- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄375265 > ADS7844EB CMOS 8-Stage Presettable 8-Bit Binary Synchronous Down Counter 16-SO -55 to 125 PDF資料下載
參數(shù)資料
| 型號： | ADS7844EB |
| 元件分類： | 通用總線功能 |
| 英文描述： | CMOS 8-Stage Presettable 8-Bit Binary Synchronous Down Counter 16-SO -55 to 125 |
| 中文描述： | 12位，8通道串行輸出采樣模擬到數(shù)字轉(zhuǎn)換器 |
| 文件頁數(shù)： | 4/14頁 |
| 文件大小： | 204K |
| 代理商： | ADS7844EB |
4
ADS7844
PIN CONFIGURATION
Top View
PIN DESCRIPTIONS
PIN
NAME
DESCRIPTION
1
2
3
4
5
6
7
8
9
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
COM
Analog Input Channel 0.
Analog Input Channel 1.
Analog Input Channel 2.
Analog Input Channel 3.
Analog Input Channel 4.
Analog Input Channel 5.
Analog Input Channel 6.
Analog Input Channel 7.
Ground reference for analog inputs. Sets zero code
voltage in single ended mode. Connect this pin to ground
or ground reference point.
Shutdown. When LOW, the device enters a very low
power shutdown mode.
Voltage Reference Input. See Specification Table for
ranges.
Power Supply, 2.7V to 5V.
Ground
Ground
Serial Data Output. Data is shifted on the falling edge of
D
CLK
. This output is high impedance when
CS is high.
Busy Output. Busy goes low when the DIN control bits
are being read and also when the device is converting.
The Output is high impedance when CS is High.
Serial Data Input. If CS is LOW, data is latched on rising
edge of D
CLK
.
Chip Select Input. Active LOW. Data will not be clocked
into D
unless CS is low. When CS is high D
OUT
is high
impedance.
External Clock Input. The clock speed determines the
conversion rate by the equation f
CLK
= 16 f
SAMPLE
.
Power Supply
10
SHDN
11
V
REF
12
13
14
15
+V
CC
GND
GND
D
OUT
16
BUSY
17
D
IN
18
CS
19
CLK
20
+V
CC
1
2
3
4
5
6
7
8
9
10
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
COM
SHDN
+V
CC
D
CLK
CS
D
IN
BUSY
D
OUT
GND
GND
+V
CC
V
REF
20
19
18
17
16
15
14
13
12
11
ADS7844
MINIMUM
RELATIVE
ACCURACY
(LSB)
MAXIMUM
GAIN ERROR
(LSB)
SPECIFICATION
TEMPERATURE
RANGE
PACKAGE
DRAWING
NUMBER
(1)
ORDERING
NUMBER
(2)
TRANSPORT
MEDIA
PRODUCT
PACKAGE
ADS7844E
±
2
"
"
"
±
1
"
"
"
±
4
"
"
"
±
3
"
"
"
–40
°
C to +85
°
C
"
"
"
–40
°
C to +85
°
C
"
"
"
20-Lead QSOP
"
20-Lead SSOP
"
20-Lead QSOP
"
20-Lead SSOP
"
349
"
334
"
349
"
334
"
ADS7844E
ADS7844E/2K5
ADS7844N
ADS7844N/1K
ADS7844EB
ADS7844EB/2K5
ADS7844NB
ADS7844NB/1K
Rails
"
Tape and Reel
Rails
Tape and Reel
Rails
Tape and Reel
Rails
Tape and Reel
ADS7844N
"
ADS7844EB
"
ADS7844NB
"
NOTES: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix C of Burr-Brown IC Data Book. (2) Models with a slash (/) are
available only in Tape and Reel in the quantities indicated (e.g., /2K5 indicates 2500 devices per reel). Ordering 2500 pieces of “ADS7844/2K5” will get a single
2500-piece Tape and Reel. For detailed Tape and Reel mechanical information, refer to Appendix B of Burr-Brown IC Data Book.
PACKAGE/ORDERING INFORMATION
ABSOLUTE MAXIMUM RATINGS
(1)
+V
to GND ........................................................................ –0.3V to +6V
Analog Inputs to GND ............................................ –0.3V to +V
CC
+ 0.3V
Digital Inputs to GND ........................................................... –0.3V to +6V
Power Dissipation .......................................................................... 250mW
Maximum Junction Temperature ................................................... +150
°
C
Operating Temperature Range ........................................–40
°
C to +85
°
C
Storage Temperature Range .........................................–65
°
C to +150
°
C
Lead Temperature (soldering, 10s)............................................... +300
°
C
NOTE: (1) Stresses above those listed under “Absolute Maximum Ratings”
may cause permanent damage to the device. Exposure to absolute maximum
conditions for extended periods may affect device reliability.
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Burr-Brown
recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and
installation procedures can cause damage.
ESD damage can range from subtle performance degradation to
complete device failure. Precision integrated circuits may be
more susceptible to damage because very small parametric
changes could cause the device not to meet its published specifi-
cations.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADS7844N | 12-Bit, 8-Channel Serial Output Sampling ANALOG-TO-DIGITAL CONVERTER |
| ADS7844NB | CMOS 8-Stage Presettable 8-Bit Binary Synchronous Down Counter 16-TSSOP -55 to 125 |
| ADS7845 | CMOS 8-Stage Presettable 8-Bit Binary Synchronous Down Counter 16-TSSOP -55 to 125 |
| ADS7845E | TOUCH SCREEN CONTROLLER |
| ADS7846IGQCR | TOUCH-SCREEN CONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADS7844EB/2K5 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 8-Ch Serial Output Sampling RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADS7844EB/2K5G4 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 8-Ch Serial Output Sampling RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADS7844EBG4 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 8-Ch Serial Output Sampling RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADS7844EG4 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 8-Ch Serial Output Sampling RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADS7844N | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 8-Ch Serial Output Sampling RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。