參數(shù)資料
型號(hào)： ADS7811
英文描述： 16-Bit 250kHz Sampling CMOS ANALOG-to-DIGITAL CONVERTER
中文描述： 16位至250kHz采樣CMOS模擬數(shù)字轉(zhuǎn)換器
文件頁數(shù)： 2/9頁
文件大?。?/td> 186K
代理商： ADS7811
2
ADS7811
RESOLUTION
16
Bits
ANALOG INPUT
Voltage Range
Impedance
Capacitance
±
2.5V
100
30
V
After Input Capacitor is Charged
M
pF
THROUGHPUT SPEED
Conversion Cycle
Throughput Rate
Acquire and Convert
4.0
μ
s
kHz
250
DC ACCURACY
Integral Linearity Error
No Missing Codes
Transition Noise
(2)
Full Scale Error
(3)
Full Scale Error Drift
Full Scale Error
(3)
Full Scale Error Drift
Bipolar Zero Error
Bipolar Zero Error Drift
Power Supply Sensitivity
±
4
LSB
(1)
Bits
LSB
%
ppm/
°
C
%
ppm/
°
C
mV
ppm/
°
C
LSB
15
0.8
±
0.5
±
7
±
0.2
2
External 2.5000V Reference
External 2.5000V Reference
±
10
±
2
±
6
+V
S
±
5%, –V
S
±
5%
±
16
AC ACCURACY
Spurious-Free Dynamic Range
Total Harmonic Distortion
Signal-to-(Noise+Distortion)
f
IN
= 100kHz
f
IN
= 100kHz
f
= 100kHz
–60dB Input
f
IN
= 100kHz
96
100
–98
87
28
87
1
40
dB
(4)
dB
dB
dB
dB
MHz
ns
–96
84
Signal-to-Noise
Usable Bandwidth
(5)
Aperture Delay
84
REFERENCE
Internal Reference Voltage
Internal Reference Source Current
Internal Reference Drift
External Reference Voltage Range
External Reference Current Drain
2.48
2.5
1
15
2.5
2.52
V
μ
A
ppm/
°
C
V
μ
A
V
REF
= +2.5V
100
DIGITAL INPUTS
Logic Levels
V
IL
V
IH
I
IL
I
IH
–0.3
+2.8
+0.8
V
V
μ
A
μ
A
+V
S
+0.3V
±
10
±
10
DIGITAL OUTPUTS
Data Format
Data Coding
V
OL
V
Leakage Current
I
SINK
= 1.6mA
I
SOURCE
= 200
μ
A
V
OUT
= 0V to V
DIG
+0.4
V
V
μ
A
+4
±
5
Output Capacitance
15
pF
DIGITAL TIMING
Bus Access Time
Bus Relinquish Time
83
83
ns
ns
POWER SUPPLIES
+V
S
–V
S
+I
S
–I
Power Dissipation
+4.75
–5.25
+5
–5
+30
–10
200
+5.25
–4.75
V
V
mA
mA
mW
250
TEMPERATURE RANGE
Specified Performance
Storage
–25
–55
+85
+125
°
C
°
C
NOTES: (1) LSB means Least Significant Bit. For the 16-bit,
±
2.5V input ADS7811, one LSB is 76
μ
V. (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) All specifications in dB are referred to a full-scale
±
2.5V input. (5) Usable
Bandwidth defined as Full-Scale input frequency at which Signal-to-(Noise+Distortion) degrades to 60dB, or 10 bits of accuracy.
SPECIFICATIONS
At T
A
= –25
°
C to +85
°
C, f
S
= 250kHz, +V
S
= +5V, and –V
S
= –5V, using internal reference, unless otherwise specified.
ADS7811U
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Parallel 16 bits
Binary Two’s Complement
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS7811U 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 250kHz 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
ADS7811U 制造商:Texas Instruments 功能描述:Analog-Digital Converter IC Number of Bi
ADS7811U/1K 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 250kHz 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
ADS7811U/1KE4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 250kHz 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
ADS7811U/1KG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 250kHz 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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