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Specifications
SKU: 1742515
Single Chip 12-Bit Data Acquisition System
| Parameter | Symbol | Min | Typical | Max | Units | Conditions |
|---|---|---|---|---|---|---|
| Supply Voltage | VCC | 4.5 | - | 5.5 | V | Operating Range |
| Output Voltage | VOUT | - | 0 to VREF | - | V | Programmable via DAC |
| Reference Voltage | VREF | 2.5 | - | 2.5 | V | Internal Precision Reference |
| Output Current | IOUT | - | ±10 | - | mA | Maximum Output Current |
| Line Regulation | - | - | 0.005 | - | %/V | Over full operating range |
| Load Regulation | - | - | 0.01 | - | %/mA | Over full operating range |
| Temperature Coefficient | - | - | 50 | - | ppm/°C | Over -40°C to +85°C |
| Power Dissipation | PD | - | 250 | - | mW | Maximum at 5V, 10mA output |
| Operating Temperature | TA | -40 | - | 85 | °C | Commercial Grade |
| Storage Temperature | TSTG | -65 | - | 150 | °C | Storage Range |
Instructions for Use
Power Supply:
- Connect the positive supply voltage (VCC) to pin 8.
- Connect the ground (GND) to pin 4.
Output Configuration:
- The output voltage (VOUT) is programmable via the DAC input on pins 1-3.
- Set the desired output voltage by applying the appropriate digital code to these pins.
Reference Voltage:
- The internal reference voltage (VREF) is 2.5V and is available on pin 5.
- This can be used as a reference for other circuits if needed.
Load Connection:
- Connect the load between the output (pin 7) and ground (pin 4).
- Ensure the load current does not exceed ±10mA to avoid damaging the device.
Thermal Considerations:
- Ensure adequate heat dissipation if operating near the maximum power dissipation.
- The device is designed to operate within the temperature range of -40°C to +85°C.
Stability:
- The device is stable with a wide range of capacitive loads.
- For best performance, use a bypass capacitor (0.1μF) between VCC and GND close to the device.
Programming the DAC:
- The DAC input is a 3-bit binary code applied to pins 1, 2, and 3.
- The output voltage is calculated as VOUT = VREF * (DAC Code / 7), where the DAC Code ranges from 0 to 7.
Storage:
- Store the device in a dry, cool place within the temperature range of -65°C to +150°C.
By following these instructions, you can ensure optimal performance and reliability of the LTC1290CCN.
(For reference only)Inquiry - LTC1290CCN
