AD7380-4 Series

The AD7380-4 is a 16-bit compatible, quad, simultaneous sampling, high speed, successive approximation register (SAR), analog-to-digital converters (ADC) operating from a 3.3 V power supply with throughput rates up to 4 MSPS. The differential analog input accepts a wide common-mode input voltage and is sampled and converted on the falling edge ofCS.The AD7380-4 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. The REFIN pin can have a reference voltage of 2.5 V to 3.3 V.The conversion process and data acquisition use standard control inputs allowing easy interfacing to microprocessors or digital signal processors (DSPs). The conversion result can clock out simultaneously via 4-wire mode for faster throughput, or via 1-wire serial mode when slower throughput is allowed. The device is compatible with 1.8 V, 2.5 V, and 3.3 V interfaces using the separate logic supply.The AD7380-4 is available in a 24-lead lead frame chip scale package (LFCSP) and operates over a temperature range of −40°C to +125°C.ApplicationsMotor control position feedbackMotor control current senseData acquisition systemsErbium doped fiber amplifier (EDFA) applicationsIn phase and quadrature demodulationProduct HighlightsQuad simultaneous sampling and conversionPin-compatible product family.High throughput rate, 4 MSPS at 16-bit.Space-saving, 4 mm × 4 mm LFCSP.Integrated oversampling block to increase dynamic range, reduce noise and reduce SCLK speed requirements.Differential analog inputs with wide common-mode range.Small sampling capacitor reduces amplifier drive burden.