(Hong Kong)
Product Summary
The AD7730BRUZ 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 AD7730BRUZ features two buffered differential programmable gain analog inputs as well as a differential reference input. The peak-to-peak resolution achievable directly from the part is 1 in 230,000 counts. The AD7730BRUZ contains self-calibration and system calibration options, and features an offset drift of less than 5 nV/℃ and a gain drift of less than 2 ppm/℃. The applications of it are Weigh Scales and Pressure Measurement.
Parametrics
AD7730BRUZ 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 + 0.3V; (13)Operating Temperature Range: Industrial (B Version):–40℃ to +85℃; (14)Storage Temperature Range:–65℃ to +150℃; (15)Junction Temperature:+150℃.
Features
AD7730BRUZ features: (1)Resolution of 230,000 Counts (Peak-to-Peak); (2)Offset Drift: 5 nV/8℃; (3)Gain Drift: 2 ppm/8℃; (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; (9)Two-Channel Programmable Gain Front End; (10)On-Chip DAC for Offset/TARE Removal; (11)FASTStep Mode; (12)AC or DC Excitation; (13)Single Supply Operation.
Diagrams
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 AD7730BRUZ |
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IC ADC TRANSDUCER BRIDGE 24TSSOP |
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AD7730BRUZ-REEL |
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IC ADC BRIDGE TRANSDUCER 24TSSOP |
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AD7730BRUZ-REEL7 |
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IC ADC BRIDGE TRANSDUCER 24TSSOP |
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