LTC2662HUH-16#PBF

LTC®2662 is a five-channel, 300mA current-source output 16bit SoftSpan DAC. It provides five high-compliance current source outputs with guaranteed 1V dropout at 200mA. The part supports load voltages of upto 32V. There are eight current ranges, programmable per channel, with full-scale outputs of upto 300mA and the channels can be paralleled to allow for ultrafine adjustments of large currents, or for combined outputs of upto 1.5A. A dedicated supply pin is provided for every output channel. Each can be operated from 2.85V to 33V, and internal switches allow any output to be pulled to the optional negative supply. The SPI/Microwire-compatible 3-wire serial interface operates on logic levels as low as 1.71V at clock rates upto 50MHz. Application includes tunable lasers, semiconductor optical amplifiers, resistive heaters, current mode biasing, proportional solenoid drive.

• Analog supply voltage range from 2.85 to 5.5V (VCC must not exceed V+, TJ = 25°C)
• 1V dropout guaranteed
• Separate voltage supply per output channel
• Internal switches to optional negative supply
• Precision (10ppm/°C max) internal reference or external reference input
• Analog mux monitors voltages and currents
• A/B toggle via SPI or dedicated pin, 1.8V to 5V SPI serial interface
• Minimum monotonicity is 16bits (TJ = 25°C)
• Typical power supply rejection ratio is ±2.2LSB (TJ = 25°C)
• 32 lead QFN package, automotive temperature range from -40°C to 125°C

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