(Hong Kong)
Product Summary
The LTC1428CS8-50#TR is a micropower 8-bit current sink output D/A converter (DAC) with an output range of 0mA to 50mA. In 3.3V or 5V systems, the DAC IOUT pin can be biased from 2V to 10V. Supply current is only 130mA. Shutdown mode drops the supply current to 0.2mA. The LTC1428CS8-50#TR communicates with external circuitry by using one of three interface modes: standard 3-wire serial mode or one of two pulse modes. The applications of the LTC1428CS8-50#TR include LCD Contrast Control, Backlight Brightness Control, Power Supply Voltage Adjustment, Battery Charger Voltage/Current Adjustment, GaAs FET Bias Adjustment, Trimmer Pot Elimination.
Parametrics
LTC1428CS8-50#TR absolute maximum ratings: (1)Supply Voltage (VCC): 7V; (2)Input Voltage (All Inputs): -0.3V to (VCC + 0.3V); (3)Output Voltage, IOUT: -0.3V to 10V; DOUT: -0.3V to (VCC + 0.3V); (4)Short-Circuit Duration (All Outputs): Indefinite; (5)Operating Temperature Range: 0℃ to 70℃; (6)Storage Temperature Range: -65℃ to 150℃; (7)Lead Temperature (Soldering, 10 sec): 300℃.
Features
LTC1428CS8-50#TR features: (1)Precision Full-Scale DAC Output Current at 25℃: 50mA ±3%; (2)Wide Output Voltage DC Compliance: 2V to 10V; (3)Wide Supply Range: 3V ≤ VCC ≤ 6.5V; (4)Supply Current in Shutdown: 0.2mA; (5)Low Supply Current: 130mA; (6)Available in 8-Pin SO; (7)Triple ModeTM Interface, 1. Standard 3-Wire Mode; 2. 1-Wire Pulse Mode Interface: Increment-Only; 3. 2-Wire Pulse Mode Interface: Increment/Decrement; (8)DAC Value Read Back Capability in 3-Wire Mode; (9)DAC Powers Up at Midrange; (10)DAC Contents Are Retained in Shutdown.
Diagrams
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 LTC1428CS8-50#TR |
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IC DAC 8BIT SINK MICROPWR 8SOIC |
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LTC1428CS8-50#TRPBF |
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IC D/A CONV 8BIT SINK OUT 8-SOIC |
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