First stock of low-noise Analog Devices new 32-bit ADC
Mouser is first to stock the new AD7177-2 32-bit sigma delta analog to digital converter (ADC) from Analog Devices. The AD7177-2 is a low-noise 32-bit sigma delta (S-?) ADC with a true rail-to-rail input buffer and flexible scan rates. The device can be configured as two fully differential, or four single-ended, analog inputs with a channel scan rate of 10kSPS. The AD7177-2 is designed to operate as a fast settling, very high resolution, S-? ADC with high levels of configurability.
The AD7177-2 is a very high resolution 32-bit S-? ADC for applications that require the measurement of very high precision analog data. It can also be configured for 24-bit resolution, which provides faster conversion speeds. The AD7177-2 has four independent channels with four independent setups. Developers can select any of the analog input pairs on any channel, as well as any of the four setups for any channel, providing full flexibility in the channel configuration. This also allows per channel configuration when using differential inputs, as well as single-ended inputs, because each channel can have its own dedicated setup. A precision 2.5V low drift (2 ppm/C) band gap internal reference with output reference buffer adds additional functionality which reduces external component count.
Integrated true rail-to-rail buffers on the analog inputs and external reference inputs allow the ADC to easily drive high impedance inputs. An SPI interface allows configuration of many of the ADC options including 32- or 24-bit resolution, power down modes, gain, offset calibration values, conversion delay, and enabling the internal temperature sensor. This ADC is specified over the extended industrial temperature range of -40C to +105C.
The AD7177-2 can be used in a variety of applications that require high resolution and accuracy, such as medical instrumentation, industrial PLC modules, and high precision data acquisition systems, says the company.