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参数资料
| 型号： | AD7797BRUZ-REEL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 16/24页 |
| 文件大小： | 0K |
| 描述： | IC ADC 24BIT SIG-DEL 1CH 16TSSOP |
| 标准包装： | 2,500 |
| 位数： | 24 |
| 采样率（每秒）： | 123 |
| 数据接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 1.6mW |
| 电压电源： | 模拟和数字 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 16-TSSOP |
| 包装： | 带卷 (TR) |
| 输入数目和类型： | 1 个差分，单极；1 个差分，双极 |
| 配用： | EVAL-AD7797EBZ-ND - BOARD EVALUATION FOR AD7797 |
AD7796/AD7797
Rev. A | Page 23 of 24
APPLICATIONS
The AD7796/AD7797 offer a high resolution analog-to-digital
function. Because the analog-to-digital function is provided by
a Σ-Δ architecture, the parts are more immune to noisy
environments, making them ideal for use in sensor
measurement, and industrial and process-control applications.
WEIGH SCALES
Figure 17 shows the AD7796/AD7797 being used in a weigh
scale application. The load cell is arranged in a bridge network
and gives a differential output voltage between its OUT+ and
OUT– terminals. Assuming a 5 V excitation voltage, the full-
scale output range from the transducer is 10 mV when the
sensitivity is 2 mV/V. The excitation voltage for the bridge can
be used to directly provide the reference for the ADC because
the reference input range includes the supply voltage. This
allows a ratiometric measurement. Therefore, variations of the
excitation voltage do not affect the measurement.
The on-chip temperature sensor can be used for temperature
compensation of the bridge so the variation of the sensor
resistance with temperature drift can be monitored and the
conversions from the bridge can be compensated.
AD7796/AD7797
AIN(+)
AIN(–)
INTERNAL
CLOCK
AVDD
DVDD
REFIN(–)
REFIN(+)
DOUT/RDY
DIN
SCLK
MUX
GND
CLK
Σ-Δ
ADC
VDD
×128
TEMP
SENSOR
SERIAL
INTERFACE
AND
CONTROL
LOGIC
CS
IN+
IN–
OUT–
OUT+
06
08
3
-01
7
Figure 17. Weigh Scales Using the AD7796/AD7797
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7798 | 制造商:AD 制造商全称: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 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1 系列:microPOWER™ 位数:8 采样率（每秒）:1M 数据接口:串行，SPI? 转换器数目:1 功率耗散（最大）:- 电压电源:模拟和数字 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:24-VFQFN 裸露焊盘 供应商设备封装:24-VQFN 裸露焊盘（4x4） 包装:Digi-Reel® 输入数目和类型:8 个单端，单极 产品目录页面:892 (CN2011-ZH PDF) 其它名称:296-25851-6 |
| AD7798BRUZ-REEL | 功能描述:IC ADC 16BIT 3CH LP 16-TSSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:16 采样率（每秒）:45k 数据接口:串行 转换器数目:2 功率耗散（最大）:315mW 电压电源:模拟和数字 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) 输入数目和类型:2 个单端，单极 |
| AD7799 | 制造商:AD 制造商全称:Analog Devices 功能描述:Low Power, 24-Bit/16-Bit Sigma-Delta ADC with In-Amp |
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