參數(shù)資料
型號: MAX1421ECM+TD
廠商: Maxim Integrated Products
文件頁數(shù): 7/17頁
文件大?。?/td> 0K
描述: IC ADC 12BIT 40MSPS 48LQFP
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 2,000
位數(shù): 12
采樣率(每秒): 40M
數(shù)據(jù)接口: 并聯(lián)
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 214mW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 48-LQFP
供應(yīng)商設(shè)備封裝: 48-LQFP(7x7)
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 1 個差分,雙極
Signal-to-Noise Plus Distortion (SINAD)
SINAD is computed by taking the ratio of the RMS sig-
nal to all spectral components minus the fundamental
and the DC offset.
Effective Number of Bits (ENOB)
ENOB specifies the dynamic performance of an ADC at
a specific input frequency and sampling rate. An ideal
ADC’s error consists of quantization noise only. ENOB
is computed from:
ENOB
SINAD
-
=
176
602
.
MAX1421
12-Bit, 40Msps, 3.3V, Low-Power ADC
with Internal Reference
______________________________________________________________________________________
15
MAX1421
T1
N.C.
VIN
6
1
5
2
4
3
22pF
1nF
0.1
F
0.22
F
25
25
MINICIRCUITS
T1–1T–KK81
INN
INP
CML
44pF
*
*REPLACE BOTH 22pF CAPS WITH 44pF BETWEEN
INP AND INN TO IMPROVE DYNAMIC PERFORMANCE.
Figure 8. Using a Transformer for AC-Coupling
MAX1421
1nF
1k
100
100
CIN
22pF
CML
CIN
22pF
INP
INN
0.1
F
RISO
50
RISO
50
0.22
F
VIN
MAX4108
Figure 9. Single-Ended AC-Coupled Input Signal
HOLD
ANALOG
INPUT
SAMPLED
DATA (T/H)
T/H
tAD
tAJ
TRACK
CLK
Figure 10. Track-and-Hold Aperture Timing
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