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AD7780BRZ-REEL
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Product Detailed Parameters
- Description：IC ADC 24BIT SIGMA-DELTA 14SOIC
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Number of Bits：24
- Sampling Rate (Per Second)：16.7
- Number of Inputs：1
- Input Type：Differential
- Data Interface：SPI
- Configuration：PGA-ADC
- Ratio - S/H:ADC：-
- Number of A/D Converters：1
- Architecture：Sigma-Delta
- Reference Type：External
- Voltage - Supply, Analog：2.7V ~ 5.25V
- Voltage - Supply, Digital：2.7V ~ 5.25V
- Features：PGA
- Operating Temperature：-40°C ~ 105°C
- Package / Case：14-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：14-SOIC
- Mounting Type：Surface Mount
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Overview
The AD7780BRZ-REEL is a 24-bit Sigma-Delta analog-to-digital converter (ADC) from Analog Devices, packaged in a 16-lead TSSOP. It features pin-programmable gain settings of 1 or 128 and selectable update rates of 10 Hz or 16.7 Hz. The device operates on a single supply voltage ranging from 2.7 V to 5.25 V for both analog and digital domains. Typical current consumption is 115 μA at Gain 1 and 330 μA at Gain 128. It includes an internal oscillator, a bridge power-down switch, and a 2-wire serial interface.
Feature Summary
- Pin-programmable filter response and in-amp gain selection
- Integrated low-noise programmable gain amplifier
- Internal clock oscillator with simultaneous 50 Hz/60 Hz rejection
- On-chip bridge power-down switch for sensor isolation
Applications
- Weigh scales
- Pressure measurement
- Industrial process control
- Portable instrumentation
Procurement Notes
Verify the specific suffix REEL indicates tape-and-reel packaging upon ordering. Confirm the BRZ designation corresponds to the industrial temperature range and RoHS compliance status required for your assembly process. Ensure compatibility with the 16-lead TSSOP footprint during PCB layout review.
Selection Notes
Select this component when a complete front-end solution for bridge sensors is required without external amplifiers. Consider the 16.7 Hz rate for faster settling times or the 10 Hz rate for superior stop-band attenuation against mechanical vibrations. Verify that the differential input range matches the sensor output relative to the chosen gain setting.
Part Context
This part belongs to the AD7780 family of ultralow power sigma-delta ADCs designed specifically for precision bridge sensor applications. It integrates the modulator, PGA, and digital filter into a single chip to simplify system design. The BRZ variant denotes the standard industrial grade package configuration available from Analog Devices.
Replacement Considerations
Public confirmed substitute part numbers are not provided in the source documentation.
