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The AD7686 is a 16-bit, charge redistribution, successive approximation, analog-to-digital converter (ADC) that operates from a single 5 V power supply, VDD. It contains a low power, high speed, 16-bit sampling ADC with no missing codes, an internal conversion clock, and a versatile serial interface port. The part also contains a low noise, wide bandwidth, short aperture delay track-and-hold circuit. On the CNV rising edge, the AD7686 samples an analog input IN+ between 0 V to REF with respect to a ground sense IN−. The reference voltage, REF, is applied externally and can be set up to the supply voltage. Power dissipation scales linearly with throughput. The SPI-compatible serial interface also features the ability, using the SDI input, to daisy-chain several ADCs on a single, 3-wire bus or provides an optional busy indicator. This device is compatible with 1.8 V, 2.5 V, 3 V, or 5 V logic, using the separate supply VIO. The AD7686 is housed in a 10-lead MSOP or a 10-lead QFN (LFCSP) with operation specified from −40°C to +85°C. Applications Battery-powered equipment Data acquisitions Instrumentation Medical instruments Process controls
| Resolution (Bits) | 16bit |
| Sampling Rate | 500kSPS |
| Supply Voltage Type | Single |
| Supply Voltage Min | 4.5V |
| Supply Voltage Max | 5.5V |
| ADC / DAC Case Style | MSOP |
| No. of Pins | 10Pins |
| Input Channel Type | Single Ended |
| Data Interface | Serial, SPI |
| Operating Temperature Min | -40°C |
| Operating Temperature Max | 85°C |
| Packaging | Each |
| Product Range | Single 16-Bit SAR ADCs |
| Automotive Qualification Standard | - |
| RoHS Phthalates Compliant | Yes |
| MSL | MSL 1 - Unlimited |
| SVHC | No SVHC (07-Jul-2017) |
| A/D / D/A Features | Serial SPI Interface, Microwire, DSP Compatible, Psudeo, PulSAR |
| Base Number | 7686 |
| Conversion Time | 2µs |
| Data Rate | 500Kbps |
| IC Case Style | SOP |
| IC Generic Number | 7686 |
| Linearity Error | 0.003% |
| Linearity Error ADC / DAC + | 0.6LSB |
| Linearity Error ADC / DAC - | 0.6LSB |
| Logic Function Number | 7686 |
| No. of Bits | 16bit |
| No. of Channels | 1Channels |
| Operating Temperature Range | -40°C to +85°C |
| Supply Current | 1nA |
| Supply Voltage Range | 4.5V to 5.5V |
| Supply Voltage Range - Analogue | 4.5V to 5.5V |
| input_capacitance | 30.0 pF |
| reach_svhc_compliance | No SVHC |
| data_rate | 500 kbps |
| mil_spec | No |
| rohs_status | Compliant |
| logic_type | SAR |
| lead_free_status | Contains Lead |
| mounting_style | Surface Mount |
| packaging | Tube, Bulk |
| case_package | MSOP |
| sample_rate | 500 kHz |
| resolution_bits | 16.0 |
| lifecycle_status | Active |
| number_of_bits | 16 |
| pin_count | 10 |
| supply_voltage_dc | 4.50 V (min) |
| power_dissipation | 21.5 mW |
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