AD7730BNZ

AD7730 is a bridge transducer ADC. The device accepts low level signals directly from a transducer and outputs of a serial digital word. The input signal is applied to a proprietary programmable gain and front end base around an analogue modulator. The modulator output is processed by a low pass programmable digital filter, allowing adjustment of filter cut-off, output rate and settling time. The part features two buffered differential programmable gain analogue inputs as well as a differential reference input. The part operates from a single +5V supply. The serial interface part can be configured for three-wire operation and is compatible with microcontrollers and digital signal processor. It is widely used in application such as weigh scales, pressure measurement.

• Resolution of 230,000 counts (peak-to-peak)
• Offset drift is 5nV/C, two-channel programmable gain front end
• Gain drift is 2ppm/C, on-chip DAC for offset/TARE removal
• Line frequency rejection is <gt/>150dB, FASTStep™ mode
• Buffered differential inputs, AC or DC excitation
• Programmable filter cut-offs
• Specified for drift over time
• Single supply operation, operates with reference voltages of 1V to 5V
• Operating temperature range is −40°C to +85°C
• Packaging style is 24-lead plastic dual in-line package [PDIP]

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party