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| 型號： | AD7791BRM-REEL |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | Low Power, Buffered 24-Bit Sigma-Delta ADC |
| 中文描述： | 1-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO10 |
| 封裝： | MSOP-10 |
| 文件頁數(shù)： | 1/20頁 |
| 文件大?。?/td> | 308K |
| 代理商： | AD7791BRM-REEL |
Low Power, Buffered 24-Bit
Sigma-Delta ADC
AD7791
FEATURES
Power
Supply: 2.5 V to 5.25 V operation
Normal: 75 μA max
Power-down: 1 μA max
RMS noise: 1.1 μV at 9.5 Hz update rate
19.5-bit p-p resolution (22 bits effective resolution)
Integral nonlinearity: 3.5 ppm typical
Simultaneous 50 Hz and 60 Hz rejection
Internal clock oscillator
Rail-to-rail input buffer
V
DD
monitor channel
Temperature range: –40°C to +105°C
10-lead MSOP
INTERFACE
3-wire serial
SPI, QSPI, MICROWIRE, and DSP compatible
Schmitt trigger on SCLK
APPLICATIONS
Smart transmitters
Battery applications
Portable instrumentation
Sensor measurement
Temperature measurement
Pressure measurement
Weigh scales
4 to 20 mA loops
Rev.
0
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective companies.
Tel: 781.329.4700Fax: 781.326.8703
www.analog.comFUNCTIONAL BLOCK DIAGRAM
DOUT/RDY
DIN
SCLK
CS
04227-0-001
SERIAL
INTERFACE
CLOCK
Σ
-
ADC
AIN(–)
AIN(+)
GND
REFIN(+) REFIN(–)
AD7791
V
DD
BUF
V
DD
GND
Figure 1.
GENERAL DESCRIPTION
The AD7791 is a low power, complete analog front end for
low frequency measurement applications. It contains a low
noise 24-bit ∑- ADC with one differential input that can be
buffered or unbuffered.
The device operates from an internal clock. Therefore, the user
does not have to supply a clock source to the device. The output
data rate from the part is software programmable and can be
varied from 9.5 Hz to 120 Hz, with the rms noise equal to
1.1 μV at the lower update rate. The internal clock frequency
can be divided by a factor of 2, 4, or 8, which leads to a reduc-
tion in the current consumption. The update rate, cutoff
frequency, and settling time will scale with the clock frequency.
The part operates with a power supply from 2.5 V to 5.25 V.
When operating from a 3 V supply, the power dissipation for
the part is 225 μW maximum. It is housed in a 10-lead MSOP.
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| AD7791BRMZ | 功能描述:IC ADC 24BIT BUFFERED LP 10MSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:microPOWER™ 位數(shù):8 采樣率（每秒）:1M 數(shù)據(jù)接口:串行，SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:- 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:24-VQFN 裸露焊盤（4x4） 包裝:Digi-Reel® 輸入數(shù)目和類型:8 個單端，單極 產(chǎn)品目錄頁面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6 |
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| AD7792 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Low Power, 16/24-Bit Sigma-Delta ADC with Low-Noise In-Amp and Embedded Reference |
| AD7792_07 | 制造商:AD 制造商全稱:Analog Devices 功能描述:3-Channel, Low Noise, Low Power, 16-/24-Bit ?￡-?? ADC with On-Chip In-Amp and Reference |
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