GENERAL DESCRIPTION

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.

FEATURES

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