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参数资料
型号： ADS7812UB
厂商： Texas Instruments
文件页数： 12/24页
文件大小： 0K
描述： IC 12BIT 35MW SER OUT A/D 16SOIC
产品培训模块： Data Converter Basics
标准包装： 40
位数： 12
采样率（每秒）： 40k
数据接口： 串行，SPI?
转换器数目： 1
功率耗散（最大）： 35mW
电压电源： 单电源
工作温度： -40°C ~ 85°C
安装类型： 表面贴装
封装/外壳： 16-SOIC（0.295"，7.50mm 宽）
供应商设备封装： 16-SOIC
包装： 管件
输入数目和类型： 3 个单端，单极；3 个单端，双极
ADS7812
2
SBAS042A
www.ti.com
SPECIFICATIONS
At TA = –40°C to +85°C, fS = 40kHz, VS = +5V ±5%, using internal reference, unless otherwise specified.
ADS7812P, U
ADS7812PB, UB
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
RESOLUTION
12
Bits
ANALOG INPUT
Voltage Range
See Table I
Impedance
See Table I
Capacitance
35
pF
THROUGHPUT SPEED
Conversion Time
20
s
Complete Cycle
Acquire and Convert
25
s
Throughput Rate
40
kHz
DC ACCURACY
Integral Linearity Error
0.1
±1
±0.5
LSB(1)
Differential Linearity Error
0.1
±1
±0.5
LSB
No Missing Codes
Specified
Transition Noise(2)
0.05
LSB
Full Scale Error(3)
±0.5
±0.25
%
Full Scale Error Drift
±14
ppm/
°C
Full Scale Error(3)
Ext. 2.5000V Ref
±0.5
±0.25
%
Full Scale Error Drift
Ext. 2.5000V Ref
±5
ppm/
°C
Bipolar Zero Error
Bipolar Ranges
±10
mV
Bipolar Zero Error Drift
Bipolar Ranges
±3
ppm/
°C
Unipolar Zero Error
Unipolar Ranges
±6
mV
Unipolar Zero Error Drift
Unipolar Ranges
±3
ppm/
°C
Recovery Time to Rated Accuracy
1.0
F Capacitor to CAP
300
s
from Power Down(4)
Power Supply Sensitivity
+4.75V < (VS = +5V) < +5.25
±0.75
LSB
AC ACCURACY
Spurious-Free Dynamic Range
fIN = 1kHz
80
98
dB(5)
Total Harmonic Distortion
fIN = 1kHz
–96
–80
dB
Signal-to-(Noise+Distortion)
fIN = 1kHz
70
74
72
dB
Signal-to-Noise
fIN = 1kHz
70
74
72
dB
Useable Bandwidth(6)
130
kHz
Full Power –3dB Bandwidth
600
kHz
ABSOLUTE MAXIMUM RATINGS(1)
Analog Inputs: R1IN ......................................................................... ±16.5V
R2IN ................................................ GND – 0.3V to +16.5V
R3IN ......................................................................... ±16.5V
REF ............................................ GND – 0.3V to VS + 0.3V
CAP ............................................... Indefinite Short to GND
Momentary Short to VS
VS ........................................................................................................... 7V
Digital Inputs ...................................................... GND – 0.3V to VS + 0.3V
Maximum Junction Temperature ................................................... +165
°C
Internal Power Dissipation ............................................................. 825mW
Lead Temperature (soldering, 10s) ............................................... +300
°C
NOTE: (1) Stresses above these ratings may cause permanent damage.
Exposure to absolute maximum conditions for extended periods may degrade
device reliability.
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Texas Instru-
ments 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
specifications.
MINIMUM
MAXIMUM
SPECIFIED
SIGNAL-TO-
INTEGRAL
NO MISSING
(NOISE +
SPECIFIED
LINEARITY
CODE LEVEL DISTORTION)
PACKAGE
TEMPERATURE
PACKAGE
ORDERING
TRANSPORT
PRODUCT
ERROR (LSB)
(LSB)
RATIO (DB)
PACKAGE-LEAD DESIGNATOR(1)
RANGE
MARKING
NUMBER
MEDIA, QUANTITY
ADS7812P
±1
12
70
Dip-16
N
–40
°C to +85°C ADS7812P
ADS7812P
Tubes, 25
ADS7812PB
±0.5
12
72
""
"
ADS7812PB
Tubes, 25
ADS7812U
±1
12
70
SO-16
DW
–40
°C to +85°C ADS7812U
ADS7812U
Tubes, 48
"
ADS7812U/1K
Tape and Reel, 1000
ADS7812UB
±0.5
12
72
SO-16
DW
–40
°C to +85°C ADS7812UB
ADS7812UB
Tubes, 48
"
ADS7812UB/1K
Tape and Reel, 1000
PACKAGE/ORDERING INFORMATION
NOTE: (1) For the most current specifications and package information, refer to our web site at www.ti.com.
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相关代理商/技术参数
参数描述
ADS7812UB/1K 功能描述:模数转换器 - ADC Low-Power Serial 12-Bit Sampling RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
ADS7812UB/1KE4 功能描述:模数转换器 - ADC Low-Power Serial 12-Bit Sampling RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
ADS7812UB/1KG4 功能描述:模数转换器 - ADC Low-Pwr Serial 12B Sampling ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
ADS7812UBE4 功能描述:模数转换器 - ADC Low-Power Serial 12-Bit Sampling RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
ADS7812UBG4 功能描述:模数转换器 - ADC Low-Pwr Serial 12B Sampling ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
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