LTC2662CUH-12#PBF

LTC2662CUH-12#PBF is a five-channel, 12bit current-source digital-to-analogue converter providing five high-compliance current source outputs with guaranteed 1V dropout at 200mA. There are eight current ranges, programmable per channel, with full-scale outputs of up to 300mA; and the channels can be paralleled to allow for ultrafine adjustments of large currents, or for combined outputs of up to 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 LTC2662 includes a precision integrated 1.25V reference (10ppm/°C maximum), with the option to use an external reference. The SPI/Microwire-compatible 3-wire serial interface operates on logic levels as low as 1.71V at clock rates up to 50MHz. Typical applications include tunable lasers, semiconductor optical amplifiers, resistive heaters, current mode biasing and proportional solenoid drive.

• Separate voltage supply per output channel
• Internal switches to optional negative supply
• Analog mux monitors voltages and currents
• A/B toggle via SPI or dedicated pin
• 1.8V to 5V SPI serial interface
• Available in 32 lead QFN-EP package
• Operating temperature range from 0°C to 70°C

Ghi chú

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