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參數資料
| 型號： | AD7797BRUZ-REEL |
| 廠商： | Analog Devices Inc |
| 文件頁數： | 1/24頁 |
| 文件大小： | 0K |
| 描述： | IC ADC 24BIT SIG-DEL 1CH 16TSSOP |
| 標準包裝： | 2,500 |
| 位數： | 24 |
| 采樣率（每秒）： | 123 |
| 數據接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 轉換器數目： | 1 |
| 功率耗散（最大）： | 1.6mW |
| 電壓電源： | 模擬和數字 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-TSSOP（0.173"，4.40mm 寬） |
| 供應商設備封裝： | 16-TSSOP |
| 包裝： | 帶卷 (TR) |
| 輸入數目和類型： | 1 個差分，單極；1 個差分，雙極 |
| 配用： | EVAL-AD7797EBZ-ND - BOARD EVALUATION FOR AD7797 |
Low Power, 16-/24-Bit Sigma-Delta ADC
for Bridge Sensors
AD7796/AD7797
Rev. A
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
2006 Analog Devices, Inc. All rights reserved.
FEATURES
RMS noise: 65 nV
Instrumentation amp
Temperature sensor
Internal clock oscillator
Simultaneous 50 Hz/60 Hz rejection
Update rate: 4.17 Hz to 123 Hz
Current: 250 μA typ
Power-down: 1 μA
Power supply: 2.7 V to 5.25 V
–40°C to +85°C temperature range
Independent interface power supply
16-lead TSSOP
INTERFACE
3-wire serial
SPI, QSPI, MICROWIRE, and DSP compatible
Schmitt trigger on SCLK
APPLICATIONS
Weigh scales
Strain gages
Industrial process control
Instrumentation
Portable instrumentation
GENERAL DESCRIPTION
The AD7796/AD7797 are complete, analog front ends for high
precision, bridge sensor applications such as weigh scales. The
AD7796/AD7797 contain a Σ-Δ ADC capable of 16-/24-bit
resolution, respectively. The on-chip instrumentation amplifier
has a fixed gain of 128, allowing small amplitude signals such as
those from bridge sensors to be directly interfaced to the ADC.
Each part has one differential input and contains a temperature
sensor that is internally connected to the ADC. This sensor can
be used to perform temperature compensation of the bridge.
The devices can be operated with 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 123 Hz.
The AD7796/AD7797 operate with a power supply from 2.7 V
to 5.25 V. Each part consumes a current of 250 μA typical and is
housed in a 16-lead TSSOP.
FUNCTIONAL BLOCK DIAGRAM
AD7796/
AD7797
DOUT/RDY
DIN
SCLK
AIN(+)
AIN(–)
MUX
GND
Σ-Δ
ADC
AVDD
×128
REFERENCE
TEMP
SENSOR
INTERNAL
CLOCK
GND AVDD
REFIN(–)
REFIN(+)
CLK
AD7796: 16-BIT ADC
AD7797: 24-BIT ADC
SERIAL
INTERFACE
AND
CONTROL
LOGIC
CS
DVDD
06
08
3-
00
1
Figure 1.
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相關代理商/技術參數 |
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| AD7798 | 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 |
| AD7798BRU | 制造商:Analog Devices 功能描述:ADC SGL DELTA-SIGMA 0.47KSPS 16BIT SERL 16TSSOP - Bulk |
| AD7798BRUZ | 功能描述:IC ADC 16BIT SIG-DEL 3CH 16TSSOP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1 系列:microPOWER™ 位數:8 采樣率（每秒）:1M 數據接口:串行，SPI? 轉換器數目:1 功率耗散（最大）:- 電壓電源:模擬和數字 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 供應商設備封裝:24-VQFN 裸露焊盤（4x4） 包裝:Digi-Reel® 輸入數目和類型:8 個單端，單極 產品目錄頁面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6 |
| AD7798BRUZ-REEL | 功能描述:IC ADC 16BIT 3CH LP 16-TSSOP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:16 采樣率（每秒）:45k 數據接口:串行 轉換器數目:2 功率耗散（最大）:315mW 電壓電源:模擬和數字 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） 供應商設備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數目和類型:2 個單端，單極 |
| AD7799 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Low Power, 24-Bit/16-Bit Sigma-Delta ADC with In-Amp |
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