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參數資料
| 型號： | AD7899 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Evaluation Board for 5V, 12-Bit, Serial 220kSPS ADC in 8-Pin Package |
| 中文描述： | 評估板為5V，12位，串行220kSPS ADC的8引腳封裝 |
| 文件頁數： | 2/12頁 |
| 文件大小： | 484K |
| 代理商： | AD7899 |
EVAL-AD7899CB
–2–
REV. 0
L ink and Switch Options
T here are 9 link options which must be set for the required operating setup before using the evaluation board. T he
functions of these options are outlined below.
L ink No.
F unction.
L K 1
T his link option selects the input range of the ADC. T he position of this link is determined by the input
range required by the user. Please refer to the AD7899 data sheet for more information.
When this link is in position "A" V
INB
is connected to V
.
When this link is in position "B" V
INB
is connected toAGND.
T his link selects the reference source for the AD7899.
When a link is in position "A" the AD780 is selected as the reference source.
When a link is in position "B" an external voltage applied to SK 7 is selected as the reference source.
When the link is removed completly the internal reference of the AD7899 is used as the reference source.
T his link selects the source of the +12V supply.
When this link is in position "A" an external +12V must be connected to J2-1.
When this link is in position "B" the EVAL-BOARD CONT ROLLER will provide the +12V supply
T his link selects the source of the VDD supply.
When this link is in position "A" an external +5V must be connected to J2-2.
When this link is in position "B" the EVAL-BOARD CONT ROLLER will provide the +5V supply
T his link selects the source of the -12V supply.
When this link is in position "A" an external -12V must be connected to J2-4.
When this link is in position "B" the EVAL-BOARD CONT ROLLER will provide the -12V supply
L K 2
L K 3
L K 4
L K 5
L K 6
T his link selects the source of the V
DRIVE
supply.
When this link is in position A the VDD supply is used as the V
supply.
When this link is in position B the DVDD supply of the EVAL-BOARD CONT ROLLER is used as the
V
supply.
When this link is in position C an external supply on SK 6 is used as the V
DRIVE
supply.
T his link is used to select the source of the Conversion Start signal.
When this link is in position "A" the CONVST signal is generated by the EVAL-BOARD CONT ROL-
L E R .
When this link is in position "B" the CONVST signal is generated by an external signal connected to SK 2.
T his link selects the source of the CLK IN signal for the AD7899.
When this link is in position "A" the CLK IN signal is provided by the EVAL-BOARD CONT ROLLER.
When this link is in position "B" the CLK IN signal can be provided by a signal applied to SK 3. If no
signal is applied to SK 3 the pin is pulled low and the internal oscillator is is used to control the conver-
sion.
T his link sets the logic level of the ST BY pin.
When a link is in position "A" the ST BY pin is controlled by the FL1 flag pin of the EVAL-BOARD
C ON T R OL L E R .
When a link is in position "B" the ST BY pin is tied to VDD and the part is in normal operating mode.
When a link is in position "C" the ST BY pin is tied to DGND and the part is in standby mode.
L K 7
L K 8
L K 9
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相關代理商/技術參數 |
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|---|---|
| AD7899AR-1 | 功能描述:IC ADC 14BIT 400KSPS 5V 28-SOIC RoHS:否 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:12 采樣率（每秒）:300k 數據接口:并聯 轉換器數目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數目和類型:1 個單端，單極；1 個單端，雙極 |
| AD7899AR-1REEL | 制造商:Analog Devices 功能描述:ADC Single SAR 400ksps 14-bit Parallel 28-Pin SOIC W T/R |
| AD7899AR-1REEL7 | 制造商:Analog Devices 功能描述:ADC SGL SAR 400KSPS 14BIT PARALLEL 28SOIC W - Tape and Reel |
| AD7899AR-2 | 功能描述:IC ADC 14BIT 400KSPS 5V 28-SOIC RoHS:否 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:- |
| AD7899AR-2REEL | 制造商:Analog Devices 功能描述:ADC Single SAR 400ksps 14-bit Parallel 28-Pin SOIC W T/R |
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