參數(shù)資料
型號: LTC1414IGN#PBF
廠商: Linear Technology
文件頁數(shù): 1/20頁
文件大?。?/td> 0K
描述: IC A/D CONV 14BIT SAMPLNG 28SSOP
標準包裝: 49
位數(shù): 14
采樣率(每秒): 2.2M
數(shù)據(jù)接口: 并聯(lián)
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 230mW
電壓電源: 雙 ±
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 28-SSOP(0.154",3.90mm 寬)
供應商設(shè)備封裝: 28-SSOP
包裝: 管件
輸入數(shù)目和類型: 2 個單端,雙極;1 個差分,雙極
1
LTC1414
14-Bit, 2.2Msps,
Sampling A/D Converter
Effective Bits and Signal-to-Noise + Distortion
vs Input Frequency
14-BIT ADC
14
5V
OPTIONAL 3V
LOGIC SUPPLY
10
F
AVDD
DVDD
OVDD
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
VSS
10
F
10
F
VREF
COMP
AIN
AIN
+
1
F
INPUT FREQUENCY (Hz)
EFFECTIVE
BITS
S/(N
+
D)
(dB)
10k
100k
1M
10M
1414 TA02
1k
14
13
12
11
10
9
8
7
6
5
4
3
2
86
80
74
68
fSAMPLE = 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.
s
Sample Rate: 2.2Msps
s
Outstanding Spectral Purity:
80dB S/(N + D) and 95dB SFDR at 100kHz
78dB S/(N + D) and 84dB SFDR at Nyquist
s
Ultralow Distortion with Single-Ended or
Differential Inputs
s
±2.5V Bipolar Input Range Eliminates Level Shifting
and Rail-to-Rail Op Amp Requirements
s
Easy Hookup for External or Internal Reference
s
No Pipeline Delay
s
Power Dissipation: 175mW on
±5V Supplies
s
28-Pin Narrow SSOP Package
, LTC and LT are registered trademarks of Linear Technology Corporation.
FEATURES
DESCRIPTIO
U
s
Telecommunications
s
Digital Signal Processing
s
Multiplexed Data Acquisition Systems
s
High Speed Data Acquisition
s
Spectrum Analysis
s
Imaging Systems
APPLICATIO S
U
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