LTC2637IMS-LZ10#PBF

Overview

The LTC2637IMS-LZ10#PBF is an octal 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features a 16-lead MSOP package and operates on a single 2.7V to 5.5V supply. The device integrates a precision internal reference with a full-scale output of 2.5V and a temperature coefficient of 10ppm/°C. Communication is handled 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 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 high-accuracy internal reference delivering a 2.5V full-scale output with 10ppm/°C drift.
• Ultralow crosstalk between DAC channels, specified at less than 3nV•s.
• Power-on reset circuit configured to initialize all outputs to zero-scale upon power-up.

Applications

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

Procurement Notes

Verify that the component matches the specific ordering suffix requirements for the intended application. Confirm the package type is 16-lead MSOP and the temperature grade is Industrial (-40°C to 85°C). Ensure the internal reference configuration aligns with the system's power-on reset expectations, as this part resets to zero-scale.

Selection Notes

Select this model when eight isolated voltage outputs are required within space-constrained designs. The 10-bit resolution offers a balance between accuracy and data throughput. Consider the 2.7V to 5.5V supply range for compatibility with various logic levels. For applications requiring higher resolution or different reset behaviors, other variants in the LTC2637 family should be evaluated.

Part Context

This component belongs to the LTC2637 family of octal DACs, which also includes 8-bit and 12-bit resolution options. The 'IMS' designation indicates the 16-lead MSOP package and Industrial temperature grade, while 'LZ10' specifies the 2.5V internal reference, zero-scale power-on reset, and 10-bit resolution.

Replacement Considerations

Direct functional equivalents within the same family include the LTC2637IMS-LMI10#PBF (mid-scale reset) and the LTC2637IMS-HZ10#PBF (4.096V reference). Cross-family replacements require verification of pinout compatibility and interface protocols.