ANALOG DEVICES AD7381-4BCPZ Analogue to Digital Converter, 14 bit, 4 MSPS, Differential, 1 Wire, 2 Wire, 4 Wire, Serial, SPI

AD7381-4BCPZ is a 16bit, quad, simultaneous sampling, high speed, successive approximation register (SAR), analogue-to-digital converter (ADC) that operates from a 3V to 3.6V power supply and features throughput rates up to 4MSPS. The analogue input type is differential, accepts a wide common-mode input voltage, and the analogue inputs are sampled and converted on the falling edge of CS. It has on-chip oversampling blocks to improve dynamic range and reduce noise at lower bandwidths. The oversampling can boost up to two bits of added resolution. A buffered internal 2.5V reference (10ppm/°C) is included. Alternatively, an external reference up to 3.3V can be used. Applications include motor control position feedback, motor control current sense, data acquisition systems, erbium doped fibre amplifier (EDFA) applications, in-phase and quadrature demodulation.

• 14bit ADC family, quad simultaneous sampling, fully differential analogue inputs
• Wide common-mode range, on-chip oversampling function
• 2bit resolution boost, out of range indicator (active-low ALERT), high-speed serial interface
• Conversion rate is 4MSPS maximum at (VCC = 3.0V to 3.6V, VLOGIC = 1.65V to 3.6V)
• Integral nonlinearity error is ±0.4LSB typical at (VCC = 3.0V to 3.6V, VLOGIC = 1.65V to 3.6V)
• Gain error is ±0.006% FS typical at (VCC = 3.0V to 3.6V, VLOGIC = 1.65V to 3.6V)
• Signal-to-noise ratio is 85.3dB typical at (VREF = 3.3V, 4MSPS)
• Input bandwidth is 6.6MHz typical at (0.1dB, VCC = 3.0V to 3.6V, VLOGIC = 1.65V to 3.6V)
• Aperture jitter is 20ps typical at (VCC = 3.0V to 3.6V, VLOGIC = 1.65V to 3.6V)
• Operating temperature range from -40°C to +125°C, 24-lead LFCSP package

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