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The AD7796/AD7797 are complete, analog front ends for high precision, bridge sensor applications such as weigh scales. The AD7796/AD7797 contain a Σ-∆ ADC capable of 16-/24-bit resolution, respectively. The on-chip instrumentation amplifier has a fixed gain of 128, allowing small amplitude signals such as those from bridge sensors to be directly interfaced to the ADC. Each device has one differential input and contains a temperature sensor that is internally connected to the ADC. This sensor can be used to perform temperature compensation of the bridge. The devices can be operated with the internal clock or an external clock. The output data rate from the devices is software-programmable and can be varied from 4.17 Hz to 123 Hz. The AD7796/AD7797 operate with a power supply from 2.7 V to 5.25 V. Each device consumes a current of 250 µA typical and is housed in a 16-lead TSSOP. Applications Weigh scales Strain gages Industrial process control Instrumentation Portable instrumentation
| supply_voltage_dc | 2.70 V (min) |
| resolution_bits | 16.0 |
| mil_spec | No |
| power_dissipation | 1.60 mW |
| reach_svhc_compliance | No SVHC |
| lead_free_status | Contains Lead |
| mounting_style | Surface Mount |
| packaging | Tube, Rail |
| case_package | TSSOP |
| sample_rate | 123 Hz |
| supply_current | 280 µA |
| lifecycle_status | Active |
| number_of_bits | 16 |
| rohs_status | Compliant |
| pin_count | 16 |
| number_of_channels | 1 |
| Resolution (Bits) | 16bit |
| Sampling Rate | 123SPS |
| Supply Voltage Type | Single |
| Supply Voltage Min | 2.7V |
| Supply Voltage Max | 5.25V |
| ADC / DAC Case Style | TSSOP |
| No. of Pins | 16Pins |
| Input Channel Type | Differential |
| Data Interface | 3 Wire, Serial |
| Operating Temperature Min | -40°C |
| Operating Temperature Max | 85°C |
| Packaging | Each |
| Product Range | Single 16-Bit Sigma-Delta ADCs |
| Automotive Qualification Standard | - |
| RoHS Phthalates Compliant | Yes |
| MSL | MSL 1 - Unlimited |
| SVHC | No SVHC (07-Jul-2017) |
| Base Number | 7796 |
| IC Case Style | TSSOP |
| Operating Temperature Range | -40°C to +85°C |
| Supply Current | 280µA |
| Supply Voltage Range | 2.7V to 5.25V |
| Supply Voltage Range - Analogue | 2.7V to 5.25V |
| Supply Voltage Range - Digital | 2.7V to 5.25V |
| Termination Type | Surface Mount Device |
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