LTC2644
FEATURES n No Latency PWM-to-Voltage Conversion n Voltage Output Updates and Settles within 8µs n 100k Hz to 30Hz PWM Input Frequency n ±2.5LSB Max INL; ±1LSB Max DNL (LTC2644-12) n Guaranteed Monotonic n Pin-Selectable Internal or External Reference n 2.7V to 5.5V Supply Range n 1.71V to 5.5V Input Voltage Range n Low Power: 2.7m A at 3V, <1µA Power-Down n Guaranteed Operation from
- 40°C to 125°C n 12-Lead MSOP Package
APPLICATIONS n Digital Calibration n Trimming and Adjustment n Level Setting n Process Control and Industrial Automation n Instrumentation n Automotive
Dual 12-/10-/8-Bit PWM to VOUT DACs with
10ppm/°C Reference
DESCRIPTION
The LTC®2644 is a family of dual 12-, 10-, and 8-bit PWM-to-voltage output DACs with an integrated high accuracy, low drift, 10ppm/°C reference in a 12-lead MSOP package. It has rail-to-rail output buffers and is guaranteed monotonic.
The LTC2644 measures the period and pulse width of the PWM input signals and updates the voltage output DACs...
