LTC2637IMS-LZ10#TRPBF

Overview

The LTC2637IMS-LZ10#TRPBF is an octal 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices Inc., housed in a 16-lead MSOP package. It features an integrated precision reference with a full-scale output of 2.5V and operates on a single 2.7V to 5.5V supply. The device communicates via a 2-wire I2C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±1 LSB, a settling time of 4.1µs at ±1 LSB accuracy, and rail-to-rail buffered outputs guaranteed monotonic over the industrial temperature range of –40°C to 85°C.

Feature Summary

• Octal architecture providing eight independent 10-bit DAC channels in a compact 16-lead MSOP package.
• Integrated low-drift reference yielding a 2.5V full-scale output with a temperature coefficient of ±10ppm/°C.
• Ultralow crosstalk between DAC channels, specified at less than 3nV•s.
• Power-on reset circuit configurable to initialize outputs to zero-scale or mid-scale.

Applications

• Mobile communications systems
• Process control and industrial automation
• Automatic test equipment
• Portable battery-powered equipment
• Automotive electronics

Procurement Notes

Verify the specific suffix #TRMPBF if tape-and-reel quantities differ from the standard 2500-piece reel configuration. Confirm that the 'I' grade designation matches the required –40°C to 85°C operating temperature range for the target application environment.

Selection Notes

Select this part when multiple isolated analog outputs are required within a small footprint. Ensure the system supply voltage remains within the 2.7V to 5.5V range compatible with the 'L' variant. Consider the external reference mode if a different full-scale voltage than 2.5V is necessary by utilizing the REF pin input.

Part Context

This component belongs to the LTC2637 family, which includes 12-bit, 10-bit, and 8-bit resolutions. The IMS8 package variant distinguishes it from the 14-lead DFN version. Other suffixes indicate different power-on reset behaviors (MI for mid-scale, MX for external reference mid-scale) or higher voltage ranges (H-grade for 4.096V full-scale).

Replacement Considerations

Direct functional substitutes within the same family include the LTC2637IMS-LZ12#TRPBF (12-bit resolution) and LTC2637IMS-LZ8#TRPBF (8-bit resolution), provided the pinout and package dimensions remain identical for PCB compatibility.