LTC6912CDE-1#PBF

Overview

The LTC6912CDE-1#PBF is a dual-channel, low-noise, digitally programmable gain amplifier (PGA) from Analog Devices. It features independent gain control for two channels via a 3-wire SPI interface. The device supports voltage gains of 0, 1, 2, 5, 10, 20, 50, and 100V/V with all gains being inverting. It operates on single or dual supplies ranging from 2.7V to 10.5V total. Key electrical characteristics include a maximum offset voltage of 2mV over the temperature range of –40°C to 85°C, channel-to-channel gain matching of 0.1dB max, and a typical input noise density of 12.6nV/√Hz.

Feature Summary

• Dual matched amplifiers with rail-to-rail inputs and outputs
• Digitally programmable gain settings controlled by a 3-wire serial interface
• Internal half-supply reference generation for single supply applications
• Low power hardware shutdown capability available in specific package options

Applications

• Data acquisition systems
• Automatic gain control circuits
• Dynamic gain changing applications
• Automatic ranging circuits

Procurement Notes

Verify that the ordering suffix #PBF confirms lead-free status and RoHS compliance as specified by the manufacturer. Confirm the C suffix indicates the commercial temperature grade suitable for operation between –40°C and 85°C. Ensure the DE-1 designation matches the required DFN-12 package and LTC6912-1 gain configuration before procurement.

Selection Notes

Select this component when dual-channel signal conditioning with precise digital gain control is required. The LTC6912-1 variant provides specific gain steps including 50V/V and 100V/V. Consider the DFN-12 package for space-constrained designs. Verify that the 3-wire SPI interface compatibility exists within the host system architecture.

Part Context

This part belongs to the LTC6912 family of dual programmable gain amplifiers. The family includes variants such as the LTC6912-2 which offers different gain steps (powers of two). Other package options include the SSOP-16 (GN) format. The device integrates precision analog front-end capabilities into a compact surface-mount footprint.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.