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參數(shù)資料
| 型號： | ADS7817 |
| 英文描述： | 12-Bit Differential Input Micro Power Sampling ANALOG-TO-DIGITAL CONVERTER |
| 中文描述： | 12位差分輸入微功耗采樣模擬到數(shù)字轉(zhuǎn)換器 |
| 文件頁數(shù)： | 2/15頁 |
| 文件大?。?/td> | 172K |
| 代理商： | ADS7817 |
2
ADS7817
SPECIFICATIONS
At –40
°
C to +85
°
C, +V
CC
= +5V, V
REF
= +2.5V, f
SAMPLE
= 200kHz, f
CLK
= 16 f
SAMPLE
, –In = +2.5V, unless otherwise specified.
ADS7817
ADS7817B
ADS7817C
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
ANALOG INPUT
Full-Scale Input Span
Absolute Input Voltage
+In – (–In)
+In
–In
–V
REF
–0.3
–0.3
+V
REF
V
CC
+0.3
4
6
6
6
6
6
6
6
6
6
6
6
6
V
V
V
pF
μ
A
Capacitance
Leakage Current
15
±
1
6
6
6
6
SYSTEM PERFORMANCE
Resolution
No Missing Codes
Integral Linearity Error
Differential Linearity Error
Offset Error
Gain Error
Noise
Common-Mode Rejection
Power Supply Rejection
12
6
6
Bits
Bits
LSB
(1)
LSB
LSB
LSB
μ
Vrms
dB
dB
11
12
6
±
1
±
1
±
1
±
0.5
63
80
82
±
2
±
2
±
6
±
4
±
0.8
±
0.7
6
6
6
6
6
±
2
±
1
6
6
±
0.5
±
0.4
6
6
6
6
6
±
1
±
1
6
6
SAMPLING DYNAMICS
Conversion Time
Acquisition Time
Throughput Rate
12
6
6
Clk Cycles
Clk Cycles
kHz
1.5
6
6
200
6
6
DYNAMIC CHARACTERISTICS
Total Harmonic Distortion
V
IN
= 5.0Vp-p at 1kHz
V
IN
= 5.0Vp-p at 5kHz
V
IN
= 5.0Vp-p at 1kHz
V
IN
= 5.0Vp-p at 1kHz
–83
–81
71
86
6
6
6
6
6
6
6
6
dB
dB
dB
dB
SINAD
Spurious Free Dynamic Range
REFERENCE INPUT
Voltage Range
Resistance
0.1
2.5
6
6
6
6
V
CS = V
CC
5
5
20
1.3
0.001
6
6
6
6
6
6
6
6
6
6
G
G
μ
A
μ
A
μ
A
CS = GND, f
= 0Hz
At Code FF8h
f
SAMPLE
= 12.5kHz
CC
Current Drain
100
20
3
6
6
6
6
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
3
+V
CC
+0.
3
0.8
6
6
6
6
6
6
6
6
6
6
V
V
V
V
–0.3
3.5
0.4
6
6
6
6
Binary Two’s Complement
POWER SUPPLY REQUIREMENTS
V
CC
Quiescent Current
Specified Performance
4.75
5.25
800
6
6
6
6
6
6
V
μ
A
μ
A
μ
A
μ
A
460
40
330
6
6
6
6
6
6
f
SAMPLE
= 12.5kHz
(2, 3)
f
SAMPLE
= 12.5kHz
(3)
CS =V
CC
, f
SAMPLE
= 0Hz
Power Down
3
6
6
TEMPERATURE RANGE
Specified Performance
–40
+85
6
6
6
6
°
C
6
Specifications same as ADS7817.
NOTE: (1) LSB means Least Significant Bit, with V
REF
equal to +2.5V, one LSB is 1.22mV. (2) f
CLK
= 3.2MHz, CS = V
CC
for 241 clock cycles out of every 256.
(3) See the Power Dissipation section for more information regarding lower sample rates.
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.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADS7817B | 12-Bit Differential Input Micro Power Sampling ANALOG-TO-DIGITAL CONVERTER |
| ADS7817C | 12-Bit Differential Input Micro Power Sampling ANALOG-TO-DIGITAL CONVERTER |
| ADS7818 | 2SC5161 |
| ADS7818E | 2SC5161 |
| ADS7818EB | 2SC5161 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADS7817B | 制造商:BB 制造商全稱:BB 功能描述:12-Bit Differential Input Micro Power Sampling ANALOG-TO-DIGITAL CONVERTER |
| ADS7817C | 制造商:BB 制造商全稱:BB 功能描述:12-Bit Differential Input Micro Power Sampling ANALOG-TO-DIGITAL CONVERTER |
| ADS7817E | 制造商:TI 制造商全稱:Texas Instruments 功能描述:12-Bit Differential Input Micro Power Sampling |
| ADS7817E/250 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit Differential In MicroPwr 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 |
| ADS7817E/250G4 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit Differential In MicroPwr 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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