參數(shù)資料
型號(hào)： ADS7819PB
英文描述： 12-Bit 800kHz Sampling CMOS ANALOG-to-DIGITAL CONVERTER
中文描述： 12位800kHz采樣CMOS模擬數(shù)字轉(zhuǎn)換器
文件頁(yè)數(shù)： 4/11頁(yè)
文件大?。?/td> 317K
代理商： ADS7819PB
4
ADS7819
PIN CONFIGURATION
V
IN
AGND1
REF
CAP
AGND2
D11 (MSB)
D10
D9
D8
D7
D6
D5
D4
DGND
+V
ANA
+V
DIG
–V
ANA
BUSY
CS
R/C
DGND
+V
DIG
+V
ANA
NC
(1)
D0 (LSB)
D1
D2
D3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
ADS7819
NOTE: (1) Not Internally Connected.
PIN ASSIGNMENTS
DIGITAL
I/O
PIN #
NAME
DESCRIPTION
1
2
3
V
Analog Input. Connect via 50
to analog input. Full-scale input range is
±
2.5V.
Analog Ground. Used internally as ground reference point. Minimal current flow.
Reference Input/Output. Outputs internal reference of +2.5V nominal. Can also be driven by external system
reference. In both cases, decouple to ground with a 0.1
μ
F ceramic capacitor.
Reference Buffer Output. 10
μ
F tantalum capacitor to ground. Nominally +2V.
Analog Ground.
Data Bit 11. Most Significant Bit (MSB) of conversion results. Hi-Z state when CS is HIGH, or when R/C is
LOW, or when a conversion is in progress.
Data Bit 10. Hi-Z state when CS is HIGH, or when R/C is LOW, or when a conversion is in progress.
Data Bit 9. Hi-Z state when CS is HIGH, or when R/C is LOW, or when a conversion is in progress.
Data Bit 8. Hi-Z state when CS is HIGH, or when R/C is LOW, or when a conversion is in progress.
Data Bit 7. Hi-Z state when CS is HIGH, or when R/C is LOW, or when a conversion is in progress.
Data Bit 6. Hi-Z state when CS is HIGH, or when R/C is LOW, or when a conversion is in progress.
Data Bit 5. Hi-Z state when CS is HIGH, or when R/C is LOW, or when a conversion is in progress.
Data Bit 4. Hi-Z state when CS is HIGH, or when R/C is LOW, or when a conversion is in progress.
Digital Ground.
Data Bit 3. Hi-Z state when CS is HIGH, or when R/C is LOW, or when a conversion is in progress.
Data Bit 2. Hi-Z state when CS is HIGH, or when R/C is LOW, or when a conversion is in progress.
Data Bit 1. Hi-Z state when CS is HIGH, or when R/C is LOW, or when a conversion is in progress.
Data Bit 0. Least Significant Bit (LSB) of conversion results. Hi-Z state when CS is HIGH, or when R/C is
LOW, or when a conversion is in progress.
Not internally connected.
Analog Positive Supply Input. Nominally +5V. Connect directly to pins 21, 27 and 28.
Digital Supply Input. Nominally +5V. Connect directly to pins 20, 27 and 28.
Digital ground.
Read/Convert Input. With CS LOW, a falling edge on R/C puts the internal sample/hold into the hold state and
starts a conversion. With CS LOW and no conversion in progress, a rising edge on R/C enables the output
data bits.
Chip Select. With R/C LOW, a falling edge on CS will initiate a conversion. With R/C HIGH and no conversion
in progress, a falling edge on CS will enable the output data bits.
Busy Output. Falls when a conversion is started, and remains LOW until the conversion is completed and the
data is latched into the output register. With CS LOW and R/C HIGH, output data will be valid when BUSY
rises, so that the rising edge can be used to latch the data.
Analog Negative Supply Input. Nominally –5V. Decouple to ground with 0.1
μ
F ceramic and 10
μ
F tantalum
capacitors.
Digital Supply Input. Nominally +5V. Connect directly to pins 20, 21 and 28.
Analog Positive Supply Input. Nominally +5V. Connect directly to pins 20, 21 and 27, and decouple to ground
with 0.1
μ
F ceramic and 10
μ
F tantalum capacitors.
AGND1
REF
4
5
6
CAP
AGND2
D11 (MSB)
O
7
8
9
10
11
12
13
14
15
16
17
18
D10
D9
D8
D7
D6
D5
D4
DGND
D3
D2
D1
D0 (LSB)
O
O
O
O
O
O
O
O
O
O
O
19
20
21
22
23
+V
ANA
+V
DGND
R/C
I
24
CS
I
25
BUSY
O
26
–V
ANA
27
28
+V
DIG
+V
ANA
相關(guān)PDF資料
PDF描述
ADS7819UB 12-Bit 800kHz Sampling CMOS ANALOG-to-DIGITAL CONVERTER
ADS7819 CMOS Dual 4-Input NOR Gate 14-SOIC -55 to 125
ADS7819P CMOS Dual 4-Input NOR Gate 14-SOIC -55 to 125
ADS7819U 12-Bit 800kHz Sampling CMOS ANALOG-to-DIGITAL CONVERTER
ADS7820 CMOS Dual 4-Input NOR Gate 14-SOIC -55 to 125
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS7819U 制造商:Texas Instruments 功能描述:
ADS7819UB 制造商:Rochester Electronics LLC 功能描述:12 BIT A/D CONVERTER - Bulk
ADS7820 制造商:BB 制造商全稱:BB 功能描述:12-Bit 10ms Sampling CMOS ANALOG-to-DIGITAL CONVERTER
ADS7820P 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:BURR BROWN 功能描述:ANALOG 2000 DC S8J2B 制造商:Texas Instruments 功能描述:
ADS7820PB 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12bit 10 Micro-Sec 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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
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