LTC2632CTS8-LI12#TRMPBF

Overview

The LTC2632CTS8-LI12#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 providing a 2.5V full-scale output with a temperature coefficient of 10ppm/°C. The device operates on a single supply ranging from 2.7V to 5.5V and communicates via a 3-wire SPI/MICROWIRE compatible interface supporting clock rates up to 50MHz. Key electrical characteristics include a maximum integral nonlinearity (INL) error of ±2.5LSB, a settling time of 4.4µs at 3V, and rail-to-rail output buffers. The part includes a power-on reset circuit configured to set outputs to mid-scale upon initialization.

Feature Summary

• Dual 12-bit DACs with integrated 2.5V precision reference (10ppm/°C drift)
• Rail-to-rail output buffers with guaranteed monotonicity
• 3-wire SPI/MICROWIRE serial interface with 50MHz clock capability
• Power-on reset to mid-scale in internal reference mode

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 configuration as defined in the manufacturer's documentation. Confirm that the C grade corresponds to the commercial temperature range of 0°C to 70°C. Ensure compatibility with the required supply voltage range of 2.7V to 5.5V for the specified 2.5V full-scale output configuration.

Selection Notes

Select this component when a dual-channel, low-pin-count DAC with an integrated high-accuracy reference is required. The LI suffix denotes a mid-scale power-on reset behavior suitable for applications where downstream circuits must remain active during startup. Compare against the LZ variant if zero-scale reset is preferred, or the H-series variants if a 4.096V full-scale output and higher supply voltage (4.5V–5.5V) are necessary.

Part Context

This part belongs to the LTC2632 family of dual voltage-output DACs. Variants within the family differ by resolution (8, 10, or 12 bits), accuracy grade (standard or A-grade with ±1.5LSB INL), full-scale voltage (2.5V or 4.096V), and power-on reset behavior (zero-scale or mid-scale). The LTS8 package designation confirms the 8-lead plastic TSOT-23 form factor common across the series.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Replacement requires matching the 12-bit resolution, dual-channel architecture, TSOT-23 package, and specific power-on reset characteristics.