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參數(shù)資料
| 型號(hào)： | ADS7825U |
| 英文描述： | CMOS Dual Complementary Pair Plus Inverter 14-TSSOP -55 to 125 |
| 中文描述： | 4通道，16位采樣的CMOS A / D轉(zhuǎn)換 |
| 文件頁數(shù)： | 3/16頁 |
| 文件大?。?/td> | 342K |
| 代理商： | ADS7825U |
3
ADS7825
V
S1
V
S2
PWRD
CONTC
BUSY
CS
R/C
BYTE
PAR/SER
A0
A1
D0
D1
D2
AGND1
AIN
0
AIN
1
AIN
2
AIN
3
CAP
REF
AGND2
D7
D6
D5
D4
D3
DGND
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
ADS7825
TRI-STATE
TRI-STATE
TRI-STATE
EXT/INT
SYNC
TAG
SDATA
DATACLK
DIGITAL TIMING
Bus Access Time
Bus Relinquish Time
Data Clock
Internal Clock (Output only when
transmitting data)
External Clock
PAR/SER = +5V
PAR/SER = +5V
PAR/SER = 0V
EXT/INT LOW
83
83
6
6
ns
ns
0.5
1.5
6
6
MHz
EXT/INT HIGH
0.1
10
6
6
MHz
POWER SUPPLIES
V
= V
= V
Power Dissipation
+4.75
+5
+5.25
50
6
6
6
6
V
f
= 40kHz
PWRD HIGH
mW
μ
W
50
6
TEMPERATURE RANGE
Specified Performance
Storage
Thermal Resistance (
θ
JA
)
Plastic DIP
SOIC
–40
–65
+85
+150
6
6
6
6
°
C
°
C
75
75
6
6
°
C/W
°
C/W
NOTES: (1) An asterik (
6
) specifies same value as grade to the left. (2) LSB means Least Significant Bit. For the 16-bit,
±
10V input ADS7825, one LSB is 305
μ
V. (3)
Typical rms noise at worst case transitions and temperatures. (4) Full scale error is the worst case of –Full Scale or +Full Scale untrimmed deviation from ideal first and
last code transitions, divided by the transition voltage (not divided by the full-scale range) and includes the effect of offset error. (5) All specifications in dB are referred
to a full-scale
±
10V input. (6) A full scale sinewave input on one channel will be attenuated by this amount on the other channels. (7) Useable Bandwidth defined as
Full-Scale input frequency at which Signal-to-(Noise+Distortion) degrades to 60dB, or 10 bits of accuracy. (8) The ADS7825 will accurately acquire any input step if given
a full acquisition period after the step. (9) Recovers to specified performance after 2 x FS input overvoltage, and normal acquisitions can begin.
SPECIFICATIONS
(CONT)
ELECTRICAL
At T
A
= –40
°
C to +85
°
C, f
S
= 40kHz, V
S1
= V
S2
= V
S
=
+5V
±
5%, using external reference, CONTC = 0V, unless otherwise specified.
ADS7825P, U
ADS7825PB, UB
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
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 degrada-
tion 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.
PACKAGE
DRAWING
NUMBER
(1)
MINIMUM SIGNAL-
TO-(NOISE + DISTORTION)
RATIO (dB)
TEMPERATURE
RANGE
MAXIMUM INTEGRAL
LINEARITY ERROR (LSB)
PRODUCT
PACKAGE
ADS7825P
ADS7825PB
ADS7825U
ADS7825UB
Plastic Dip
Plastic Dip
SOIC
SOIC
246
246
217
217
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
±
3
±
2
±
3
±
2
83
86
83
86
NOTE: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix C of Burr-Brown IC Data Book.
PACKAGE/ORDERING INFORMATION
ABSOLUTE MAXIMUM RATINGS
TOP VIEW
DIP/SOIC
PIN CONFIGURATION
Analog Inputs: AIN
, AIN
, AIN
, AIN
..............................................
±
15V
REF ................................... (AGND2 –0.3V) to (V
S
+ 0.3V)
CAP ........................................Indefinite Short to AGND2,
Momentary Short to V
S
V
S1
and V
S2
to AGND2...........................................................................7V
V
to V
..........................................................................................
±
0.3V
Difference between AGND1, AGND2 and DGND.............................
±
0.3V
Digital Inputs and Outputs.......................................... –0.3V to (V
+ 0.3V)
Maximum Junction Temperature ..................................................... 150
°
C
Internal Power Dissipation ............................................................. 825mW
Lead Temperature (soldering, 10s)................................................ +300
°
C
Maximum Input Current to Any Pin ................................................. 100mA
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADS7825U | 制造商:BURR-BROWN 功能描述:16BIT ADC 4CH SMD 7825 SOIC28 |
| ADS7825U/1K | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 4 Channel 16-Bit Sampling CMOS 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 |
| ADS7825U/1KE4 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 4 Channel 16-Bit Sampling CMOS 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 |
| ADS7825UB | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 4 Channel 16-Bit Sampling CMOS 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 |
| ADS7825UB/1K | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 4 Channel 16-Bit Sampling CMOS 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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