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LTC1415

更新时间： 2023-12-20 18:44:18
品牌 Logo 应用领域
亚德诺 - ADI 转换器
页数 文件大小 规格书
24页 329K
描述
12 位、1.25Msps、55mW 采样 A/D 转换器

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中文翻译

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LTC1415 数据手册

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LTC1415  
12-Bit, 1.25Msps, 55mW  
Sampling A/D Converter  
U
DESCRIPTIO  
EATURE  
1.25Msps Sample Rate  
Single 5V Supply  
Power Dissipation: 55mW  
Nap and Sleep Power Shutdown Modes  
S
F
The LTC®1415 is a 700ns, 1.25Msps, 12-bit sampling  
A/D converter that draws only 55mW from a single 5V  
supply. This easy-to-use device includes a high dynamic  
rangesample-and-hold,precisionreferenceandatrimmed  
internal clock. Two power shutdown modes provide flex-  
ibility for low power systems.  
■
■
■
■
■
■
■
■
■
■
±
0.35LSB INL and ±0.25LSB DNL  
72dB S/(N + D) and 80dB THD at 100kHz  
External or Internal Reference Operation  
True Differential Inputs Reject Common Mode Noise  
Input Range: 4.096V (1mV/LSB)  
The LTC1415’s full-scale input range is 4.096V. Low  
linearity errors ±0.35LSB INL, ±0.25LSB DNL make it  
ideal for imaging systems. Outstanding AC performance  
includes 72dB S/(N + D) and 80dB THD with an input  
frequency of 100kHz.  
28-Pin SSOP and SO Packages  
O U  
PPLICATI  
A
S
Theuniquedifferentialinputsample-and-holdcanacquire  
single-ended or differential input signals up to its 18MHz  
bandwidth. The 60dB common mode rejection allows  
users to eliminate ground loops and common mode noise  
by measuring signals differentially from the source.  
■
■
■
■
■
High Speed Data Acquisition  
Imaging Systems  
Digital Signal Processing  
Multiplexed Data Acquisition Systems  
Telecommunications  
The ADC has a µP compatible, 12-bit parallel output port.  
There is no pipeline delay in the conversion results. A  
separate convert start input and data ready signal (BUSY)  
ease connections to FIFOs, DSPs and microprocessors. A  
separate output logic supply pin allows direct connection  
to 3V components.  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
U
O
TYPICAL APPLICATI  
1.25MHz, 12-Bit Sampling A/D Converter  
Effective Bits and Signal-to-(Noise + Distortion)  
vs Input Frequency  
LTC1415  
5V  
DIFFERENTIAL  
ANALOG INPUT  
(0V TO 4.096V)  
1
2
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
12  
11  
10  
9
74  
68  
62  
56  
+A  
–A  
AV  
DV  
OV  
IN  
IN  
DD  
DD  
DD  
10µF  
3
OUTPUT LOGIC  
2.50V  
OUTPUT  
NYQUIST  
FREQUENCY  
V
REF  
SUPPLY 3V OR 5V  
V
REF  
4
REFCOMP  
AGND  
BUSY  
CS  
5
8
10µF  
6
7
D11(MSB) CONVST  
µP CONTROL  
LINES  
7
6
D10  
D9  
RD  
SHDN  
NAP/SLP  
OGND  
D0  
8
5
9
4
D8  
10  
11  
12  
13  
14  
3
D7  
12-BIT  
PARALLEL  
BUS  
2
D6  
1
D5  
D1  
f
= 1.25Msps  
10k  
SAMPLE  
0
D4  
D2  
1k  
100k  
1M 2M  
DGND  
D3  
INPUT FREQUENCY (Hz)  
LTC1415 • TA02  
1415 TA01  
1
1234567...24

中文翻译

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 		LTC1415 - 12-Bit, 1.25Msps, 55mW Sampling A/D Converter; Package: SSOP; Pins: 28; Temperat

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