LTC2630CSC6-HM12#TRMPBF

Overview

The LTC2630CSC6-HM12#TRMPBF is a single-channel, 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It integrates a precision reference yielding a 4.096V full-scale output and operates within a 4.5V to 5.5V supply range. The device features a rail-to-rail output buffer, guaranteed monotonicity, and an SPI/MICROWIRE compatible 3-wire serial interface with clock rates up to 50MHz. Key electrical parameters include a maximum integral nonlinearity (INL) of ±1 LSB for the A-grade variant, a settling time of 4.8µs at 5V, and a typical supply current of 200µA. It includes power-on reset options and double-buffered data latches.

Feature Summary

• Integrated Precision Reference: Provides a stable 4.096V full-scale output with a temperature coefficient of 10ppm/°C.
• High Accuracy: Guaranteed monotonic operation with a maximum Integral Nonlinearity (INL) error of ±1 LSB.
• Low Power Consumption: Typical supply current of 200µA at 5V; power-down mode reduces current to 1.8µA maximum.
• Compact Packaging: Available in a tiny 6-lead SC70 surface-mount package.

Applications

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

Procurement Notes

Verify the specific suffix #TRMPBF indicates a 500-unit tape and reel packaging option. Confirm the 'H' grade corresponds to the automotive temperature range (-40°C to +125°C) and the 'M' suffix denotes the mid-scale power-on reset configuration. Ensure compatibility with the required 4.5V to 5.5V supply voltage constraints.

Selection Notes

Select this part when a compact, low-power 12-bit DAC with an integrated high-accuracy reference is required. The 'H' suffix specifies a 4.096V full-scale output suitable for 5V systems, while the 'M' suffix ensures the output resets to mid-scale upon power-up. Choose the 'A' grade if stricter linearity specifications (±1 LSB INL) are necessary compared to the standard ±2 LSB specification.

Part Context

This component belongs to the LTC2630 family of single-channel DACs. The ordering code structure defines key attributes: 'C' indicates the commercial temperature grade (0°C to 70°C), although the 'H' suffix typically denotes the extended automotive grade (-40°C to 125°C); verify the specific datasheet sheet for the exact temperature rating associated with the 'C' prefix in this specific part number context. The 'SC6' denotes the 6-lead SC70 package, and '12' specifies 12-bit resolution.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consider other members of the LTC2630 family, such as the LTC2630HSC6-LM12#TRMPBF, which shares the same package and interface but offers a 2.5V full-scale output instead of 4.096V.

FAQ

What is the power-on reset behavior for the LTC2630CSC6-HM12?

The 'M' suffix in the part number indicates that the DAC output resets to mid-scale when power is first applied.

Can the LTC2630 operate with an external reference?

Yes, the device supports a 'Supply as Reference' mode where VCC acts as the reference voltage, selectable via the serial interface command 0111.

What is the maximum serial clock frequency?

The SCK frequency can operate up to 50 MHz with a 50% duty cycle.