LTC2664CUH-16#TRPBF

Overview

The LTC2664CUH-16#TRPBF is a quad-channel, 16-bit digital-to-analog converter (DAC) from Analog Devices. It features SoftSpan technology allowing five independently programmable output ranges up to ±10V. The device includes an integrated precision reference with a maximum temperature coefficient of 10ppm/°C and built-in rail-to-rail output buffers capable of driving ±10mA. It operates on analog supplies ranging from ±4.5V to ±15.75V and a digital I/O supply from 1.71V to VCC. Key electrical specifications include a settling time of 20µs for the ±10V range, a maximum integral nonlinearity (INL) error of ±4LSB at 16 bits, and a differential nonlinearity (DNL) of ±0.35LSB. The component utilizes a 3-wire SPI/Microwire-compatible serial interface.

Feature Summary

• Quad-channel architecture with independent SoftSpan™ output range programming (0V to 5V, 0V to 10V, ±2.5V, ±5V, ±10V).
• Integrated 2.5V precision reference with a maximum temperature coefficient of 10ppm/°C.
• Rail-to-rail output buffers guaranteeing monotonicity and ±10mA drive capability.
• A/B toggle capability via dedicated pin or software command for dual-register updates.

Applications

• Optical networking systems requiring precise voltage control.
• Instrumentation and data acquisition equipment.
• Automatic test equipment (ATE).
• Process control and industrial automation applications.

Procurement Notes

Verify that the #TR suffix confirms the tape and reel packaging format containing 2500 pieces. Confirm the 'C' grade designation matches the required commercial operating temperature range of 0°C to 70°C. Ensure the specific 16-bit resolution variant is selected over the 12-bit option. Cross-reference the manufacturer part number with official Analog Devices documentation to validate authenticity and revision status.

Selection Notes

Select this component when four high-resolution channels are required within a single package. The SoftSpan feature allows flexible output scaling without external resistors. Verify that the system supports the necessary bipolar supply rails or single-supply configuration with V– tied to ground. Ensure the host microcontroller supports the 3-wire SPI interface and logic levels compatible with the IOVCC supply voltage.

Part Context

This part belongs to the LTC2664 family, which also includes 12-bit variants and industrial/automotive temperature grades. The CUH suffix indicates the Commercial temperature grade in a 32-lead QFN package. The TRPBF suffix denotes the Tape & Reel packaging with lead-free finish. Other family members include the LTC2664IUH and LTC2664HUH for wider temperature ranges.

Replacement Considerations

Public confirmed substitute part numbers: LTC2664CUH-16#PBF (Tube packaging), LTC2664IUH-16#TRPBF (Industrial temperature grade), LTC2664HUH-16#TRPBF (Automotive temperature grade).