LTC2672HUH-12#PBF

LTC2672 is a family of 12-bit SoftSpan current source digital-to-analogue converter (DAC) that provide five high compliance, current source outputs with guaranteed 0.6V dropout at 200mA. Its channels can be paralleled to allow either ultrafine adjustments of large currents or combined outputs of up to 1.5A. A dedicated supply pin is provided for each output channel. Each channel can be operated from 2.1V to VCC and internal switches allow any output to be pulled to the optional negative supply. This serial peripheral interface compatible, 3‑wire serial interface operates on logic levels as low as 1.71V and at clock rates as high as 50MHz. Typical applications are tunable lasers, semiconductor optical amplifier biasing, resistive heaters, current mode biasing.

• Five-channel, low dropout, current source output
• Flexible single or dual supply operation
• 0.6V maximum dropout voltage guaranteed (200 mA range, (VDDx − V−) = 4.75 V)
• Separate voltage supply per output channel
• Internal switches to optional negative supply
• -40 to +125°C temperature range
• Analog multiplexer monitors voltages and currents
• A/B toggle via SPI or dedicated pin
• 32-lead QFN (5mm x 5mm x 0.75mm w/ EP) package
• Precision internal reference (10ppm/°C maximum VREF temperature coefficient)/external reference

附註

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