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The AD7824 and AD7828 are high-speed, multichannel, 8-bit ADCs with a choice of 4 (AD7824) or 8 (AD7828) multiplexed analog inputs. A half-flash conversion technique gives a fast conversion rate of 2.5 µs per channel and the parts have a built-in track/hold function capable of digitizing full-scale signals of 10 kHz (157 mV/µs slew rate) on all channels. The AD7824 and AD7828 operate from a single +5 V supply and have an analog input range of 0 V to +5 V, using an external +5 V reference. Microprocessor interfacing of the parts is simple, using standard Chip Select (CS) and Read (RD) signals to initiate the conversion and read the data from the three-state data outputs. The half-flash conversion technique means that there is no need to generate a clock signal for the ADC. The AD7824 and AD7828 can be interfaced easily to most popular microprocessors. The AD7824 and AD7828 are fabricated in an advanced, all ion-implanted, Linear-Compatible CMOS process (LC2MOS) and have low power dissipation of 40 mW (typ). The AD7824 is available in a 0.3" wide, 24-pin "skinny" DIP, while the AD7828 is available in a 0.6" wide, 28-pin DIP and in 28- terminal surface mount packages.
| Resolution (Bits) | 8bit |
| Sampling Rate | 50kSPS |
| Supply Voltage Type | Single |
| Supply Voltage Min | 4.75V |
| Supply Voltage Max | 5.25V |
| ADC / DAC Case Style | DIP |
| No. of Pins | 28Pins |
| Input Channel Type | Differential |
| Data Interface | Parallel |
| Operating Temperature Min | 0°C |
| Operating Temperature Max | 70°C |
| Packaging | Each |
| Product Range | Octal 8-Bit Sampling ADCs |
| Automotive Qualification Standard | - |
| RoHS Phthalates Compliant | Yes |
| MSL | MSL 1 - Unlimited |
| SVHC | No SVHC (07-Jul-2017) |
| A/D / D/A Features | CMOS, Microprocessor Compatible, Parallel O/P, Sample and Hold |
| Base Number | 7828 |
| Conversion Time | 2µs |
| IC Case Style | DIP |
| IC Generic Number | 7828 |
| IC Temperature Range | Commercial |
| Linearity Error | 1% |
| Linearity Error ADC / DAC + | 1LSB |
| Linearity Error ADC / DAC - | 1LSB |
| Logic Function Number | 7828 |
| No. of Bits | 8bit |
| No. of Channels | 8Channels |
| Operating Temperature Range | 0°C to +70°C |
| Power Dissipation Ptot Max | 50mW |
| Supply Current | 16mA |
| Supply Voltage Range | 4.75V to 5.25V |
| supply_voltage_dc | 4.75 V (min) |
| rohs_status | Compliant |
| reach_svhc_compliance | No SVHC |
| lead_free_status | Contains Lead |
| mounting_style | Through Hole |
| packaging | Tube, Bulk |
| case_package | DIP |
| sample_rate | 50.0 kHz |
| supply_current | 16.0 mA |
| lifecycle_status | Active |
| number_of_bits | 8 |
| pin_count | 28 |
| number_of_channels | 8 |
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