- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385520 > MAX1101 (Maxim Integrated Products, Inc.) Single-Chip, 8-Bit CCD Digitizer with Clamp and 6-Bit PGA PDF資料下載
參數(shù)資料
| 型號： | MAX1101 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Single-Chip, 8-Bit CCD Digitizer with Clamp and 6-Bit PGA |
| 中文描述： | 單芯片，8位數(shù)字化儀與防治荒漠化公約鉗位和6位美國PGA |
| 文件頁數(shù)： | 10/12頁 |
| 文件大?。?/td> | 110K |
| 代理商： | MAX1101 |
M
S ingle-Chip, 8-Bit CCD Digitizer
with Clamp and 6-Bit PGA
10
______________________________________________________________________________________
pixel during the CCD output waveform’s reset phase. To
compensate for the CCD black level, CLAMP is activated
during the black-pixel portion of the linear array, as
shown in Figure 10. Each of these modes requires a dif-
ferent value of C
EXT
, as described in the following sec-
tion.
Choosing C
EXT
for CDS
In CDS applications, C
EXT
= 4nF. This value is the best
compromise to minimize errors due to the CLAMP switch
resistance/C
EXT
time constant and switch charge injec-
tion. The following equation represents the error due to
incomplete charging of C
EXT
during integration time:
ε
=
V
RESET
x e
-t/RC
where
V
RESET
= the maximum change in reset level
from one pixel to the next, t = CLAMP pulse width, and
R = CLAMP switch resistance (150
max). At a sample
rate of 670kHz, with t = 750nsec, a 4nF capacitor
removes at least 70% of the change in reset voltage
level. Typically, R = 60
, which corresponds to a 96%
cancellation of the change in reset level.
The offset due to switch charge injection is represented
by 13pC / 4nF = 3mV. Note that this error will behave
like any DC offset; that is, it will be constant from pixel
to pixel.
Choosing C
EXT
in Black-Level Compensation
In activating CLAMP once per line to compensate for the
CCD black level, the recommended value of C
EXT
is
governed by the following equations:
C
EXT
≥
12nF
and
C
EXT
≤
N x t x 760pF/μsec
where N is the number of light-shielded cells, and t is
the width of the CLAMP pulse in μsec.
The second equation ensures that the time constant
formed by R x C
EXT
is small enough that the black level
is captured to within 0.5mV during the dark pixel
phase. For example, in an array with 27 dark pixels at a
670kHz sample rate, with t = 750nsec, the second
equation becomes C
EXT
≤
15nF. Capacitors smaller
than 12nF can be used; however, offset increases due
to switch charge injection, as explained in the section
Choosing C
EXT
for CDS.
11. . .111
DIGITAL
OUTPUT
11. . .110
11. . .101
100. . .000
00. . .111
00. . .110
00. . .101
00. . .100
00. . .011
00. . .010
00. . .001
00. . .000
249
FS
251
FS
124
FS
23
FS
-3
256
V
VIDEO
= VOLTAGE DIFFERENCE BETWEEN THE
VIDEOLEVEL AND THE PRE-CHARGE (RESET) LEVEL.
V
FS
-4
FS
21
FS
-1
FS
22
FS
-2
FS
250
FS
PGA
V
FS
=V
REF+
- V
REF-
V
VIDEO
Figure 11. Transfer Function for CCDIN
Figure 12. Transfer Function for AIN
111. . . . 111
DIGITAL
OUTPUT
111. . . . 110
111. . . . 101
100. . . 000
000. . . 011
000. . . 010
000. . . 001
000. . . 000
V
REF-
253
FS
255
FS
23
FS
21
FS
22
FS
24
FS
254
FS
V
FS
= V
REF+
- V
REF-
V
AIN_
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX1101CWG | Single-Chip, 8-Bit CCD Digitizer with Clamp and 6-Bit PGA |
| MAX11041 | Wired Remote Controllers |
| MAX110 | Low-Cost, 2-Channel, 4-Bit Serial ADCs(±5V，2通道，±14位串行模數(shù)轉(zhuǎn)換器) |
| MAX1126 | Quad, 12-Bit, 40Msps, 1.8V ADC with Serial LVDS Outputs |
| MAX1126EGK | Quad, 12-Bit, 40Msps, 1.8V ADC with Serial LVDS Outputs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX11014 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Automatic RF MESFET Amplifier Drain-Current Controllers |
| MAX11014_08 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Automatic RF MESFET Amplifier Drain-Current Controllers |
| MAX11014BGTM | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Automatic RF MESFET Amplifier Drain-Current Controllers |
| MAX11014BGTM+ | 功能描述:特殊用途放大器 Auto RF MESFET Amp Drain-Current Cntrlr RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel |
| MAX11014BGTM+T | 功能描述:射頻放大器 Auto RF MESFET Amp Drain-Current Cntrlr RoHS:否 制造商:Skyworks Solutions, Inc. 類型:Low Noise Amplifier 工作頻率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 輸出截獲點:37.5 dBm 功率增益類型:32 dB 噪聲系數(shù):0.85 dB 工作電源電壓:5 V 電源電流:125 mA 測試頻率:2.6 GHz 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 封裝:Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。