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Updated at 17/06/2025 10:30:15(UTC+8)

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Description

Product Details
The AD7716 is a signal processing block for data acquisition systems. It is capable of processing four channels with bandwidths of up to 584 Hz. Resolution is 22 bits and the usable dynamic range varies from 111 dB with an input bandwidth of 36.5 Hz to 99 dB with an input bandwidth of 584 Hz.
The device consists of four separate A/D converter channels that are implemented using sigma-delta technology. Sigma-delta ADCs include on-chip digital filtering and, thus, the system filtering requirements are eased.
Three address pins program the device address. This allows a data acquisition system with up to 32 channels to be set up in a simple fashion. The output word from the device contains 32 bits of data. One bit is determined by the state of the DIN1 input and may be used, for example, in an ECG system with an external pacemaker detect circuit to indicate that the output word is invalid because of the presence of a pacemaker pulse.
### Features and Benefits
22-Bit Sigma-Delta ADC
Dynamic Range of 105 dB (146 Hz Input)
60.003% Integral Nonlinearity
On-Chip Low-Pass Digital Filter
Cutoff Programmable from 584 Hz to 36.5 Hz
Linear Phase Response
Five Line Serial I/O
Twos Complement Coding
Easy Interface to DSPs and Microcomputers
Software Control of Filter Cutoff
±5 V Supply
Low Power Operation: 50 mW

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AD7716 Specifications

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SN:H0.77059LO92228V24Q0QC0S0

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