LTC2637CDE-LZ10#TRPBF

Overview

The LTC2637CDE-LZ10#TRPBF is an octal 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices Inc., housed in a 14-lead 4mm × 3mm DFN package. It features an integrated precision reference providing a 2.5V full-scale output with a temperature coefficient of ±10ppm/°C. The device operates on a single 2.7V to 5.5V supply and 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 3V, and rail-to-rail buffered outputs guaranteed monotonic over the commercial temperature range of 0°C to 70°C.

Feature Summary

• Octal architecture with 8 independent 10-bit DAC channels in a compact 14-lead DFN package
• Integrated 2.5V precision reference with ±10ppm/°C temperature coefficient
• I2C-compatible serial interface with selectable slave addresses via CA0 pin
• Power-on reset circuit configured to initialize all outputs to zero-scale

Applications

• Mobile communications systems
• Process control and industrial automation instrumentation
• Portable battery-powered equipment
• Automotive electronic modules
• Optical networking components

Procurement Notes

Verify the specific ordering suffix #TRPBF confirms the tape and reel packaging format containing 2500 pieces. Confirm the 'C' designation matches the required commercial operating temperature range of 0°C to 70°C for the target application environment.

Selection Notes

Select this part when eight low-channel-count DACs are required in a minimal footprint. The internal 2.5V reference eliminates external component needs but limits the maximum output swing compared to the H-grade variant. Ensure the system power supply remains within the 2.7V to 5.5V range specified for the L-series devices.

Part Context

This component belongs to the LTC2637 family, which includes 8-bit, 10-bit, and 12-bit resolution options. The CDE suffix identifies the commercial grade temperature rating and the 14-lead DFN physical package. Other variants exist with different reset behaviors (Mid-Scale vs Zero-Scale) and higher voltage references (H-series).

Replacement Considerations

Direct substitutes within the same family include LTC2637CDE-LZ8#TRPBF (8-bit) and LTC2637CDE-LZ12#TRPBF (12-bit), provided the resolution difference is acceptable. For mid-scale reset behavior, consider the LTC2637CDE-LMI10#TRPBF variant.