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LTC1410 PDF预览

LTC1410

更新时间: 2024-11-25 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 151K
描述
12-Bit, 1.25Msps Sampling A/D Converter with Shutdown

LTC1410 数据手册

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LTC1410  
12-Bit, 1.25Msp s Sa m p ling  
A/D Co nve rte r with Shutd o wn  
U
DESCRIPTIO  
EATURE  
S
F
The LTC®1410 is a 0.65µs, 1.25Msps, 12-bit sampling  
A/D converter that draws only 160mW from ±5V supplies.  
This easy-to-use device includes a high dynamic range  
sample-and-hold, a precision reference and requires no  
external components. Two digitally selectable power shut-  
down modes provide flexibility for low power systems.  
1.25Msps Sample Rate  
Power Dissipation: 160mW  
71dB S/(N + D) and 82dB THD at Nyquist  
No Pipeline Delay  
Nap (7mW) and Sleep (10µW) Shutdown Modes  
Operates with Internal 15ppm/°C Reference  
or External Reference  
True Differential Inputs Reject Common Mode Noise  
20MHz Full Power Bandwidth Sampling  
±2.5V Bipolar Input Range  
The LTC1410s full-scale input range is ±2.5V. Maximum  
DC specifications include±1LSB INL and±1LSB DNL over  
temperature. Outstanding AC performance includes 71dB  
S/(N + D) and 82dB THD at the Nyquist input frequency of  
625kHz.  
28-Pin SO Wide Package  
O U  
Theuniquedifferentialinputsample-and-holdcanacquire  
single-ended or differential input signals up to its 20MHz  
bandwidth. The 60dB common mode rejection allows  
users to eliminate ground loops and common mode noise  
by measuring signals differentially from the source.  
PPLICATI  
S
A
Telecommunications  
Digital Signal Processing  
Multiplexed Data Acquisition Systems  
High Speed Data Acquisition  
Spectrum Analysis  
The ADC has a µP compatible, 12-bit parallel output port.  
There is no pipeline delay in the conversion results. A  
separateconvertstartinputandadatareadysignal(BUSY)  
ease connections to FIFOs, DSPs and microprocessors.  
Imaging Systems  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
U
O
TYPICAL APPLICATI  
Effective Bits and Signal-to-(Noise + Distortion)  
vs Input Frequency  
Complete 1.25MHz, 12-Bit Sampling A/D Converter  
LTC1410  
5V  
DIFFERENTIAL  
ANALOG INPUT  
(–2.5V TO 2.5V)  
1
2
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
12  
10  
8
74  
68  
62  
56  
50  
+A  
AV  
DD  
IN  
+
–5V  
–A  
IN  
DV  
DD  
0.1µF  
10µF  
3
NYQUIST  
2.50V  
OUTPUT  
V
REF  
V
SS  
V
REF  
4
0.1µF  
10µF  
REFCOMP  
AGND  
BUSY  
CS  
+
5
0.1µF  
10µF  
6
D11(MSB) CONVST  
µP CONTROL  
LINES  
7
6
D10  
D9  
RD  
SHDN  
NAP/SLP  
OGND  
D0  
8
9
4
D8  
10  
11  
12  
13  
14  
D7  
12-BIT  
PARALLEL  
BUS  
2
D6  
f
= 1.25MHz  
SAMPLE  
D5  
D1  
0
D4  
D2  
1k  
10k  
100k  
1M  
10M  
DGND  
D3  
INPUT FREQUENCY (Hz)  
LTC1410 • TA02  
1410 TA01  
1

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