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參數(shù)資料
| 型號： | ADS7842E |
| 英文描述： | 12-Bit, 4-Channel Parallel Output Sampling ANALOG-TO-DIGITAL CONVERTER |
| 中文描述： | 12位，4通道并行輸出采樣模擬到數(shù)字轉(zhuǎn)換器 |
| 文件頁數(shù)： | 4/13頁 |
| 文件大?。?/td> | 139K |
| 代理商： | ADS7842E |
4
ADS7842
PIN CONFIGURATION
Top View
SSOP
PIN DESCRIPTIONS
PIN
NAME
DESCRIPTION
1
AIN0
Analog Input Channel 0
2
AIN1
Analog Input Channel 1
3
AIN2
Analog Input Channel 2
4
AIN3
Analog Input Channel 3
5
V
REF
Voltage Reference Input. See Specifications Tables
for ranges.
6
AGND
Analog Ground
7
DB11
Data Bit 11 (MSB)
8
DB10
Data Bit 10
9
DB9
Data Bit 9
10
DB8
Data Bit 8
11
DB7
Data Bit 7
12
DB6
Data Bit 6
13
DB5
Data Bit 5
14
DGND
Digital Ground
15
DB4
Data Bit 4
16
DB3
Data Bit 3
17
DB2
Data Bit 2
18
DB1
Data Bit 1
19
DB0
Data Bit 0 (LSB)
20
RD
Read Input. Active LOW. Reads the data outputs in
combination with CS.
21
CS
Chip Select Input. Active LOW. The combination of
CS taken LOW and WR taken LOW initiates a new
conversion and places the outputs in the tri-state
mode.
22
WR
Write Input. Active LOW. Starts a new conversion
and selects an analog channel via address inputs A0
and A1, in combination with CS.
23
BUSY
BUSY goes LOW and stays LOW during a
conversion. BUSY rises when a conversion is
complete and enables the parallel outputs.
24
CLK
External Clock Input. The clock speed determines the
conversion rate by the equation f
CLK
= 16 f
SAMPLE
.
Address Inputs. Selects one of four analog input
channels in combination with CS and WR. The
address inputs are latched on the rising edge of
either RD or WR.
25, 26
A0, A1
A0
A1
Channel Selected
0
0
AIN0
0
1
AIN1
1
0
AIN2
1
1
AIN3
27
V
DIG
V
ANA
Digital Supply Input. Nominally +5V.
28
Analog Supply Input. Nominally +5V.
ABSOLUTE MAXIMUM RATINGS
(1)
+V
to GND ........................................................................ –0.3V to +6V
Analog Inputs to GND ............................................ –0.3V to +V
+ 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 recom-
mends 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 specifications.
MINIMUM
RELATIVE
ACCURACY
(LSB)
SPECIFICATION
TEMPERATURE
RANGE
PACKAGE
DRAWING
NUMBER
SINAD
(dB)
ORDERING
NUMBER
(1)
TRANSPORT
MEDIA
PRODUCT
PACKAGE
ADS7842E
±
2
"
±
1
"
68
"
70
"
–40
°
C to +85
°
C
"
–40
°
C to +85
°
C
"
SSOP-28
"
SSOP-28
"
324
"
324
"
ADS7842E
ADS7842E/1K
ADS7842EB
ADS7842EB/1K
Rails
"
Tape and Reel
Rails
Tape and Reel
ADS7842EB
"
NOTES: (1) Models with a slash (/) are available only in Tape and Reel in the quantities indicated (e.g., /1K indicates 1000 devices per reel). Ordering 1000 pieces
of “ADS7842E/1K” will get a single 1000-piece Tape and Reel.
PACKAGE/ORDERING INFORMATION
1
2
3
4
5
6
7
8
8
10
11
12
13
14
AIN0
AIN1
AIN2
AIN3
V
REF
AGND
DB11
DB10
DB9
DB8
DB7
DB6
DB5
DGND
V
ANA
V
DIG
A1
A0
CLK
BUSY
WR
CS
RD
DB0
DB1
DB2
DB3
DB4
28
27
26
25
24
23
22
21
20
19
18
17
16
15
ADS7842E
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADS7842E/1K | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 4-Ch Parallel 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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADS7842E/1KG4 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 4-Ch Parallel 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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADS7842EB | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 4-Ch Parallel 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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADS7842EB | 制造商:Texas Instruments 功能描述:IC 12BIT ADC 200KHZ SSOP28 制造商:Texas Instruments 功能描述:IC, 12BIT ADC, 200KHZ, SSOP28 制造商:Texas Instruments 功能描述:IC, 12BIT ADC, 200KHZ, SSOP28; Resolution (Bits):12bit; Sampling Rate:200kSPS; Supply Voltage Type:Single; Supply Voltage Min:2.7V; Supply Voltage Max:5.25V; Supply Current:550A; Digital IC Case Style:SSOP; No. of Pins:28; Input ;RoHS Compliant: Yes |
| ADS7842EB | 制造商:Texas Instruments 功能描述:IC's |
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