AD7923BRUZ-REEL

AD7923 is a 12-bit, high speed, low power, 4-channel, successive approximation (SAR) ADC. It operates from a single 2.7V to 5.25V power supply and features throughput rates upto 200kSPS. It contains a low noise, wide bandwidth track-and-hold amplifier that can handle input frequencies in excess of 8MHz. The conversion process and data acquisition are controlled by CS and the serial clock, allowing the device to easily interface with microprocessors or DSPs. The input signal is sampled on the falling edge of CS; the conversion is also initiated at this point. It uses advanced design techniques to achieve very low power dissipation at maximum throughput rates. At maximum throughput rates, it consumes 1.2mA maximum with 3V supplies and 1.5mA maximum with 5V supplies. It features four single-ended analogue inputs with a channel sequencer to allow a pre-programmed selection of channels to be converted sequentially.

• Flexible power/serial clock speed management, no pipeline delays
• High speed serial interface SPI®-/QSPITM-/ MICROWIRETM-/DSP-compatible
• Signal-to-noise ratio is 70dB minimum at (AVDD = VDRIVE = 2.7V to 5.25V)
• Total harmonic distortion is -77dB maximum at (AVDD = VDRIVE = 2.7V to 5.25V)
• Aperture jitter is 50ps typical at (AVDD = VDRIVE = 2.7V to 5.25V)
• Integral nonlinearity is ±1LSB maximum at (AVDD = VDRIVE = 2.7V to 5.25V)
• Track-and-hold acquisition time is 800ns maximum at (AVDD = VDRIVE = 2.7V to 5.25V)
• Input capacitance is 10pF maximum at (AVDD = VDRIVE = 2.7V to 5.25V)
• Full power bandwidth is 8.2MHz typical at (AVDD = VDRIVE = 2.7V to 5.25V)
• Operating temperature is -40°C to +125°C, package style is 16-lead TSSOP

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