AD7730_12中文资料PDF规格书
AD7730_12规格书详情
GENERAL DESCRIPTION
The AD7730 is a complete analog front end for weigh-scale and pressure measurement applications. The device accepts low level signals directly from a transducer and outputs a serial digital word. The input signal is applied to a proprietary programmable gain front end based around an analog modulator.
The modulator output is processed by a low pass programmable digital filter, allowing adjustment of filter cutoff, output rate and settling time.
The part features two buffered differential programmable gain analog inputs as well as a differential reference input. The part operates from a single +5 V supply. It accepts four unipolar analog input ranges: 0 mV to +10 mV, +20 mV, +40 mV and +80 mV and four bipolar ranges: ±10 mV, ±20 mV, ±40 mV and ±80 mV. The peak-to-peak resolution achievable directly from the part is 1 in 230,000 counts. An on-chip 6-bit DAC allows the removal of TARE voltages. Clock signals for synchronizing ac excitation of the bridge are also provided.
The serial interface on the part can be configured for three-wire operation and is compatible with microcontrollers and digital signal processors. The AD7730 contains self-calibration and system calibration options, and features an offset drift of less than 5 nV/°C and a gain drift of less than 2 ppm/°C.
The AD7730 is available in a 24-pin plastic DIP, a 24-lead SOIC and 24-lead TSSOP package. The AD7730L is available in a 24-lead SOIC and 24-lead TSSOP package.
KEY FEATURES
Resolution of 230,000 Counts (Peak-to-Peak)
Offset Drift: 5 nV/°C
Gain Drift: 2 ppm/°C
Line Frequency Rejection: >150 dB
Buffered Differential Inputs
Programmable Filter Cutoffs
Specified for Drift Over Time
Operates with Reference Voltages of 1 V to 5 V
ADDITIONAL FEATURES
Two-Channel Programmable Gain Front End
On-Chip DAC for Offset/TARE Removal
FASTStep™ Mode
AC or DC Excitation
Single Supply Operation
APPLICATIONS
Weigh Scales
Pressure Measurement
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
ADI/亚德诺 |
21+ |
原封装 |
13880 |
公司只售原装,支持实单 |
询价 | ||
AD |
23+ |
BGA |
18000 |
询价 | |||
ADI |
2018+ |
SMD |
571 |
原装房间现货! |
询价 | ||
AD |
2015+ |
SOP/DIP |
19889 |
一级代理AD原装现货,特价热卖! |
询价 | ||
ADI |
22+23+ |
DIP |
18571 |
绝对原装正品全新进口深圳现货 |
询价 | ||
AD |
DIP |
60 |
询价 | ||||
AD |
24+ |
DIP |
90000 |
一级代理商进口原装现货、价格合理 |
询价 | ||
AD |
16+ |
原厂封装 |
10000 |
全新原装正品,代理优势渠道供应,欢迎来电咨询 |
询价 | ||
AD |
2021+ |
DIP |
1600 |
自家库存,百分之百原装 |
询价 | ||
AnalogDevices |
DIP |
1100 |
AD代理旗下一级分销商,主营AD全系列产品 |
询价 |