LTC2632CTS8-HZ12

Overview

The LTC2632CTS8-HZ12 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 full-scale output of 4.096V with a temperature coefficient of 10ppm/°C. The device operates on a single supply voltage ranging from 4.5V to 5.5V and communicates via a 3-wire SPI/MICROWIRE compatible interface supporting clock rates up to 50MHz. It includes rail-to-rail output buffers and guarantees monotonicity without missing codes. Upon power-up, the outputs reset to zero-scale in internal reference mode.

Feature Summary

• Dual 12-bit resolution with maximum Integral Nonlinearity (INL) error of ±2.5LSB
• Integrated 4.096V full-scale reference with 10ppm/°C drift
• Power-on reset function sets outputs to zero-scale
• Operates within a 4.5V to 5.5V supply range

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation to confirm the package type, temperature grade, and power-on reset behavior. Ensure the supply voltage meets the minimum requirement of 4.5V for the H-grade variant. Confirm RoHS compliance status through official datasheets or distributor specifications prior to procurement.

Selection Notes

Select this component when a dual-channel DAC with high accuracy and low drift is required in a compact surface-mount package. The H-grade designation indicates suitability for applications requiring a 4.096V full-scale range. Consider the Z-suffix if system initialization requires outputs to default to zero-volts upon power-up rather than mid-scale.

Part Context

This part belongs to the LTC2632 family, which offers various combinations of resolution (8-, 10-, or 12-bit), full-scale voltage (2.5V or 4.096V), and power-on reset options. The CTS8 designation specifies the commercial temperature grade (0°C to 70°C) and the 8-lead TSOT-23 plastic package format.

Replacement Considerations

Direct substitutes include other parts within the LTC2632 family such as the LTC2632CTS8-HI12, which shares the same package and electrical characteristics but resets to mid-scale upon power-up instead of zero-scale.