LTC2630AHSC6-LM12#TRPBF

Overview

The LTC2630AHSC6-LM12#TRPBF is a single-channel, 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It integrates a 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 features a rail-to-rail buffered output. It utilizes a 3-wire SPI/MICROWIRE compatible serial interface supporting clock rates up to 50MHz. Key electrical specifications include a maximum integral nonlinearity (INL) of ±1 LSB for the A-grade device, a typical settling time of 4.4µs at 3V, and low power consumption of 180µA at 3V.

Feature Summary

• 12-bit resolution with guaranteed monotonicity over temperature
• Integrated precision reference yielding 2.5V full-scale output (10ppm/°C drift)
• Maximum INL error of ±1 LSB (A-grade specification)
• 3-wire SPI/MICROWIRE serial interface with SCK up to 50MHz

Applications

• Mobile communications systems
• Process control and industrial automation instrumentation
• Automatic test equipment (ATE)
• Portable battery-powered equipment
• Automotive electronic modules

Procurement Notes

Verify the specific ordering suffix #TRMPBF indicates a 500-unit tape and reel packaging option, distinct from the standard 2,500-piece TR configuration. Confirm the H temperature grade (-40°C to 125°C) matches the application environment requirements. Ensure the LM power-on reset setting (Mid-Scale) aligns with system initialization protocols. Cross-reference the SC6 package type for footprint compatibility during procurement planning.

Selection Notes

Select this component when a compact 6-lead SC70 package is required alongside high accuracy (±1 LSB INL). The A-grade designation ensures tighter linearity performance compared to standard grades. Choose the LM variant if mid-scale initialization upon power-up is preferred over zero-scale. Verify that the 2.5V internal reference range suits the downstream signal requirements, or consider the H-grade variants for 4.096V outputs if higher voltage swings are necessary.

Part Context

This part belongs to the LTC2630 family of single-channel DACs available in 8-, 10-, and 12-bit resolutions. The 'A' denotes the electrical grade with ±1 LSB max INL, while 'H' specifies the automotive temperature range (-40°C to 125°C). The 'LM12' suffix defines the 2.5V full-scale voltage, mid-scale power-on reset behavior, and 12-bit resolution. The device competes in the market for space-constrained, low-power data acquisition applications requiring integrated references.

Replacement Considerations

Direct pin-compatible replacements within the same family include the LTC2630AHSC6-LZ12#TRPBF (Zero-scale reset) or LTC2630AHSC6-HM12#TRPBF (4.096V full-scale). For different resolutions, the LTC2630AHSC6-LM10#TRPBF (10-bit) or LTC2630AHSC6-LM8#TRPBF (8-bit) share the same interface and package but offer lower resolution and potentially different linearity specs.