AD7858ARZ

AD7858ARZ is a high-speed, low-power, 12-bit ADC that operates from a single 3V or 5V power supply, the AD7858 being optimized for speed. The ADC powers up with a set of default conditions at which time it can be operated as a read-only ADC. The ADC contains self-calibration and system calibration options to ensure accurate operation over time and temperature and have a number of power-down options for low-power applications. The part powers up with a set of default conditions and can operate as a read-only ADC. This device voltage range is 0 to VREF with straight binary output coding. Input signal range is to the supply and the part is capable of converting full power signals to 100KHz. It is used in applications such as battery-powered systems (personal digital assistants, medical instruments, mobile communications), pen computers, instrumentation and control systems, high-speed modems.

• Specified for VDD of 3V to 5.5V, input capacitance is 20pF typ at (AVDD = DVDD = +3V to +5.5V)
• System and self-calibration with autocalibration on power-up
• Eight single-ended or four pseudo-differential inputs, 20mW power dissipation
• Signal to noise + distortion ratio is 70dB minimum at (AVDD = DVDD = +3V to +5.5V)
• Differential nonlinearity is ±1LSB maximum at (AVDD = DVDD = +3V to +5.5V)
• REFOUT tempco is 20ppm/°C typical at (AVDD = DVDD = +3V to +5.5V)
• Automatic power-down after conversion (25μW)
• Total unadjusted error is ±1LSB typical at (AVDD = DVDD = +3V to +5.5V)
• Input capacitance is 20pF typical at (AVDD = DVDD = +3V to +5.5V)
• Operating temperature range from -40°C to +85°C, 24-lead small outline 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