- 您現在的位置：買賣IC網 > PDF目錄373920 > AD7851 (Analog Devices, Inc.) 14-Bit 333 kSPS Serial A/D Converter PDF資料下載
參數資料
| 型號： | AD7851 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 14-Bit 333 kSPS Serial A/D Converter |
| 中文描述： | 14位333 kSPS的串行A / D轉換器 |
| 文件頁數： | 5/36頁 |
| 文件大小： | 435K |
| 代理商： | AD7851 |
第1頁第2頁第3頁第4頁當前第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁
–5–
REV. A
AD7851
T Y PICAL T IMING DIAGRAMS
Figures 2 and 3 show typical read and write timing diagrams.
Figure 2 shows the reading and writing after conversion in In-
terface Modes 2 and 3. T o attain the maximum sample rate of
285 kHz in Interface Modes 2 and 3, reading and writing must
be performed during conversion. Figure 3 shows the timing dia-
gram for Interface Modes 4 and 5 with sample rate of 285 kHz.
At least 330 ns acquisition time must be allowed (the time from
the falling edge of BUSY to the next rising edge of
CONVST
)
before the next conversion begins to ensure that the part is
settled to the 14-bit level. If the user does not want to provide
the
CONVST
signal, the conversion can be initiated in software
by writing to the control register.
1.6mA
+2.1V
200μA
C
L
50pF
TO
OUTPUT
PIN
I
OL
I
OH
Figure 1. Load Circuit for Digital Output Timing
Specifications
DB15
DB0
DB11
POLARITY PIN LOGIC HIGH
SYNC
(I/P)
SCLK (I/P)
t
3
BUSY (O/P)
CONVST
(I/P)
t
2
t
5
t
11
t
6
t
9
t
10
1
5
6
16
t
12
DOUT (O/P)
DB0
DB11
t
8
DIN (I/P)
3-STATE
3-STATE
DB15
t
CONVERT
t
CONVERT
= 3.25μs MAX, t
= 100ns MIN,
t
5
7
= 30ns MIN
t
1
t
6
t
7
Figure 2. AD7851 Timing Diagram (Typical Read and Write Operation for Interface Modes 2, 3)
POLARITY PIN LOGIC HIGH
SYNC (
O/P)
SCLK (O/P)
t
4
BUSY (O/P)
CONVST
(I/P)
t
2
t
5
t
11
t
12
t
9
t
10
1
5
6
16
DOUT (O/P)
DB0
DB11
t
8
DIN (I/P)
DB15
DB0
3-STATE
DB11
3-STATE
DB15
t
CONVERT
t
CONVERT
= 3.25μs MAX, t
= 100ns MIN,
t
5
7
= 30ns MIN
t
1
t
6
t
7
Figure 3. AD7851 Timing Diagram (Typical Read and Write Operation for Interface Modes 4, 5)
相關PDF資料 |
PDF描述 |
|---|---|
| AD7851AN | 14-Bit 333 kSPS Serial A/D Converter |
| AD7851AR | 14-Bit 333 kSPS Serial A/D Converter |
| AD7851ARS | 14-Bit 333 kSPS Serial A/D Converter |
| AD7851KN | 14-Bit 333 kSPS Serial A/D Converter |
| AD7851KR | 14-Bit 333 kSPS Serial A/D Converter |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AD7851AN | 制造商:Analog Devices 功能描述:ADC Single SAR 333ksps 14-bit Serial 24-Pin PDIP 制造商:Rochester Electronics LLC 功能描述:14 BIT SELF CALIBRATION ADC I.C. - Bulk |
| AD7851ANZ | 功能描述:IC ADC 14BIT SRL 333KSPS 24-DIP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 位數:12 采樣率（每秒）:3M 數據接口:- 轉換器數目:- 功率耗散（最大）:- 電壓電源:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應商設備封裝:SOT-23-6 包裝:帶卷 (TR) 輸入數目和類型:- |
| AD7851AR | 制造商:Analog Devices 功能描述:ADC Single SAR 333ksps 14-bit Serial 24-Pin SOIC W 制造商:Rochester Electronics LLC 功能描述:14 BIT SELF CALIBRATION ADC I.C. - Bulk |
| AD7851AR-REEL | 制造商:Analog Devices 功能描述:ADC Single SAR 333ksps 14-bit Serial 24-Pin SOIC W T/R |
| AD7851ARS | 制造商:Analog Devices 功能描述:ADC Single SAR 333ksps 14-bit Serial 24-Pin SSOP 制造商:Analog Devices 功能描述:IC 14-BIT ADC |
發布緊急采購，3分鐘左右您將得到回復。