| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Number of Pins | 24 Pin |
| Supply Voltage (DC) | 2.70 V (min) |
| Case/Package | SOIC-24 |
| Supply Current | 22.3 mA |
| Number of Bits | 24 Bit |
| Power Dissipation | 32.5 mW |
| Sample Rate | 600 Hz |
| Resolution (Bits) | 24.0 Bit |
| Input Impedance | 9.00 GΩ |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Tube, Bulk |
The AD7730LBRZ is a complete analog front end Bridge Transducer Analog-to-digital Converter (ADC) 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. 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. It contains self-calibration and system calibration options and features an offset drift of less than 5nV/°C and a gain drift of less than 2ppm/°C.
● Operates from a single 5V supply
● Buffered differential inputs
● Programmable filter cutoffs
● Specified for drift over time
● 2-channel programmable gain front end
● On-chip DAC for offset/TARE removal
● FASTStep™ Mode
● AC or DC excitation
● Single supply operation
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