A 16-bit charge-redistribution SAR analog-to-digital converter provides 500 kSPS throughput with no pipeline delay. The unipolar analog input range spans 0 V to 2.5 V, and the device includes an internal 2.5 V reference with support for an external reference. Parallel and serial interface modes support 5 V and 3 V logic and are compatible with SPI, QSPI, MICROWIRE, and DSP interfaces. Single 5 V supply operation dissipates 67 mW typical without the reference and 77 mW typical with the reference enabled. Operation is specified from -40°C to +85°C in 48-lead LQFP and 48-lead LFCSP packages.
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| Resolution | 16bits |
| Throughput Rate | 500kSPS |
| Complete Cycle Time | 1µs |
| Analog Input Voltage Range | 0 to VREFV |
| Reference Voltage | 2.5 internalV |
| External Reference Voltage Range | 2.3 to AVDD - 1.85V |
| Integral Nonlinearity | ±2.5 maxLSB |
| Signal-to-Noise Ratio | 90 at 100 kHz inputdB |
| Spurious-Free Dynamic Range | 100 at 100 kHz inputdB |
| Total Harmonic Distortion | -100 at 45 kHz and 100 kHz inputdB |
| Input Bandwidth | 14.5 at -3 dBMHz |
| Aperture Delay | 2ns |
| Aperture Jitter | 5ps rms |
| Transient Response | 750 full-scale stepns |
| Supply Voltage | 5 single supplyV |
| Power Dissipation | 67 typical without reference; 77 typical with referencemW |
| Power-Down Dissipation | 7 maxµW |
| Operating Temperature | -40 to +85°C |
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