LTC2662CUH-16#TRPBF

Overview

The LTC2662CUH-16#TRPBF is a five-channel, 16-bit current-source digital-to-analog converter (DAC) from Analog Devices. It features per-channel programmable output ranges of 300 mA, 200 mA, 100 mA, 50 mA, 25 mA, 12.5 mA, 6.25 mA, and 3.125 mA. The device supports flexible supply voltages from 2.85 V to 33 V with a guaranteed 1 V dropout at 200 mA. Each channel has a dedicated voltage supply pin. Key specifications include ±0.2 LSB DNL, ±12 LSB INL, and an internal 1.25 V reference with 10 ppm/°C temperature coefficient. It operates within a junction temperature range of 0°C to 70°C.

Feature Summary

• Five independent channels with 16-bit resolution and programmable current ranges up to 300 mA.
• Flexible supply voltage support from 2.85 V to 33 V with separate supplies per output channel.
• Integrated precision 1.25 V reference or external reference input option.
• SPI/Microwire-compatible 3-wire serial interface operating at clock rates up to 50 MHz.

Applications

• Tunable Lasers
• Semiconductor Optical Amplifiers
• Resistive Heaters
• Current Mode Biasing
• Proportional Solenoid Drive

Procurement Notes

Verify the #TRPBF suffix indicates tape-and-reel packaging for automated assembly. Confirm the CUH suffix corresponds to the commercial temperature grade (0°C to 70°C) and QFN package. Ensure compatibility with system power rails and SPI logic levels before procurement.

Selection Notes

Select this part for applications requiring high compliance voltage and precise current control across multiple channels. The 16-bit resolution ensures fine current adjustment. Consider thermal management due to power dissipation in the QFN package. Verify that the required current range fits within the 3.125 mA to 300 mA programmable spans.

Part Context

This component belongs to the LTC2662 family of SoftSpan DACs. The 'C' denotes the commercial temperature range, while 'I' and 'H' variants offer extended ranges. The '#TRPBF' suffix specifies the reel packaging and lead-free status. Other family members include different resolutions or channel counts.

Replacement Considerations

Direct replacements within the same family include LTC2662IUH-16#PBF and LTC2662HUH-16#PBF, which share identical electrical characteristics but differ in operating temperature ranges and packaging format.