LTC6912IDE-2#PBF

Overview

The LTC6912IDE-2#PBF is a dual-channel, low-noise, digitally programmable gain amplifier (PGA) from Analog Devices. It features independent gain control via a 3-wire SPI interface for each channel. The device supports voltage gains of 0, 1, 2, 4, 8, 16, 32, and 64 V/V with rail-to-rail input and output capabilities. Operating on single or split supplies ranging from 2.7V to 10.5V total, it offers an input noise density of 12.6nV/√Hz at high gains and a maximum offset voltage of 2mV over the industrial temperature range.

Feature Summary

• Dual channels with independent digital gain programming via 3-wire SPI
• Rail-to-rail input and output signal processing capability
• Low power hardware shutdown mode available in GN package variants
• Wired-OR output configuration enabling analog multiplexing functions

Applications

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

Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and standard tube packaging when sourcing. Confirm the IDE designation corresponds to the industrial temperature grade (-40°C to 85°C). Ensure the DFN-12 package footprint matches the target PCB design constraints. Cross-reference the manufacturer's current lifecycle status as availability may vary by region.

Selection Notes

Select this component for applications requiring precise, digitally adjustable gain without external resistors. The -2 suffix denotes the specific gain ladder (powers of two), distinct from the -1 variant. Consider the DFN-12 package for space-constrained designs. Verify that the required gain settings align with the binary-weighted steps provided by the -2 model.

Part Context

This part belongs to the LTC6912 family of dual programmable gain amplifiers. It shares architectural similarities with the LTC6912-1 but utilizes a different gain selection logic. The series is designed for compact signal conditioning in portable and industrial instrumentation where board space and power consumption are critical factors.

Replacement Considerations

LTC6912CDE-2#PBF serves as the commercial temperature grade equivalent.