LTC2704CGW-14#TRPBF

Overview

The LTC2704CGW-14#TRPBF is a quad, 14-bit voltage output SoftSpan DAC in a 44-lead SSOP package. It operates with logic supplies from 3V to 5V and analog supplies of ±5V to ±15V. Key electrical parameters include integral nonlinearity (INL) and differential nonlinearity (DNL) of ±1 LSB over the industrial temperature range (0°C to 70°C). The device features six programmable output ranges, serial readback capabilities, and outputs that drive ±5mA. Power consumption is low, with supply current typically at 17.5 mA for analog supplies and 0.5 µA for digital logic.

Feature Summary

• SoftSpan technology enables six programmable output ranges: two unipolar (0V to 5V, 0V to 10V) and four bipolar (±2.5V, ±5V, ±10V, –2.5V to 7.5V).
• Serial readback of all on-chip registers allows verification via a 3-wire SPI interface.
• Force/Sense outputs facilitate remote sensing for improved load regulation.
• Glitch impulse is less than 2 nV-sec, and outputs can source or sink ±5mA.

Applications

• Process control and industrial automation systems
• Direct digital waveform generation
• Software controlled gain adjustment circuits
• Automated test equipment

Procurement Notes

Verify the #TRPBF suffix indicates tape and reel packaging rather than tube packaging. Confirm the CGW designation corresponds to the commercial temperature range of 0°C to 70°C. Ensure the specific lot date code meets project requirements as manufacturing dates vary by batch.

Selection Notes

Select this component when a quad DAC with 14-bit resolution and ±1 LSB linearity is required. Choose this part over the -16 or -12 variants based on specific resolution needs while maintaining pin compatibility. Verify that the analog supply rails support the desired SoftSpan output ranges, particularly for bipolar configurations requiring higher voltage swings.

Part Context

This part belongs to the LTC2704 family, which includes 12-, 14-, and 16-bit versions. All variants share identical pinouts and functionality, differing only in resolution and specific linearity specifications. The -14 variant offers a balance between precision and data throughput for general-purpose industrial applications.

Replacement Considerations

Pin-compatible alternatives within the same series include the LTC2704CGW-12#TRPBF and LTC2704CGW-16#TRPBF. These parts maintain the same package and interface but offer different resolutions. No other manufacturer parts are confirmed as direct substitutes in the provided documentation.