參數(shù)資料
型號： ADS7822EB
廠商： Texas Instruments, Inc.
英文描述： 12-Bit, High-Speed, 2.7V microPower Sampling ANALOG-TO-DIGITAL CONVERTER
中文描述： 12位，高速，2.7微采樣模擬到數(shù)字轉(zhuǎn)換器
文件頁數(shù)： 2/12頁
文件大小： 146K
代理商： ADS7822EB
2
ADS7822
SPECIFICATIONS
At –40
°
C to +85
°
C, +V
CC
= +2.7V, V
REF
= +2.5V, f
SAMPLE
= 75kHz, f
CLK
= 16 f
SAMPLE
, unless otherwise specified.
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN
assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject
to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not
authorize or warrant any BURR-BROWN product for use in life support devices and/or systems.
ADS7822
ADS7822B
ADS7822C
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
ANALOG INPUT
Full-Scale Input Span
Absolute Input Range
+In – (–In)
+In
–In
0
V
REF
V
CC
+0.2
+1.0
6
6
6
6
6
6
6
6
6
6
6
6
V
V
V
pF
μ
A
–0.2
–0.2
Capacitance
Leakage Current
25
±
1
6
6
6
6
SYSTEM PERFORMANCE
Resolution
No Missing Codes
Integral Linearity Error
Differential Linearity Error
Offset Error
Gain Error
Noise
Power Supply Rejection
12
6
6
Bits
Bits
LSB
(1)
LSB
LSB
LSB
μ
Vrms
dB
11
12
6
±
0.5
±
0.5
±
2
±
2
±
3
±
3
±
0.5
±
0.5
±
1
±
1
6
6
±
0.25
±
0.25
±
0.75
±
0.75
±
1
±
1
33
82
6
6
6
6
SAMPLING DYNAMICS
Conversion Time
Acquisition Time
Throughput Rate
12
6
6
Clk Cycles
Clk Cycles
kHz
1.5
6
6
75
6
6
DYNAMIC CHARACTERISTICS
Total Harmonic Distortion
SINAD
Spurious Free Dynamic Range
V
IN
= 2.5Vp-p at 1kHz
V
IN
= 2.5Vp-p at 1kHz
V
IN
= 2.5Vp-p at 1kHz
–82
71
86
6
6
6
6
6
6
dB
dB
dB
REFERENCE INPUT
Voltage Range
Resistance
0.05
V
CC
6
6
6
6
V
CS = GND, f
= 0Hz
CS = V
At Code 710h
f
SAMPLE
= 7.5kHz
CC
5
5
8
6
6
6
6
6
6
6
6
6
6
G
G
μ
A
μ
A
μ
A
Current Drain
40
6
6
0.8
0.001
3
6
6
DIGITAL INPUT/OUTPUT
Logic Family
Logic Levels:
V
IH
V
IL
V
OH
V
Data Format
CMOS
6
6
I
IH
= +5
μ
A
I
IL
= +5
μ
A
I
OH
= –250
μ
A
OL
= 250
μ
A
2.0
–0.3
2.1
5.5
0.8
6
6
6
6
6
6
6
6
6
6
V
V
V
V
0.4
6
6
Straight Binary
6
6
POWER SUPPLY REQUIREMENTS
V
CC
Specified Performance
See Notes 2 and 3
See Note 3
2.7
2.0
3.6
3.6
2.7
5.25
325
6
6
6
6
6
6
6
6
6
6
6
6
6
6
V
V
V
μ
A
μ
A
μ
A
Quiescent Current
200
20
180
6
6
6
6
6
6
f
SAMPLE
= 7.5kHz
(4,5)
f
SAMPLE
= 7.5kHz
(5)
Power Down
CS = V
CC
3
6
6
μ
A
TEMPERATURE RANGE
Specified Performance
–40
+85
6
6
6
6
°
C
6
Specifications same as ADS7822.
Notes: (1) LSB means Least Significant Bit. With V
REF
equal to +2.5V, one LSB is 0.61mV. (2) The maximum clock rate of the ADS7822 is less than 1.2MHz in this
power supply range. (3) See the Typical Performance Curves for more information. (4) f
CLK
= 1.2MHz, CS = V
CC
for 145 clock cycles out of every 160. (5) See the
Power Dissipation section for more information regarding lower sample rates.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS7822EB/250 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit Hi-Speed 2.7V MicroPower 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
ADS7822EB/250 制造商:Texas Instruments 功能描述:IC ADC 12BIT 200KSPS MSOP-8
ADS7822EB/250G4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit Hi-Speed 2.7V MicroPower 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
ADS7822EB/2K5 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit Hi-Speed 2.7V MicroPower 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
ADS7822EB/2K5G4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit Hi-Speed 2.7V MicroPower 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
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