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參數資料
型號: AD7888BR
廠商: ANALOG DEVICES INC
元件分類: ADC
英文描述: +2.7 V to +5.25 V, Micropower, 8-Channel, 125 kSPS, 12-Bit ADC in 16-Lead TSSOP
中文描述: 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16
封裝: SOIC-16
文件頁數: 5/16頁
文件大?。?/td> 164K
代理商: AD7888BR
REV. 0
AD7888
–5–
PIN CONFIGURATIONS
SOIC AND TSSOP
TOP VIEW
(Not to Scale)
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
CS
REF IN/REF OUT
V
DD
AGND
AIN1
AIN2
AIN3
AIN4
SCLK
DOUT
DIN
AGND
AIN8
AIN7
AIN6
AIN5
AD7888
PIN FUNCTION DESCRIPTIONS
Pin
No.
Pin
Mnemonic
Function
1
CS
Chip Select. Active low logic input. This input provides the dual function of initiating conversions on
the AD7888 and also frames the serial data transfer.
Reference Input/Output. The on-chip reference is available on this pin for use external to the AD7888.
Alternatively, the internal reference can be disabled and an external reference applied to this input.
The voltage range for the external reference is from +1.2 V to V
DD
.
Power Supply Input. The V
DD
range for the AD7888 is from +2.7 V to +5.25 V.
Analog Ground. Ground reference point for all circuitry on the AD7888. All analog input signals and
any external reference signals should be referred to this AGND voltage. Both of these pins should
connect to the AGND plane of a system.
Analog Input 1 through Analog Input 8. Eight single-ended analog input channels that are multiplexed
into the on-chip track/hold. The analog input channel to be converted is selected by using the ADD0
through ADD2 bits of the Control Register. The input range for all input channels is 0 to V
REF
. Any
unused input channels should be connected to AGND to avoid noise pickup.
Data In. Logic Input. Data to be written to the AD7888’s Control Register is provided on this input
and is clocked into the register on the rising edge of SCLK (see Control Register section).
Data Out. Logic Output. The conversion result from the AD7888 is provided on this output as a serial
data stream. The bits are clocked out on the falling edge of the SCLK input. The data stream consists
of four leading zeros followed by the 12 bits of conversion data, which is provided MSB first.
Serial Clock. Logic Input. SCLK provides the serial clock for accessing data from the part and writing
serial data to the Control Register. This clock input is also used as the clock source for the AD7888’s
conversion process.
2
REF IN/REF OUT
3
4, 13
V
DD
AGND
5–12
AIN1–AIN8
14
DIN
15
DOUT
16
SCLK
相關PDF資料
PDF描述
AD7888BRU +2.7 V to +5.25 V, Micropower, 8-Channel, 125 kSPS, 12-Bit ADC in 16-Lead TSSOP
AD7889 12-Bit 600 kSPS ADC(單電源600kSPS12位A/D轉換器)
AD7890AN-10 DIN Audio Connector; No. of Contacts:6; Contact Termination:Solder; Mounting Type:Panel; Gender:Female; Terminal Type:Solder RoHS Compliant: Yes
AD7890AR-4 Circular Connector Cable Assembly; Connector Type A:Circular Receptacle; Connector Type B:Stripped End Leads; Cable Length:10ft RoHS Compliant: Yes
AD7890BN-10 SECURITY GUARD BLACK LOCKDOWN
相關代理商/技術參數
參數描述
AD7888BR-REEL 功能描述:IC ADC 12BIT 8CHAN SRL 16SOIC 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:16 采樣率(每秒):45k 數據接口:串行 轉換器數目:2 功率耗散(最大):315mW 電壓電源:模擬和數字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC(0.295",7.50mm 寬) 供應商設備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數目和類型:2 個單端,單極
AD7888BR-REEL7 功能描述:IC ADC 12BIT 8CHAN SRL 16SOIC 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:16 采樣率(每秒):45k 數據接口:串行 轉換器數目:2 功率耗散(最大):315mW 電壓電源:模擬和數字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC(0.295",7.50mm 寬) 供應商設備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數目和類型:2 個單端,單極
AD7888BRZ 功能描述:IC ADC 12BIT SRL 125KSPS 16SOIC RoHS:是 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
AD7889-1ACBZ-500R7 功能描述:IC ADC 12BIT CTRLR TOUCH 12WLCSP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 觸摸屏控制器 系列:- 標準包裝:96 系列:- 類型:- 觸摸面板接口:- 輸入數/鍵:- 分辨率(位):- 評估套件:* 數據接口:- 數據速率/采樣率 (SPS,BPS):- 電壓基準:- 電源電壓:- 電流 - 電源:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:16-TSSOP(0.173",4.40mm 寬) 供應商設備封裝:16-TSSOP 包裝:帶卷 (TR)
AD7889-1ACBZ-RL 功能描述:IC ADC 12BIT CTRLR TOUCH 12WLCSP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 觸摸屏控制器 系列:- 標準包裝:96 系列:- 類型:- 觸摸面板接口:- 輸入數/鍵:- 分辨率(位):- 評估套件:* 數據接口:- 數據速率/采樣率 (SPS,BPS):- 電壓基準:- 電源電壓:- 電流 - 電源:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:16-TSSOP(0.173",4.40mm 寬) 供應商設備封裝:16-TSSOP 包裝:帶卷 (TR)
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