LTC2632CTS8-HI12#TRMPBF

Overview

The LTC2632CTS8-HI12#TRMPBF is a dual 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices, housed in an 8-lead TSOT-23 package. It features an integrated precision reference with a full-scale output of 4.096V and a temperature coefficient of 10ppm/°C. The device operates on a single supply voltage ranging from 4.5V to 5.5V. It utilizes a 3-wire SPI/MICROWIRE compatible serial interface with clock rates up to 50MHz. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±2.5LSB, a settling time of 4.9µs at 5V, and a typical supply current of 0.5mA at 5V with the internal reference active.

Feature Summary

• Dual 12-bit DACs with integrated 4.096V precision reference (10ppm/°C)
• Rail-to-rail output buffers with guaranteed monotonicity
• Power-on reset to mid-scale in internal reference mode
• 3-wire SPI/MICROWIRE interface supporting 50MHz clock rates

Applications

• Mobile communications systems
• Process control and industrial automation
• Automatic test equipment
• Portable battery-powered equipment

Procurement Notes

Verify the specific ordering suffix #TRMPBF indicates a 500-piece tape and reel packaging configuration. Confirm that the C-grade designation aligns with the required commercial operating temperature range of 0°C to 70°C for the target application environment.

Selection Notes

Select this part when a 4.096V full-scale output is required with an internal reference. Ensure the system supply voltage remains within the 4.5V to 5.5V range, as lower voltages will not support the specified performance. Consider the HI suffix for mid-scale power-on reset behavior if downstream circuitry requires a defined initial state.

Part Context

This component belongs to the LTC2632 family, which offers various resolution and accuracy combinations. The 'A' grade variant provides tighter linearity specs (±1.5LSB), whereas this standard grade specifies ±2.5LSB INL. The 'H' designation distinguishes it from the 'L' series by requiring a higher minimum supply voltage to achieve the 4.096V output span.

Replacement Considerations

Direct pin-compatible substitutes within the same family include the LTC2632CTS8-LI12#TRMPBF for 2.5V applications or the LTC2632ACTS8-HI12#TRMPBF for improved linearity. Verify that any replacement matches the specific power-on reset configuration and supply voltage constraints.