LTC2704IGW-12#TRPBF

Overview

The LTC2704IGW-12#TRPBF is a quad 12-bit voltage output SoftSpan DAC in a 44-lead SSOP package. It operates with analog supplies from ±5V to ±15V and logic supplies from 3V to 5V. Key electrical parameters include ±1 LSB INL and DNL over the industrial temperature range (-40°C to +85°C). The device features six programmable output ranges, serial readback of all on-chip registers, and outputs that drive ±5mA. Power consumption is low, with supply current typically 17.5mA at ±15V and 1mA in sleep mode.

Feature Summary

• SoftSpan technology provides 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 allows verification of any on-chip register via a 3-wire SPI interface.
• Force/Sense outputs enable remote sensing for improved load regulation.
• Glitch impulse is less than 2nV-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 ordering suffix #TRPBF indicates tape and reel packaging. Confirm the IGW suffix corresponds to the industrial temperature range (-40°C to +85°C) and the 44-lead SSOP package. Ensure the specific part number matches the required resolution variant, as this model specifies 12-bit accuracy.

Selection Notes

Select this component when four independent 12-bit channels are required with software-programmable voltage spans. It is suitable for applications needing high linearity (±1 LSB INL/DNL) and low power consumption. Consider the ±5V to ±15V analog supply requirement and the need for an external reference if using non-standard spans.

Part Context

This part belongs to the LTC2704 family, which includes 12-, 14-, and 16-bit variants. The LTC2704-12 offers 12-bit resolution with ±1 LSB INL and DNL. All variants share pin compatibility and the same 44-lead SSOP package, allowing for design flexibility across different precision requirements within the same hardware footprint.

Replacement Considerations

Pin-compatible alternatives within the same series include the LTC2704IGW-14#TRPBF (14-bit) and LTC2704IGW-16#TRPBF (16-bit). These parts share identical pinouts and functionality but offer higher resolution. Verify that the increased resolution meets system requirements without affecting timing or interface compatibility.