(Hong Kong)
Product Summary
The AD7799BRUZ is 24-Bit/16-Bit Sigma-Delta ADC with in-amp for low frequency measurement applications. The device contains a low noise 24-bit ADC with three differential inputs. The on-chip low noise instrumentation amplifier means that signals of small amplitude can be interfaced directly to the ADC. With a gain setting of 64, the rms noise is 65 nV for the AD7799 at 16.6 Hz. The AD7799BRUZ contains a low side power switch which is useful in bridge applications. The switch allows the bridge to be disconnected from the power supply when conversions are not being performed and this will minimise power consumption.
Parametrics
AD7799BRUZ absolute maximum ratings: (1)AVDD to GND: -0.3V to +7V; (2)DVDD to GND: -0.3V to +7V; (3)Analog Input Voltage to GND –0.3 V to AVDD + 0.3 V; (4)Reference Input Voltage to GND: –0.3 V to AVDD + 0.3 V; (5)Digital Input Voltage to GND: –0.3 V to DVDD + 0.3 V; (6)Digital Output Voltage to GND: –0.3 V to DVDD + 0.3 V; (7)AIN/digital Input Current: 10 mA; (8)Operating Temperature Range: –40 to +105℃; (9)Storage Temperature Range: –65 to +150℃; (10)Maximum Junction Temperature: 150℃.
Features
AD7799BRUZ features: (1)Resolution: 24-Bit; (2)Three Differential Analog Inputs; (3)Low Noise Programmable Gain Amp; (4)RMS noise: 65 nV (Gain = 64) at 16.6 Hz update rate; (5)Update Rate: 4 Hz to 500 Hz; (6)Power Supply: 2.7 V to 5.25 V operation; (7)Normal: 400 μA typ (AD7799); (8)Power-down: 1 μA max; (9)Simultaneous 50 Hz/60 Hz Rejection; (10)Two Programmable Digital Outputs; (11)Internal Clock Oscillator; (12)Reference Detect; (13)100 nA Burnout Currents; (14)Low Side Power Switch; (15)Independent Interface Power Supply; (16)16-Lead TSSOP.
Diagrams
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 AD7799BRUZ |
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IC ADC 24BIT SIG-DEL 3CH 16TSSOP |
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AD7799BRUZ-REEL |
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IC ADC 24BIT 3CH LP 16-TSSOP |
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