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LTC1414CGN Datasheet

  • LTC1414CGN

  • 14-Bit, 2.2Msps, Sampling A/D Converter

  • 20頁(yè)

  • LINER

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LTC1414
14-Bit, 2.2Msps,
Sampling A/D Converter
FEATURES
s
s
DESCRIPTIO
s
s
s
s
s
s
Sample Rate: 2.2Msps
Outstanding Spectral Purity:
80dB S/(N + D) and 95dB SFDR at 100kHz
78dB S/(N + D) and 84dB SFDR at Nyquist
Ultralow Distortion with Single-Ended or
Differential Inputs
鹵2.5V
Bipolar Input Range Eliminates Level Shifting
and Rail-to-Rail Op Amp Requirements
Easy Hookup for External or Internal Reference
No Pipeline Delay
Power Dissipation: 175mW on
鹵5V
Supplies
28-Pin Narrow SSOP Package
The LTC
廬
1414 is a 14-bit, 2.2Msps, sampling A/D con-
verter which draws only 175mW from
鹵5V
supplies. This
high performance ADC includes a high dynamic range
sample-and-hold, a precision reference and requires no
external components.
The LTC1414鈥檚 high performance sample-and-hold has a
full-scale input range of
鹵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.
APPLICATIO S
s
s
s
s
s
s
Telecommunications
Digital Signal Processing
Multiplexed Data Acquisition Systems
High Speed Data Acquisition
Spectrum Analysis
Imaging Systems
TYPICAL APPLICATIO
5V
10碌F
AV
DD
LTC1414
DV
DD
OPTIONAL 3V
LOGIC SUPPLY
Effective Bits and Signal-to-Noise + Distortion
vs Input Frequency
14
86
80
74
68
S/(N + D) (dB)
13
12
11
OV
DD
S/H
A
IN 鈥?/div>
4.0625V
COMP
10碌F
V
REF
1碌F
V
SS
10碌F
鈥?5V
BUFFER
2k
14-BIT ADC
OUTPUT
BUFFERS
鈥?/div>
鈥?/div>
鈥?/div>
EFFECTIVE BITS
A
IN +
14
D13 (MSB)
10
9
8
7
6
5
4
D0 (LSB)
2.5V
REFERENCE
AGND
TIMING AND
LOGIC
DGND
OGND
BUSY
CONVST
3
2
1k
f
SAMPLE
= 2.2MHz
10k
100k
1M
INPUT FREQUENCY (Hz)
10M
1414 TA02
1414 TA01
U
U
U
1

LTC1414CGN 產(chǎn)品屬性

  • LTC1414

  • 49

  • 集成電路 (IC)

  • 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器

  • -

  • 14

  • 2.2M

  • 并聯(lián)

  • 1

  • 230mW

  • 雙 ±

  • 0°C ~ 70°C

  • 表面貼裝

  • 28-SSOP（0.154"，3.90mm 寬）

  • 28-SSOP

  • 管件

  • 2 個(gè)單端，雙極；1 個(gè)差分，雙極

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