LTC2630CSC6-LM12#TRPBF

Overview

The LTC2630CSC6-LM12#TRPBF is a single-channel, 12-bit voltage-output digital-to-analog converter (DAC) housed in a 6-lead SC70 package. It features an integrated precision reference providing a full-scale output of 2.5V with a temperature coefficient of 10ppm/°C. The device operates from a single supply ranging from 2.7V to 5.5V and includes a rail-to-rail output buffer guaranteed monotonic over temperature. It utilizes a 3-wire SPI/MICROWIRE compatible serial interface with clock rates up to 50MHz. Power consumption is 180µA at 3V, reducing to 1.8µA maximum in power-down mode. The part includes a power-on reset circuit configured to set the output to mid-scale upon initialization.

Feature Summary

• Integrated 2.5V precision reference with 10ppm/°C drift
• 12-bit resolution with ±1 LSB maximum integral nonlinearity (INL)
• Rail-to-rail output buffer with 500pF capacitive load stability
• Power-on reset to mid-scale option

Applications

• Mobile communications
• Process control and industrial automation
• Automatic test equipment
• Portable equipment
• Automotive systems

Procurement Notes

Verify the ordering suffix #TRPBF indicates a tape and reel quantity of 2,500 pieces. Confirm the temperature grade 'C' corresponds to the commercial range of 0°C to 70°C. Ensure the lead-free designator matches project requirements for RoHS compliance. Cross-reference the specific lot marking code LCZB if physical verification is required during incoming inspection.

Selection Notes

Select this part when a 12-bit resolution with high accuracy (±1 LSB INL) is required in a minimal footprint. The LM12 suffix specifies a mid-scale power-on reset, suitable for applications where downstream circuits are sensitive to zero-scale outputs during startup. Choose this over the H-grade variant if system supply voltages may drop below 4.5V, as the L-grade supports operation down to 2.7V.

Part Context

This component belongs to the LTC2630 family of single DACs available in 8-, 10-, and 12-bit resolutions. The CSC6 designation identifies the 6-lead SC70 plastic package type. The LM12 configuration distinguishes it from LZ12 (zero-scale reset) and HM12/HZ12 variants which utilize a 4.096V internal reference and require higher supply voltages (4.5V–5.5V).

Replacement Considerations

Direct pin-compatible substitutes within the same family include LTC2630CSC6-LZ12#TRPBF (zero-scale reset) or LTC2630CSC6-HM12#TRPBF (4.096V reference, higher voltage requirement). Verify that any replacement meets the specific power-on reset behavior and full-scale voltage requirements of the original design.