AD7794 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

AD7794
Manufacturer

ADI
ChipWorker Part#

CW139624300
Description

6Channel, Low Noise, Low Power, 24-/16Bit ∑-Δ ADC with On-Chip In-Amp and Reference
Documentation

Datasheet

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AD7794 Specifications

Attribute	Attribute Value

Part Number	AD7794
Manufacturer	ADI
ChipWorker Part#	CW139624300
Documentation	Datasheet
	expand all
Product Lifecycle Status	Active

Product Description

GENERAL DESCRIPTION
The AD7794/AD7795 are low power, low noise, complete analog front ends for high precision measurement applications. They contain a low noise, 24-/16-bit ∑-Δ ADC with six differential inputs. The on-chip low noise instrumentation amplifier means that signals of small amplitude can be
interfaced directly to the ADC.
FEATURES
Up to 23 effective bits
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
Six differential analog inputs
Internal clock oscillator
Simultaneous 50 Hz/60 Hz rejection
Reference detect
Programmable current sources
On-chip bias voltage generator
Burnout currents
Low-side power switch
Power supply: 2.7 V to 5.25 V
Temperature range:
B grade: –40°C to +105°C
C grade: –40°C to +125°C
Independent interface power supply
24-lead TSSOP
3-wire serial interface
SPI®, QSPI™, MICROWIRE™, and DSP compatible
Schmitt trigger on SCLK
APPLICATIONS
Temperature measurement
Pressure measurement
Weigh scales
Strain gage transducers
Gas analysis

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Ordering Information

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- Carefully tested and packaged by ChipWorker
- Vacuum packed
- Anti-static packaging
- Anti-vibration foam
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- Decapsulation control
- X-ray inspection
- XRF inspection
- Electrical testing
- Surface testing

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