參數(shù)資料
型號(hào): LTC1414
廠商: Linear Technology Corporation
英文描述: 14-Bit, 2.2Msps, Sampling A/D Converter
中文描述: 14位,2.2Msps,采樣A / D轉(zhuǎn)換器
文件頁(yè)數(shù): 1/20頁(yè)
文件大?。?/td> 353K
代理商: LTC1414
1
LTC 1414
14-Bit, 2.2Msps,
Sampling A/D C onverter
Effective Bits and Signal-to-Noise + Distortion
vs Input Frequency
14
13
12
11
10
9
8
7
6
5
4
3
2
14-BIT ADC
14
5V
OPTIONAL 3V
LOGIC SUPPLY
10
μ
F
AV
DD
DV
DD
OV
DD
OGND
1414 TA01
DGND
D13 (MSB)
D0 (LSB)
BUSY
S/H
BUFFER
LTC1414
4.0625V
2k
–5V
2.5V
REFERENCE
TIMING AND
LOGIC
OUTPUT
BUFFERS
CONVST
AGND
V
SS
10
μ
F
10
μ
F
V
REF
1
μ
F
COMP
A
IN–
A
IN+
INPUT FREQUENCY (Hz)
E
S
10k
100k
1M
10M
1414 TA02
1k
86
80
74
68
f
SAMPLE
= 2.2MHz
TYPICAL APPLICATIO
U
The LTC
1414 is a 14-bit, 2.2Msps, sampling A/D con-
verter which draws only 175mW from
±
5V supplies. This
high performance ADC includes a high dynamic range
sample-and-hold, a precision reference and requires no
external components.
The LTC1414’s high performance sample-and-hold has a
full-scale input range of
±
2.5V. Outstanding AC perfor-
mance includes 80dB S/(N + D) and 95dB SFDR with a
100kHz input. The performance remains high at the Nyquist
input frequency of 1.1MHz with 78dB S/(N + D) and 84dB
SFDR.
The unique differential input sample-and-hold can acquire
single-ended or differential input signals up to its 40MHz
bandwidth. The 70dB common mode rejection can elimi-
nate ground loops and common mode noise by measuring
signal differentially from the source
The ADC has a microprocessor compatible, 14-bit parallel
output port. There is no pipline delay in the conversion
results.
, LTC and LT are registered trademarks of Linear Technology Corporation.
I
Sample Rate: 2.2Msps
I
Outstanding Spectral Purity:
80dB S/(N + D) and 95dB SFDR at 100kHz
78dB S/(N + D) and 84dB SFDR at Nyquist
I
Ultralow Distortion with Single-Ended or
Differential Inputs
I
±
2.5V Bipolar Input Range Eliminates Level Shifting
and Rail-to-Rail Op Amp Requirements
I
Easy Hookup for External or Internal Reference
I
No Pipeline Delay
I
Power Dissipation: 175mW on
±
5V Supplies
I
28-Pin Narrow SSOP Package
FEATURES
DESCRIPTIO
U
I
Telecommunications
I
Digital Signal Processing
I
Multiplexed Data Acquisition Systems
I
High Speed Data Acquisition
I
Spectrum Analysis
I
Imaging Systems
APPLICATIO S
U
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