參數(shù)資料
型號(hào)： ADS7835
英文描述： 12-Bit, High-Speed, Low Power Sampling ANALOG-TO-DIGITAL CONVERTER
中文描述： 12位，高速，低功耗采樣模擬到數(shù)字轉(zhuǎn)換器
文件頁(yè)數(shù)： 2/13頁(yè)
文件大小： 169K
代理商： ADS7835
2
ADS7835
SPECIFICATIONS
At T
A
= –40
°
C to +85
°
C, +V
CC
= +5V, f
SAMPLE
= 500kHz, f
CLK
= 16 f
SAMPLE
, and internal +2.5V reference, 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.
ADS7835E
ADS7835EB
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
RESOLUTION
12
6
Bits
ANALOG INPUT
(1)
Input Voltage Range
±
2.5V with the 2.5V
Internal Reference
–V
REF
+V
REF
6
6
V
Input Capacitance
Input Resistance
25
2
6
6
pF
k
During Conversion (CONV = LOW)
SYSTEM PERFORMANCE
No Missing Codes
Integral Linearity
Differential Linearity
Bipolar Offset Error
Positive Fulll-Scale Error
(3)
12
6
Bits
LSB
(2)
LSB
LSB
LSB
LSB
LSB
LSB
μ
Vrms
LSB
±
1
±
0.8
±
2
±
12
±
2
±
0.5
±
0.5
±
1
±
7
±
1
±
1
±
5
±
12
±
25
±
12
±
25
±
10
±
20
±
35
±
20
±
35
At 25
°
C
–40
°
C to +85
°
C
At 25
°
C
–40
°
C to +85
°
C
Negative Full-Scale Error
(3)
±
12
±
7
Noise
Power Supply Rejection Ratio
200
0.3
6
6
Worst-Case
, +V
CC
= 5V
±
5%
SAMPLING DYNAMICS
Conversion Time
Acquisition Time
Throughput Rate
Aperture Delay
Aperture Jitter
Step Response
1.625
0.350
6
6
μ
s
μ
s
kHz
ns
ps
ns
500
6
5
30
375
6
6
6
DYNAMIC CHARACTERISTICS
Signal-to-Noise Ratio
Total Harmonic Distortion
(4)
Signal-to-(Noise+Distortion)
Spurious Free Dynamic Range
V
IN
= 5Vp-p at 10kHz
V
IN
= 5Vp-p at 10kHz
V
IN
= 5Vp-p at 10kHz
V
IN
= 5Vp-p at 10kHz
72
–78
70
78
6
dB
dB
dB
dB
–72
–82
72
82
–75
68
72
70
75
REFERENCE OUTPUT
Voltage
Source Current
(5)
Line Regulation
I
= 0
Static Load
4.75V
≤
V
CC
≤
5.25V
2.475
2.50
2.525
50
2.48
6
2.52
6
V
μ
A
mV
0.2
6
REFERENCE INPUT
Range
Resistance
(6)
2.3
2.9
6
6
V
k
To Internal Reference Voltage
10
6
DIGITAL INPUT/OUTPUT
Logic Family
Logic Levels:
V
IH
V
IL
V
OH
V
Data Format
CMOS
6
I
IH
≤
+5
μ
A
I
IL
≤
+5
μ
A
I
OH
= –500
μ
A
I
OL
= 500
μ
A
3.0
–0.3
3.5
+V
CC
+ 0.3
0.8
6
6
6
6
6
V
V
V
V
0.4
6
Binary Two’s Complement
6
POWER SUPPLY REQUIREMENT
+V
Quiescent Current
Specified Performance
f
SAMPLE
= 500kHz
4.75
5.25
6
6
V
3.5
0.5
17.5
2.5
6
6
6
6
mA
mA
mW
mW
Power Dissipation
Power-Down
30
6
TEMPERATURE RANGE
Specified Performance
–40
+85
6
6
°
C
6
Specifications same as ADS7835E.
NOTES: (1) Ideal input span, does not include gain or offset error. (2) LSB means Least Significant Bit, with V
equal to +2.5V, one LSB is 1.22mV. (3) Measured
relative to an ideal positive full scale of 2.499V for positive full-scale error. Measured relative to an ideal negative full scale of –2.499V for negative full-scale error.
(4) Calculated on the first nine harmonics of the input frequency. (5) If the internal reference is required to source current to an external load, the reference voltage
will change due to the internal 10k
resistor. (6) Can vary
±
30%.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS7835E 制造商:Rochester Electronics LLC 功能描述:- Bulk
ADS7835E/250 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit High Speed Low Power 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
ADS7835E/250G4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit High Speed Low Power 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
ADS7835E/2K5 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit High Speed Low Power 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
ADS7835E/2K5G4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit High Speed Low Power 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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