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Specifications
SKU: 522852
12-Bit, 53 MSPS ADC SE/Diff imputs w/range of 2 to 3Vpp, Int/Ext Ref., Out of Range Indicator 28-SSOP -40 to 85
| Parameter | Symbol | Min | Typical | Max | Unit | Description |
|---|---|---|---|---|---|---|
| Supply Voltage | VDD | 4.5 | 5.0 | 5.5 | V | Power supply voltage |
| Analog Input Voltage | VIN | 0 | - | VDD | V | Range of analog input voltage |
| Digital Output Logic | VIL | 0 | - | 0.8 | V | Low-level input voltage |
| VIH | 2.0 | - | VDD | V | High-level input voltage | |
| Digital Output Level | VOL | 0 | - | 0.4 | V | Low-level output voltage |
| VOH | 2.4 | - | VDD | V | High-level output voltage | |
| Conversion Time | tC | - | 13 | - | μs | Time to complete one conversion |
| Acquisition Time | tA | - | 6 | - | μs | Time to acquire a stable sample |
| Power Dissipation | PD | - | 250 | - | mW | Maximum power dissipation |
| Operating Temperature | Toper | -40 | - | 85 | °C | Operating temperature range |
| Storage Temperature | Tstg | -65 | - | 150 | °C | Storage temperature range |
Instructions for Using AD7870JN
Power Supply:
- Connect the VDD pin to a 5V power supply. Ensure the supply voltage is within the range of 4.5V to 5.5V.
- Connect the GND pin to the ground.
Analog Input:
- Connect the analog signal to the appropriate analog input pins (AIN0 to AIN7).
- Ensure the input voltage is within the range of 0V to VDD.
Digital Interface:
- Connect the digital control and data lines (CS, RD, WR, DB0-DB7) to the microcontroller or processor.
- Set the digital input levels according to the specified VIL and VIH values.
Conversion Process:
- To start a conversion, set the CS pin low and write the appropriate command to the control register.
- The conversion time is typically 13 μs. After the conversion is complete, read the data from the data register by setting the RD pin low.
- Ensure the acquisition time of 6 μs is respected before starting a new conversion.
Power Management:
- Monitor the power dissipation to ensure it does not exceed 250 mW to avoid overheating.
- Use appropriate heat sinking if operating at high temperatures or under continuous load.
Temperature Considerations:
- Operate the device within the temperature range of -40°C to 85°C for optimal performance.
- Store the device in a temperature range of -65°C to 150°C.
Handling and Storage:
- Handle the device with care to avoid static damage.
- Store the device in a dry, cool environment to prevent moisture damage.
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