AD7730BR - ADI

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

Part No

AD7730BR
Manufacturer

ADI
ChipWorker Part#

CW50103464
Category

Analog to Digital, ADC IC
Package

SOIC-24
Description

ADC Single Delta-Sigma 1.2KSPS 24Bit Serial 24Pin SOIC W
Documentation

Datasheet

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AD7730BR Specifications

Attribute	Attribute Value

Part Number	AD7730BR
Manufacturer	ADI
ChipWorker Part#	CW50103464
Category	Analog to Digital, ADC IC
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	24 Pin
Case/Package	SOIC-24
Power Rating	125 mW
Number of Circuits	1 Circuit
Number of Channels	1 Channel
Number of Bits	24 Bit
Power Dissipation	125 W
Resolution (Bits)	24.0 Bit
Input Impedance	9.00 GΩ
Number of ADCs	1 ADC
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Power Dissipation (Max)	125 mW
Number of Input Channels	2 Channel
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Size-Height	2.35 mm
Product Lifecycle Status	Active
Packaging	Tube
RoHS	Non-Compliant
Lead-Free Status	Contains Lead
Mil-Spec	No

Product Description

Product Details
The AD7730 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 input signal is applied to a proprietary programmable gain front end based around an analog modulator. The modulator output is processed by a low pass programmable digital filter, allowing adjustment of filter cutoff, output rate and settling time.
The part features two buffered differential programmable gain analog inputs as well as a differential reference input. The part operates from a single +5 V supply. It accepts four unipolar analog input ranges: 0 mV to ±10 mV, +20 mV, +40 mV and +80 mV and four bipolar ranges: ±10 mV, ±20 mV, ±40 mV and ±80 mV. The peak-to-peak resolution achievable directly from the part is 1 in 230,000 counts. An on-chip 6-bit DAC allows the removal of TARE voltages. Clock signals for synchronizing ac excitation of the bridge are also provided.
The serial interface on the part can be configured for three-wire operation and is compatible with microcontrollers and digital signal processors. The AD7730 contains self-calibration and system calibration options, and features an offset drift of less than 5 nV/°C and a gain drift of less than 2 ppm/°C. The part is available in a 24-pin plastic DIP, a 24-lead SOIC and 24-lead TSSOP package.
### Features and Benefits
Resolution of 230,000 Counts (Peak-to-Peak)
Offset Drift: 5 nV/°C
Gain Drift: 2 ppm/°C
Line Frequency Rejection: >150 dB
Buffered Differential Inputs
Programmable Filter Cutoffs
Specified for Drift Over Time
Operates with Reference Voltages of 1 V to 5 V

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