ADI AD7262BCPZ-RL7

The AD7262/AD7262-5 are dual, 12-bit, high speed, low power, successive approximation ADCs that operate from a single 5 V power supply. The AD7262 features throughput rates of up to 1 MSPS per on-chip ADC. The AD7262-5 features throughput rates of up to 500 kSPS. Two complete ADC functions allow simultaneous sampling and conversion of two channels. Each ADC is preceded by a true differential analog input with a PGA. There are 14 gain settings available: ×1, ×2, ×3, ×4, ×6, ×8, ×12, ×16, ×24, ×32, ×48, ×64, ×96, and ×128. The AD7262/AD7262-5 contain four comparators. Comparator A and Comparator B are optimized for low power, while Comparator C and Comparator D have fast propagation delays. The AD7262/AD7262-5 feature a calibration function to remove any device offset error and programmable gain adjust registers to allow for input path (for example, sensor) offset and gain compensation. The AD7262/AD7262-5 have an on-chip 2.5 V reference that can be disabled if an external reference is preferred. The AD7262/AD7262-5 are ideally suited for monitoring small amplitude signals from a variety of sensors. They include all the functionality needed for monitoring the position feedback signals from a variety of analog encoders used in motor control systems.

• Dual simultaneous sampling 12-bit, 2-channel analog-to-digital converter (ADC)
• True differential analog inputs
• Programmable gain stage: ×1, ×2, ×3, ×4, ×6, ×8, ×12, ×16, ×24, ×32, ×48, ×64, ×96, ×128
• Throughput rate per ADC 1 MSPS for AD7262 500 kSPS for AD7262-5
• Analog input impedance: >1 GΩ
• Wide input bandwidth −3 dB bandwidth: 1.7 MHz at gain = 2
• 4 on-chip comparators
• SNR: 73 dB typical at gain = 2, 66 dB typical at gain = 32
• Device offset calibration, system gain calibration
• On-chip reference: 2.5 V
• -40°C to +105°C operation
• High speed serial interface SPI/QSPI/MICROWIRE/DSP compatible
• 48-lead LFCSP and LQFP