(China (Mainland))
Product Summary
The AD7730LBRZLBRZ is a bridge transducer ADC. The AD7730LBRZLBRZ is a complete analog front end for weigh-scale and pressure measurement applications. The device accepts lowlevel 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 serial interface on the part can be configured for three-wire operation and is compatible with microcontrollers and digital signal processors. The AD7730LBRZ 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 AD7730LBRZ is available in a 24-pin plastic DIP, a 24-lead SOIC and 24-lead TSSOP package. The AD7730LBRZL is available in a 24-lead SOIC and 24-lead TSSOP package.
Parametrics
AD7730LBRZLBRZ absolute maximum ratings: (1)AVDD to AGND: － 0.3 V to +7 V; (2)AVDD to DGND: － 0.3 V to +7 V; (3)DVDD to AGND: － 0.3 V to +7 V; (4)DVDD to DGND: － 0.3 V to +7 V; (5)AGND to DGND: － 5 V to +0.3 V; (6)AVDD to DVDD: － 2 V to +5 V; (7)Analog Input Voltage to AGND: － 0.3 V to AVDD + 0.3 V; (8)Reference Input Voltage to AGND: － 0.3 V to AVDD + 0.3 V; (9)AIN/REF IN Current (Indefinite): 30 mA; (10)Digital Input Voltage to DGND: － 0.3 V to DVDD + 0.3 V; (11)Digital Output Voltage to DGND: － 0.3 V to DVDD + 0.3 V; (12)Output Voltage (ACX, ACX, D0, D1)to DGND: － 0.3 V to AVDD + 0.3 V.
Features
AD7730LBRZLBRZ features: (1)Resolution of 230,000 Counts (Peak-to-Peak); (2)Offset Drift: 5 nV/°C; (3)Gain Drift: 2 ppm/°C; (4)Line Frequency Rejection: >150 dB; (5)Buffered Differential Inputs; (6)Programmable Filter Cutoffs; (7)Specified for Drift Over Time; (8)Operates with Reference Voltages of 1 V to 5 V.
Diagrams
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 AD7730LBRZ |
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IC ADC TRANSDUCER BRIDGE 24SOIC |
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AD7730LBRZ-REEL |
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IC ADC TRANSDUCER BRIDGE 24SOIC |
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