(China (Mainland))
Product Summary
The AD7714ARS-5 is a complete analog front end for low-frequency measurement applications. The device accepts low level signals directly from a transducer and outputs a serial digital word. The AD7714ARS-5 employs a sigma-delta conversion technique to realize up to 24 bits of no missing codes performance. The input signal is applied to a proprietary programmable gain front end based around an analog modulator. The modulator output is processed by an onchip digital filter. The applications of the AD7714ARS-5 include: Portable Industrial Instruments, Portable Weigh Scales, Loop-Powered Systems, Pressure Transducers.
Parametrics
AD7714ARS-5 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)Analog Input Voltage to AGND: –0.3 V to AVDD + 0.3 V; (6)Reference Input Voltage to AGND: –0.3 V to AVDD + 0.3 V; (7)Digital Input Voltage to DGND: –0.3 V to DVDD + 0.3 V; (8)Digital Output Voltage to DGND: –0.3 V to DVDD + 0.3 V; (9)Operating Temperature Range: Commercial (A Version): –40℃ to +85℃; Extended (Y Version): –40℃ to +105℃; (10)Storage Temperature Range: –65℃ to +150℃; (11)Junction Temperature: +150℃; (12)Plastic DIP Package, Power Dissipation: 450 mW; θJA Thermal Impedance: 105℃/W; Lead Temperature (Soldering, 10 sec): +260℃.
Features
AD7714ARS-5 features: (1)Charge Balancing ADC: 24 Bits No Missing Codes; 0.0015% Nonlinearity; (2)Five-Channel Programmable Gain Front End: Gains from 1 to 128; Can Be Configured as Three Fully Differential; Inputs or Five Pseudo-Differential Inputs; (3)Three-Wire Serial Interface: SPI, QSPI, MICROWIRE and DSP Compatible; (4)5 V Operation; (5)Low Noise (<150 nV rms); (6)Low Current (350μA typ) with Power-Down (5 μA typ).
Diagrams
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 AD7714ARS-5 |
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IC ADC SIGNAL COND 5V 28-SSOP |
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AD7714ARS-5REEL |
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IC ADC 24BIT SIGMA-DELTA 28SSOP |
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