TLV5619QDWR

Digital To Analog Converters Overview

The TLV5619QDWR is a 12-bit, single-channel voltage-output digital-to-analog converter (DAC) from Texas Instruments. It operates on a single supply ranging from 2.7 V to 5.5 V and features a microprocessor-compatible parallel interface with double-buffered data inputs. The device utilizes a resistor-string architecture and includes an internal power-on reset. Its output is buffered by a rail-to-rail amplifier with Class A characteristics, providing a gain of x2. Key electrical specifications include ±0.4 LSB differential nonlinearity, ±1.5 LSB integral nonlinearity, and a typical settling time of 1 µs. Power consumption is 8 mW at 5 V and 4.3 mW at 3 V, reducible to 50 nW in power-down mode.

Digital To Analog Converters Feature Summary

• Features a 12-bit parallel interface compatible with TMS320 DSPs and standard microprocessors.
• Includes a rail-to-rail output buffer amplifier with Class A stage for improved stability and reduced settling time.
• Supports asynchronous updates via the LDAC pin while maintaining double-buffered input registers.

Digital To Analog Converters Applications

• Battery-powered test instruments
• Digital offset and gain adjustment circuits
• Machine and motion control devices

Digital To Analog Converters Procurement Notes

Verify the specific suffix 'Q' indicates automotive qualification requirements before procurement. Confirm the 'DW' package designation matches the required SOIC-20 footprint. Ensure the operating temperature range aligns with system constraints. Check current production status as availability may vary. Validate RoHS compliance details against local regulatory standards.

Digital To Analog Converters Selection Notes

Select this component when a high-resolution 12-bit DAC with a parallel interface is required. Consider the TLV5619QDWR for applications needing low power consumption and fast settling times. Evaluate the need for automotive-grade reliability if operating in harsh environments. Compare against serial interface alternatives if pin count reduction is critical.

Digital To Analog Converters Part Context

The TLV5619 belongs to the TLV5619 series of 12-bit DACs. Variants include industrial grade parts like TLV5619IDWR and commercial grade parts like TLV5619CDWR. The Q-series variant specifically targets automotive applications, offering extended temperature ranges and enhanced reliability compared to standard industrial versions.

Digital To Analog Converters Replacement Considerations

Direct replacements within the same family include TLV5619IDWR for industrial temperature ranges. For automotive contexts, verify compatibility with other qualified variants in the series. Cross-reference pinouts and electrical specifications to ensure functional equivalence without redesigning the host circuitry.

Digital To Analog Converters FAQ

What is the maximum reference voltage allowed for the TLV5619QDWR?

The reference voltage applied to the REFIN terminal must not exceed VDD minus 1.5 V. For a 5-V supply, this limits the reference to approximately 3.5 V, though typical operation uses lower values like 2.048 V.

How does the power-down mode function?

Setting the PD pin low disables all buffer amplifier voltages, reducing the supply current to approximately 50 nW. This mode significantly lowers power consumption during idle periods.

Is the output voltage unipolar or bipolar?

The TLV5619QDWR provides a unipolar voltage output. The output range extends from ground up to nearly the full-scale voltage determined by the reference input.