AD7357BRUZ

AD7357B is a dual, high speed, low power, successive approximation analogue-to-digital converter (ADC) that operates from a single 2.5V power supply and features throughput rates up to 4.2MSPS. The device contains two ADCs, each preceded by a low noise, wide bandwidth track-and-hold circuit that can handle input frequencies in excess of 110MHz. The conversion process and data acquisition use standard control inputs allowing for easy interfacing to microprocessors or digital signal processors (DSPs). The input signal is sampled on the falling edge of active-low CS; a conversion is also initiated at this point. The conversion time is determined by the SCLK frequency. The analogue input range for the device is the differential common mode ±VREF/2. It has an on-chip 2.048 V reference that can be overdriven when an external reference is preferred. Typical applications are automotive radar, data acquisition systems, motion control, I and Q demodulation, RFID readers.

• High throughput with low power consumption, simultaneous sampling
• Signal-to-noise ratio (SNR) is 76.5dB (fIN=500KHz sine wave, VDD=2.5 ± 10% V, VDRIVE=2.25V to 3.6V)
• CMRR is −100dB typ (fNOISE=100KHz to 2.5MHz, VDD=2.5 ± 10% V, VDRIVE=2.25V to 3.6V)
• Full power bandwidth is 110MHz (at 3dB, VDD=2.5 ± 10% V, VDRIVE=2.25V to 3.6V, TA=TMIN to TMAX)
• Resolution is 14bit (VDD=2.5 ± 10% V, VDRIVE=2.25V to 3.6V, TA=TMIN to TMAX)
• VREF noise is 60μV rms (VDD=2.5 ± 10% V, VDRIVE=2.25 V to 3.6 V, TA=TMIN to TMAX)
• Throughput rate is 4.2MSPS (VDD=2.5 ± 10% V, VDRIVE=2.25 V to 3.6 V, TA=TMIN to TMAX)
• 16-lead thin shrink small outline package [TSSOP]
• Temperature rating range from −40°C to +85°C

Ghi chú

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