LTC2630ACSC6-LM12#TRPBF

Overview

The LTC2630ACSC6-LM12#TRPBF is a single-channel, 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated precision reference providing a full-scale output of 2.5V and operates within a supply voltage range of 2.7V to 5.5V. The device utilizes a rail-to-rail output buffer and supports SPI/MICROWIRE compatible 3-wire serial interfaces with clock rates up to 50MHz. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±1 LSB for the A-grade variant, a typical supply current of 180µA at 3V, and power-down current as low as 1.8µA. It incorporates double-buffered data latches and selectable power-on reset options.

Feature Summary

• Integrated Precision Reference: Provides a stable 2.5V full-scale output with a temperature coefficient of 10ppm/°C.
• High Accuracy: A-grade specification guarantees a maximum Integral Nonlinearity (INL) error of ±1 LSB across the operating temperature range.
• Low Power Consumption: Operates with a typical supply current of 180µA at 3V and reduces to a maximum of 1.8µA in power-down mode.
• Compact Packaging: Housed in a tiny 6-lead SC70 package, suitable for space-constrained designs.

Applications

• Mobile Communications
• Process Control and Industrial Automation
• Automatic Test Equipment
• Portable Equipment
• Automotive Systems

Procurement Notes

Verify the specific ordering suffix #TRMPBF indicates a 500-piece tape and reel quantity, distinct from the standard 2,500-piece TR configuration. Confirm that the C temperature grade corresponds to the commercial range of 0°C to 70°C. Ensure the LM designation is selected for mid-scale power-on reset behavior rather than zero-scale. Cross-reference the A-grade INL specification against project requirements for linearity accuracy.

Selection Notes

Select this component when a 12-bit resolution with ±1 LSB INL accuracy is required in a minimal footprint. The LM suffix is appropriate if system initialization requires the DAC output to settle at mid-scale upon power-up. The L-series internal reference sets the full-scale voltage to 2.5V, requiring a supply voltage between 2.7V and 5.5V. For applications needing a 4.096V full-scale output, the H-series variants must be considered instead.

Part Context

This part belongs to the LTC2630 family of single-channel DACs available in 12-, 10-, and 8-bit resolutions. The family shares common architectural features including rail-to-rail output buffers and SPI compatibility. Variants differ by temperature grade (C, I, H), accuracy grade (standard vs. A), and internal reference voltage (2.5V vs. 4.096V). The SC70 package allows for high-density PCB layouts compared to larger QFN or MSOP packages found in other DAC families.

Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the source documentation. Designers should verify pinout and electrical compatibility when considering alternative manufacturers' devices, particularly regarding the 3-wire serial interface timing and power-on reset behaviors.