AD7982BCPZ-RL7

AD7982 is a 18bit, successive approximation, analogue-to-digital converter (ADC) that operates from a single power supply, VDD. It contains a low power, high speed, 18bit sampling ADC and a versatile serial interface port. On the CNV rising edge, this device samples the voltage difference between the IN+ and IN- pins. The voltages on these pins usually swing in opposite phases between 0V and VREF. The reference voltage, VREF, is applied externally and can be set independent of the supply voltage, VDD. Its power scales linearly with throughput. The serial peripheral interface (SPI)-compatible serial interface also features the ability, using the SDI input, to daisy-chain several ADCs on a single 3-wire bus and provides an optional busy indicator. It is used in applications such as automated test equipment, data acquisition systems, medical instruments, machine automation.

• Zero latency architecture, 18bit resolution with no missing codes
• Proprietary serial interface SPI-/QSPI™/ MICROWIRE™-/DSP-compatible
• Differential linearity error is ±0.5LSB typical at (VDD = 2.5V, VIO = 1.71V to 5.5V)
• Integral linearity error is ±1LSB typical at (VDD = 2.5V, VIO = 1.71V to 5.5V)
• Zero temperature drift is 0.5ppm/°C typical at (VDD = 2.5V, VIO = 1.71V to 5.5V)
• Power supply rejection ratio is 90dB typical at (VDD = 2.5V, VIO = 1.71V to 5.5V)
• Transient response is 290ns maximum at (VDD = 2.5V, VIO = 1.71V to 5.5V)
• 10MHz typical -3dB input bandwidth at (VDD = 2.5V, VIO = 1.71V to 5.5V)
• Load current is 350μA typical at (VDD = 2.5V, VIO = 1.71V to 5.5V)
• Operating temperature is -40°C to +85°C, package style is 10-lead LFCSP

注意

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