- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄17026 > EVAL-AD976CB (Analog Devices Inc)BOARD EVAL FOR AD976 PDF資料下載
參數(shù)資料
| 型號(hào)： | EVAL-AD976CB |
| 廠商： | Analog Devices Inc |
| 文件頁(yè)數(shù)： | 15/16頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | BOARD EVAL FOR AD976 |
| 標(biāo)準(zhǔn)包裝： | 1 |
| ADC 的數(shù)量： | 1 |
| 位數(shù)： | 16 |
| 采樣率（每秒）： | 100k |
| 數(shù)據(jù)接口： | 并聯(lián) |
| 輸入范圍： | ±10 V |
| 在以下條件下的電源（標(biāo)準(zhǔn)）： | 100mW @ 100kSPS |
| 工作溫度： | -40°C ~ 85°C |
| 已用 IC / 零件： | AD976 |
| 已供物品： | 板，CD |
| 相關(guān)產(chǎn)品： | AD976ACRSZ-ND - IC ADC 16BIT 200KSPS 28SSOP AD976ACRZ-ND - IC ADC 16BIT 200KSPS 28SOIC AD976CRZ-ND - IC ADC 16BIT 100KSPS 28SOIC AD976CRSZ-ND - IC ADC 16BIT 100KSPS 28SSOP AD976CNZ-ND - IC ADC 16BIT 100KSPS 28DIP AD976BRSZ-ND - IC ADC 16BIT 100KSPS 28SSOP AD976BNZ-ND - IC ADC 16BIT 100KSPS 28-DIP AD976ACNZ-ND - IC ADC 16BIT 200KSPS 28DIP AD976AARSZ-ND - IC ADC 16BIT 200KSPS 28SSOP AD976ARZRL-ND - IC ADC 16BIT 100KSPS 28SOIC 更多... |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)當(dāng)前第15頁(yè)第16頁(yè)
AD976/AD976A
–8–
REV. C
DATA
VALID
t
6
t
3
t
1
t
10
t
9
CONVERT
ACQUIRE
MODE
DATA
BUS
NOT
VALID
HI-Z
DATA
VALID
BUSY
R/
C
t
7
t
8
t
11
t
13
ACQUIRE
t
2
t
4
PREVIOUS
DATA VALID
t
5
PREVIOUS
DATA VALID
t
14
HI-Z
Figure 2. Conversion Timing with Outputs Enabled After Conversion (CS Tied Low)
MODE
BUSY
R/
C
DATA
BUS
CS
t
6
t
12
t
1
CONVERT
ACQUIRE
HI-Z
DATA VALID
t
7
ACQUIRE
t
9
t
12
t
12
t
12
t
1
t
3
t
4
t
14
HI-Z
Figure 3. Using CS to Control Conversion and Read Timing
CONVERSION CONTROL
The AD976/AD976A is controlled by two signals: R/C and CS,
as shown in Figures 2 and 3. To initiate a conversion and place
the sample/hold circuit into the hold state, both the R/C and CS
signals must be brought low for no less than 50 ns. Once the
conversion process begins, the BUSY signal will go Low until
the conversion is complete. At the end of a conversion, BUSY
will return High, and the resulting valid data will be available on
the data bus. On the first conversion after the AD976/AD976A
is powered up, the DATA output will be indeterminate.
The AD976/AD976A exhibits two modes of conversion. In the
mode demonstrated in Figure 2, conversion timing is controlled
by a negative-going R/C signal, at least 50 ns wide. In this mode
the CS pin is always tied low, and the only limit placed on how
long the R/C signal can remain low is the desired sampling rate.
Less than 83 ns after the initiation of a conversion, the BUSY
signal will be brought low and remain low until the conversion is
complete and the output shift registers have been updated with
the new Binary Twos Complement data.
Figure 3 demonstrates the AD976/AD976A conversion timing,
using CS to control both the conversion process and the reading
of output data. To operate in this mode, the R/C signal should
be brought low no less than 10 ns before the falling edge of a CS
pulse (50 ns wide) is applied to the ADC. Once these two pulses
are applied, BUSY will go low and remain low until a conver-
sion is complete. After a maximum of 4
s (AD976A only),
BUSY will again return high, and parallel data will be valid on
the ADC outputs. To achieve the maximum 100 kHz/200 kHz
throughput rate of the part, the negative going R/C and CS
control signals should be applied every 5
s (AD976A). It should
also be noted that although all R/C and CS commands will be
ignored once a conversion has begun, these inputs can be
asserted during a conversion; i.e., a read during conversion can
be performed. Voltage transients on these inputs could feed
through to the analog circuitry and affect conversion results.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| VE-BWZ-EW | CONVERTER MOD DC/DC 2V 40W |
| EVAL-AD976ACB | BOARD EVAL FOR AD976A |
| VE-BWY-EX | CONVERTER MOD DC/DC 3.3V 49.5W |
| 0210490346 | CABLE JUMPER 1.25MM .051M 28POS |
| GMM10DRYN | CONN EDGECARD 20POS DIP .156 SLD |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EVAL-AD977ACB | 功能描述:BOARD EVAL FOR AD977A RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 評(píng)估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標(biāo)準(zhǔn)）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件 |
| EVAL-AD977CB | 功能描述:BOARD EVAL FOR AD977 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 評(píng)估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標(biāo)準(zhǔn)）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件 |
| EVAL-AD9830EBZ | 功能描述:BOARD EVALUATION AD9830 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評(píng)估演示板和套件 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 主要目的:電信，線路接口單元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要屬性:T1/J1/E1 LIU 次要屬性:- 已供物品:板，電源，線纜，CD 其它名稱:82EBV2081 |
| EVAL-AD9831EB | 制造商:Analog Devices 功能描述: |
| EVAL-AD9831EBZ | 功能描述:BOARD EVALUATION AD9831 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評(píng)估演示板和套件 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 主要目的:電信，線路接口單元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要屬性:T1/J1/E1 LIU 次要屬性:- 已供物品:板，電源，線纜，CD 其它名稱:82EBV2081 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。