This website uses cookies. By using this site, you consent to the use of cookies. For more information, please take a look at our Privacy Policy.

Images are for reference only,

See Technical Specifications

AD7730BR +BOM

Analog to Digital Converters - ADC CMOS 24-Bit Bridge Transducer

Manufacturer:

ADI
Mfr.Part #:

AD7730BR
Datasheet:

AD7730BR Datasheet (PDF)
Pbfree Code:

No
Part Life Cycle Code:

Obsolete
Pin Count:

24
Reach Compliance Code:

not_compliant
EDA/CAD Models:

Request Free CAD Models for AD7730BR

Email: [email protected]

Skype: live:.cid.ab6b29428937b76

Tel: +852 95804164

AD7730BR General Description

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.

Specifications

Source Content uid	AD7730BR	Pbfree Code	No
Part Life Cycle Code	Obsolete	Pin Count	24
Reach Compliance Code	not_compliant	HTS Code	8542.39.00.01
Analog Input Voltage-Max	0.8 V	Analog Input Voltage-Min	-0.8 V
Converter Type	ADC, DELTA-SIGMA	JESD-30 Code	R-PDSO-G24
JESD-609 Code	e0	Length	15.4 mm
Linearity Error-Max (EL)	0.0018%	Moisture Sensitivity Level	3
Number of Analog In Channels	2	Number of Bits	19
Number of Functions	1	Number of Terminals	24
Operating Temperature-Max	85 °C	Operating Temperature-Min	-40 °C
Output Bit Code	BINARY	Output Format	SERIAL
Peak Reflow Temperature (Cel)	240	Qualification Status	Not Qualified
Seated Height-Max	2.65 mm	Supply Voltage-Nom	5 V
Surface Mount	YES	Technology	CMOS
Temperature Grade	INDUSTRIAL	Terminal Finish	TIN LEAD
Terminal Form	GULL WING	Terminal Pitch	1.27 mm
Terminal Position	DUAL	Width	7.5 mm