Analog Devices' LTCR2645 is a family of quad 12-, 10-, and 8-bit PWM-to-voltage output DACs with an integrated high accuracy, low drift, 10 ppm/°C reference in a 16-lead MSOP package. It has rail-to-rail output buffers and is guaranteed monotonic. The LTC2645 has a full-scale output of 2.5 V using the 10 ppm/°C internal reference. It can operate with an external reference, which sets the full-scale output equal to the external reference voltage. Each DAC enters a pin-selectable idle state when the PWM input is held unchanged for more than 60 ms. The part operates from a single 2.7 V to 5.5 V supply and supports PWM input voltages from 1.71 V to 5.5 V.
| Features |
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- No latency PWM-to-voltage conversion
- Voltage output updates and settles within 8 μs
- 100 kHz to 30 Hz PWM input frequency
- ±2.5 LSB max INL; ±1 LSB max DNL (LTC2645-12)
- Guaranteed monotonic
- Pin-selectable internal or external reference
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- 2.7 V to 5.5 V supply range
- 1.71 V to 5.5 V input voltage range
- Low power: 2.7 mA at 3 V, <1 μA power-down
- Guaranteed operation from -40°C to 125°C
- 16-lead MSOP package
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| Applications |
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- Digital calibrations
- Trimming and adjustments
- Level settings
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- Process control and industrial automation
- Instrumentation
- Automotive
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