參數(shù)資料
型號(hào)： ADS7812UB
英文描述： Low-Power, Serial 12-Bit Sampling ANALOG-TO-DIGITAL CONVERTER
中文描述： 低功耗，串行12位采樣模擬到數(shù)字轉(zhuǎn)換器
文件頁(yè)數(shù)： 3/17頁(yè)
文件大小： 381K
代理商： ADS7812UB
3
ADS7812
POWER SUPPLY
V
S
Power Dissipation
+4.75
+5
+5.25
35
6
6
6
6
V
f
S
= 40kHz
mW
TEMPERATURE RANGE
Specified Performance
Derated Performance
–40
–55
+85
+125
6
6
6
6
°
C
°
C
6
Same specification as grade to the left.
NOTES: (1) LSB means Least Significant Bit. For the
±
10V input range, one LSB is 4.88mV. (2) Typical rms noise at worst case transitions and temperatures. (3)
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. (4) After the ADS7812 is initially powered on and fully settles, this is the time delay after it
is brought out of Power Down Mode until all internal settling occurs and the analog input is acquired to rated accuracy, and normal conversions can begin again.
(5) All specifications in dB are referred to a full-scale input. (6) Useable Bandwidth defined as Full-Scale input frequency at which Signal-to-(Noise+Distortion)
degrades to 60dB, or 10 bits of accuracy. (7) Recovers to specified performance after 2 x FS input overvoltage.
SPECIFICATIONS
(CONT)
At T
A
= –40
°
C to +85
°
C, f
S
= 40kHz, V
S
= +5V
±
5%, using internal reference, unless otherwise specified.
ADS7812P, U
ADS7812PB, UB
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
ABSOLUTE MAXIMUM RATINGS
Analog Inputs: R1
IN
.........................................................................
±
16.5V
R2
IN.....................................................................
GND – 0.3V to +16.5V
R3
IN.......................................................................................................
±
16.5V
REF ............................................ GND – 0.3V to V
+ 0.3V
CAP ............................................... Indefinite Short to GND
Momentary Short to V
S
V
........................................................................................................... 7V
Digital Inputs ...................................................... GND – 0.3V to V
+ 0.3V
Maximum Junction Temperature ................................................... +165
°
C
Internal Power Dissipation ............................................................. 825mW
Lead Temperature (soldering, 10s)................................................ +300
°
C
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/ORDERING INFORMATION
MAXIMUM
INTEGRAL
LINEARITY
ERROR (LSB)
GUARANTEED
NO MISSING
CODE LEVEL
(LSB)
MINIMUM
SIGNAL-TO-
(NOISE + DISTORTION)
RATIO (dB)
SPECIFICATION
TEMPERATURE
RANGE
PACKAGE
DRAWING
NUMBER
(1)
PRODUCT
PACKAGE
ADS7812P
ADS7812PB
ADS7812U
ADS7812UB
±
1
±
0.5
±
1
±
0.5
12
12
12
12
70
72
70
72
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
Plastic DIP
Plastic DIP
SOIC
SOIC
180
180
211
211
NOTE: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix C of Burr-Brown IC Data Book.
相關(guān)PDF資料
PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS7812UB/1K 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Low-Power Serial 12-Bit 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
ADS7812UB/1KE4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Low-Power Serial 12-Bit 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
ADS7812UB/1KG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Low-Pwr Serial 12B Sampling ADC 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
ADS7812UBE4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Low-Power Serial 12-Bit 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
ADS7812UBG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Low-Pwr Serial 12B Sampling ADC 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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