Dual analog-to-digital converter provides two 14-bit conversion channels with 20 MSPS, 40 MSPS, and 65 MSPS speed grades. The converter operates from a single 3 V analog supply range of 2.7 V to 3.6 V and supports 2.25 V to 3.6 V digital output driver supply operation. Differential analog inputs support 1 V p-p to 2 V p-p input ranges with 500 MHz input bandwidth, on-chip reference, and sample-and-hold amplifiers. Digital outputs support offset binary or twos complement data format, with an output data multiplexing option and out-of-range indicators. Pb-free 64-lead LQFP and LFCSP package options are specified for the industrial temperature range of -40°C to +85°C.
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| Converter type | Dual analog-to-digital converter |
| Resolution | 14bit |
| Number of ADC channels | 2 |
| Sample rate options | 20, 40, 65MSPS |
| Analog supply voltage | 2.7 to 3.6V |
| Output driver supply voltage | 2.25 to 3.6V |
| Signal-to-noise ratio | 71.6 to Nyquist, AD9248-65dBc |
| Spurious-free dynamic range | 80.5 to Nyquist, AD9248-65dBc |
| Power consumption | 600 at 65 MSPSmW |
| Standby power | 2.0mW |
| Analog input type | Differential |
| Analog input span | 1 to 2V p-p |
| Analog input bandwidth | 500MHz |
| Input capacitance | 7pF |
| Differential nonlinearity | ±0.7 maxLSB |
| Integral nonlinearity | ±2.8 typLSB |
| No missing codes | 14 guaranteedbit |
| Crosstalk immunity | >85dB |
| Output data format | Offset binary or twos complement |
| Operating temperature range | -40 to +85°C |
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