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| 型號： | AD7793BRUZ-REEL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 1/33頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 24BIT 3CH LP 16-TSSOP |
| 設(shè)計(jì)資源： | Fully Isolated Input Module Based on AD7793 and ADuM5401(CN0066) Fully Isolated Input Module Based on AD7793, ADuM5401, and a High Performance In-Amp (CN0067) |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 位數(shù)： | 24 |
| 采樣率（每秒）： | 500 |
| 數(shù)據(jù)接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 功率耗散（最大）： | 2.5mW |
| 電壓電源： | 模擬和數(shù)字 |
| 工作溫度： | -40°C ~ 105°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-TSSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-TSSOP |
| 包裝： | 帶卷 (TR) |
| 輸入數(shù)目和類型： | 3 個差分，單極；3 個差分，雙極 |
| 配用： | EVAL-AD7793EBZ-ND - BOARD EVALUATION FOR AD7793 |
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3-Channel, Low Noise, Low Power, 16-/24-Bit
∑-Δ ADC with On-Chip In-Amp and Reference
AD7792/AD7793
Rev. B
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
2004–2007 Analog Devices, Inc. All rights reserved.
FEATURES
Up to 23 bits effective resolution
RMS noise
40 nV @ 4.17 Hz
85 nV @ 16.7 Hz
Current: 400 μA typical
Power-down: 1 μA maximum
Low noise programmable gain instrumentation amp
Band gap reference with 4 ppm/°C drift typical
Update rate: 4.17 Hz to 470 Hz
3 differential inputs
Internal clock oscillator
Simultaneous 50 Hz/60 Hz rejection
Programmable current sources
On-chip bias voltage generator
Burnout currents
Power supply: 2.7 V to 5.25 V
–40°C to +105°C temperature range
Independent interface power supply
16-lead TSSOP package
Interface
3-wire serial
SPI, QSPI, MICROWIRE, and DSP compatible
Schmitt trigger on SCLK
APPLICATIONS
Thermocouple measurements
RTD measurements
Thermistor measurements
Gas analysis
Industrial process control
Instrumentation
Portable instrumentation
Blood analysis
Smart transmitters
Liquid/gas chromatography
6-digit DVM
FUNCTIONAL BLOCK DIAGRAM
0485
5-
00
1
DOUT/RDY
DIN
SCLK
CS
DVDD
SERIAL
INTERFACE
AND
CONTROL
LOGIC
Σ-Δ
ADC
AD7792: 16-BIT
AD7793: 24-BIT
AIN1(+)
AIN1(–)
AIN2(+)
AIN2(–)
AVDD
GND
MUX
VBIAS
BAND GAP
REFERENCE
INTERNAL
CLOCK
CLK
GND
AVDD
REFIN(–)/AIN3(–)
IOUT1
IOUT2
AVDD
IN-AMP
BUF
REFIN(+)/AIN3(+)
Figure 1.
GENERAL DESCRIPTION
The AD7792/AD7793 are low power, low noise, complete
analog front ends for high precision measurement applications.
The AD7792/AD7793 contain a low noise 16-/24-bit ∑-Δ ADC
with three differential analog inputs. The on-chip, low noise
instrumentation amplifier means that signals of small ampli-
tude can be interfaced directly to the ADC. With a gain
setting of 64, the rms noise is 40 nV when the update rate
equals 4.17 Hz.
The devices contain a precision low noise, low drift internal
band gap reference and can accept an external differential
reference. Other on-chip features include programmable
excitation current sources, burnout currents, and a bias voltage
generator. The bias voltage generator sets the common-mode
voltage of a channel to AVDD/2.
The devices can be operated with either the internal clock or an
external clock. The output data rate from the parts is software-
programmable and can be varied from 4.17 Hz to 470 Hz.
The parts operate with a power supply from 2.7 V to 5.25 V.
They consume a current of 400 μA typical and are housed in a
16-lead TSSOP package.
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| AD7793BRUZ-REEL1 | 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 |
| AD7794 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Low Power, 24-Bit Sigma-Delta ADC with In-Amp and Embedded Reference (6 Channel) |
| AD7794_07 | 制造商:AD 制造商全稱:Analog Devices 功能描述:6-Channel, Low Noise, Low Power, 24-/16-Bit ?￡-?? ADC with On-Chip In-Amp and Reference |
| AD7794BRU | 功能描述:IC ADC 24BIT 6CH LP 24-TSSOP RoHS:否 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:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個單端，單極；1 個單端，雙極 |
| AD7794BRU-REEL | 功能描述:IC ADC 24BIT 6CH LP 24-TSSOP RoHS:否 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:1,000 系列:- 位數(shù):16 采樣率（每秒）:45k 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:315mW 電壓電源:模擬和數(shù)字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類型:2 個單端，單極 |
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