AD7892BRZ-2

AD7892BRZ-2 is a high speed, low power, 12-bit A/D converter that operates from a single +5V supply. The part contains a 1.47µs successive approximation ADC, an on-chip track/hold amplifier, an internal +2.5V reference and on-chip versatile interface structures that allow both serial and parallel connection to a microprocessor. It offers a choice of two data output formats: a single, parallel, 12-bit word or serial data. Fast bus access times and standard control inputs ensure easy parallel interface to microprocessors and digital signal processors. A high speed serial interface allows direct connection to the serial ports of microcontrollers and digital signal processors. In addition to the traditional dc accuracy specifications such as linearity, full-scale and offset errors, the part is also specified for dynamic performance parameters including harmonic distortion and signal-to-noise ratio.

• Conversion time is 1.6µs maximum at (VDD = +5V, 5%)
• Throughput rate is 500kSPS, single supply operation
• On-chip track/hold amplifier, high speed serial and parallel interface
• Input range from 0V to +2.5V, relative accuracy is ±1LSB typical at (VDD = +5V, ±5%)
• Total harmonic distortion is -78dB maximum at (VDD = +5V, ±5%)
• Unipolar offset error is ±3LSB maximum at (VDD = +5V, ±5%)
• Input current is 10nA maximum at (VDD = +5V, ±5%)
• Track/hold acquisition time is 0.4µs maximum at (VDD = +5V, ±5%)
• Input impedance is 1.6Kohm minimum at (VDD = +5V, ±5%)
• Operating temperature range from -40°C to +85°C, 24-lead SOIC package

Opmerkingen

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