Linear

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LTC1278-5C Linear

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 		12-Bit, 500ksps Sampling A/D Converter with Shutdown

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