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AD7792 数据手册 ( 数据表 )

产品描述 (功能)
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The AD7792/AD7793 are low power, low noise, complete analog front ends for high precision measurement applications. The AD7792/AD7793 contain a low noise 16-/24-bit ∑-Δ ADC with three differential analog 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 40 nV when the update rate equals 4.17 Hz.

   Up to 23 bits effective resolution
   RMS noise
   40 nV @ 4.17 Hz
   85 nV @ 16.7 Hz
   Current: 400 μA typical
   Power-down: 1 μA maximum
   Low noise programmable gain instrumentation amp
   Band gap reference with 4 ppm/°C drift typical
   Update rate: 4.17 Hz to 470 Hz
   3 differential inputs
   Internal clock oscillator
   Simultaneous 50 Hz/60 Hz rejection
   Programmable current sources
   On-chip bias voltage generator
   Burnout currents
   Power supply: 2.7 V to 5.25 V
   –40°C to +105°C temperature range
   Independent interface power supply
   16-lead TSSOP package
       3-wire serial
       SPI®, QSPI™, MICROWIRE™, and DSP compatible
       Schmitt trigger on SCLK

   Thermocouple measurements
   RTD measurements
   Thermistor measurements
   Gas analysis
   Industrial process control
   Portable instrumentation
   Blood analysis
   Smart transmitters
   Liquid/gas chromatography
   6-digit DVM


产品描述 (功能)
Low-Power, Low-Voltage, 24-Bit ∆Σ ADC
Cirrus Logic
Low-Power, Low-Voltage, 24 - Bit ∆Σ ADC
Cirrus Logic
Low-Power, Low-Voltage, 24 - Bit ∆Σ ADC
Cirrus Logic
Low-Voltage, Low-Power, 16-Bit Smart ADC
Maxim Integrated
24-bit ADC with Ultra-low-noise Amplifier
Cirrus Logic
24-Bit 192kHz ∆Σ ADC
Asahi Kasei Microdevices
96kHz 24-Bit ∆Σ ADC
Asahi Kasei Microdevices
Low-Power, 12-Bit Sampling ADC with Internal Reference and Power-Down
Maxim Integrated
24-Bit 48kHz ∆Σ ADC with Selector/PGA/ALC
Asahi Kasei Microdevices
Single-ended 24-Bit 192kHz ∆Σ ADC
Asahi Kasei Microdevices

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