công cụ tìm kiếm bảng dữ liệu linh kiện điện tử
  Vietnamese  ▼
ALLDATASHEET.VN

X  

ML2252BCQ bảng dữ liệu(PDF) 8 Page - Micro Linear Corporation

tên linh kiện ML2252BCQ
Giải thích chi tiết về linh kiện  關P Compatible 8-Bit A/D Converters with 2- or 8-Channel Multiplexer
Download  13 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
nhà sản xuất  MICRO-LINEAR [Micro Linear Corporation]
Trang chủ  http://www.microlinear.com
Logo MICRO-LINEAR - Micro Linear Corporation

ML2252BCQ bảng dữ liệu(HTML) 8 Page - Micro Linear Corporation

Back Button ML2252BCQ Datasheet HTML 4Page - Micro Linear Corporation ML2252BCQ Datasheet HTML 5Page - Micro Linear Corporation ML2252BCQ Datasheet HTML 6Page - Micro Linear Corporation ML2252BCQ Datasheet HTML 7Page - Micro Linear Corporation ML2252BCQ Datasheet HTML 8Page - Micro Linear Corporation ML2252BCQ Datasheet HTML 9Page - Micro Linear Corporation ML2252BCQ Datasheet HTML 10Page - Micro Linear Corporation ML2252BCQ Datasheet HTML 11Page - Micro Linear Corporation ML2252BCQ Datasheet HTML 12Page - Micro Linear Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 8 / 13 page
background image
ML2252, ML2259
8
Another advantage of the capacitor array approach used in
the ML2252 and ML2259 is the inherent sample-and-hold
function. This true S/H allows an accurate conversion to be
done on the input even if the analog signal is not stable.
Linearity and accuracy are maintained for analog signals up
to 1/2 the sampling frequency. As a result, input signals up
to 50kHz can be converted without degradation in linearity
or accuracy.
The sequence of events during a conversion is shown in
figure 5. The rising edge of a START pulse resets the internal
registers and initiates a conversion on the next rising edge
of CLK providing that (tSS) start pulse setup time is satisfied.
If this setup time is not met, start conversion will have an
uncertainty of one clock pulse. The input is then sampled for
the next half CLK period until EOC goes low. EOC goes low
on the falling edge of the next CLK pulse indicating that the
conversion is now beginning. The actual conversion now
takes place for the next eight CLK pulses, one bit for each
CLK pulse. After the conversion is done, the data is updated
on DB0–DB7 and EOC goes high on the rising edge of the
9th CLK pulse, indicating that the conversion has been
completed and data is valid on DB0–DB7. The data will
stay valid on DB0–DB7 until the next conversion updates
the data word on the next rising edge of EOC.
A conversion can be interrupted and restarted at any time
by a new START pulse.
1.3 ANALOG INPUTS AND SAMPLE/HOLD
The ML2252 and ML2259 have a true sample-and-hold
circuit which samples both the selected input and ground
simultaneously. These analog to digital converters can
reject AC common mode signals from DC–50kHz as well
as maintain linearity for signals from DC–50kHz.
The plot in Figure 6 shows a 2048 point FFT of the
ML2259 converting a 50kHz, 0 to 5V, low distortion sine
wave input. The ML2252 and ML2259 sample and
digitize, at their specified accuracy, dynamic input
signals with frequency components up to the Nyquist
frequency (one-half the sampling rate). The output spectra
yields precise measurements of input signal level, harmonic
components, and signal to noise ratio up to the 8-bit level.
The near ideal signal to noise ratio is maintained
independent of increasing analog input frequencies to
50kHz.
The signal at the analog input is sampled during the
interval when the sampling switch is open prior to
conversion start. The sampling window (S/H acquisition
time) is one half CLK period long and occurs one half CLK
period after START goes low. When the sampling switch
closes at the start of the S/H acquisition time, 8pF of
capacitance is thrown onto the analog input. One half
CLK period later, the sampling switch opens, the signal
present at analog input is stored and conversion starts.
Since any error on the analog input at the end of the S/H
acquisition time will cause additional conversion error,
care should be taken to insure adequate settling and
charging time from the source. If more charging or
settling time is needed to reduce these analog input
errors, a longer CLK period can be used.
Each analog input has dual diodes to the supply rails, and
a minimum of ±25mA (±100mA typically) can be
injected into each analog input without causing latchup.
Figure 5. Timing Diagram
1/fCLK
tSS
tWS
tWALE
tH
tS
tIH, tOH
CLK
START
ALE
ADDR0–ADDR2
EOC
DB0–DB7
OE
12
4
35
6
7
8
9
PREVIOUS DATA
DATA
tC
tEOC
tHI, tHO


Số phần tương tự - ML2252BCQ

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
logo
OKI electronic componet...
ML2252 OKI-ML2252 Datasheet
199Kb / 31P
   2-Channel Mixing Oki ADPCM Algorithm-Based Speech Synthesis LSI
ML2252-XXXGA OKI-ML2252-XXXGA Datasheet
623Kb / 36P
   2-Channel Mixing Oki ADPCM Algorithm-Based Speech Synthesis LSI
More results

Mô tả tương tự - ML2252BCQ

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
logo
National Semiconductor ...
ADC0816 NSC-ADC0816_07 Datasheet
344Kb / 14P
   8-Bit 關P Compatible A/D Converters with 16-Channel Multiplexer
logo
Texas Instruments
ADC0809CCN TI1-ADC0809CCN Datasheet
494Kb / 19P
[Old version datasheet]   ADC0808/ADC0809 8-Bit 關P Compatible A/D Converters with 8-Channel Multiplexer
ADC0808-N TI1-ADC0808-N_14 Datasheet
538Kb / 20P
[Old version datasheet]   ADC0808/ADC0809 8-Bit 關P Compatible A/D Converters with 8-Channel Multiplexer
ADC0844 TI1-ADC0844 Datasheet
2Mb / 24P
[Old version datasheet]   8-Bit 關P Compatible A/D Converters with Multiplexer Options
logo
Micro Linear Corporatio...
ML2258 MICRO-LINEAR-ML2258 Datasheet
169Kb / 12P
   關P Compatible 8-Bit A/D Converter with 8-Channel Multiplexer
logo
Texas Instruments
ADC0808-N TI1-ADC0808-N_17 Datasheet
533Kb / 19P
[Old version datasheet]   8-Bit Compatible A/D Converters with 8-Channel Multiplexer
logo
National Semiconductor ...
ADC0808 NSC-ADC0808 Datasheet
264Kb / 14P
   8-Bit uP Compatible A/D Converters with 8-Channel Multiplexer
ADC0808 NSC-ADC0808_07 Datasheet
394Kb / 16P
   8-Bit uP Compatible A/D Converters with 8-Channel Multiplexer
ADC0808 NSC-ADC0808_95 Datasheet
348Kb / 14P
   8-Bit uP Compatible A/D Converters with 8-Channel Multiplexer
logo
Texas Instruments
ADC0816 TI1-ADC0816_14 Datasheet
541Kb / 19P
[Old version datasheet]   ADC0816/ADC0817 8-Bit 關P Compatible A/D Converters with16-Channel Multiplexer
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13


bảng dữ liệu tải về

Go To PDF Page


Link URL




Chính sách bảo mật
ALLDATASHEET.VN
Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không?  [ DONATE ] 

Alldatasheet là   |   Quảng cáo   |   Liên lạc với chúng tôi   |   Chính sách bảo mật   |   Trao đổi link   |   Tìm kiếm theo nhà sản xuất
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com